CN111811975A - Microwave-assisted TBM double-hob linear cutting rock breaking test device - Google Patents
Microwave-assisted TBM double-hob linear cutting rock breaking test device Download PDFInfo
- Publication number
- CN111811975A CN111811975A CN202010608020.2A CN202010608020A CN111811975A CN 111811975 A CN111811975 A CN 111811975A CN 202010608020 A CN202010608020 A CN 202010608020A CN 111811975 A CN111811975 A CN 111811975A
- Authority
- CN
- China
- Prior art keywords
- microwave
- hob
- tbm
- hydraulic cylinder
- rock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/58—Investigating machinability by cutting tools; Investigating the cutting ability of tools
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0053—Cutting or drilling tools
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0057—Generation of the force using stresses due to heating, e.g. conductive heating, radiative heating
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a microwave-assisted TBM double-hob linear cutting rock breaking test device, which is characterized in that a microwave heating device and a TBM hob rock breaking device are combined for the first time, microwave irradiation can be arranged at the middle position of a hob cutting track or on the same track as the hob cutting track, and the microwave-assisted TBM double-hob linear cutting rock breaking test device is used for researching the cutting performance of a TBM hob under the action of microwave and the cutting rock breaking and abrasion mechanism of the TBM hob under the action of microwave, determining reasonable penetration and hob spacing under the action of microwave, and further researching a novel rock breaking technology combining a hard rock microwave fracturing technology and TBM equipment.
Description
Technical Field
The invention belongs to the technical field of geotechnical engineering and tunnel engineering, and particularly relates to a microwave-assisted TBM double-hob linear cutting rock breaking test device.
Background
TBM (full-face hard rock tunnel boring machine) is widely applied to tunnel engineering of railways, hydropower, highways, subways and the like needing to pass through rock strata. As one of the main ways of tunnel construction, there are a series of advantages that are difficult to realize by the traditional drilling and blasting method, such as: the method has the advantages of high tunneling speed, environmental friendliness, strong geological adaptability, high construction precision, high comprehensive benefit and the like. However, the domestic TBM has low domestic market share, and the domestic key parts have a larger gap compared with foreign products. Particularly, the method relates to national defense safety, national strategic military engineering, national soil resources and the like which are not suitable for foreign institutions to participate, so that the method is very urgent to accelerate the localization of TBM. Disc cutters (referred to as hob cutters) are the main cutters for cutting broken rocks on the TBM, however, when the tunnel is encountered with hard rocks or extremely hard rocks, the abrasion of the hob cutters of the TBM is serious, so that the maintenance rate and the construction cost are increased, the construction period is delayed, and the TBM is difficult to pass through in serious cases.
At present, many research institutions are exploring novel auxiliary rock breaking technologies, such as high-pressure water jet rock breaking, laser rock breaking, microwave rock breaking, electric blasting rock breaking and the like, wherein the microwave auxiliary rock breaking is a very potential novel rock breaking technology and is used for solving the problem that a cutter is seriously abraded when a TBM hob cuts hard rocks. In recent years, research investment and effort in the technical field of design, preparation and application of TBMs are increased in colleges and universities and scientific research institutes at home and abroad, wherein a TBM hob rock breaking test bed is an important way and means for developing hob rolling rock breaking test researches, deeply researching a rock breaking mechanism and a hob abrasion mechanism, simulating a TBM excavation process and designing TBM key components.
However, the existing TBM hob rock breaking test bed is not designed in research and development by combining a novel rock breaking technology, such as a hard rock microwave fracturing technology. Therefore, the current TBM hob rock breaking test bed cannot be used for researching the microwave-assisted TBM hob rock breaking (no microwave-assisted TBM hob rock breaking test device exists at present). Moreover, when the arrangement mode of the hob and the microwave heater is different, the hob cuts and breaks rocks and has different wearing mechanisms,
therefore, it is urgently needed to design a microwave-assisted TBM double-hob linear cutting rock-breaking test device, the microwave irradiation track and the hob cutting track are adjustable, the device is used for researching a new technology for combining hard rock microwave fracturing and TBM equipment, researching the mechanism of cutting rock-breaking and abrasion of the TBM hob under the action of microwaves, and researching the influence of the microwave irradiation rock on the cutting performance of the TBM hob, and the device is an important way and means for simulating the microwave-assisted TBM rock-breaking process and designing key components of a novel microwave pre-splitting TBM, so as to realize research, development, design and engineering application of the novel microwave pre-splitting TBM as soon as possible.
Disclosure of Invention
In order to make up for the vacancy in the prior art, the invention provides a microwave-assisted TBM double-hob linear cutting rock-breaking test device which can perform a cutting rock-breaking test of microwave irradiation and a TBM hob in the same track or different tracks. The test device can be used for researching a new technology combining hard rock microwave fracturing and TBM equipment, determining the mechanism of rock breaking and abrasion of the TBM hob under the action of microwaves, and researching the influence of the microwaves irradiating the rock on the cutting performance of the TBM hob under different tracks.
In order to achieve the purpose, the invention adopts the following technical scheme: a microwave-assisted TBM double-hob linear cutting rock breaking test device comprises a hob loading assembly and a microwave irradiation assembly. The hobbing cutter loading assembly comprises: the device comprises a vertical hydraulic cylinder I, a rack I, a vertical guide rail I, a movable cross beam I, a force measuring device I, a hob head I, a hob I, a force measuring device II, a hob head II, a hob II, a rock sample, a rock bin, a horizontal workbench, a transverse guide rail, a transverse hydraulic cylinder, a rack base, a vertical hydraulic cylinder II, a rack II, a vertical guide rail II and a movable cross beam II.
The vertical hydraulic cylinder I and the vertical hydraulic cylinder II are respectively fixed at the upper ends of the rack I and the rack II; the machine frame I and the machine frame II are connected through high-strength bolts and form a closed frame structure with a machine frame base; the vertical guide rail I and the vertical guide rail II are respectively fixed on the inner sides of the rack I and the rack II; the movable cross beam I is connected with the vertical hydraulic cylinder I and the vertical guide rail I respectively, and can move up and down on the vertical guide rail I under the driving of the vertical hydraulic cylinder I; the movable cross beam II is respectively connected with the vertical hydraulic cylinder II and the vertical guide rail II, and the movable cross beam II can move up and down on the vertical guide rail II under the driving of the vertical hydraulic cylinder II. The lower ends of the force measuring device I and the force measuring device II are respectively connected with the hob head I and the hob head II; the force measuring device I and the force measuring device II can horizontally move on the movable cross beam I along the movable cross beam I, so that the distance between the hob head I and the hob head II is adjustable; and the hob I and the hob II are respectively arranged on the hob head I and the hob head II. The force measuring device I and the force measuring device II can be used for measuring three-dimensional forces (vertical force, rolling force and lateral force) acting on the hob cutter I and the hob cutter II respectively. Various types of cutters, single-edge hobs, double-edge hobs and the like can be arranged on the movable cross beam I.
The transverse hydraulic cylinder and the transverse guide rail are fixed on the frame base; the lower side of the horizontal workbench is connected with the transverse hydraulic cylinder and the transverse guide rail, and the horizontal workbench can horizontally move along the transverse guide rail under the driving of the transverse hydraulic cylinder; the rock bin is fixed on the horizontal workbench, the rock sample is placed in the rock bin, and concrete is adopted to pour the rock sample during testing; the horizontal hydraulic cylinder is pressurized by a hydraulic system to drive the horizontal workbench to do horizontal movement on the horizontal guide rail, so that the rock sample generates a rolling effect relative to the hob, and a hob rolling cutting test is realized.
The microwave irradiation assembly has two forms, a first form being single microwave irradiation and a second form being dual microwave irradiation. The first version comprises a microwave device, and microwave irradiation can be arranged in the middle of the cutting tracks of the two hobs when the test is carried out. The first form comprises: microwave generator I, transmission waveguide I, temperature measuring device, microwave heater I. The microwave generator I is fixed on the movable cross beam II and connected with a microwave power supply through a cable and used for converting electric energy into microwave energy; the movable cross beam II can move up and down on the vertical rail II under the driving of the vertical hydraulic cylinder II and is used for adjusting the distance between the microwave heater I and the rock sample; the microwave generator I can be set with different microwave powers and action times; the transmission waveguide I is connected with the microwave generator I and is used for transmitting microwave energy; the length of the transmission waveguide I is adjustable, and the transmission waveguide I is used for adjusting the distance between the microwave heater and the hob; the microwave heater I is connected with the waveguide I and is used for emitting microwave energy to the rock sample. The microwave heater can be of various types, such as a straight waveguide heater, a pyramid horn heater, a focusing heater and the like. The temperature measuring device I is arranged on the transmission waveguide I and used for testing the temperature of the irradiated position of the rock in the microwave heating process.
The second form includes two sets of microwave devices, identical in structure, with microwave irradiation being arranged on the same path as the hob cuts. The second form comprises: the microwave heating device comprises a microwave generator I, a transmission waveguide I, a temperature measuring device, a microwave heater I, a microwave generator II, a transmission waveguide II and a microwave heater II. The microwave generator I and the microwave generator II are both fixed on the movable cross beam II and are connected with a microwave power supply through cables for converting electric energy into microwave energy; the movable cross beam II can move up and down on the vertical rail II under the driving of the vertical hydraulic cylinder II and is used for adjusting the distance between the microwave heater I and the distance between the microwave heater II and the rock sample; the length of the transmission waveguide I and the length of the transmission waveguide II are adjustable, and the transmission waveguides are used for adjusting the distance between the microwave heater and the hob; the transmission waveguide I and the transmission waveguide II are respectively connected with the microwave generator I and the microwave generator II and are used for transmitting microwave energy; the microwave generator I and the microwave generator II can be set with different microwave powers and action times; the microwave heater I and the microwave heater II are respectively connected with the transmission waveguide I and the transmission waveguide II and used for transmitting microwave energy to the rock sample. The microwave heater can be of various types, such as a straight waveguide heater, a pyramid horn heater, a focusing heater and the like. The temperature measuring device I is arranged on the transmission waveguide I and used for testing the temperature of the irradiated position of the rock in the microwave heating process.
The invention has the beneficial effects that: according to the microwave-assisted rock breaking test device for the TBM hob, a microwave heating device and the TBM hob rock breaking device are combined for the first time, microwave irradiation can be arranged at the middle position of a hob cutting track or on the same track as the hob cutting track, the microwave-assisted rock breaking test device is used for researching the cutting performance of the TBM hob under the action of microwave and the rock breaking and abrasion mechanism of the TBM hob under the action of microwave, determining reasonable penetration and hob spacing under the action of microwave, and further researching a novel rock breaking technology combining a hard rock microwave fracturing technology and TBM equipment.
Drawings
FIG. 1 is a perspective view of a first form of the test device of the present invention;
FIG. 2 is a left side view of a first version of the test device of the present invention;
FIG. 3 is a sectional view A-A of the left side of a first form of the test device of the present invention;
FIG. 4 is a right side view of a first version of the test device of the present invention;
FIG. 5 is a front view of a second form of test device according to the present invention;
FIG. 6 is a sectional view B-B of a front view of a second form of the test device of the present invention;
FIG. 7 is a diagram of the position of a rock sample prior to testing with the test apparatus of the present invention;
FIG. 8 is a diagram of the position of a rock sample after testing by the test apparatus of the present invention;
in the figure, 1-vertical hydraulic cylinder I, 2-frame I, 3-vertical guide rail I, 4-movable cross beam I, 5-force measuring device I, 6-hob head I, 7-hob I, 8-force measuring device II, 9-hob head II, 10-hob II, 11-rock sample, 12-rock bin, 13-horizontal workbench, 14-transverse guide rail, 15-transverse hydraulic cylinder, 16-frame base, 17-vertical hydraulic cylinder II, 18-frame II, 19-vertical guide rail II, 20-movable cross beam II, 21-microwave generator I, 22-transmission waveguide I, 23-temperature measuring device, 24-microwave heater I, 25-microwave generator II, 26-transmission waveguide II and 27-microwave heater II.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in FIGS. 1-8, the microwave-assisted TBM double-hob linear cutting rock breaking test device comprises a hob loading assembly and a microwave irradiation assembly. The hobbing cutter loading assembly comprises: the device comprises a vertical hydraulic cylinder I1, a rack I2, a vertical guide rail I3, a movable cross beam I4, a force measuring device I5, a hob head I6, a hob I7, a force measuring device II 8, a hob head II 9, a hob II 10, a rock sample 11, a rock bin 12, a horizontal workbench 13, a transverse guide rail 14, a transverse hydraulic cylinder 15, a rack base 16, a vertical hydraulic cylinder II 17, a rack II 18, a vertical guide rail II 19 and a movable cross beam II 20.
The vertical hydraulic cylinder I1 and the vertical hydraulic cylinder II 17 are respectively fixed at the upper ends of the rack I2 and the rack II 18; the machine frame I2 and the machine frame II 18 are connected through high-strength bolts and form a closed frame structure with the machine frame base 16; the vertical guide rail I3 and the vertical guide rail II 19 are respectively fixed on the inner sides of the rack I2 and the rack II 18; the movable cross beam I4 is respectively connected with the vertical hydraulic cylinder I1 and the vertical guide rail I3, and the movable cross beam I4 can move up and down on the vertical guide rail I3 under the driving of the vertical hydraulic cylinder I1; the movable cross beam II 20 is respectively connected with the vertical hydraulic cylinder II 17 and the vertical guide rail II 19, and the movable cross beam II 20 can move up and down on the vertical guide rail II 19 under the driving of the vertical hydraulic cylinder II 17. The force measuring device I5 and the force measuring device II 8 are both fixed on the movable cross beam I4, and the lower ends of the force measuring device I5 and the force measuring device II 8 are respectively connected with the hob head I6 and the hob head II 9; the force measuring device I5 and the force measuring device II 8 can horizontally move on the movable cross beam I4 along the movable cross beam I4, so that the distance between the hob head I6 and the hob head II 9 is adjustable; and the hob I7 and the hob II 10 are respectively arranged on the hob head I6 and the hob head II 9. The force measuring device I5 and the force measuring device II 8 can be used for measuring three-way forces (vertical force, rolling force and lateral force) acting on the hob cutter I7 and the hob cutter II 10 respectively. Various types of cutters, single-edge hobs, double-edge hobs and the like can be arranged on the movable cross beam I4.
The transverse guide rail 14 and the transverse hydraulic cylinder 15 are fixed on a frame base 16; the lower side of the horizontal workbench 13 is connected with a transverse guide rail 14 and a transverse hydraulic cylinder 15, and the horizontal workbench 13 can horizontally move along the transverse guide rail 14 under the driving of the transverse hydraulic cylinder 15; the rock bin 12 is fixed on the horizontal workbench 13, the rock sample 11 is placed in the rock bin 12, and concrete is adopted to pour the rock sample 11 during testing; the transverse hydraulic cylinder 15 is pressurized by a hydraulic system to drive the horizontal workbench 13 to do transverse motion on the transverse guide rail 14, so that the rock sample 11 generates a rolling effect relative to the hob, and a hob rolling cutting test is realized.
The microwave irradiation assembly has two forms, a first form being single microwave irradiation and a second form being dual microwave irradiation. The first form includes a set of microwave means, and microwave irradiation may be arranged at an intermediate position in the cutting path of the two hobs. The first form comprises: the microwave heating device comprises a microwave generator I21, a transmission waveguide I22, a temperature measuring device 23 and a microwave heater I24. The microwave generator I21 is fixed on the movable cross beam II 20, and the microwave generator I21 is connected with a microwave power supply (not shown in the figure) through a cable and used for converting electric energy into microwave energy; the movable cross beam II 20 can move up and down on the vertical rail II 19 under the driving of the vertical hydraulic cylinder II 17 and is used for adjusting the distance between the microwave heater I24 and the rock sample 11; the microwave generator I21 can be set with different microwave powers and action times; the transmission waveguide I22 is connected with the microwave generator I21 and is used for transmitting microwave energy; the length of the transmission waveguide I22 is adjustable, and the transmission waveguide I is used for adjusting the distance between the microwave heater 24 and the hob; the microwave applicator I24 is connected to the input waveguide I22 for emitting microwave energy onto the rock sample 11. The microwave heater 24 may be of various types, such as a straight waveguide heater, a pyramidal horn heater, a focused heater, and the like. The temperature measuring device I23 is arranged on the transmission waveguide I22 and used for measuring the temperature of the irradiated position of the rock sample 11 in the microwave heating process.
The second form includes two sets of microwave devices, identical in structure, with microwave irradiation being arranged on the same path as the hob cuts. The second form comprises: the microwave heating device comprises a microwave generator I21, a transmission waveguide I22, a temperature measuring device 23, a microwave heater I24, a microwave generator II 25, a transmission waveguide II 26 and a microwave heater II 27. The microwave generator I21 and the microwave generator II 25 are both fixed on the movable cross beam II 20, and the microwave generator I21 and the microwave generator II 25 are both connected with a microwave power supply (not shown in the figure) through cables and are used for converting electric energy into microwave energy; the movable cross beam II 20 can move up and down on the vertical rail II 19 under the driving of the vertical hydraulic cylinder II 17 and is used for adjusting the distance between the microwave heater I24 and the microwave heater II 27 and the rock sample 11; the lengths of the transmission waveguide I22 and the transmission waveguide II 26 are adjustable, and the transmission waveguides are used for adjusting the distances between the microwave heaters I24 and II 27 and the hob; the transmission waveguide I22 and the transmission waveguide II 26 are respectively connected with the microwave generator I21 and the microwave generator II 25 and are used for transmitting microwave energy; the microwave generator I21 and the microwave generator II 25 can be set with different microwave powers and action times; the microwave heaters I24 and II 27 are connected to the transmission waveguides I22 and II 26, respectively, for emitting microwave energy onto the rock sample 11. The microwave heaters I24 and II 27 are of various types and can be straight waveguide heaters, pyramid horn heaters, focusing heaters and the like. The temperature measuring device I23 is mounted on the transmission waveguide I22 and is used for measuring the temperature of the irradiated position of the rock sample 11 in the microwave heating process (the temperature measuring device is also mounted on the transmission waveguide II 26 and is not shown in the figure).
The following describes a test procedure according to the present invention with reference to the accompanying drawings:
in this embodiment, the rock sample 11 is a rectangular parallelepiped, and when the test apparatus is operated, the rock magazine 12 in which the rock sample 11 is poured in advance is fixed to the horizontal table 13, and the horizontal table 13 is pushed by controlling the horizontal hydraulic cylinder 15, so that the rock sample 11 is moved to the right side of the rack base 16, as shown in fig. 7. The hob I7 and the hob II 10 are pushed by the vertical hydraulic cylinder I1 to move downwards to a certain position according to the preset penetration degree.
Taking the first form of the microwave irradiation assembly as an example, the movable cross beam II 20 is pushed by the vertical hydraulic cylinder II 17 to adjust the microwave heater I24 and the rock sample 11 to reach a certain heating distance, and the microwave power required by the test is set. And adjusting the position of the microwave generator I21 on the movable cross beam II 20 to enable the microwave heater I24 to be in the middle position of the cutting tracks of the hob cutter I7 and the hob cutter II 10. And then, a microwave power supply is turned on, so that the microwave heater I24 emits microwaves to the rock sample 11 according to the set microwave power, and the rock sample 11 is subjected to microwave irradiation cracking. Meanwhile, a transverse hydraulic cylinder 15 is pressurized through a hydraulic system to drive a horizontal workbench 13 to do transverse motion from right to left on a transverse guide rail 14, when a rock sample 11 moves to the lower portions of a hob I7 and a hob II 10, the hob I7 and the hob II 10 invade the rock sample 11 according to the set penetration degree, horizontal rolling pressure is applied to the hob I7 and the hob II 10 at the moment, and after the rock sample 11 moves to the left side from the right side (as shown in fig. 8), a hob rolling cutting test under the action of microwave heating is completed. In the test process, the temperature of the position, irradiated by microwaves, of the rock sample 11 is measured by a temperature measuring device 23 arranged on a transmission waveguide I22, and three-way forces (vertical force, rolling force and lateral force) acting on the hob I7 and the hob II 10 are measured by a force measuring device I5 and a force measuring device II 8 respectively.
Taking the second form of the microwave irradiation assembly as an example, the movable cross beam II 20 is pushed by the vertical hydraulic cylinder II 17 to adjust the microwave heaters I24 and I27 to reach a certain heating distance with the rock sample 11, and the microwave power required by the test is set. And adjusting the positions of the microwave generator I21 and the microwave generator II 25 on the movable cross beam II 20, so that the irradiation positions of the microwave heater I24 and the microwave heater I27 are respectively positioned on the cutting tracks of the hob cutter I7 and the hob cutter II 10. Then, a microwave power supply is turned on, so that the microwave heaters I24 and I27 emit microwaves to the rock sample 11 according to the set microwave power, and the rock sample 11 is subjected to microwave irradiation cracking. Meanwhile, a transverse hydraulic cylinder 15 is pressurized through a hydraulic system to drive a horizontal workbench 13 to do transverse motion from right to left on a transverse guide rail 14, when a rock sample 11 moves to the lower portions of a hob I7 and a hob II 10, the hob I7 and the hob II 10 invade the rock sample 11 according to the set penetration degree, horizontal rolling pressure is applied to the hob I7 and the hob II 10 at the moment, and after the rock sample 11 moves to the left side from the right side (as shown in fig. 8), a hob rolling cutting test under the action of microwave heating is completed. In the test process, the temperature of the position, irradiated by microwaves, of the rock sample 11 is measured by a temperature measuring device arranged on a transmission waveguide, and three-way forces (vertical force, rolling force and lateral force) acting on the hob I7 and the hob II 10 are respectively measured by a force measuring device I5 and a force measuring device II 8.
Other descriptions: because microwave energy can interfere with other signal transmission, all transmission cables in the sample device are shielded by red copper shielding sleeves. In order to avoid the damage of microwave energy to laboratory staff, the test device can be independently placed in a room (an electromagnetic shielding room) to realize the test in a man-machine separation state, and the test process can be observed by installing a monitoring system.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A microwave-assisted TBM double-hob linear cutting rock breaking test device is characterized by comprising a hob loading assembly, a microwave irradiation assembly and a rock sample moving and loading assembly; the hob loading assembly is used for carrying out TBM hob cutting on a rock sample and comprises two groups of parallel hobs; the microwave irradiation assembly is used for performing microwave fracturing on the rock sample; the rock sample moving and loading assembly is used for driving the rock sample to firstly undergo microwave fracturing through the microwave irradiation assembly, and then undergo TBM hob cutting through the hob loading assembly.
2. The microwave-assisted TBM double-hob linear cutting rock breaking test device according to claim 1, wherein the hob loading assembly comprises a vertical hydraulic cylinder I, a frame I, a force measuring device I, a hob head I, a hob I, a force measuring device II, a hob head II and a hob II;
the inner sides of two opposite side surfaces of the rack I are respectively provided with a vertical guide rail I, a vertical hydraulic cylinder I is arranged at the top of the rack I, the bottom of the vertical hydraulic cylinder I is connected with a movable cross beam I, and two ends of the movable cross beam I are respectively connected with sliding blocks of the vertical guide rails I at two sides; the force measuring device I and the force measuring device II are arranged at the bottom of the movable cross beam I; the hob head I and the hob head II are respectively arranged at the bottoms of the force measuring device I and the force measuring device II; and the hob I and the hob II are respectively arranged on the hob head I and the hob head II.
3. The microwave-assisted TBM double-hob linear cutting rock breaking test device according to claim 1, wherein the microwave irradiation component is single microwave irradiation and comprises a machine frame II, a vertical hydraulic cylinder II, a microwave generator I, a transmission waveguide I, a temperature measuring device and a microwave heater; vertical guide rails II are respectively arranged on the inner sides of two opposite side surfaces of the rack II; the vertical hydraulic cylinder II is arranged at the top of the frame II, the bottom of the vertical hydraulic cylinder II is connected with a movable cross beam II, and two ends of the movable cross beam II are respectively connected with sliding blocks of vertical guide rails II at two sides; the microwave generator I is arranged at the bottom of the movable cross beam II; the microwave input end and the microwave output end of the transmission waveguide I are respectively connected with the microwave generator I and the microwave heater; the temperature measuring device is arranged on the transmission waveguide I; the microwave generator I is connected with a microwave power supply through a cable.
4. The microwave-assisted TBM double-hob linear cutting rock breaking test device according to claim 3, wherein a microwave irradiation position of the microwave heating system on the rock sample is in the middle of two cutting tracks of the hob loading assembly on the rock sample.
5. The microwave-assisted TBM double-hob linear cutting rock breaking test device as claimed in claim 1, wherein the microwave irradiation component is double microwave irradiation and comprises a machine frame II, a vertical hydraulic cylinder II, a microwave generator I, a transmission waveguide I, a temperature measuring device, a microwave heater I, a microwave generator II, a transmission waveguide II and a microwave heater II; vertical guide rails II are respectively arranged on the inner sides of two opposite side surfaces of the rack II; the vertical hydraulic cylinder II is arranged at the top of the frame II, the bottom of the vertical hydraulic cylinder II is connected with a movable cross beam II, and two ends of the movable cross beam II are respectively connected with sliding blocks of vertical guide rails II at two sides; the microwave generator I and the microwave generator II are arranged at the bottom of the movable cross beam II; the microwave input end and the microwave output end of the transmission waveguide I are respectively connected with a microwave generator I and a microwave heater I; the microwave input end and the microwave output end of the transmission waveguide II are respectively connected with a microwave generator II and a microwave heater II; the temperature measuring device is arranged on the transmission waveguide I or the transmission waveguide II; the microwave generator I and the microwave generator II are respectively connected with a microwave power supply through cables.
6. The microwave-assisted TBM double-hob linear cutting rock breaking test device according to claim 5, wherein two microwave irradiation positions of the microwave irradiation assembly are respectively on two cutting tracks of the hob loading assembly on the rock sample.
7. The microwave-assisted TBM double-hob linear cutting rock breaking test device according to claim 5, wherein the movable cross beam II is provided with a track perpendicular to a cutting track, the track is provided with two sliding blocks, and the microwave generator I and the microwave generator II are respectively connected with the two sliding blocks.
8. The microwave-assisted TBM double-hob linear cutting rock breaking test device according to claim 1, wherein the rock sample moving and carrying assembly comprises a transverse rail, a transverse hydraulic cylinder and a rock bin containing a rock sample; the rock bin is arranged on a sliding block of the transverse track and connected with a transverse hydraulic cylinder, and can move along the transverse track under the driving of the transverse hydraulic cylinder; the transverse track passes through the hob loading assembly and the microwave irradiation assembly.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010608020.2A CN111811975A (en) | 2020-06-29 | 2020-06-29 | Microwave-assisted TBM double-hob linear cutting rock breaking test device |
| PCT/CN2021/079227 WO2022001153A1 (en) | 2020-06-29 | 2021-03-05 | Microwave-assisted tbm double-hob linear-cutting rock breaking test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010608020.2A CN111811975A (en) | 2020-06-29 | 2020-06-29 | Microwave-assisted TBM double-hob linear cutting rock breaking test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111811975A true CN111811975A (en) | 2020-10-23 |
Family
ID=72856612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010608020.2A Pending CN111811975A (en) | 2020-06-29 | 2020-06-29 | Microwave-assisted TBM double-hob linear cutting rock breaking test device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111811975A (en) |
| WO (1) | WO2022001153A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113063618A (en) * | 2021-05-13 | 2021-07-02 | 盾构及掘进技术国家重点实验室 | Microwave-assisted rotary rock breaking TBM tunneling test bed |
| WO2022001153A1 (en) * | 2020-06-29 | 2022-01-06 | 盾构及掘进技术国家重点实验室 | Microwave-assisted tbm double-hob linear-cutting rock breaking test device |
| CN115290752A (en) * | 2022-08-03 | 2022-11-04 | 东北大学 | Microwave parameter active adjustment rotary fracturing deep hard rock device and use method thereof |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114324045B (en) * | 2022-03-10 | 2022-06-14 | 中铁第六勘察设计院集团有限公司 | Device and method for judging diggeability of shield cutter to boulders and hard rock bulges in soft soil |
| CN114544412B (en) * | 2022-04-26 | 2022-07-15 | 矿冶科技集团有限公司 | Flexible confining pressure mechanical rock breaking test device |
| CN114878392B (en) * | 2022-05-27 | 2024-09-10 | 安徽理工大学 | Test device and test method for researching rock breaking of sandstone shaft hob |
| CN118566059B (en) * | 2024-08-01 | 2024-11-08 | 中铁十四局集团装备有限公司 | Microwave-assisted hob rock breaking test device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101446537A (en) * | 2008-11-10 | 2009-06-03 | 中南大学 | Adjustable multi-hob rock cutting fragmentation test means |
| CN101592533A (en) * | 2009-07-10 | 2009-12-02 | 沈阳重型机械集团有限责任公司 | Synchronous detection test device for multi-item parameters of linear TBM hobs |
| CN103226077A (en) * | 2013-03-18 | 2013-07-31 | 北京工业大学 | Mechanical rock breaking test platform |
| KR20170039799A (en) * | 2015-10-01 | 2017-04-12 | 현대건설주식회사 | Apparatus and method for evaluating wear and abrasion of slurry type TBM disc cutter |
| CN109506925A (en) * | 2019-01-26 | 2019-03-22 | 湘潭大学 | A kind of TBM hob sound loaded line cutting test platform |
| CN110108588A (en) * | 2019-05-22 | 2019-08-09 | 中南大学 | A kind of compound broken rock experimental provision of high-pressure water jet hobboing cutter multiple degrees of freedom |
| CN110501145A (en) * | 2019-07-03 | 2019-11-26 | 中国科学院武汉岩土力学研究所 | A kind of experimental system and test method of TBM driving auxiliary rock |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10539017B2 (en) * | 2017-03-10 | 2020-01-21 | The Robbins Company | Cutter housing with field-replaceable seats |
| CN109612716B (en) * | 2019-01-26 | 2020-09-18 | 湘潭大学 | TBM hobbing cutter dynamic and static loading linear cutting test bench |
| CN110333159B (en) * | 2019-07-12 | 2020-05-26 | 中铁隧道局集团有限公司 | Hob rock machine comprehensive experiment platform |
| CN210269128U (en) * | 2019-07-18 | 2020-04-07 | 天水红山试验机有限公司 | Ultra-high-speed rock crushing hob service life assessment test bed |
| CN210863178U (en) * | 2019-10-25 | 2020-06-26 | 中国科学院武汉岩土力学研究所 | Combined rock breaking comprehensive test bed |
| CN111811975A (en) * | 2020-06-29 | 2020-10-23 | 盾构及掘进技术国家重点实验室 | Microwave-assisted TBM double-hob linear cutting rock breaking test device |
-
2020
- 2020-06-29 CN CN202010608020.2A patent/CN111811975A/en active Pending
-
2021
- 2021-03-05 WO PCT/CN2021/079227 patent/WO2022001153A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101446537A (en) * | 2008-11-10 | 2009-06-03 | 中南大学 | Adjustable multi-hob rock cutting fragmentation test means |
| CN101592533A (en) * | 2009-07-10 | 2009-12-02 | 沈阳重型机械集团有限责任公司 | Synchronous detection test device for multi-item parameters of linear TBM hobs |
| CN103226077A (en) * | 2013-03-18 | 2013-07-31 | 北京工业大学 | Mechanical rock breaking test platform |
| KR20170039799A (en) * | 2015-10-01 | 2017-04-12 | 현대건설주식회사 | Apparatus and method for evaluating wear and abrasion of slurry type TBM disc cutter |
| CN109506925A (en) * | 2019-01-26 | 2019-03-22 | 湘潭大学 | A kind of TBM hob sound loaded line cutting test platform |
| CN110108588A (en) * | 2019-05-22 | 2019-08-09 | 中南大学 | A kind of compound broken rock experimental provision of high-pressure water jet hobboing cutter multiple degrees of freedom |
| CN110501145A (en) * | 2019-07-03 | 2019-11-26 | 中国科学院武汉岩土力学研究所 | A kind of experimental system and test method of TBM driving auxiliary rock |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022001153A1 (en) * | 2020-06-29 | 2022-01-06 | 盾构及掘进技术国家重点实验室 | Microwave-assisted tbm double-hob linear-cutting rock breaking test device |
| CN113063618A (en) * | 2021-05-13 | 2021-07-02 | 盾构及掘进技术国家重点实验室 | Microwave-assisted rotary rock breaking TBM tunneling test bed |
| WO2022236907A1 (en) * | 2021-05-13 | 2022-11-17 | 盾构及掘进技术国家重点实验室 | Tbm tunneling test bench for microwave-assisted rotary rock-breaking |
| CN115290752A (en) * | 2022-08-03 | 2022-11-04 | 东北大学 | Microwave parameter active adjustment rotary fracturing deep hard rock device and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022001153A1 (en) | 2022-01-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111811975A (en) | Microwave-assisted TBM double-hob linear cutting rock breaking test device | |
| CN111811974A (en) | Microwave-assisted TBM hob rock breaking test device | |
| CN113063618B (en) | Microwave-assisted rotary rock breaking TBM tunneling test bed | |
| Hartlieb et al. | Experimental study on microwave assisted hard rock cutting of granite | |
| WO2021212669A1 (en) | Horizontal water jet-mechanical joint rock-breaking experimental apparatus and method | |
| CN108678761B (en) | A kind of rock microwave fracturing experimental rig based on true triaxial load | |
| CN111076915B (en) | Horizontal straight line structure's shield TBM broken rock test platform | |
| CN101713719A (en) | Cutting test method for rock-cutting tool | |
| US20230194386A1 (en) | Tbm tunneling test bench for microwave-assisted rotary rock breaking | |
| CN111091747B (en) | TBM hob multifunctional test bed | |
| CN210863178U (en) | Combined rock breaking comprehensive test bed | |
| CN111157388A (en) | Test bed capable of simulating tool behaviors at each position of cutter head | |
| Carstens et al. | Rock cutting by laser | |
| Feng et al. | Development of high-power microwave mechanical integrated continuous mining device | |
| CN208456606U (en) | A kind of new pattern laser broken rock mode TBM | |
| CN217954182U (en) | Guide rail type laser microwave combined auxiliary TBM hob rock breaking test device | |
| CN221322399U (en) | Fracturing top plate device based on interaction of microwaves and water | |
| CN112539917A (en) | Experimental device and method for rock breaking by combining short pulse laser and continuous laser | |
| CN217819846U (en) | Mechanical arm type laser and microwave combined auxiliary rock breaking test device for TBM hob | |
| CN114776219B (en) | Advanced geological prediction method and device for tunnel | |
| Lin et al. | Optimization of Microwave Presplitting Iron Ore to Improve Mechanical Mining Efficiency | |
| CN117309660A (en) | Composite rock breaking test bed and test method for disc hob | |
| Lin et al. | Field test of high-power microwave-assisted mechanical excavation for deep hard iron ore | |
| CN214616513U (en) | Three-head microwave-assisted rock breaking hydraulic breaking hammer | |
| CN101607347B (en) | laser processing device and light guide device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201023 |
|
| RJ01 | Rejection of invention patent application after publication |