CN116593320A - Experimental system for acquiring shear strength parameters of rock and soil mass and application method thereof - Google Patents
Experimental system for acquiring shear strength parameters of rock and soil mass and application method thereof Download PDFInfo
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- CN116593320A CN116593320A CN202310017233.1A CN202310017233A CN116593320A CN 116593320 A CN116593320 A CN 116593320A CN 202310017233 A CN202310017233 A CN 202310017233A CN 116593320 A CN116593320 A CN 116593320A
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- 239000002689 soil Substances 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000011435 rock Substances 0.000 title claims description 6
- 238000006073 displacement reaction Methods 0.000 claims abstract description 33
- 238000010008 shearing Methods 0.000 claims abstract description 21
- 238000002474 experimental method Methods 0.000 claims abstract description 14
- 238000005096 rolling process Methods 0.000 claims abstract description 11
- 230000002159 abnormal effect Effects 0.000 claims description 8
- 238000012795 verification Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- 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
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- 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
- G01N3/06—Special adaptations of indicating or recording means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
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- 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 an experiment system for acquiring shear strength parameters of a rock-soil body and a use method thereof, comprising an experiment device, wherein the experiment device comprises a pull rod, a cross beam, a first bearing plate, a thrust rod, rolling shafts, a first dynamometer, a second dynamometer, a first jack, a second bearing plate, a displacement sensor and a shearing box; one side of the shear box is connected with a displacement sensor, and the other side of the shear box is connected with a first dynamometer, a thrust rod and a first jack and is connected with a pull rod through the first dynamometer, the thrust rod and the first jack; one end face of the second bearing plate is connected with the rolling shaft, and the other end face of the second bearing plate is connected with the second dynamometer and the second jack and is connected with the cross beam through the second dynamometer and the second jack; the dynamometer and the sensor are connected with a computer.
Description
Technical Field
The invention relates to the technical field of geological experiments, in particular to an experiment system for acquiring shear strength parameters of a rock-soil body and a use method thereof.
Background
The acquisition of shear strength parameters of a rock-soil body is an important work for geological investigation. The current method for obtaining the shear strength of the rock-soil body is to perform a direct shear shearing experiment, and experimental data are manually read, so that a plurality of displacement dial indicators and a plurality of pressure meter readings are required to be read. The experiment is continuously carried out, when an experimenter reads one numerical value, then reads another numerical value, and the numerical values read successively are not numerical values in the same state at the same time, so that the related indexes can not accurately reflect the deformation state of the experimental soil body; and after the experimental sample is taken in the field, the sample often deforms in the process of being manufactured into a standard sample in a transporting room, and the accuracy of experimental data is affected, so that the error of parameters obtained by the experiment is larger.
Therefore, the invention provides an experimental system for acquiring the shear strength parameters of a rock-soil body and a use method thereof.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the experimental system for acquiring the shear strength parameters of the rock-soil body and the application method thereof, which can improve the accuracy of acquiring the experimental data of the shear strength parameters of the rock-soil body, thereby reducing the error of the shear strength parameters obtained by the experiment.
The technical scheme of the invention is realized as follows:
the experimental system for acquiring the shear strength parameters of the rock-soil body comprises an experimental device, wherein the experimental device comprises a pull rod, a cross beam, a first bearing plate, a thrust rod, rolling shafts, a plurality of dynamometers, a plurality of jacks, a second bearing plate, a displacement sensor and a shearing box, the pull rod is fixed in the experimental soil body, the pull rod is connected with the cross beam (3), the shearing box is sleeved on the experimental soil body, one end face of the first bearing plate is in parallel and level with the experimental soil body, and the other end face of the first bearing plate is connected with a plurality of rolling shafts; the dynamometer comprises a first dynamometer and a second dynamometer, and the jack comprises a first jack and a second jack; one side of the shearing box is connected with a displacement sensor, and the other side of the shearing box is connected with a first dynamometer, a thrust rod and a first jack and is connected with a pull rod through the first dynamometer, the thrust rod and the first jack; one end face of the second bearing plate is connected with the rolling shaft, the other end face of the second bearing plate is connected with the second dynamometer and the second jack, and the second bearing plate is connected with the cross beam through the second dynamometer and the second jack; the first dynamometer, the second dynamometer and the displacement sensor are all connected with the central controller through data lines and connected with the computer through the central controller.
Preferably, the pull rod is connected with the cross beam through a pin.
Preferably, the pull rod is fixedly connected with a first jack; one end of the thrust rod is connected with the first jack, and the other end of the thrust rod is connected with the first dynamometer and one side of the shear box through the first dynamometer.
Preferably, a second jack is fixedly connected to the cross beam, and one end of the second jack is connected with the second dynamometer and is connected with the top of the second bearing plate through the second dynamometer.
In addition, the invention provides a use method of an experimental system for acquiring shear strength parameters of a rock-soil body, which comprises the following steps:
s1, selecting a required experimental field;
s2, excavating to an experimental depth, and manufacturing a model experimental soil body;
s3, mounting a pull rod and a cross beam on an experimental soil body, sleeving a shearing box, paving a plurality of rollers on the upper surface of a first bearing plate after paving the first bearing plate on the surface of the experimental soil body, and paving a second bearing plate on the rollers;
s4, mounting a second dynamometer and a second jack on the upper surface of the second bearing plate, wherein the stress axis of the second dynamometer is coincident with the stress axis of the second jack, and the stress axis is perpendicular to the second bearing plate;
s5, after a thrust rod, a first dynamometer and a first jack are arranged on one side of the shear box, a displacement sensor is arranged on the other side of the shear box, and a stress axis of the thrust rod, a stress axis of the first dynamometer and a stress axis of the first jack are overlapped and parallel to the horizontal section of the first bearing plate;
s6, connecting the first dynamometer, the second dynamometer and the displacement sensor into a central controller through a data line for verification, and carrying out the next step after the verification is passed;
s7, after the required pressure, namely the positive stress N, is applied to the second jack, namely the shearing stress F, is applied to the first jack, and meanwhile, the pressure and the thrust are respectively measured through the second dynamometer and the first dynamometer, and the displacement of the displacement sensor is read;
s8, displaying images through a computer, observing whether related data are abnormal in real time, and checking in time if the related data are abnormal; and storing the complete experimental data after the experiment is finished.
Compared with the prior art, the invention has the following advantages.
By adopting the scheme, the shear stress is tested by using the experimental device, the shear strength parameter is calculated through k=tan (phi), meanwhile, the on-site automatic acquisition is carried out on the dynamometer and the displacement sensor, whether related data are abnormal or not can be observed in real time through the computer display image, so that the accuracy of experimental data for acquiring the rock-soil body shear strength parameter is improved, and the error of the shear strength parameter obtained through the experiment is reduced.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of an experimental apparatus of an experimental system for obtaining shear strength parameters of a rock-soil body according to the present invention;
FIG. 2 is a graph of data from an experimental system according to an embodiment of the invention;
FIG. 3 is a graph showing a second example of a data graph of an experimental system according to the present invention;
the attached drawings are identified: 1-experiment soil mass; 2-a pull rod; 3-a cross beam; 4-a first bearing plate; 5-a thrust rod; 6-rolling shafts; 7-a first load cell; 8-a first jack; 9-a second bearing plate; 10-a displacement sensor; 11-a second load cell; 12-a second jack; 13-shear box.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The invention provides an experimental system for acquiring shear strength parameters of a rock-soil body, which is shown in fig. 1 and comprises an experimental device, wherein the experimental device comprises a pull rod 2, a cross beam 3, a first bearing plate 4, a thrust rod 5, a rolling shaft 6, a plurality of dynamometers, a plurality of jacks, a second bearing plate 9, a displacement sensor 10 and a shearing box 13, wherein the pull rod 2 is fixed in the experimental soil body 1, the pull rod 2 is connected with the cross beam 3, the shearing box 13 is sleeved on the experimental soil body 1, one end face of the first bearing plate 4 is flush and propped against the experimental soil body 1, and the other end face of the first bearing plate 4 is connected with a plurality of rolling shafts 6; the dynamometer comprises a first dynamometer 7 and a second dynamometer 11, and the jack comprises a first jack 8 and a second jack 12; one side of the shear box 13 is connected with a displacement sensor 10, and the other side of the shear box 13 is connected with a first dynamometer 7, a thrust rod 5 and a first jack 8 and is connected with the pull rod 2 through the first dynamometer 7, the thrust rod 5 and the first jack 8; one end face of the second bearing plate 9 is connected with the roller 6, the other end face of the second bearing plate 9 is connected with the second dynamometer 11 and the second jack 12, and is connected with the cross beam 3 through the second dynamometer 11 and the second jack 12; the first dynamometer 7, the second dynamometer 11 and the displacement sensor 10 are all connected with a central controller through data wires and connected with a computer through the central controller.
In this embodiment, the tie rod 2 is connected to the cross beam 3 by a pin. The pull rod 2 and the cross beam 3 have a counterforce effect, 4 pull rods 2 are required to be installed in practical application, and the counterforce provided by the pull rod 2 is greater than 2 times of the maximum pressure required to be applied by the second jack 12.
In this embodiment, as shown in fig. 1, a first jack 8 is fixedly connected to the pull rod 2; one end of the thrust rod 5 is connected with the first jack 8, and the other end of the thrust rod 5 is connected with the first dynamometer 7 and is connected with one side of the shear box 13 through the first dynamometer 7.
In this embodiment, as shown in fig. 1, a second jack 12 is fixedly connected to the cross beam 3, and one end of the second jack 12 is connected to the second load cell 11 and is connected to the top of the second bearing plate 9 through the second load cell 11. By installing the first jack 8 and the second jack 12 on the pull rod 2 and the cross beam 3 respectively, the pull rod 2 and the cross beam 3 provide counter force for the purpose, the second jack 12 provides pressure, namely positive stress N, to be transmitted to the second dynamometer 11, and as the stress axis of the second dynamometer 11 coincides with the stress axis of the second jack 12, the stress axis is vertical to the second bearing plate 9, the positive stress N is firstly transmitted to the second bearing plate 9 from the second dynamometer 11, then transmitted to the rolling shaft 6 from the second bearing plate 9, and then transmitted to the first bearing plate 4 from the rolling shaft 6 and acted on the experimental soil body 1; the first jack 8 provides thrust force, namely shear stress F, and the thrust force is transmitted to the thrust rod 5 and then transmitted to the first dynamometer 7 to act on the shear box 13 due to the fact that the stress axis of the thrust rod 5, the stress axis of the first dynamometer 7 and the stress axis of the first jack 8 are overlapped and parallel to the horizontal section of the first bearing plate 4, and meanwhile the real-time pressure and the thrust force are measured through the second dynamometer 11 and the first dynamometer 7 respectively, and the displacement of the displacement sensor is read.
In addition, the invention also provides a using method of the experimental system for acquiring the shear strength parameters of the rock-soil body, which comprises the following steps:
s1, selecting a required experimental field;
s2, excavating to an experimental depth, and manufacturing a model experimental soil body 1;
s3, mounting a pull rod 2 and a cross beam 3 on the experimental soil body 1, sleeving a shearing box 13, paving a plurality of rollers 6 on the upper surface of the first bearing plate 4 after paving the first bearing plate 4 on the surface of the experimental soil body 1, paving a second bearing plate 9 on the rollers 6, and enabling the area of the bottom surface of the first bearing plate 4 to be the same as the area of an opening of the shearing box 13;
s4, mounting a second dynamometer 11 and a second jack 12 on the upper surface of the second bearing plate 9, wherein the stress axis of the second dynamometer 11 is coincident with the stress axis of the second jack 12, and the stress axis is perpendicular to the second bearing plate 9;
s5, after a thrust rod 5, a first dynamometer 7 and a first jack 8 are arranged on one side of a shear box 13, a displacement sensor 10 is arranged on the other side of the shear box 13, and a stress axis of the thrust rod 5, a stress axis of the first dynamometer 7 and a stress axis of the first jack 8 are overlapped and parallel to a horizontal section of the first bearing plate 4;
s6, connecting the first dynamometer 7, the second dynamometer 11 and the displacement sensor 10 to a central controller through data lines for verification, and carrying out the next step after the verification is passed;
s7, after the required pressure, namely the positive stress N, is applied to the second jack 12, the thrust, namely the shear stress F, is applied to the first jack 8, and meanwhile, the pressure and the thrust are respectively measured through the second dynamometer 11 and the first dynamometer 7, and the displacement of the displacement sensor is read;
s8, displaying images through a computer, observing whether related data are abnormal in real time, and checking in time if the related data are abnormal; and storing the complete experimental data after the experiment is finished.
In this embodiment, as shown in fig. 2, in a graph formed by measuring data on an experimental site, s1 and s2 are 2 displacement time curves, F is a thrust force, that is, a shear stress magnitude time curve, and N is a positive stress magnitude time curve, where as known from s1 curves and F curves in the graph, when a value of the first dynamometer, that is, the thrust force F, reaches a certain extremum, the displacement curve fed back by the displacement sensor changes, which indicates that the experimental soil is sheared and damaged, and there is a phenomenon of rapid movement, and at this time, the magnitude of the thrust force, that is, the shear stress, is the shear strength extremum of the experimental soil under the action of the positive stress N. And comparing the s1 curve with the s2 curve in the graph, wherein the displacement of the s2 curve after the soil body is damaged is not increased, and the displacement is not consistent with the experimental phenomenon, so that the measured s2 curve can be judged to be abnormal data, and other factors such as poor installation contact and sensor problems can be judged to be caused, and after the problems are found, the data can be verified and re-measured in real time in the field.
In this embodiment, according to the graph shown in fig. 2, the relationship between the magnitude of the extreme value of the shear strength and the magnitude of the positive stress is utilized, the positive stress is taken as the axis of abscissa, the shear stress is taken as the axis of ordinate, the experimental soil strength failure graph shown in fig. 3 is established, the magnitude of the positive stress is taken as the center of a circle on the axis of abscissa, the magnitude of the shear stress is taken as the radius to be a semicircle, the tangent lines of the circles are connected by straight lines, the value of the intercept magnitude of the tangent lines on the longitudinal axis is the same as the cohesive force c, and the included angle between the tangent lines and the transverse axis is the internal friction angle. The internal friction angle is calculated by reading the slope of the curve and the intercept of the vertical axis, using k=tan (Φ), and the cohesion is the value of the intercept of the tangent line at the vertical axis.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (5)
1. An experimental system for obtaining shear strength parameters of a rock-soil body, which is characterized in that: the experimental device comprises a pull rod (2), a cross beam (3), a first bearing plate (4), a thrust rod (5), rollers (6), a plurality of dynamometers, a plurality of jacks, a second bearing plate (9), a displacement sensor (10) and a shearing box (13), wherein the pull rod (2) is fixed in an experimental soil body (1), the pull rod (2) is connected with the cross beam (3), the shearing box (13) is sleeved on the experimental soil body (1), one end face of the first bearing plate (4) is flush against the experimental soil body (1), and a plurality of rollers (6) are connected to the other end face of the first bearing plate (4);
the dynamometer comprises a first dynamometer (7) and a second dynamometer (11), and the jack comprises a first jack (8) and a second jack (12); one side of the shearing box (13) is connected with a displacement sensor (10), and the other side of the shearing box (13) is connected with a first dynamometer (7), a thrust rod (5) and a first jack (8) and is connected with the pull rod (2) through the first dynamometer (7), the thrust rod (5) and the first jack (8); one end face of the second bearing plate (9) is connected with the rolling shaft (6), the other end face of the second bearing plate (9) is connected with the second dynamometer (11) and the second jack (12), and is connected with the cross beam (3) through the second dynamometer (11) and the second jack (12);
the first dynamometer (7), the second dynamometer (11) and the displacement sensor (10) are all connected with the central controller through data lines and connected with a computer through the central controller.
2. An experimental system for obtaining shear strength parameters of a rock and soil mass according to claim 1, wherein: the pull rod (2) is connected with the cross beam (3) through a pin.
3. An experimental system for obtaining shear strength parameters of a rock and soil mass according to claim 2, wherein: a first jack (8) is fixedly connected to the pull rod (2); one end of the thrust rod (5) is connected with the first jack (8), and the other end of the thrust rod (5) is connected with the first dynamometer (7) and is connected with one side of the shearing box (13) through the first dynamometer (7).
4. The experimental system for obtaining the shear strength parameters of the rock and soil body according to claim 3, wherein a second jack (12) is fixedly connected to the cross beam (3), one end of the second jack (12) is connected with a second dynamometer (11), and the second jack is connected with the top of the second bearing plate (9) through the second dynamometer (11).
5. A method of using the experimental system for obtaining shear strength parameters of a rock and soil mass according to any one of claims 1-4, comprising the steps of:
s1, selecting a required experimental field;
s2, excavating to an experimental depth, and manufacturing a model experimental soil body (1);
s3, mounting a pull rod (2) and a cross beam (3) on the experimental soil body (1) and sleeving a shearing box (13), after the first bearing plate (4) is paved on the surface of the experimental soil body (1), paving a plurality of rollers (6) on the upper surface of the first bearing plate (4), and paving a second bearing plate (9) on the rollers (6);
s4, mounting a second dynamometer (11) and a second jack (12) on the upper surface of the second bearing plate (9), wherein the stress axis of the second dynamometer (11) coincides with the stress axis of the second jack (12), and the stress axis is perpendicular to the second bearing plate (9);
s5, after a thrust rod (5), a first dynamometer (7) and a first jack (8) are arranged on one side of a shearing box (13), a displacement sensor (10) is arranged on the other side of the shearing box (13), and a stress axis of the thrust rod (5), a stress axis of the first dynamometer (7) and a stress axis of the first jack (8) are overlapped and parallel to the horizontal section of the first bearing plate (4);
s6, connecting the first dynamometer (7), the second dynamometer (11) and the displacement sensor (10) to a central controller through data lines for verification, and carrying out the next step after the verification is passed;
s7, after the required pressure, namely the normal stress N, is applied to the second jack (12), the thrust, namely the shearing stress F, is applied to the first jack (8), and meanwhile, the pressure and the thrust are respectively measured through the second dynamometer (11) and the first dynamometer (7), and the displacement of the displacement sensor is read;
s8, displaying images through a computer, observing whether related data are abnormal in real time, and checking in time if the related data are abnormal; and storing the complete experimental data after the experiment is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310017233.1A CN116593320A (en) | 2023-01-06 | 2023-01-06 | Experimental system for acquiring shear strength parameters of rock and soil mass and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310017233.1A CN116593320A (en) | 2023-01-06 | 2023-01-06 | Experimental system for acquiring shear strength parameters of rock and soil mass and application method thereof |
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| Publication Number | Publication Date |
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| CN116593320A true CN116593320A (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310017233.1A Pending CN116593320A (en) | 2023-01-06 | 2023-01-06 | Experimental system for acquiring shear strength parameters of rock and soil mass and application method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558096A (en) * | 2013-11-04 | 2014-02-05 | 中国地质科学院地质力学研究所 | Rock and earth mass in-situ direct shear test device with automatic data acquisition system and rock and earth mass in-situ direct shear test method |
| CN103884607A (en) * | 2014-03-28 | 2014-06-25 | 黄斌 | On-site large-scale coarse-grained soil direct shear testing equipment |
| CN104634669A (en) * | 2015-03-12 | 2015-05-20 | 太原理工大学 | Detection method for soil shear strength index |
| CN106124341A (en) * | 2016-06-20 | 2016-11-16 | 三峡大学 | The field direct shear test sample preparation of a kind of Tu Yan interface and assay device |
| CN205749159U (en) * | 2016-06-22 | 2016-11-30 | 三峡大学 | Simple soil in-situ direct shear apparatus |
| US20170284911A1 (en) * | 2016-03-31 | 2017-10-05 | Powerchina Huadong Engineering Corporation Limited | Integrated style shear apparatus for rock structural plane and a shear experimental method for rock structural plane |
| CN113340746A (en) * | 2021-03-17 | 2021-09-03 | 中国石油大学(华东) | Calculation method of hydrate deposit shear strength |
| CN115270407A (en) * | 2022-06-23 | 2022-11-01 | 中国电建集团成都勘测设计研究院有限公司 | Shear strength parameter calculation method and evaluation method thereof |
-
2023
- 2023-01-06 CN CN202310017233.1A patent/CN116593320A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558096A (en) * | 2013-11-04 | 2014-02-05 | 中国地质科学院地质力学研究所 | Rock and earth mass in-situ direct shear test device with automatic data acquisition system and rock and earth mass in-situ direct shear test method |
| CN103884607A (en) * | 2014-03-28 | 2014-06-25 | 黄斌 | On-site large-scale coarse-grained soil direct shear testing equipment |
| CN104634669A (en) * | 2015-03-12 | 2015-05-20 | 太原理工大学 | Detection method for soil shear strength index |
| US20170284911A1 (en) * | 2016-03-31 | 2017-10-05 | Powerchina Huadong Engineering Corporation Limited | Integrated style shear apparatus for rock structural plane and a shear experimental method for rock structural plane |
| CN106124341A (en) * | 2016-06-20 | 2016-11-16 | 三峡大学 | The field direct shear test sample preparation of a kind of Tu Yan interface and assay device |
| CN205749159U (en) * | 2016-06-22 | 2016-11-30 | 三峡大学 | Simple soil in-situ direct shear apparatus |
| CN113340746A (en) * | 2021-03-17 | 2021-09-03 | 中国石油大学(华东) | Calculation method of hydrate deposit shear strength |
| CN115270407A (en) * | 2022-06-23 | 2022-11-01 | 中国电建集团成都勘测设计研究院有限公司 | Shear strength parameter calculation method and evaluation method thereof |
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