CN114739359A - Automatic monitoring device for soil body settlement and installation method thereof - Google Patents
Automatic monitoring device for soil body settlement and installation method thereof Download PDFInfo
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- CN114739359A CN114739359A CN202210420146.6A CN202210420146A CN114739359A CN 114739359 A CN114739359 A CN 114739359A CN 202210420146 A CN202210420146 A CN 202210420146A CN 114739359 A CN114739359 A CN 114739359A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
- G01C5/04—Hydrostatic levelling, i.e. by flexibly interconnected liquid containers at separated points
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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
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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Abstract
The invention relates to the technical field of soil body settlement monitoring, and discloses an automatic soil body settlement monitoring device and an installation method thereof, wherein the monitoring device comprises an outer sleeve which is vertically embedded at a preset depth position in soil body; the inner sedimentation pipe is vertically inserted into the outer sleeve, the bottom of the inner sedimentation pipe is arranged at a preset depth position, and the top of the inner sedimentation pipe protrudes upwards out of the top of the outer sleeve; the static force level gauge is arranged at the top of the inner sedimentation pipe; the protective cover is fixedly connected to the top of the outer sleeve, the protective cover and the outer sleeve form a closed space, and the inner sedimentation pipe and the static level gauge are both positioned in the closed space; and the hydrostatic level acquisition box is connected with the hydrostatic level. According to the invention, the sedimentation displacement of the soil body is transmitted through the rigid body of the inner sedimentation pipe, the embedding depth of the rigid body can be customized according to the monitoring requirement, the problem of inaccurate embedding of the traditional layered sedimentation monitoring depth is solved, and the automatic monitoring of the layered sedimentation change is realized through the static level gauge.
Description
Technical Field
The invention relates to the technical field of soil body settlement monitoring, in particular to an automatic soil body settlement monitoring device and an installation method thereof.
Background
With the development of cities, subway construction and underground pipeline laying enter a high-speed development stage, road surface collapse accidents frequently occur due to underground engineering construction, and the road collapse accidents particularly tend to be high in large cities. The monitoring and early warning of the underground engineering construction become a difficult problem to be solved urgently, the deep soil body settlement caused by the tunnel and the underground engineering construction is monitored and early warned in time, the deformation characteristics and the deformation trend of the deep soil body are monitored in time, and the method has a positive effect on preventing the ground settlement and the ground collapse.
At present, the current soil body subsides and generally adopts the layered settlement appearance to monitor, need bury the guiding tube underground at the monitoring point position, subside the magnetic ring, regularly uses magnetism layered settlement appearance to carry out manual operation, reading, record survey value, and is inefficient, wastes time and energy, and observes the mistake easily, and measurement accuracy is low, and data need artifical record to be filed, can not satisfy automatic monitoring demand. In addition, the settlement magnetic ring is difficult to accurately arrange at a preset depth position in the installation or use process, and the accuracy of monitoring data is influenced. For example, when the settlement magnetic ring is installed, the settlement pipe sleeved with the settlement magnetic ring is placed into a drill hole, the settlement magnetic ring is fixed on the settlement pipe through a paper thread, when the paper thread breaks when meeting water in the drill hole, the anchoring iron sheet of the settlement magnetic ring is bounced off and embedded into a soil body, but in the drill hole with a higher underground water level, the settlement magnetic ring is soaked in water when not arranged at a designed position, and the paper thread breaks when meeting water in advance, so that the settlement magnetic ring is difficult to accurately arrange at the designed position. And the layered settlement meter is often required to repeatedly lift and lower the settling pipe in the construction process, and finally the tail end of the settling pipe can be smoothly conveyed to the bottom of the drill hole through the drill hole. In the process that the sedimentation pipe is repeatedly lifted and lowered, the friction between the sedimentation magnetic ring and the soil body around the drill hole does not synchronously rise and fall along with the sedimentation pipe, so that the sedimentation magnetic ring is not at the preset depth when the tail end of the sedimentation pipe reaches the bottom of the drill hole.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an automatic monitoring device for soil body settlement and an installation method thereof, so as to solve the problems that the monitoring of soil body settlement by using a settlement magnetic ring in the prior art cannot meet the requirement of automatic monitoring, and the settlement magnetic ring is difficult to be accurately arranged at a preset depth position when being buried, which affects the accuracy of monitoring data.
In order to achieve the purpose, the invention adopts the following technical scheme:
one aspect of the present invention provides an automatic monitoring device for soil settlement, comprising:
the inner part of the outer sleeve is hollow, and the outer sleeve is vertically embedded at a preset depth position in the soil body;
the inner sedimentation pipe is vertically inserted into the outer sleeve, the bottom of the inner sedimentation pipe is arranged at the preset depth position, and the top of the inner sedimentation pipe protrudes upwards out of the top of the outer sleeve;
the hydrostatic level is arranged at the top of the inner sedimentation pipe;
the protective cover is fixedly connected to the top of the outer sleeve, the protective cover and the outer sleeve form a closed space, and the inner sedimentation tube and the hydrostatic level are both positioned in the closed space;
the hydrostatic level collection box is connected with the hydrostatic level.
Preferably, the top of outer tube is provided with the roof, be provided with on the roof and supply interior sedimentation pipe inserted's through-hole, the safety cover lid is established on the roof.
Preferably, a leveling bubble is disposed on the top plate.
Preferably, the inner settling tube is arranged coaxially with the outer sleeve.
Preferably, the inner diameter of the outer sleeve is 10mm larger than the outer diameter of the inner settling tube.
Preferably, the inner wall of the outer sleeve and the outer wall of the inner settling tube are both coated with lubricating oil.
Preferably, the distance between the top of the inner settling tube and the top of the outer jacket tube is greater than 50 cm.
Preferably, a vent pipe, a liquid through pipe and a communication cable are connected between the hydrostatic level and the hydrostatic level collection box.
Another aspect of the present invention provides an installation method of the soil body settlement automatic monitoring device, including the following steps:
step S1, setting a preset depth of layered settlement according to the monitoring requirement, and determining the lengths of the outer sleeve and the inner settling tube according to the preset depth;
step S2, fixing a top plate on the top of the outer sleeve, and distributing leveling bubbles on the top plate;
step S3, fixing the static water level gauge on the top of the inner sedimentation pipe;
step S4, drilling a hole at a position where layered settlement is to be monitored, placing an outer sleeve in the hole to the position of the preset depth, and adjusting by using leveling bubbles to enable the outer sleeve to be vertical; fine sand is filled between the outer wall of the outer sleeve and the wall of the drilled hole;
step S5, inserting the inner sedimentation tube into the outer sleeve, wherein the bottom of the inner sedimentation tube is arranged at the preset depth position and is connected with the hydrostatic level and the hydrostatic level collection box;
and step S6, installing a protective cover, and placing the hydrostatic level and the inner sedimentation pipe in a closed space formed by the protective cover and the outer sleeve.
Preferably, the method further comprises a step S7 of arranging a plurality of soil body sedimentation automatic monitoring devices on the section to be monitored at intervals;
and S8, communicating the hydrostatic levels in the soil body settlement automatic monitoring devices, and connecting the hydrostatic levels to the same hydrostatic level collection box.
Compared with the prior art, the automatic monitoring device for soil settlement and the installation method thereof have the advantages that:
according to the automatic soil settlement monitoring device and the installation method thereof disclosed by the embodiment of the invention, a closed space is formed by the outer sleeve and the protective cover, and the inner settlement pipe and the hydrostatic level are both placed in the closed space. When the deep soil body subsides, outer tube and safety cover receive peripheral soil body extrusion effect and frictional action and can not move down, and interior sedimentation pipe can freely subside in this enclosure. On one hand, the displacement change monitoring of the soil body at the deep underground part is realized by transmitting the settlement displacement of the soil body through the rigid body of the inner settlement pipe, the burying depth of the rigid body can be customized according to the monitoring requirement, and the problem that the burying depth of the traditional layered settlement monitoring is inaccurate is solved; on the other hand, lay the hydrostatic level at the top of interior sedimentation pipe, the change of layered settlement carries out automated monitoring through the hydrostatic level, subside the deep soil body and transmit to the top layer through the rigid body, realize the automatic monitoring of top layer settlement through the hydrostatic level, thereby realize the automatic collection of layered settlement data, realize the automatic monitoring to the soil body subsides, need not regularly to carry out manual operation, the reading, the record survey value, and the efficiency is improved, time saving and labor saving, and the accuracy of improvement data record, the monitoring precision is improved.
Drawings
Fig. 1 is a schematic structural diagram of an automatic monitoring device for soil settlement according to an embodiment of the present invention;
FIG. 2 is a schematic view of the connection between the outer sleeve and the top plate according to the embodiment of the present invention;
fig. 3 is a schematic view of the connection of the inner settling tube to a hydrostatic level in an embodiment of the invention;
FIG. 4 is a schematic diagram of a plurality of soil settlement automated monitoring devices according to an embodiment of the present invention;
in the figure, 100, an automatic monitoring device for soil body settlement; 1. an outer sleeve; 2. an inner settling tube; 3. a hydrostatic level; 4. a protective cover; 5. a top plate; 6. leveling air bubbles; 7. a breather pipe; 8. a liquid pipe is communicated; 9. a communication cable line; 10. static water level collection box.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1-4, an automatic monitoring device for soil settlement according to an embodiment of the present invention includes an outer sleeve 1, an inner settling pipe 2, a hydrostatic level 3, a protective cover 4, and a hydrostatic level collection box 10, wherein the outer sleeve 1 is hollow, and the outer sleeve 1 is vertically buried in the soil at a predetermined depth; the inner settling tube 2 is vertically inserted into the outer sleeve 1, the bottom of the inner settling tube 2 is arranged at the preset depth position, the top of the inner settling tube 2 protrudes upwards out of the top of the outer sleeve 1, and both the inner settling tube 2 and the outer sleeve 1 are steel tubes; the hydrostatic level 3 is arranged at the top of the inner settling tube 2 and can synchronously move downwards along with the inner settling tube 2; the protective cover 4 is fixedly connected to the top of the outer sleeve 1, the protective cover 4 and the outer sleeve 1 form a closed space, and the inner sedimentation tube 2 and the hydrostatic level 3 are both positioned in the closed space; the hydrostatic level gathering box 10 is connected with the hydrostatic level 3 to gather monitoring data of the hydrostatic level 3.
The invention forms a closed space by the outer sleeve 1 and the protective cover 4, and the inner sedimentation tube 2 and the static level 3 are both arranged in the closed space. When the deep soil body subsides, outer tube 1 and safety cover 4 receive peripheral soil body extrusion and friction and can not move down, and outer tube 1 and safety cover 4 provide an enclosure space for interior sedimentation pipe 2, play the guard action to interior sedimentation pipe 2, and can avoid interior sedimentation pipe 2 to receive the extrusion of surrounding soil body, make interior sedimentation pipe 2 can freely subside along with the soil body subsides in this enclosure space. On one hand, the displacement change monitoring of the soil body at the deep underground is realized by transmitting the soil body settlement displacement through the rigid body of the inner settling pipe 2, the rigid body burying depth can be customized according to the monitoring requirement, and the problem of inaccurate burying of the traditional layered settlement monitoring depth is solved; on the other hand, lay hydrostatic level 3 at the top of interior sedimentation pipe 2, the change of layered settlement carries out automated monitoring through hydrostatic level 3, subside the deep soil body and transmit to the top layer through the rigid body, realize the automatic monitoring of top layer settlement through hydrostatic level 3, thereby realize the automatic acquisition of layered settlement data, the realization is to the automated monitoring of soil body settlement, need not regularly to carry out manual operation, the reading, the record survey value, and efficiency is improved, time saving and labor saving, and the accuracy of improvement data record, and the monitoring precision is improved.
In this embodiment, a top plate 5 is disposed on the top of the outer sleeve 1, a through hole for inserting the inner settling tube 2 is disposed on the top plate 5, and the top plate 5 is covered with the protective cover 4. Inside and the inside intercommunication of outer tube 1 of safety cover 4, roof 5 and outer tube 1 constitute a whole shell, all arrange the inside of this shell in hydrostatic level 3 and interior sedimentation pipe 2, and the distance between the top of outer tube 1 and the top of interior sedimentation pipe 2 is the biggest sedimentation distance. In this embodiment, the distance between the top of the inner settling tube 2 and the top of the outer jacket tube 1 is greater than 50 cm. Further, the size of the top plate 5 is larger than the outer diameter of the outer sleeve 1. Further, in order to fix the protection cover 4, the top plate 5 may have a square shape, the protection cover 4 may have a rectangular parallelepiped shape with an open bottom, and the top plate 5 may serve as a bottom plate of the protection cover 4.
Further, in the present embodiment, the top plate 5 is provided with a leveling bubble 6, and whether the outer tube 1 is vertically lowered into the soil is determined by the leveling bubble 6.
In this embodiment, the inner settling tube 2 and the outer sleeve 1 are coaxially arranged, so that the inner settling tube 2 can move vertically downwards. Further, the inner diameter of the outer sleeve 1 is 10mm larger than the outer diameter of the inner settling tube 2, for example, the inner diameter of the outer sleeve 1 may be about 70mm, and the outer diameter of the inner settling tube 2 may be about 60 mm.
In order to ensure the free settling of the inner settling tube 2, in this embodiment, the inner wall of the outer sleeve 1 and the outer wall of the inner settling tube 2 are both coated with lubricating oil, so as to reduce the friction force between the outer sleeve 1 and the inner settling tube 2 when settling.
In this embodiment, a vent pipe 7, a liquid through pipe 8 and a communication cable 9 are connected between the hydrostatic level 3 and the hydrostatic level collection box 10. A liquid storage tank is arranged in the static level acquisition tank 10, the static level 3 is connected with the liquid storage tank through a liquid through pipe 8, liquid in the liquid storage tank can be transmitted to the static level 3 through the liquid through pipe 8, and the settlement displacement of the static level 3 is reflected through the liquid level change in the static level 3 so as to reflect the settlement displacement of a soil body; the static level collecting box 10 is also provided with a vent valve, the static level 3 is connected to the vent valve through a vent tank, and the pressure balance in the static level 3 is kept by ventilating the static level 3; still be provided with data acquisition module in the hydrostatic level collection box 10, hydrostatic level 3 is connected to data acquisition module through communication cable line 9, gathers hydrostatic level 3's monitoring data through data acquisition module. The data acquisition module can also be in communication connection with external terminal equipment so as to observe or process the monitoring data.
Further, the outer peripheral sides of the vent pipe 7, the liquid through pipe 8 and the communication cable 9 are coated with PVC sleeves.
When carrying out the whole monitoring to a section in the engineering construction, can be at the automatic monitoring devices 100 of interval arrangement a plurality of soil body subsidence on waiting to monitor the section, 3 intercommunications of the hydrostatic level in each soil body subsidence automatic monitoring devices 100, and connect each hydrostatic level 3 at same hydrostatic level vasculum 10, specifically be with the breather pipe 7 intercommunication of each hydrostatic level 3, liquid pipe 8 intercommunication, communication cable line 9 intercommunication, a hydrostatic level vasculum 10 is shared to each hydrostatic level 3, gather the monitoring data of each hydrostatic level 3 through this hydrostatic level vasculum 10, realize the whole automatic data acquisition of a monitoring section, and is simple and fast, and is convenient and efficient.
The installation method of the automatic soil settlement monitoring device provided by the embodiment of the invention comprises the following steps:
step S1, setting a preset depth of layered settlement according to the monitoring requirement, and determining the lengths of the outer sleeve 1 and the inner settlement pipe 2 according to the preset depth, wherein the preset depth is the distance from the bottom of the outer sleeve 1 to the ground, and the preset depth is equal to the sum of the length of the outer sleeve 1, the height of the protective cover 4 and the distance from the top of the protective cover 4 to the ground; the distance between the top of the protective cover 4 and the ground is 20 cm-30 cm, so that the embedded monitoring device does not interfere with ground parking, ground construction and the like; in order to ensure a certain settling space, the length of the inner settling tube 2 is more than 50cm larger than that of the outer sleeve 1;
step S2, fixing a top plate 5 at the top of the outer sleeve 1, distributing leveling bubbles 6 on the top plate 5, and conveniently judging whether the outer sleeve 1 is vertically placed into the soil body or not through the leveling bubbles 6; wherein, the outer sleeve 1 and the top plate 5 can be welded and fixed, and the top plate 5 is welded on the peripheral edge of the top of the outer sleeve 1;
step S3, fixing the hydrostatic level 3 on the top of the inner settling tube 2, wherein the hydrostatic level 3 and the inner settling tube 2 can be welded and fixed;
step S4, drilling a hole at a position where layered settlement is to be monitored, wherein the hole diameter can be set to be 90mm, placing the outer sleeve 1 in the hole to the position of the preset depth, and adjusting by using a leveling bubble 6 to enable the outer sleeve 1 to be vertical; fine sand is filled between the outer wall of the outer sleeve 1 and the wall of the drilled hole;
step S5, inserting the inner sedimentation tube 2 into the outer sleeve 1, placing the bottom of the inner sedimentation tube 2 at the preset depth position, and connecting the hydrostatic level 3 with the hydrostatic level collection box 10;
step S6, the protective cover 4 is installed, and the hydrostatic level 3 and the inner sedimentation tube 2 are placed in the closed space formed by the protective cover 4 and the outer sleeve 1.
When the deep soil body is settled, the protective cover 4 and the outer sleeve 1 are basically not settled because the protective cover 4 and the outer sleeve 1 are extruded and rubbed by the surrounding soil body; and because interior sedimentation pipe 2 is located the enclosure space that safety cover 4 and outer tube 1 constitute, can not receive soil body extrusion, interior sedimentation pipe 2 can freely subside along with the deep soil body subsides in the enclosure space, and when interior sedimentation pipe 2 subsided, hydrostatic level 3 sinks in step, gathers hydrostatic level 3's data through hydrostatic level collection box 10, obtains the settlement displacement of interior sedimentation pipe 2 to obtain the soil body and subside the displacement, swift and effective.
Further, step S2 includes coating the inner wall of the outer sleeve 1 with lubricating oil; step S3 further includes coating lubricating oil on the outer wall of the inner settling tube 2 to reduce friction between the inner settling tube 2 and the outer sleeve 1, so that the settling displacement of the inner settling tube 2 is closer to the deep soil settling displacement.
In this embodiment, the static level 3 is connected with the vent pipe 7, the liquid pipe 8 and the communication cable 9, and the vent pipe 7, the liquid pipe 8 and the communication cable 9 are arranged in the same PVC sleeve.
In this embodiment, after step S6, step S7 is further included, where a plurality of soil body settlement automatic monitoring devices 100 are arranged on the section to be monitored at intervals; step S8, the hydrostatic levels 3 in the automatic soil settlement monitoring devices 100 are communicated, and the hydrostatic levels 3 are connected to the same hydrostatic level collecting box 10, so that the whole automatic data collection of a monitoring section is realized, and the device is simple, quick, convenient and efficient. A plurality of soil body subside automatic monitoring devices and construct and form the monitoring array, can realize that a subway undercut is under construction, underground works is under construction at a sectional whole monitoring through the monitoring array. In step S8, sequentially connecting the liquid passing tube 8 of each hydrostatic level 3 to the adjacent hydrostatic level 3, and after each hydrostatic level 3 is communicated, connecting the liquid passing tube 8 of the hydrostatic level 3 adjacent to the hydrostatic level collection box 10; similarly, the vent pipes 7 of the static levels 3 are sequentially communicated and then connected to the static level collecting box 10; and the communication cables 9 of the hydrostatic levels 3 are sequentially communicated and then connected to the hydrostatic level collecting box 10.
It should be noted that the invention can be used for automatic monitoring of deep soil settlement, and can realize automatic monitoring of surface settlement of various monitoring devices by connecting other devices in series, such as surface settlement monitoring devices, inclination measuring holes, water level holes and the like.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a soil body subsides automatic monitoring device which characterized in that includes:
the inner part of the outer sleeve is hollow, and the outer sleeve is vertically embedded at a preset depth position in the soil body;
the inner sedimentation pipe is vertically inserted into the outer sleeve, the bottom of the inner sedimentation pipe is arranged at the preset depth position, and the top of the inner sedimentation pipe protrudes upwards out of the top of the outer sleeve;
the hydrostatic level is arranged at the top of the inner sedimentation pipe;
the protective cover is fixedly connected to the top of the outer sleeve, the protective cover and the outer sleeve form a closed space, and the inner sedimentation tube and the hydrostatic level are both positioned in the closed space;
the hydrostatic level collection box is connected with the hydrostatic level.
2. The automatic soil settlement monitoring device of claim 1, wherein a top plate is disposed on the top of the outer sleeve, a through hole for inserting the inner settlement pipe is disposed on the top plate, and the top plate is covered with the protective cover.
3. An automated soil settlement monitoring device according to claim 2 wherein leveling bubbles are provided on the top plate.
4. An automated soil settlement monitoring device according to claim 1 wherein the inner settling tube is arranged coaxially with the outer jacket tube.
5. An automated soil settlement monitoring device according to claim 4 wherein the inner diameter of the outer casing is 10mm greater than the outer diameter of the inner settling tube.
6. The automated soil settlement monitoring device of claim 1, wherein the inner wall of the outer sleeve and the outer wall of the inner settling tube are both coated with a lubricating oil.
7. The automated soil settlement monitoring device of claim 1, wherein the distance between the top of the inner settling tube and the top of the outer jacket tube is greater than 50 cm.
8. The automatic soil settlement monitoring device of claim 1 wherein a vent pipe, a liquid through pipe and a communication cable are connected between the hydrostatic level and the hydrostatic level collection box.
9. A method of installing an automatic soil settlement monitoring apparatus as claimed in any one of claims 1 to 8 including the steps of:
step S1, setting a preset depth of layered settlement according to the monitoring requirement, and determining the lengths of the outer sleeve and the inner settling tube according to the preset depth;
step S2, fixing a top plate on the top of the outer sleeve, and distributing leveling air bubbles on the top plate;
step S3, fixing the static water level gauge on the top of the inner sedimentation pipe;
step S4, drilling a hole at a position where layered settlement is to be monitored, placing an outer sleeve in the hole to the position of the preset depth, and adjusting by using leveling bubbles to enable the outer sleeve to be vertical; fine sand is filled between the outer wall of the outer sleeve and the wall of the drilled hole;
step S5, inserting the inner sedimentation tube into the outer sleeve, wherein the bottom of the inner sedimentation tube is arranged at the preset depth position and is connected with the hydrostatic level and the hydrostatic level collection box;
and step S6, installing a protective cover, and placing the hydrostatic level and the inner sedimentation pipe in a closed space formed by the protective cover and the outer sleeve.
10. The method for installing an automatic soil settlement monitoring device according to claim 9, further comprising a step S7 of arranging a plurality of automatic soil settlement monitoring devices at intervals on a section to be monitored;
and S8, communicating the hydrostatic levels in the soil body settlement automatic monitoring devices, and connecting the hydrostatic levels to the same hydrostatic level collection box.
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| CN114739359B (en) | 2023-08-15 |
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