CN115655366A - Slope geotechnical engineering monitoring system - Google Patents
Slope geotechnical engineering monitoring system Download PDFInfo
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- CN115655366A CN115655366A CN202211327149.1A CN202211327149A CN115655366A CN 115655366 A CN115655366 A CN 115655366A CN 202211327149 A CN202211327149 A CN 202211327149A CN 115655366 A CN115655366 A CN 115655366A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 30
- 238000006073 displacement reaction Methods 0.000 claims abstract description 90
- 239000002689 soil Substances 0.000 claims abstract description 66
- 239000004567 concrete Substances 0.000 claims abstract description 52
- 238000013016 damping Methods 0.000 claims description 48
- 230000001681 protective effect Effects 0.000 claims description 27
- 239000006260 foam Substances 0.000 claims description 16
- 239000011435 rock Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000011178 precast concrete Substances 0.000 claims 14
- 238000010276 construction Methods 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 11
- 230000035882 stress Effects 0.000 description 10
- 238000001514 detection method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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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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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a side slope geotechnical engineering monitoring system which comprises a vibrating wire type multi-channel acquisition instrument, a soil pressure cell, an anchor cable meter, a joint meter, a stay wire type displacement meter, an inclinometer, a rain gauge and a processor, wherein the processor is connected with the anchor cable meter; still include the shape fixing device that preapres for an unfavorable turn of events of joint meter, the shape fixing device that preapres for an unfavorable turn of events of joint meter includes T type fixing base, protecting tube, left branch strut riser, right branch strut riser and horizontal arc type backup pad, and the other end of horizontal arc type backup pad stretches to during the slope concrete layer, and the joint meter supports on left branch strut riser and right branch strut riser. Because the deformation-preventing fixing device of the joint meter is adopted, the joint meter which is horizontally placed can be effectively supported, the joint meter is well supported and protected, the torque resistance is greatly improved, the joint meter is more firmly installed, the problem that the joint meter is deformed and loses efficacy due to the construction of vibrating of a side slope concrete layer after the joint meter is installed is solved, and the deformation-preventing fixing device has the characteristics of safety, reliability and accurate measurement.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering monitoring, in particular to a side slope geotechnical engineering monitoring system.
Background
After the joint meter in the existing side slope geotechnical engineering monitoring system is installed, in the construction process of a side slope concrete layer, when vibration is carried out, a downward acting force is applied to the joint meter, so that the joint meter generates a large torque, the problem that the joint of the joint meter and a fixed seat is deformed and loosened is caused, and in the serious condition, the shell of the joint meter is deformed, so that the joint meter is invalid. For example, the patent document with the publication number of CN216131595U discloses a novel joint meter mounting device, wherein a joint meter base is fixed on a concrete pouring template through a threaded pull rod, the method is simple, fast and firm, and the concrete base can be quickly positioned and is easy to mount; firstly, pre-burying a joint meter base in a concrete block poured firstly, wherein the joint meter base is in a sleeve shape, internal threads are arranged in the joint meter base, a threaded pull rod is further arranged, one end of the threaded pull rod can penetrate into the joint meter base to be in threaded fit with the joint meter base, stable connection is achieved, the other end of the threaded pull rod is located outside the joint meter base and penetrates out of a concrete pouring template, the joint meter base can be limited through the threaded pull rod at the moment, the joint meter base is prevented from being deviated, when the joint meter is required to be installed, the part, extending out of the concrete pouring template, of the threaded pull rod can be quickly positioned to the joint meter base, then the threaded pull rod is rotated to be taken out, the joint meter is directly inserted into the joint meter base, then concrete is poured after construction, and quick positioning and installation of the joint meter are achieved; preferably, the threaded tie rod is about 20cm in length and 20mm in diameter. Among the above-mentioned technical scheme, fix the method on concrete placement template with the joint meter base through the screw thread pull rod is simple swift firm, has solved the deformation problem of joint meter base, but after the joint meter was installed on the joint meter base, in the work progress of slope concrete layer, when vibrating, still exists the shell of joint meter and appears warping easily, makes the problem that the joint meter became invalid.
The anchor cable meter in the existing side slope geotechnical engineering monitoring system is provided with the following requirements: the anchor cable meter should be taken down lightly in the installation process to avoid collision or fall. Before the anchor cable meter is installed, the anchor cable meter installation base plane is very necessary to be perpendicular to the drilling direction except that the anchor cable meter is required to meet relevant specifications. Whether the central axes of the anchor backing plate and the anchor beam tensioning hole are mutually vertical or not is checked, and the allowable vertical deviation range is +/-1.5 degrees. Any installation beyond this tolerance will result in slippage, a small measurement or distortion of the anchor line gauge on the pad during tensioning of the anchor bundle. Therefore, in order to meet the above requirements, the mounting efficiency is not high; and the anchor rope meter does not carry out effective protection, directly exposes outside, often suffers wind and rain and drenches, and easy ageing is impaired, and the life of anchor rope meter is shorter.
The soil pressure cell in the existing side slope geotechnical engineering monitoring system can fully reflect the deformation rule and mechanism of a side slope by monitoring the change of soil pressure, and when the change rule of the soil pressure of a side slope model is monitored, the embedding position of the soil pressure cell needs to be accurately controlled, but the embedding accuracy is difficult to ensure by the existing soil pressure cell embedding method.
In addition, the existing slope geotechnical engineering monitoring system has some defects for the installation of the pull-wire type displacement meter, and needs to be improved, for example, the patent document with the publication number of CN212963268U discloses an auxiliary device for installing the pull-wire type displacement meter, which comprises a pull-wire type displacement meter, main rods and auxiliary rods, wherein the two main rods are arranged in parallel along the vertical direction, and one side of the upper ends of the two main rods is fixed with a displacement meter limit buckle, one side of the pull-wire type displacement meter is fixed with a sliding chute arranged along the horizontal direction, the displacement meter limit buckles at the upper ends of the two main rods are clamped in the sliding chutes on the pull-wire type displacement meter, so that the pull-wire type displacement meter is fixed at the upper ends of the two main rods, the auxiliary rods are also arranged along the vertical direction, and a steel wire led out from the pull-wire type displacement meter is fixed on the auxiliary rods. In the installation auxiliary device for the stay-supported displacement meter, the sliding grooves comprise two transverse sliding grooves positioned on the upper side and the lower side of the stay-supported displacement meter, the limit buckles of the displacement meter are U-shaped fasteners with two ends bent inwards, the two ends of the U-shaped fasteners are respectively clamped in the transverse sliding grooves on the upper side and the lower side of the stay-supported displacement meter, bolt holes are transversely formed in the bent parts on the upper side and the lower side of the U-shaped fasteners, the limit buckles of the displacement meter are fixed on the main rod through bolts penetrating through the bolt holes and penetrating through the main rod, and the nuts at the end parts of the bolts are screwed to compress the bent parts of the U-shaped fasteners so that the two ends of the U-shaped fasteners tightly press and fix the transverse sliding grooves on the inner sides of the U-shaped fasteners, so that the stay-supported displacement meter is fixed on the upper parts of the two main rods; in the pull-wire type displacement meter installation auxiliary device, the main rod and the auxiliary rod are both of height-adjustable structures; in the installation auxiliary device of the stay wire type displacement meter, the main rod and the auxiliary rod are all multi-stage sleeve telescopic rod pieces, and two adjacent sections of sleeves are locked and positioned through the limiting bolt holes transversely formed and the limiting bolts penetrating through the limiting bolt holes; the auxiliary device for installing the stay wire type displacement meter further comprises a protection box, wherein the protection box is of a cover body structure with an open bottom, the stay wire type displacement meter, the main rod and the auxiliary rod are all arranged on the inner side of the protection box, a box body of the protection box is provided with a wire hole, and a data wire of the stay wire type displacement meter is led out to the outside through the wire hole; in the auxiliary device for installing the stay wire type displacement meter, an openable box door is arranged on one side of the protection box, a door lock is arranged on the box door, and inserting rods for being inserted into the ground are distributed at the bottom of the protection box along the circumferential direction. The technical scheme has the following defects: firstly, the two main rods are buried in the ground and have a certain height with the ground, and once the main rods fall down, the measurement of the stay wire type displacement meter is not accurate; secondly, the pull wire is easily broken by foreign objects, thereby causing the failure of the pull wire type displacement meter.
In addition, the existing slope geotechnical engineering monitoring system does not adopt vibration reduction measures for the installation of the inclinometer, and is easily interfered by external vibration, thereby influencing the detection of the inclinometer.
Disclosure of Invention
In order to overcome the defects, the invention aims to provide a safe, reliable and accurate slope geotechnical engineering monitoring system.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a slope geotechnical engineering monitoring system, includes vibrating wire formula multichannel collection appearance, soil pressure cell, anchor rope meter, joint meter, guyed displacement meter, inclinometer, hyetometer and treater, and the surface displacement information of the slope that guyed displacement meter detected gives the treater with information transfer, and the rainfall information under the slope place environment that the hyetometer detected gives the treater with information transfer, the treater is mutual with vibrating wire formula multichannel collection appearance, vibrating wire formula multichannel collection appearance is used for gathering: the method comprises the following steps that (1) soil pressure information of a side slope detected by a soil pressure box, anchor rod internal force in the side slope detected by an anchor cable meter, crack information of the side slope detected by a crack meter and soil deep layer horizontal displacement information of the side slope detected by an inclinometer are obtained; the anti-deformation fixing device comprises a T-shaped fixing seat, a protective pipe, a left supporting vertical plate, a right supporting vertical plate and a transverse arc supporting plate, the T-shaped fixing seat and the protective pipe are arranged in a T-shaped groove of slope rock soil, one end of the protective pipe is in threaded connection with the T-shaped fixing seat, the T-shaped fixing seat is fixed on the bottom surface of the T-shaped groove through expansion screws and is filled with fillers to be sealed, one end of the transverse arc supporting plate is connected with the lower side of the other end of the protective pipe, the other end of the transverse arc supporting plate extends into a slope concrete layer, the seam meter is supported on the left supporting vertical plate and the right supporting vertical plate, the left supporting vertical plate and the right supporting vertical plate are fixed on the transverse arc supporting plate and are located in the slope concrete layer, and one end of the seam meter extends into the protective pipe and is in threaded connection with a fixing screw hole in the T-shaped fixing seat.
Furthermore, the top side of the left supporting vertical plate and the top side of the right supporting vertical plate are both provided with arc grooves, and the joint meter is supported in the arc grooves on the left supporting vertical plate and the right supporting vertical plate.
Further, still include the fixing device of anchor rope meter, the fixing device of anchor rope meter includes screw anchor rod, pressure-bearing left backing plate, pressure-bearing right backing plate, support frame, tensioning equipment, one-level lock nut, second grade lock nut and tertiary lock nut, and the one end anchor of screw anchor rod is connected with tensioning equipment after passing buttress, pressure-bearing left backing plate, anchor rope meter, pressure-bearing right backing plate, the support frame on the side wall of side slope ground barricade in proper order to the side slope ground, the other end, tensioning equipment carries out the stretch-draw to the screw anchor rod, and when pressure exceeded anchor rope meter rated pressure 13%, through on the screw anchor rod and lie in support frame one-level lock nut, second grade lock nut and tertiary lock nut locking fixed. The accuracy of anchor rope meter can be improved.
Furthermore, the edge of the pressure-bearing left base plate is provided with a C-shaped limiting guide sleeve, the C-shaped limiting guide sleeve is perpendicular to the plate surface of the pressure-bearing left base plate, the anchor cable meter is located in the C-shaped limiting guide sleeve, and the C-shaped limiting guide sleeve is used for enabling the end face of the anchor cable meter to be in complete contact with the plate of the pressure-bearing left base plate and playing a role in protecting the anchor cable meter.
Furthermore, the number of the soil pressure boxes is 4, the soil pressure box fixing device also comprises a soil pressure box fixing device, the soil pressure box fixing device comprises a support frame, 4 limit sleeves and a jacking screw, step-shaped step surfaces are arranged on the support frame, the 4 limit sleeves are respectively placed on the 4 step-shaped step surfaces with upward openings and are respectively welded with the 4 step-shaped step surfaces, the 4 soil pressure boxes are respectively arranged in the 4 limit sleeves, stress sensing plates of the soil pressure boxes face upward, and the height of each limit sleeve is smaller than the thickness of each soil pressure box; and a screw hole is formed in the side wall of the limiting sleeve, and a jacking screw penetrates through the screw hole to jack the soil pressure cell tightly.
Furthermore, the two stay wire type displacement meters are arranged, and the stay wire on one stay wire type displacement meter is connected with the stay wire on the other stay wire type displacement meter.
Furthermore, the pull-wire type displacement meter fixing device comprises a concrete prefabricated seat A, a concrete prefabricated seat B, a protective pipe, a screw and a nut, wherein the nut is pre-embedded in the concrete prefabricated seat A and the concrete prefabricated seat B, the concrete prefabricated seat A and the concrete prefabricated seat B are embedded in slope rock soil, the concrete prefabricated seat A and the concrete prefabricated seat B are flush with the surface of a slope, the protective pipe is arranged on the surface of the slope and located between the concrete prefabricated seat A and the concrete prefabricated seat B, the screw penetrates through a mounting hole in the pull-wire type displacement meter and is connected with the nut, the two pull-wire type displacement meters are respectively fixed on the concrete prefabricated seat A and the concrete prefabricated seat B, and a pull wire of the pull-wire type displacement meter on the concrete prefabricated seat A penetrates through the protective pipe and is connected with a pull wire of the pull-wire type displacement meter on the concrete prefabricated seat B.
The device comprises a cylindrical fixed pipe, a lifting rope, a vibration damping pipe column, a bottom cover and permanent magnets, wherein an upper port of the vibration damping pipe column is closed, a lower port of the vibration damping pipe column is open, an annular boss is arranged on the inner wall surface of the vibration damping pipe column, an annular PE foam vibration damping seat and a lifting disc are arranged in the vibration damping pipe column, the lifting disc is supported on the annular PE foam vibration damping seat, the annular PE foam vibration damping seat is supported on the annular boss, the upper end of the cylindrical fixed pipe column is inserted into the lower port of the vibration damping pipe column, the annular boss is supported at the upper end of the cylindrical fixed pipe, the plurality of inclinometers are located in the cylindrical fixed pipe and are sequentially connected in series through the lifting rope, the uppermost inclinometer is connected with one end of the lifting rope, the other end of the lifting rope extends into the vibration damping pipe column and penetrates through the annular PE foam vibration damping seat to be connected with a lifting lug at the central part of the bottom surface of the lifting disc, the lowermost inclinometer is fixed by the permanent magnets, a gap is reserved between the lowermost inclinometer and the bottom cover is magnetically connected with the outer pipe of the cylindrical fixed in a threaded manner.
Further, the thickness of the ring-shaped PE foam vibration damping seat is 5cm.
Further, the rain gauge adopts a siphon rain gauge, a weighing rain gauge or a tipping bucket rain gauge.
The invention has the beneficial effects that:
firstly, due to the adoption of the deformation-preventing fixing device of the joint meter, the horizontally placed joint meter can be effectively supported, the joint meter is well supported and protected, the torque resistance is greatly improved, the joint meter is more firmly installed, the problem of deformation and failure of the joint meter caused by the vibration construction of a side slope concrete layer after the joint meter is installed is solved, and the deformation-preventing fixing device has the characteristics of safety, reliability and accurate measurement;
secondly, when the pressure exceeds 13% of the rated pressure of the anchor cable meter, the anchor rod is locked and fixed through a primary locking nut, a secondary locking nut and a tertiary locking nut which are arranged on the threaded anchor rod and positioned in the supporting frame, so that the locking and fixing effects of the anchor rod are improved, and the measuring accuracy of the anchor cable meter is improved;
thirdly, the C-shaped limiting guide sleeve is additionally arranged at the edge of the pressure-bearing left base plate, so that the end face of the anchor cable meter is in complete contact with the plate of the pressure-bearing left base plate, the installation efficiency is greatly improved, the stress on the bearing surface of the anchor cable meter is more uniform, the phenomenon of anchor cable meter deviation caused by nonuniform stress is effectively prevented, the C-shaped limiting guide sleeve can also shield wind and rain for the anchor cable meter, a certain protection effect is achieved, and the C-shaped limiting guide sleeve has the characteristics of ageing resistance and long service life;
fourthly, as the soil pressure cell is supported on the step surface of the support frame, the stress induction plate of the soil pressure cell is always in an upward state, so that the direction of the stress induction plate of the soil pressure cell is perpendicular to the direction of the soil pressure, and the detection precision of the soil pressure is improved;
fifthly, due to the dual functions of the limiting sleeve and the jacking screw, the soil pressure box is firmly fixed, the displacement and the inclination of the soil pressure box are effectively prevented, and the installation form of the soil pressure box is kept unchanged;
sixth, because two stay-supported displacement meters are adopted, and the stay wires of the two stay-supported displacement meters are butted, when the device is used, the two stay-supported displacement meters simultaneously transmit data to the vibrating wire type multi-channel acquisition instrument, the sum of the data of the two stay-supported displacement meters is the displacement of a slope, and the butt joint design of the two stay-supported displacement meters greatly improves the safety and reliability of the device, when one displacement meter has a problem, the other displacement meter can also normally work, thereby ensuring the effectiveness of displacement detection;
seventh, because the structural form that the concrete prefabricated seat is flush with the surface of the side slope is adopted, the problems that the stay wire fixing point and the stay wire type displacement meter are higher away from the ground due to the adoption of the support rod in the prior art, and the stay wire type displacement meter is easy to lose efficacy when disasters such as earthquakes occur are solved; particularly, the protection pipe is additionally arranged, so that the stay wire is well protected, the problem that peripheral sundries break off the stay wire is avoided, and the effectiveness of displacement detection is further ensured;
eighth, because the damping pipe column is additionally arranged on the fixing device of the inclinometer, the plurality of inclinometers connected in series are hung on the damping pipe column, the mechanical vibration generated by the surrounding environment is weakened by the damping pipe column, and the influence of the external mechanical vibration on the inclinometer is greatly reduced; in particular to the structural design of the vibration damping pipe column, which has the characteristics of good vibration damping effect and simple structure.
Drawings
The invention is further described with the aid of the accompanying drawings, in which the embodiments do not constitute any limitation, and for a person skilled in the art, without inventive effort, further drawings may be obtained from the following figures:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a deformation prevention fixing device of the crack meter shown in FIG. 1;
FIG. 3 is a schematic structural view of the transverse arc support plate shown in FIG. 2;
FIG. 4 is a schematic view of the anchor cable gauge attachment means of FIG. 1;
FIG. 5 is a schematic structural view of the pressure-bearing left pad and the C-shaped limiting guide sleeve shown in FIG. 4;
FIG. 6 is a side view of FIG. 5;
FIG. 7 is a schematic structural view of a fixing device of the soil pressure cell shown in FIG. 1;
FIG. 8 is a schematic structural view of a fixing device of the pull-wire type displacement meter shown in FIG. 1;
fig. 9 is a schematic structural view of a fixing device of the inclinometer shown in fig. 1.
In the figure: 1. a processor; 2. A vibrating wire type multi-channel acquisition instrument; 3. A soil pressure cell; 4. An anchor cable meter; 5. A joint meter; 6. a pull-wire type displacement meter; 7. an inclinometer; 8. a rain gauge; 9. a T-shaped fixed seat; 10. a protective tube; 11. a left supporting vertical plate; 12. a right supporting vertical plate; 13. a transverse arc-shaped support plate; 14. a T-shaped groove; 15. an expansion screw; 16. slope rock soil; 17. a side slope concrete layer; 18. fixing screw holes; 19. an arc groove; 20. a threaded anchor rod; 21. a pressure-bearing left base plate; 22. a pressure-bearing right base plate; 23. a support frame; 24. tensioning devices; 25. a primary lock nut; 26. a secondary locking nut; 27. a tertiary locking nut; 28. supporting a pier; 29. a C-shaped limiting guide sleeve; 30. a support frame; 31. a limiting sleeve; 32. jacking the screw; 33. a stair-shaped step surface; 34. a screw hole; 35. prefabricating a concrete seat A; 36. prefabricating a base B by concrete; 37. a protective tube; 38. a screw; 39. a nut; 40. a cylindrical fixed tube; 41. a lifting rope; 42. a vibration damping pipe column; 43. a bottom cover; 44. permanent magnet blocks; 45. an annular boss; 46. an annular PE foam vibration damping seat; 47. hoisting a disc; 48. and (7) lifting lugs.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments, and it is to be noted that the embodiments and features of the embodiments of the present application can be combined with each other without conflict.
As shown in fig. 1, a side slope geotechnical engineering monitoring system, including vibrating wire formula multichannel acquisition instrument 2, soil pressure cell 3, anchor rope meter 4, joint meter 5, guyed displacement meter 6, inclinometer 7, hyetometer 8 and treater 1, the surface displacement information of the side slope that guyed displacement meter 6 detected and with information transfer to treater 1, the rainfall information under the side slope place environment that hyetometer 8 detected and with information transfer to treater 1, treater 1 is mutual with vibrating wire formula multichannel acquisition instrument 2, vibrating wire formula multichannel acquisition instrument 2 is used for gathering: the method comprises the following steps that (1) soil pressure information of a side slope is detected by a soil pressure box 3, anchor rod internal force in the side slope is detected by an anchor cable meter 4, crack information of the side slope is detected by a crack meter 5, and soil deep layer horizontal displacement information of the side slope is detected by an inclinometer 7;
as shown in fig. 2, the anti-deformation fixing device of the crack meter further comprises a T-shaped fixing seat 9, a protective tube 10, a left supporting vertical plate 11, a right supporting vertical plate 12 and a transverse arc supporting plate 13, wherein the T-shaped fixing seat 9 and the protective tube 10 are arranged in a T-shaped groove 14 of a slope rock soil 16, one end of the protective tube 10 is in threaded connection with the T-shaped fixing seat 9, the T-shaped fixing seat 9 is fixed on the bottom surface of the T-shaped groove 14 through an expansion screw 15, the T-shaped groove 14 is filled and sealed with a filler, one end of the transverse arc supporting plate 13 is connected with the lower side of the other end of the protective tube 10, the other end of the transverse arc supporting plate 13 extends into the slope concrete layer 17, the crack meter 5 is supported on the left supporting vertical plate 11 and the right supporting vertical plate 12, the left supporting vertical plate 11 and the right supporting vertical plate 12 are fixed on the transverse arc supporting plate 13 and are located in the slope concrete layer 17, and one end of the crack meter 5 extends into the protective tube 10 and is in threaded connection with a fixing screw hole 18 on the T-shaped fixing seat 9. The transverse arc-shaped supporting plate 13 can effectively support the horizontally placed joint meter, plays a good supporting and protecting role for the joint meter, greatly improves the torque resistance, enables the joint meter to be installed more firmly, and solves the problem that the joint meter is deformed and loses efficacy due to the construction of vibrating of a side slope concrete layer after the joint meter is installed.
As shown in fig. 3, both the top side of the left vertical supporting plate 11 and the top side of the right vertical supporting plate 12 are provided with an arc groove 19, and the joint meter 5 is supported in the arc grooves 19 on the left vertical supporting plate 11 and the right vertical supporting plate 12.
As shown in fig. 4, 5, and 6, the anchor cable gauge fixing device further includes an anchor cable gauge fixing device, the anchor cable gauge fixing device includes a threaded anchor rod 20, a pressure-bearing left pad 21, a pressure-bearing right pad 22, a support frame 23, a tensioning device 24, a first-stage locking nut 25, a second-stage locking nut 26, and a third-stage locking nut 27, one end of the threaded anchor rod 20 is anchored in the slope rock 16, and the other end of the threaded anchor rod sequentially passes through a buttress 28 on a sidewall of the slope rock retaining wall, the pressure-bearing left pad 21, the anchor cable gauge 4, the pressure-bearing right pad 22, and the support frame 23 and then is connected with the tensioning device 24, the tensioning device 24 tensions the threaded anchor rod 20, and when the pressure exceeds 13% of the rated pressure of the anchor cable gauge 4, the threaded anchor rod is locked and fixed by the first-stage locking nut 25, the second-stage locking nut 26, and the third-stage locking nut 27 on the threaded anchor rod 20 and located in the support frame 23, so that not only the locking fixing effect of the anchor rod is improved, but also the accuracy of the anchor cable gauge measurement is improved.
The edge of the pressure-bearing left base plate 21 is provided with a C-shaped limiting guide sleeve 29, the C-shaped limiting guide sleeve 29 is perpendicular to the plate surface of the pressure-bearing left base plate 21, and the anchor cable meter 4 is located in the C-shaped limiting guide sleeve 29. The C-shaped limiting guide sleeve 29 is used for enabling the end face of the anchor cable meter to be in complete contact with the plate of the pressure-bearing left base plate, the end face of the anchor cable meter is enabled to be in complete contact with the plate of the pressure-bearing left base plate, stress on the bearing face of the anchor cable meter is enabled to be more uniform, the phenomenon that the anchor cable meter deviates due to uneven stress is effectively prevented, the C-shaped limiting guide sleeve can also cover wind and rain for the anchor cable meter, and a certain protection effect is achieved.
As shown in fig. 7, the number of the soil pressure boxes 3 is 4, and the soil pressure box fixing device further comprises a fixing device for the soil pressure boxes, the fixing device for the soil pressure boxes comprises a support frame 30, 4 limit sleeves 31 and a tightening screw 32, a step-shaped step surface 33 is arranged on the support frame 30, the 4 limit sleeves 31 are respectively placed on the 4 step-shaped step surfaces 33 with openings facing upwards and are respectively welded with the 4 step-shaped step surfaces 33, the 4 soil pressure boxes 3 are respectively arranged in the 4 limit sleeves 31, and enable stress sensing plates of the soil pressure boxes to face upwards, and the height of the limit sleeves 31 is smaller than the thickness of the soil pressure boxes 3; the side wall of the limiting sleeve 31 is provided with a screw hole 34, and the jacking screw 32 penetrates through the screw hole 34 to jack the soil pressure cell 3 tightly. Because the soil pressure cell is supported on the step surface of the support frame, the stress induction plate of the soil pressure cell is always in an upward state, and the stress induction plate of the soil pressure cell is ensured to be vertical to the soil pressure direction, so that the detection precision of the soil pressure is improved. Due to the dual functions of the limiting sleeve and the jacking screw, the soil pressure box is firmly fixed, the displacement and the inclination of the soil pressure box are effectively prevented, and the installation form of the soil pressure box is kept unchanged.
As shown in fig. 8, two stay wire type displacement meters are provided, and the stay wire of one stay wire type displacement meter is connected with the stay wire of the other stay wire type displacement meter. The utility model discloses a displacement meter, including two stay-supported displacement meters, the instrument that is connected with the displacement meter butt joint, during the use, by two stay-supported displacement meters simultaneously to the appearance conveying data of vibrating wire formula multichannel collection, the sum of the data of two stay-supported displacement meters is exactly the displacement volume on side slope, the butt joint design of two stay-supported displacement meters has improved the fail safe nature of equipment greatly, and when a displacement meter goes wrong, another displacement meter can also normally work, has ensured displacement detection's validity.
Specifically, the stay wire type displacement meter fixing device comprises a concrete prefabricated seat A35, a concrete prefabricated seat B36, a protective pipe 37, a screw 38 and a nut 39, wherein the nut 39 is pre-embedded in the concrete prefabricated seat A35 and the concrete prefabricated seat B36, the concrete prefabricated seat A35 and the concrete prefabricated seat B36 are embedded in the side slope rock soil 16, the concrete prefabricated seat A35 and the concrete prefabricated seat B36 are flush with the surface of the side slope, the protective pipe 37 is arranged on the surface of the side slope and located between the concrete prefabricated seat A35 and the concrete prefabricated seat B36, the screw 38 penetrates through a mounting hole in the stay wire type displacement meter 6 to be connected with the nut 39, the two stay wire type displacement meters 6 are respectively fixed on the concrete prefabricated seat A35 and the concrete prefabricated seat B36, and stay wires of the stay wire type displacement meters 6 on the concrete prefabricated seat A35 penetrate through the protective pipe 37 to be connected with stay wires of the stay wire type displacement meters 6 on the concrete prefabricated seat B36. The structural form that the concrete prefabricated seat is flush with the surface of the side slope solves the problems that the stay wire fixing point and the stay wire type displacement meter are higher away from the ground due to the adoption of the support rod in the prior art, and the stay wire type displacement meter is easy to lose efficacy when disasters such as earthquake occur; especially, this patent has still add the protective tube, has played fine guard action to the acting as go-between, has avoided the problem that peripheral debris broke the acting as go-between to the validity of displacement detection has further been ensured.
As shown in fig. 9, the inclinometer fixing device further comprises a cylindrical fixing tube 40, a lifting rope 41, a damping pipe column 42, a bottom cover 43 and a permanent magnet 44, wherein the upper end opening of the damping pipe column 42 is closed, the lower end opening of the damping pipe column is open, an annular boss 45 is arranged on the inner wall surface of the damping pipe column 42, an annular PE foam damping seat 46 and a hoisting disc 47 are arranged in the damping pipe column 42, the hoisting disc 47 is supported on the annular PE foam damping seat 46, the annular PE foam damping seat 46 is supported on the annular boss 45, and the thickness of the annular PE foam damping seat is 5cm. The upper end of the cylindrical fixed pipe 40 is inserted into the lower port of the vibration damping pipe column 42, the annular boss 45 is supported at the upper end of the cylindrical fixed pipe 40, the plurality of inclinometers 7 are positioned in the cylindrical fixed pipe 40 and are sequentially connected in series through the lifting rope 41, wherein the uppermost inclinometer 7 is connected with one end of the lifting rope 41, the other end of the lifting rope 41 extends into the vibration damping pipe column 42 and passes through the annular PE foam vibration damping seat 46 to be connected with the lifting lug 48 at the central part of the bottom surface of the lifting disc 47, the lowermost inclinometer 7 is magnetically attracted and fixed by the permanent magnet 44, a gap is reserved between the lowermost inclinometer 7 and the permanent magnet 44, the permanent magnet 44 is fixed in the bottom cover 43, and the bottom cover 43 is in threaded connection with the lower end of the cylindrical outer pipe 40. The damping pipe column is additionally arranged on the fixing device of the inclinometer, the plurality of inclinometers connected in series are hung on the damping pipe column, the mechanical vibration generated by the surrounding environment is weakened by the damping pipe column, and the influence of the external mechanical vibration on the inclinometer is greatly reduced; especially, the structural design of the damping pipe column has the characteristics of good damping effect and simple structure.
The rain gauge 8 adopts a siphon type rain gauge, a weighing type rain gauge or a tipping bucket type rain gauge.
The slope geotechnical engineering monitoring system deeply understands the deformation mechanism of the slope through slope safety monitoring, thereby providing feedback for geological disaster protection and reinforcement treatment, and acquiring related information on the influence of engineering and the like; through monitoring data analysis, various characteristic information of slope deformation is obtained, the dynamic change rule of the slope deformation is analyzed, possible damage of slope engineering is predicted, and scientific basis is provided for disaster prevention and reduction. The automatic slope monitoring system can realize automatic uploading, report pushing and real-time 24-hour monitoring, ensure that the construction and operation periods of the slope engineering are within the real-time monitoring range, and furthest exert the economic benefits of the slope engineering.
The above embodiments are merely descriptions of the embodiments of the present invention, and not limitations to the spirit and scope of the present invention, and equivalent structures and direct or indirect applications of the technical solutions of the present invention by those skilled in the art should be within the scope of the present invention without departing from the design solutions of the present invention.
Claims (10)
1. The utility model provides a side slope geotechnical engineering monitoring system which characterized in that: including vibration wire formula multichannel collection appearance, soil pressure cell, anchor rope meter, joint meter, guyed displacement meter, inclinometer, hyetometer and treater, the surface displacement information of the side slope that guyed displacement meter detected sends information transfer to the treater, and the rainfall information under the side slope place environment that the hyetometer detected sends information transfer to the treater, the treater is mutual with vibration wire formula multichannel collection appearance, vibration wire formula multichannel collection appearance is used for gathering: the method comprises the following steps that (1) soil pressure information of a side slope detected by a soil pressure box, anchor rod internal force in the side slope detected by an anchor cable meter, crack information of the side slope detected by a crack meter and soil deep layer horizontal displacement information of the side slope detected by an inclinometer are obtained; the anti-deformation fixing device of the joint meter comprises a T-shaped fixing seat, a protective pipe, a left supporting vertical plate, a right supporting vertical plate and a transverse arc-shaped supporting plate, wherein the T-shaped fixing seat and the protective pipe are arranged in a T-shaped groove of slope rock soil, one end of the protective pipe is in threaded connection with the T-shaped fixing seat, the T-shaped fixing seat is fixed on the bottom surface of the T-shaped groove through an expansion screw and is filled with filler to seal the T-shaped groove, one end of the transverse arc-shaped supporting plate is connected with the lower side of the other end of the protective pipe, the other end of the transverse arc-shaped supporting plate extends into a slope concrete layer, the joint meter is supported on the left supporting vertical plate and the right supporting vertical plate, the left supporting vertical plate and the right supporting vertical plate are fixed on the transverse arc-shaped supporting plate and are located in the slope concrete layer, and one end of the joint meter extends into the protective pipe and is in threaded connection with a fixing screw hole in the T-shaped fixing seat.
2. The slope geotechnical engineering monitoring system according to claim 1, wherein: arc grooves are formed in the top side of the left supporting vertical plate and the top side of the right supporting vertical plate, and the joint meter is supported in the arc grooves in the left supporting vertical plate and the right supporting vertical plate.
3. The slope geotechnical engineering monitoring system of claim 1, wherein: still include the fixing device of anchor rope meter, the fixing device of anchor rope meter includes screw anchor rod, pressure-bearing left backing plate, pressure-bearing right backing plate, support frame, tensioning equipment, one-level lock nut, second grade lock nut and tertiary lock nut, and the one end anchor of screw anchor rod is connected with tensioning equipment after slope ground, the other end passes buttress, pressure-bearing left backing plate, anchor rope meter, pressure-bearing right backing plate, the support frame on the lateral wall of slope ground barricade in proper order, tensioning equipment carries out the stretch-draw to the screw anchor rod, and when pressure exceeded anchor rope meter rated pressure 13%, through on the screw anchor rod and lie in one-level lock nut, second grade lock nut and the tertiary lock nut locking of support frame fixed.
4. The slope geotechnical engineering monitoring system according to claim 3, wherein: the edge of the pressure-bearing left base plate is provided with a C-shaped limiting guide sleeve, the C-shaped limiting guide sleeve is perpendicular to the plate surface of the pressure-bearing left base plate, the anchor cable meter is located in the C-shaped limiting guide sleeve, and the C-shaped limiting guide sleeve is used for enabling the end surface of the anchor cable meter to be in complete contact with the plate of the pressure-bearing left base plate and playing a protection role for the anchor cable meter.
5. The slope geotechnical engineering monitoring system according to claim 1, wherein: the soil pressure box is provided with 4 soil pressure boxes and further comprises a fixing device of the soil pressure box, the fixing device of the soil pressure box comprises a support frame, 4 limiting sleeves and a jacking screw, a step ladder type step surface is arranged on the support frame, the 4 limiting sleeves are respectively placed on the 4 step ladder type step surfaces with upward openings and are respectively welded with the 4 step ladder type step surfaces, the 4 soil pressure boxes are respectively arranged in the 4 limiting sleeves, stress induction plates of the soil pressure boxes face upward, and the height of each limiting sleeve is smaller than the thickness of the soil pressure box; and a screw hole is formed in the side wall of the limiting sleeve, and a jacking screw penetrates through the screw hole to jack the soil pressure cell tightly.
6. The slope geotechnical engineering monitoring system according to claim 1, wherein: the two stay wire type displacement meters are arranged, and the stay wire on one stay wire type displacement meter is connected with the stay wire on the other stay wire type displacement meter.
7. The slope geotechnical engineering monitoring system according to claim 6, wherein: the utility model discloses a displacement meter is connected with the nut, still includes the fixing device of stay-supported displacement meter, it includes precast concrete seat A, precast concrete seat B, protective tube, screw and nut, the nut is pre-buried in precast concrete seat A and precast concrete seat B, precast concrete seat A and precast concrete seat B bury underground in the slope ground to precast concrete seat A and precast concrete seat B all with the surface parallel and level of slope, the protective tube is established on the surface of slope and is located precast concrete seat A and precast concrete seat B between, the screw pass the mounting hole on the stay-supported displacement meter with the nut connect, do not fix two stay-supported displacement meters on precast concrete seat A and precast concrete seat B, the stay-supported of the stay-supported displacement meter on the precast concrete seat A passes the protective tube and is connected with the stay-supported displacement meter on the precast concrete seat B's.
8. The slope geotechnical engineering monitoring system of claim 1, wherein: the device comprises a cylindrical fixed pipe, a lifting rope, a vibration damping pipe column, a bottom cover and permanent magnets, wherein an upper port of the vibration damping pipe column is closed, a lower port of the vibration damping pipe column is open, an annular boss is arranged on the inner wall surface of the vibration damping pipe column, an annular PE foam vibration damping seat and a lifting disc are arranged in the vibration damping pipe column, the lifting disc is supported on the annular PE foam vibration damping seat, the annular PE foam vibration damping seat is supported on the annular boss, the upper end of the cylindrical fixed pipe is inserted into the lower port of the vibration damping pipe column, the annular boss is supported at the upper end of the cylindrical fixed pipe, the inclinometers are located in the cylindrical fixed pipe and are sequentially connected in series through the lifting rope, the uppermost inclinometer is connected with one end of the lifting rope, the other end of the lifting rope extends into the vibration damping pipe column and penetrates through the annular PE foam vibration damping seat to be connected with a lifting lug at the central part of the bottom surface of the lifting disc, the inclinometer at the lowermost is fixed by the permanent magnets, a gap is reserved between the inclinometer at the lowermost inclinometer and the permanent magnets, and the bottom cover is in threaded connection with the lower end of the cylindrical outer pipe.
9. The slope geotechnical engineering monitoring system according to claim 8, wherein: the thickness of the annular PE foam vibration damping seat is 5cm.
10. The slope geotechnical engineering monitoring system according to claim 1, wherein: the rain gauge adopts a siphon rain gauge, a weighing rain gauge or a tipping bucket rain gauge.
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