CN115655366B - Side slope geotechnical engineering monitoring system - Google Patents
Side slope geotechnical engineering monitoring system Download PDFInfo
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- CN115655366B CN115655366B CN202211327149.1A CN202211327149A CN115655366B CN 115655366 B CN115655366 B CN 115655366B CN 202211327149 A CN202211327149 A CN 202211327149A CN 115655366 B CN115655366 B CN 115655366B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 22
- 238000006073 displacement reaction Methods 0.000 claims abstract description 86
- 239000002689 soil Substances 0.000 claims abstract description 76
- 230000008093 supporting effect Effects 0.000 claims abstract description 42
- 230000009467 reduction Effects 0.000 claims description 27
- 239000006260 foam Substances 0.000 claims description 16
- 239000011435 rock Substances 0.000 claims description 13
- 230000002633 protecting effect Effects 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 8
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000013016 damping Methods 0.000 description 22
- 238000009434 installation Methods 0.000 description 14
- 238000001514 detection method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000002265 prevention 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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- Piles And Underground Anchors (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a slope geotechnical engineering monitoring system which comprises a vibrating string type multichannel acquisition instrument, a soil pressure box, an anchor cable meter, a seam meter, a stay wire type displacement meter, an inclinometer, a rain gauge and a processor, wherein the vibrating string type multichannel acquisition instrument is arranged on the side wall of the soil pressure box; the anti-deformation fixing device of the joint meter comprises a T-shaped fixing seat, a protection pipe, a left supporting vertical plate, a right supporting vertical plate and a transverse arc-shaped supporting plate, wherein the other end of the transverse arc-shaped supporting plate extends into a side slope concrete layer, and the joint meter is supported on the left supporting vertical plate and the right supporting vertical plate. Due to the adoption of the deformation-preventing fixing device of the joint meter, 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 invalid due to vibration construction of a side slope concrete layer after the joint meter is installed is solved, and the joint meter has the characteristics of safety, reliability and accuracy in measurement.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering monitoring, in particular to a slope geotechnical engineering monitoring system.
Background
After the seam measuring meter in the existing slope geotechnical engineering monitoring system is installed, in the construction process of a slope concrete layer, a downward acting force is applied to the seam measuring meter when vibrating, so that the seam measuring meter generates great torque, the problem that the joint of the seam measuring meter and a fixed seat deforms and loosens is caused, and when serious, the shell of the seam measuring meter deforms, so that the seam measuring meter fails. For example, patent document with publication number CN216131595U discloses a novel joint meter installation device, the joint meter base is fixed on a concrete pouring template through a threaded pull rod, the method is simple, fast and firm, the concrete base can be positioned rapidly, and the installation is easy; specifically, firstly, embedding a seam meter base in a concrete block, wherein the seam meter base is sleeve-shaped, an internal thread is arranged in the seam meter base, a thread pull rod is further arranged, one end of the thread pull rod can penetrate into the seam meter base to be in threaded fit with the seam meter base, stable connection is realized, the other end of the thread pull rod is positioned outside the seam meter base and penetrates out of a concrete pouring template, at the moment, the seam meter base can be limited by the thread pull rod, the seam meter base is prevented from being deviated, and when the seam meter is required to be installed, at the moment, the part of the thread pull rod extending out of the concrete pouring template can be rapidly positioned to the seam meter base, then the thread pull rod is rotated to be taken out, the seam meter is directly inserted into the seam meter base, and concrete is poured after construction, so that the seam meter is rapidly positioned and installed; preferably, the threaded pull rod is about 20cm in length and 20mm in diameter. According to the technical scheme, the method for fixing the joint meter base on the concrete pouring template through the threaded pull rod is simple, quick and firm, the problem of deformation of the joint meter base is solved, but when the joint meter is installed on the joint meter base and vibrated in the construction process of a side slope concrete layer, the problem that the shell of the joint meter is easy to deform and the joint meter is invalid still exists.
The following requirements are set on the anchor rope meter in the existing slope geotechnical engineering monitoring system: the anchor cable gauge should be held and put lightly in the installation process to avoid collision or falling. Before the anchor cable gauge is installed, the anchor cable gauge is required to be ensured to be perpendicular to the drilling direction except for meeting relevant specifications. It should be checked whether the central axes of the anchor pad and anchor bundle Zhang Lakong are perpendicular to each other, with an allowable vertical deviation of + -1.5 deg.. Any installation beyond this offset will result in slippage, small measurements or distortion of the cable gauges on the tie plate during tensioning of the anchor beam. So that the installation efficiency is not high in order to meet the above requirements; and the anchor rope meter is not effectively protected, is directly exposed outside and is often subjected to wind blowing and rain, so that the anchor rope meter is easy to age and damage, and has shorter service life.
The change of the monitored soil pressure can fully reflect the deformation rule and mechanism of the side slope, and when the change rule of the soil pressure of the side slope model is monitored, the embedded position of the soil pressure box needs to be accurately controlled, but the embedded accuracy of the existing soil pressure box is difficult to ensure, especially after the embedded soil pressure box is embedded, one side of the soil pressure box moves downwards and the other side of the soil pressure box tilts upwards due to uneven stress in construction, so that the stress surface of the soil pressure box is not perpendicular to the soil pressure direction, and the detection accuracy is affected.
Still, current side slope geotechnical engineering monitoring system, to the installation of stay-supported displacement meter, there are some defects, need improve, for example, the patent literature of bulletin number CN212963268U, and it discloses a stay-supported displacement meter installation auxiliary device, including stay-supported displacement meter, mobile jib and auxiliary rod, two mobile jib along vertical parallel arrangement, and one side of two mobile jib upper ends all is fixed with the spacing buckle of displacement meter, one side of stay-supported displacement meter is fixed with the spout along horizontal setting, and the spacing buckle of displacement meter of two mobile jib upper ends all blocks in locating the spout on the stay-supported displacement meter to be fixed in the upper end of two mobile jib with the stay-supported displacement meter, the auxiliary rod is also along vertical setting, and is fixed in on the auxiliary rod by the steel wire that draws on the stay-supported displacement meter. In the aforementioned pull-wire type displacement meter installation auxiliary device, the sliding groove comprises two transverse sliding grooves positioned at the upper and lower sides of the pull-wire type displacement meter, the displacement meter limiting buckle is a U-shaped buckle with both ends bent inwards, both ends of the U-shaped buckle are respectively clamped in the transverse sliding grooves at the upper and lower sides of the pull-wire type displacement meter, the bending parts at the upper and lower sides of the U-shaped buckle are respectively provided with a bolt hole along the transverse direction, the upper and lower sides of the U-shaped buckle fix the displacement meter limiting buckle on the main rod through bolts penetrating through the bolt holes, and nuts at the end parts of the bolts are screwed to compress the bending parts of the U-shaped buckle so that both ends of the U-shaped buckle fasten the transverse sliding groove at the inner side of the U-shaped buckle, thereby fixing the pull-wire type displacement meter at the upper parts of the two main rods; in the stay wire type displacement meter installation auxiliary device, the main rod and the auxiliary rod are of height-adjustable structures; in the stay wire type displacement meter installation auxiliary device, the main rod and the auxiliary rod are multi-stage sleeve telescopic rod pieces, and two adjacent sections of sleeves are locked and positioned through a transversely arranged limiting bolt hole and a limiting bolt penetrating through the limiting bolt hole; 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 wire hole is formed in the box body of the protection box, and a data wire of the stay wire type displacement meter is led out from the wire hole; in the pull-wire type displacement meter installation auxiliary device, one side of the protection box is provided with an openable box door, the box door is provided with a door lock, and inserted bars for being inserted into the ground are distributed at the bottom of the protection box along the circumferential direction. The technical scheme specifically has the following defects: firstly, two main rods are buried on 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 inaccurate; secondly, the stay wire is easily broken by a foreign object, so that the stay wire type displacement meter is invalid.
In addition, the existing slope geotechnical engineering monitoring system does not adopt vibration reduction measures for installation of the inclinometer, and is easy to be interfered by external vibration, so that detection of the inclinometer is affected.
Disclosure of Invention
In order to overcome the defects, the invention aims to provide a slope geotechnical engineering monitoring system which is safe and reliable and accurate in measurement.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a slope geotechnical engineering monitoring system, includes vibrating wire formula multichannel collection appearance, soil pressure box, anchor rope meter, seam meter, stay-supported displacement meter, inclinometer, rain gauge and treater, and the surface displacement information of slope that the stay-supported displacement meter detected and with information transfer give the treater, the rainfall information under the slope place environment that the rain gauge detected and with information transfer give the treater, the treater is interactive with vibrating wire formula multichannel collection appearance, vibrating wire formula multichannel collection appearance is used for gathering: the soil pressure information of the side slope detected by the soil pressure box, the anchor rod internal force in the side slope detected by the anchor cable meter, the crack information of the side slope detected by the seam meter and the soil body deep horizontal displacement information of the side slope detected by the inclinometer; the anti-deformation fixing device of the joint meter comprises a T-shaped fixing seat, a protection 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 protection pipe are arranged in a T-shaped groove of a side slope rock soil, one end of the protection 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, the T-shaped groove is filled with a filler, one end of the transverse arc-shaped supporting plate is connected with the lower side edge of the other end of the protection pipe, the other end of the transverse arc-shaped supporting plate extends into the side 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 side slope concrete layer, and one end of the joint meter extends into the protection pipe to be in threaded connection with a fixing screw hole on the T-shaped fixing seat.
Further, the top side of the left support vertical plate and the top side of the right support vertical plate are respectively provided with an arc groove, and the seam gauges are supported in the arc grooves on the left support vertical plate and the right support vertical plate.
Further, the fixing device of the anchor rope meter is further included, the fixing device of the anchor rope meter comprises a threaded anchor rod, a pressure-bearing left base plate, a pressure-bearing right base plate, a supporting frame, a tensioning device, a primary locking nut, a secondary locking nut and a tertiary locking nut, one end of the threaded anchor rod is anchored in the slope rock soil, the other end of the threaded anchor rod sequentially penetrates through a buttress on the side wall of the slope rock soil retaining wall, the pressure-bearing left base plate, the anchor rope meter, the pressure-bearing right base plate and the supporting frame and then is connected with the tensioning device, the tensioning device stretches the threaded anchor rod, and when the pressure exceeds 13% of rated pressure of the anchor rope meter, the threaded anchor rod is locked and fixed through the primary locking nut, the secondary locking nut and the tertiary locking nut which are arranged in the supporting frame. The accuracy of the anchor rope meter can be improved.
Further, the edge of the pressure-bearing left backing 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 backing plate, the anchor cable gauge is positioned 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 gauge to be in full contact with the plate of the pressure-bearing left backing plate and protecting the anchor cable gauge.
Further, the soil pressure box is provided with 4 fixing devices and further comprises a soil pressure box fixing device, the soil pressure box fixing device comprises a supporting frame, 4 limiting sleeves and a tightening screw, the supporting frame is provided with step-shaped step surfaces, the 4 limiting sleeves are respectively arranged on the 4 step-shaped step surfaces in an upward opening mode and are respectively welded with the 4 step-shaped step surfaces, the 4 soil pressure boxes are respectively arranged in the 4 limiting sleeves, stress sensing plates of the soil pressure boxes face upwards, and the height of the limiting sleeves is smaller than the thickness of the soil pressure box; screw holes are formed in the side walls of the limiting sleeves, and the jacking screws penetrate through the screw holes to jack the soil pressure boxes tightly.
Further, the pull-wire type displacement meter is provided with two pull wires, and the pull wire on one pull-wire type displacement meter is connected with the pull wire on the other pull-wire type displacement meter.
Further, the fixing device of the stay wire type displacement meter comprises a concrete prefabricated seat A, a concrete prefabricated seat B, a protection pipe, screws and nuts, wherein the nuts are 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 buried in the slope rock soil, the protection pipe is arranged on the surface of the slope and is positioned between the concrete prefabricated seat A and the concrete prefabricated seat B, the screws penetrate through mounting holes on the stay wire type displacement meter to be connected with the nuts, the two stay wire type displacement meters are respectively fixed on the concrete prefabricated seat A and the concrete prefabricated seat B, and stay wires of the stay wire type displacement meter on the concrete prefabricated seat A penetrate through the protection pipe to be connected with stay wires of the stay wire type displacement meter on the concrete prefabricated seat B.
Further, still include the fixing device of inclinometer, including cylindric fixed pipe, lifting rope, damping tubular column, bottom and permanent magnetism piece, the last port of damping tubular column is sealed, and the lower port is opened, is equipped with annular boss on the internal face of damping tubular column, be equipped with annular PE foam damping seat and hoist and mount dish in the damping tubular column, the hoist and mount dish supports on annular PE foam damping seat, annular PE foam damping seat support on annular boss, the upper end of cylindric fixed pipe is pegged graft in the lower port of damping tubular column, and makes annular boss support in cylindric fixed pipe's upper end, a plurality of inclinometer be located cylindric fixed pipe and concatenate in proper order through the lifting rope, wherein, the inclinometer of top is connected with the one end of lifting rope, and the other end of lifting rope stretches into in the damping tubular column and passes annular PE foam damping seat and hoist and mount dish bottom surface central part, the inclinometer of below is fixed by permanent magnetism piece to keep the interval between inclinometer and the permanent magnetism piece of below, the bottom is fixed in the bottom thread piece is connected with the bottom of drum.
Further, the thickness of the annular PE foam vibration reduction seat is 5cm.
Further, the rain gauge is a siphon rain gauge, a weighing rain gauge or a tipping bucket rain gauge.
The invention has the beneficial effects that:
firstly, because the anti-deformation fixing device of the joint meter is adopted, the joint meter which is horizontally placed can be effectively supported, a good supporting and protecting effect is achieved on the joint meter, the torque resistance is greatly improved, the joint meter is more firmly installed, the problem that the joint meter is deformed and invalid due to the vibrating construction of a slope concrete layer after the joint meter is installed is solved, and the joint meter has the characteristics of safety, reliability and accurate measurement;
secondly, when the pressure exceeds 13% of the rated pressure of the anchor rope meter, the anchor rope meter is locked and fixed through the primary locking nut, the secondary locking nut and the tertiary locking nut which are arranged on the threaded anchor rod and in the supporting frame, so that the locking and fixing effect of the anchor rod is improved, and the measuring accuracy of the anchor rope meter is also improved;
thirdly, as the C-shaped limiting guide sleeve is additionally arranged at the edge of the pressure-bearing left base plate, the end face of the anchor rope meter is in full contact with the plate of the pressure-bearing left base plate, the installation efficiency is greatly improved, the bearing surface of the anchor rope meter is more uniformly stressed, the phenomenon that the anchor rope meter is deviated due to uneven stress is effectively prevented, the C-shaped limiting guide sleeve can also shield the anchor rope meter from wind and rain, a certain protection effect is achieved, and the anti-aging anchor rope meter has the characteristics of being long in service life;
fourthly, as the soil pressure box is supported on the step-shaped step surface of the support frame, the stress sensing plate of the soil pressure box is always in an upward state, so that the stress sensing plate of the soil pressure box is mutually perpendicular to the soil pressure direction, and the detection precision of the soil pressure is improved;
fifthly, due to the double functions of the limiting sleeve and the jacking screw, the soil pressure box is firmly fixed, so that 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;
sixthly, because two stay wire type displacement meters are adopted, and stay wires of the two stay wire type displacement meters are in butt joint, when the vibration wire type multichannel acquisition instrument is used, the two stay wire type displacement meters transmit data to the vibration wire type multichannel acquisition instrument at the same time, the sum of the data of the two stay wire type displacement meters is the displacement of a side slope, the butt joint design of the two stay wire type displacement meters greatly improves the safety and the reliability of equipment, and when one displacement meter has a problem, the other displacement meter can work normally, and the effectiveness of displacement detection is ensured;
seventh, because of adopting the concrete prefabricated seat and the structural style of the slope surface flush, solve the fixed point of the stay wire and stay wire displacement gauge are higher from the ground because of adopting the bracing piece in the prior art, when disasters such as the earthquake occur, the problem that the stay wire displacement gauge is easy to lose efficacy; especially, the protection tube is additionally arranged, so that the pull wire is well protected, the problem that peripheral sundries break off the pull wire is avoided, and the effectiveness of displacement detection is further ensured;
eighth, because the vibration-damping pipe column is additionally arranged on the fixing device of the inclinometer, a plurality of inclinometers connected in series are hung on the vibration-damping pipe column, and the mechanical vibration generated by the surrounding environment is weakened by the vibration-damping pipe column, the influence of external mechanical vibration on the inclinometers is greatly reduced; especially, the structural design of the vibration damping pipe column has the characteristics of good vibration damping effect and simple structure.
Drawings
The invention will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the invention, and other drawings can be obtained by one skilled in the art without inventive effort from the following figures:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic structural view of a deformation-preventing fixing device of the seam gauge shown in FIG. 1;
FIG. 3 is a schematic view of the structure of the lateral arc-shaped support plate shown in FIG. 2;
fig. 4 is a schematic view of the anchor line meter 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 the view shown in FIG. 5;
FIG. 7 is a schematic structural view of a fixing device of the soil pressure box shown in FIG. 1;
FIG. 8 is a schematic structural view of a fixing device of the pull-wire 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 multichannel acquisition instrument; 3. A soil pressure box; 4. An anchor cable gauge; 5. A seam gauge; 6. a pull-wire type displacement meter; 7. an inclinometer; 8. a rain gauge; 9. a T-shaped fixing seat; 10. a protective tube; 11. a left support vertical plate; 12. a right support riser; 13. a transverse arc-shaped supporting plate; 14. a T-shaped groove; 15. an expansion screw; 16. slope rock soil; 17. a side slope concrete layer; 18. fixing the screw holes; 19. an arc groove; 20. a threaded anchor rod; 21. a pressure-bearing left backing plate; 22. a right bearing plate; 23. a support frame; 24. a tensioning device; 25. a primary lock nut; 26. a secondary lock nut; 27. a three-stage locking nut; 28. a buttress; 29. c-shaped limiting guide sleeve; 30. a support frame; 31. a limit sleeve; 32. tightly pushing the screw; 33. step ladder type step surface; 34. a screw hole; 35. a concrete prefabricated seat A; 36. a concrete prefabricated seat B; 37. a protective tube; 38. a screw; 39. a nut; 40. a cylindrical fixed tube; 41. a hanging rope; 42. 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 the disc; 48. lifting lugs.
Detailed Description
In order to better understand the technical solutions of the present invention, the following description will be made in detail with reference to the accompanying drawings and specific embodiments, and it should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
As shown in fig. 1, a slope geotechnical engineering monitoring system comprises a vibrating wire type multi-channel acquisition instrument 2, a soil pressure box 3, an anchor cable meter 4, a seam meter 5, a stay wire type displacement meter 6, an inclinometer 7, a rain gauge 8 and a processor 1, wherein the stay wire type displacement meter 6 is used for detecting surface displacement information of a slope and transmitting the information to the processor 1, the rain gauge 8 is used for detecting rainfall information in the environment where the slope is located and transmitting the information to the processor 1, the processor 1 is interacted with the vibrating wire type multi-channel acquisition instrument 2, and the vibrating wire type multi-channel acquisition instrument 2 is used for acquiring: the soil pressure information of the side slope detected by the soil pressure box 3, the anchor rod internal force in the side slope detected by the anchor rope meter 4, the crack information of the side slope detected by the seam meter 5 and the soil deep horizontal displacement information of the side slope detected by the inclinometer 7;
as shown in fig. 2, the anti-deformation fixing device of the joint gauge further comprises a T-shaped fixing seat 9, a protection pipe 10, a left support vertical plate 11, a right support vertical plate 12 and a transverse arc-shaped support plate 13, wherein the T-shaped fixing seat 9 and the protection pipe 10 are arranged in a T-shaped groove 14 of a slope rock soil 16, one end of the protection pipe 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 with filler and sealed, one end of the transverse arc-shaped support plate 13 is connected with the lower side edge of the other end of the protection pipe 10, the other end of the transverse arc-shaped support plate 13 extends into a slope concrete layer 17, the joint gauge 5 is supported on the left support vertical plate 11 and the right support vertical plate 12, the left support vertical plate 11 and the right support vertical plate 12 are fixed on the transverse arc-shaped support screw hole 13 and are positioned in the slope concrete layer 17, and one end of the joint gauge 5 extends into the protection pipe 10 to be in threaded connection with a fixing 18 on the T-shaped fixing seat 9. The transverse arc-shaped supporting plate 13 can effectively support the horizontally placed seam meter, plays a good supporting and protecting role on the seam meter, greatly improves the torque resistance, ensures that the seam meter is more firmly installed, and solves the problem that the seam meter is deformed and invalid due to the vibrating construction of a side slope concrete layer after the seam meter is installed.
As shown in fig. 3, the top side of the left support vertical plate 11 and the top side of the right support vertical plate 12 are provided with circular arc grooves 19, and the joint gauge 5 is supported in the circular arc grooves 19 on the left support vertical plate 11 and the right support vertical plate 12.
As shown in fig. 4, 5 and 6, the fixing device of the anchor rope meter is further included, the fixing device of the anchor rope meter comprises a threaded anchor rod 20, a pressure-bearing left base plate 21, a pressure-bearing right base plate 22, a supporting frame 23, a tensioning device 24, a primary locking nut 25, a secondary locking nut 26 and a tertiary locking nut 27, one end of the threaded anchor rod 20 is anchored into the slope rock soil 16, the other end of the threaded anchor rod sequentially penetrates through a buttress 28 on the side wall of the slope rock soil retaining wall, the pressure-bearing left base plate 21, the anchor rope meter 4, the pressure-bearing right base plate 22 and the supporting frame 23 and then is connected with the tensioning device 24, the tensioning device 24 stretches the threaded anchor rod 20, and when the pressure exceeds 13% of the rated pressure of the anchor rope meter 4, the primary locking nut 25, the secondary locking nut 26 and the tertiary locking nut 27 which are positioned in the supporting frame 23 on the threaded anchor rod 20 are locked and fixed, so that the locking and fixing effect of the anchor rod is improved, and the measuring accuracy of the anchor rope meter is also improved.
The edge of the pressure-bearing left backing 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 backing plate 21, and the anchor cable gauge 4 is positioned 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 rope meter to be in full contact with the plate of the pressure-bearing left base plate, is favorable for enabling the end face of the anchor rope meter to be in full contact with the plate of the pressure-bearing left base plate, enables the bearing surface of the anchor rope meter to be more uniform in stress, effectively prevents the phenomenon that the anchor rope meter is deviated due to uneven stress, and can also shield the anchor rope meter from wind and rain to play a certain role in protection.
As shown in fig. 7, the soil pressure boxes 3 are provided with 4 fixing devices of the soil pressure boxes, the fixing devices of the soil pressure boxes comprise a supporting frame 30, 4 limiting sleeves 31 and a tightening screw 32, the supporting frame 30 is provided with step-shaped step surfaces 33, the 4 limiting sleeves 31 are respectively arranged on the 4 step-shaped step surfaces 33 in an upward opening manner and are respectively welded with the 4 step-shaped step surfaces 33, the 4 soil pressure boxes 3 are respectively arranged in the 4 limiting sleeves 31, stress sensing plates of the soil pressure boxes are upward, and the height of the limiting sleeves 31 is smaller than the thickness of the soil pressure boxes 3; screw holes 34 are formed in the side walls of the limiting sleeves 31, and the jacking screws 32 penetrate through the screw holes 34 to jack the soil pressure boxes 3 tightly. Because the soil pressure box is supported on the step-shaped step surface of the support frame, the stress sensing plate of the soil pressure box is always in an upward state, and the stress sensing plate of the soil pressure box is mutually perpendicular to the soil pressure direction, so that the detection precision of the soil pressure is improved. Due to the double 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 a stay wire on one stay wire type displacement meter is connected with a stay wire on the other stay wire type displacement meter. When the device is used, the two stay wire type displacement meters transmit data to the vibrating wire type multichannel acquisition instrument simultaneously, the sum of the data of the two stay wire type displacement meters is the displacement of the side slope, the two stay wire type displacement meters are in butt joint, so that the safety and the reliability of the device are greatly improved, when one displacement meter is in a problem, the other displacement meter can work normally, and the effectiveness of displacement detection is ensured.
Specifically, the fixing device of the stay wire type displacement meter comprises a concrete prefabricated seat A35, a concrete prefabricated seat B36, a protection pipe 37, screws 38 and nuts 39, wherein the nuts 39 are 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 buried 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 protection pipe 37 is arranged on the surface of the side slope and is positioned between the concrete prefabricated seat A35 and the concrete prefabricated seat B36, the screws 38 penetrate through mounting holes on the stay wire type displacement meter 6 and are connected with the nuts 39, the stay wires of the two stay wire type displacement meters 6 on the concrete prefabricated seat A35 and the concrete prefabricated seat B36 are respectively fixed, and the stay wires of the stay wire type displacement meter 6 on the concrete prefabricated seat A35 penetrate through the protection pipe 37 and are connected with stay wires of the stay wire type displacement meter 6 on the concrete prefabricated seat B36. The concrete prefabricated seat is flush with the side slope surface, so that the problems that in the prior art, due to the adoption of the supporting rods, the stay wire fixing point and the stay wire type displacement meter are higher away from the ground, and the stay wire type displacement meter is easy to fail when disasters such as earthquakes occur are solved; especially, this patent has still add the protective tube, has played fine guard action to acting as go-between, has avoided peripheral debris to break the problem of acting as go-between to further ensured displacement detection's validity.
As shown in fig. 9, the fixing device of the inclinometer further comprises a cylindrical fixing tube 40, a lifting rope 41, a vibration reduction tube column 42, a bottom cover 43 and a permanent magnet block 44, wherein the upper port of the vibration reduction tube column 42 is closed, the lower port of the vibration reduction tube column 42 is open, an annular boss 45 is arranged on the inner wall surface of the vibration reduction tube column 42, an annular PE foam vibration reduction seat 46 and a lifting disc 47 are arranged in the vibration reduction tube column 42, the lifting disc 47 is supported on the annular PE foam vibration reduction seat 46, the annular PE foam vibration reduction seat 46 is supported on the annular boss 45, and the thickness of the annular PE foam vibration reduction 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, a plurality of inclinometers 7 are positioned in the cylindrical fixed pipe 40 and are sequentially connected in series through a lifting rope 41, wherein the uppermost inclinometers 7 are connected with one end of the lifting rope 41, the other end of the lifting rope 41 stretches into the vibration damping pipe column 42 and passes through an annular PE foam vibration damping seat 46 to be connected with a lifting lug 48 at the central part of the bottom surface of the lifting disc 47, the lowermost inclinometers 7 are magnetically attracted and fixed by a permanent magnet 44, a space is reserved between the lowermost inclinometers 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 vibration reduction pipe column is additionally arranged on the fixing device of the inclinometer, the plurality of inclinometers connected in series are hung on the vibration reduction pipe column, mechanical vibration generated by the surrounding environment is weakened by the vibration reduction pipe column, and the influence of external mechanical vibration on the inclinometers is greatly reduced; especially, the structural design of the vibration damping pipe column has the characteristics of good vibration damping effect and simple structure.
The rain gauge 8 is a siphon rain gauge, a weighing rain gauge or a skip rain gauge.
The slope geotechnical engineering monitoring system is characterized in that the deformation mechanism of the slope is deeply known through slope safety monitoring, so that feedback is provided for geological disaster protection and reinforcement treatment, and related information is acquired on the influence of engineering and the like; by monitoring and analyzing the data, various characteristic information of the slope deformation is obtained, the dynamic change rule is analyzed, the possible damage of the slope engineering is predicted, and a scientific basis is provided for disaster prevention and reduction. The automatic monitoring system for the side slope can realize automatic uploading and report pushing, real-time monitoring for 24 hours, ensure that the construction and operation period of the side slope engineering are all in the range of real-time monitoring, and exert the economic benefit of the side slope engineering to the greatest extent.
The foregoing embodiments are merely illustrative of the present invention and are not intended to limit the spirit and scope of the present invention, and those of ordinary skill in the art should not depart from the spirit and scope of the present invention as set forth in the appended claims.
Claims (4)
1. The utility model provides a side slope geotechnical engineering monitoring system which characterized in that: including vibrating wire type multichannel collection appearance, soil pressure box, anchor rope meter, seam meter, stay-supported displacement meter, inclinometer, rain gauge and treater, the surface displacement information of the side slope that the stay-supported displacement meter detected and with information transfer give the treater, the rain volume information under the side slope that the rain gauge detected was located the environment and with information transfer give the treater, the treater is interactive with vibrating wire type multichannel collection appearance, vibrating wire type multichannel collection appearance is used for gathering: the soil pressure information of the side slope detected by the soil pressure box, the anchor rod internal force in the side slope detected by the anchor cable meter, the crack information of the side slope detected by the seam meter and the soil body deep horizontal displacement information of the side slope detected by the inclinometer; the anti-deformation fixing device of the joint gauge comprises a T-shaped fixing seat, a protection 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 protection pipe are arranged in a T-shaped groove of a side slope rock soil, one end of the protection 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, the T-shaped groove is filled with filler and sealed, one end of the transverse arc-shaped supporting plate is connected with the lower side edge of the other end of the protection pipe, the other end of the transverse arc-shaped supporting plate extends into the side slope concrete layer, the joint gauge 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 positioned in the side slope concrete layer, and one end of the joint gauge extends into the protection pipe to be in threaded connection with a fixing screw hole on the T-shaped fixing seat;
the top sides of the left support vertical plate and the right support vertical plate are respectively provided with an arc groove, and the seam gauges are supported in the arc grooves on the left support vertical plate and the right support vertical plate;
the fixing device of the anchor rope meter comprises a threaded anchor rod, a pressure-bearing left base plate, a pressure-bearing right base plate, a support frame, a tensioning device, a primary locking nut, a secondary locking nut and a tertiary locking nut, one end of the threaded anchor rod is anchored into the slope rock soil, the other end of the threaded anchor rod sequentially penetrates through a buttress on the side wall of the slope rock soil retaining wall, the pressure-bearing left base plate, the anchor rope meter, the pressure-bearing right base plate and the support frame and then is connected with the tensioning device, the tensioning device stretches the threaded anchor rod, and when the pressure exceeds 13% of rated pressure of the anchor rope meter, the threaded anchor rod is locked and fixed through the primary locking nut, the secondary locking nut and the tertiary locking nut which are arranged on the threaded anchor rod and in the support frame;
the edge of the pressure-bearing left backing 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 backing plate, the anchor cable gauge is positioned 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 gauge to be in full contact with the plate of the pressure-bearing left backing plate and protecting the anchor cable gauge;
the soil pressure box is provided with 4 soil pressure boxes and also comprises a fixing device of the soil pressure boxes, wherein the fixing device of the soil pressure boxes comprises a support frame, 4 limit sleeves and a tightening screw, a step ladder type step surface is arranged on the support frame, the 4 limit sleeves are respectively arranged on the 4 step ladder type step surfaces in an upward opening manner and are respectively welded with the 4 step ladder type step surfaces, the 4 soil pressure boxes are respectively arranged in the 4 limit sleeves, a stress sensing plate of each soil pressure box faces upwards, and the height of each limit sleeve is smaller than the thickness of each soil pressure box; screw holes are formed in the side walls of the limiting sleeves, and jacking screws penetrate through the screw holes to jack the soil pressure boxes tightly;
the fixing device of the stay wire type displacement meter comprises a concrete prefabricated seat A, a concrete prefabricated seat B, a protection pipe, screws and nuts, wherein the nuts are 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 buried in the rock soil of the side slope, the concrete prefabricated seat A and the concrete prefabricated seat B are flush with the surface of the side slope, the protection pipe is arranged on the surface of the side slope and is positioned between the concrete prefabricated seat A and the concrete prefabricated seat B, the screws penetrate through mounting holes on the stay wire type displacement meter to be connected with the nuts, the two stay wire type displacement meters are respectively fixed on the concrete prefabricated seat A and the concrete prefabricated seat B, and stay wires of the stay wire type displacement meter on the concrete prefabricated seat A penetrate through the protection pipe to be connected with stay wires of the stay wire type displacement meter on the concrete prefabricated seat B;
the fixing device of the inclinometer comprises a cylindrical fixing tube, a lifting rope, a vibration reduction tube column, a bottom cover and permanent magnets, wherein the upper port of the vibration reduction tube column is closed, the lower port of the vibration reduction tube column is opened, an annular boss is arranged on the inner wall surface of the vibration reduction tube column, an annular PE foam vibration reduction seat and a lifting disc are arranged in the vibration reduction tube column, the lifting disc is supported on the annular PE foam vibration reduction seat, the annular PE foam vibration reduction seat is supported on the annular boss, the upper end of the cylindrical fixing tube is inserted into the lower port of the vibration reduction tube column, the annular boss is supported at the upper end of the cylindrical fixing tube, a plurality of inclinometers are positioned in the cylindrical fixing tube column and are sequentially connected in series through the lifting rope, the uppermost inclinometers are connected with one end of the lifting rope, the other end of the lifting rope stretches into the vibration reduction tube column and penetrates through the annular PE foam vibration reduction seat to be connected with the central part of the bottom surface of the lifting disc, the lowermost inclinometers are magnetically sucked and fixed by the permanent magnets, a space is reserved between the lowermost inclinometers and the permanent magnets, the upper end of the cylindrical fixing tube is fixed on the cylindrical boss, and the cylindrical fixing tube is fixed at the upper end of the cylindrical fixing tube.
2. The slope geotechnical engineering monitoring system according to claim 1, wherein: the pull-wire type displacement meters are two, and the pull wire on one pull-wire type displacement meter is connected with the pull wire on the other pull-wire type displacement meter.
3. The slope geotechnical engineering monitoring system according to claim 1, wherein: the thickness of the annular PE foam vibration reduction seat is 5cm.
4. The slope geotechnical engineering monitoring system according to claim 1, wherein: the rain gauge is a siphon rain gauge, a weighing rain gauge or a tipping bucket rain gauge.
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