CN117109528A - Device and method for monitoring settlement deformation in high-fill roadbed - Google Patents
Device and method for monitoring settlement deformation in high-fill roadbed Download PDFInfo
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- CN117109528A CN117109528A CN202311351394.0A CN202311351394A CN117109528A CN 117109528 A CN117109528 A CN 117109528A CN 202311351394 A CN202311351394 A CN 202311351394A CN 117109528 A CN117109528 A CN 117109528A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 85
- 230000007246 mechanism Effects 0.000 claims abstract description 81
- 230000001360 synchronised effect Effects 0.000 claims abstract description 39
- 239000002689 soil Substances 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 238000012806 monitoring device Methods 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000005429 filling process Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 5
- 238000010168 coupling process Methods 0.000 claims 5
- 238000005859 coupling reaction Methods 0.000 claims 5
- 238000010276 construction Methods 0.000 abstract description 8
- 238000004062 sedimentation Methods 0.000 description 17
- 238000005457 optimization Methods 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
Abstract
The invention relates to the technical field of roadbed settlement observation, and discloses a device and a method for monitoring settlement deformation in a high-fill roadbed, wherein the device for monitoring settlement deformation in the high-fill roadbed comprises a bottom support pipeline, an inclination angle detection mechanism, a spliced connecting assembly, a settlement amount detection mechanism and a synchronous settlement assembly; the inclination angle detection mechanism adopted by the invention can accurately acquire the settlement and the offset of the synchronous settlement assembly at the corresponding position in the roadbed, the detected offset is the influence factor generated by the whole spliced connecting assembly, the settlement detection mechanism and the synchronous settlement assembly due to the roadbed area between the inclination angle detection mechanism and the synchronous settlement assembly, the longitudinal settlement comprehensive parameter of the detection position can be effectively improved, the real settlement parameter of the detection position is more met, the influence on the subsequent roadbed construction is avoided, and the settlement parameters of the roadbed are collected sustainably.
Description
Technical Field
The invention relates to the technical field of roadbed settlement observation, in particular to a device and a method for monitoring settlement deformation in a high-fill roadbed.
Background
The high-fill roadbed is constructed by adopting a layered filling and layered compacting method, the filling thickness of each layer is determined according to the adopted filling, the settlement and stable observation of the roadbed are indispensable links in roadbed construction, and the roadbed stability can be ensured by controlling the filling rate through the observation data on one hand, and meanwhile, the high-efficiency roadbed construction can be carried out; on the other hand, the settlement deformation rule of the roadbed can be deduced by utilizing the observation data so as to verify whether the design requirement can be met.
At present, various methods for sedimentation and stable observation are mainly divided into vertical displacement observation and horizontal displacement observation. The common methods for vertical settlement observation include methods of monitoring piles, settlement cups, settlement plates and the like; the horizontal displacement monitoring method mainly comprises side piles for observing the horizontal displacement of the earth surface, inclinometers for observing the horizontal displacement of the depth of the soil body and the like.
The settlement plate consists of a steel bottom plate, a metal measuring rod and a protection sleeve rod, wherein the steel bottom plate is buried in a roadbed or foundation, the metal measuring rod and the protection sleeve rod can be connected with the roadbed along with construction, and the settlement of the top end of the measuring rod, namely the settlement of the buried position of the steel bottom plate, can be measured by using a water level measuring method.
However, at present, most of common vertical sedimentation equipment can only detect sedimentation quantity, cannot accurately acquire complicated sedimentation, offset and other parameters in a road base, detection data are limited to an area where a sedimentation plate is located, errors are easy to generate, in subsequent construction of a roadbed, the construction is affected, and continuous monitoring of the sedimentation parameters of the road base cannot be performed in the subsequent process.
Disclosure of Invention
The invention aims to solve the problems and provide a device and a method for monitoring settlement deformation in a high-fill subgrade.
The invention provides a high-fill roadbed internal settlement deformation monitoring device, which comprises a bottom support pipeline arranged on a foundation, a plurality of inclination angle detection mechanisms detachably connected to the bottom support pipeline, a spliced connecting component connected to the inclination angle detection mechanisms, a settlement amount detection mechanism connected to the spliced connecting component and a synchronous settlement component connected to the settlement amount detection mechanism, wherein the spliced connecting component is used for adjusting the distance between the settlement amount detection mechanism and the inclination angle detection mechanism, the settlement amount detection mechanism is used for detecting the moving distance of the synchronous settlement component towards the inclination angle detection mechanism, and the inclination angle detection mechanism is used for detecting the inclination direction of the spliced connecting component and the inclination angle between the spliced connecting component and the horizontal plane;
the inclination detection mechanism comprises a reference component, an inclination component arranged in the reference component, a data detection mechanism connected to the inclination component and an initial limit component arranged in the reference component, wherein the initial limit component is detachably connected with the inclination component, the inclination component is perpendicular to a horizontal plane when roadbed is not filled with soil, the inclination component is detachably connected with a splicing type connecting component, the data detection mechanism is used for detecting the inclination direction of the inclination component and the inclination included angle between the inclination component and the horizontal plane, and the reference component, the inclination component, the splicing type connecting component, the settlement amount detection mechanism and the synchronous settlement component are coaxially arranged.
As a further optimization scheme of the invention, the reference component comprises a positioning base, a spherical deflection groove arranged at the upper end of the positioning base and a mounting cavity arranged in the positioning base, wherein the mounting cavity is communicated with the spherical deflection groove, the initial limiting component is arranged in the mounting cavity, and one end of the initial limiting component extends into the spherical deflection groove and is detachably connected with the tilting component.
As a further optimization scheme of the invention, the tilting assembly comprises a residual spherical limit bracket, a plurality of balls movably connected to the residual spherical limit bracket, and a deflection shaft body fixedly connected to the middle position of the residual spherical limit bracket, wherein the center of the residual spherical limit bracket coincides with the center of the spherical deflection groove, and the balls are all in contact with the inner wall of the spherical deflection groove.
As a further optimization scheme of the invention, a limit ring groove is arranged at the position, close to the bottom, of the inner wall of the spherical deflection groove, the limit ring groove is matched with the ball, and a flexible sealing protective sleeve is connected between the positioning base and the deflection shaft body.
As a further optimization scheme of the invention, the initial limiting assembly comprises a hydraulic telescopic rod arranged in the installation cavity and a liquid guide tube connected to the hydraulic telescopic rod, a limiting square hole matched with the output end of the hydraulic telescopic rod is arranged at the bottom of the deflection shaft body, the other end of the liquid guide tube penetrates through the installation cavity and extends into the bottom support pipeline, and the part of the liquid guide tube in the bottom support pipeline is distributed along the length direction of the bottom support pipeline.
As a further optimization scheme of the invention, the data detection mechanism comprises a gyroscope sensor connected to the bottom of the deflection shaft body and a spiral telescopic cable connected to the gyroscope sensor, wherein the other end of the spiral telescopic cable penetrates through the mounting cavity and extends into the bottom support pipeline, and the part of the spiral telescopic cable in the bottom support pipeline is distributed along the length direction of the bottom support pipeline.
As a further optimization scheme of the invention, the spliced connecting assembly comprises a plurality of middle connecting pipes which are connected end to end, two ends of each middle connecting pipe are respectively provided with matched external threads and internal threads, the upper end of the deflection shaft body is provided with a connecting groove, and the opening of the connecting groove is provided with internal threads.
As a further optimization scheme of the invention, the settlement amount detection mechanism comprises a first connecting pipe, a telescopic corrugated pipe connected to the first connecting pipe, a second connecting pipe connected to the telescopic corrugated pipe, a plurality of multi-section telescopic rods connected between the first connecting pipe and the second connecting pipe, a spring, a range finder arranged in a connecting groove, wiring perforations arranged in a deflection shaft body and communicated with the connecting groove, and a data transmission cable connected to the range finder, wherein the spring is wrapped on the periphery of the plurality of multi-section telescopic rods, the telescopic corrugated pipe is wrapped on the periphery of the spring, the other end of the data transmission cable sequentially penetrates through a spherical deflection groove, a mounting cavity and extends into a bottom support pipeline, and the part of the data transmission cable in the bottom support pipeline is distributed along the length direction of the bottom support pipeline.
As a further optimized scheme of the invention, the synchronous sedimentation assembly comprises a third connecting pipe detachably connected to the second connecting pipe and a sedimentation plate fixedly connected to the third connecting pipe.
The method for monitoring the settlement deformation of the interior of the high-fill roadbed adopts the device for monitoring the settlement deformation of the interior of the high-fill roadbed, and comprises the following steps:
before roadbed filling is carried out, laying a bottom support pipeline, and installing an inclination angle detection mechanism at a set position on the bottom support pipeline;
the splicing type connecting components with corresponding lengths are selected according to the corresponding monitoring heights of the positions of the inclination angle detection mechanisms, and the splicing type connecting components are used for connecting the sections in the soil filling process;
connecting a settlement amount detection mechanism on the spliced connecting assembly, connecting a synchronous settlement assembly on the settlement amount detection mechanism, and then continuing to fill the soil until the filling of the soil is completed;
the initial limiting component is controlled to be disconnected with the tilting component, so that the tilting component is not limited any more, the tilting direction of the tilting component and the degree of an included angle between the tilting component and the horizontal plane are detected through the data detection component at a set time point, and the settlement amount and the offset distance of the corresponding synchronous settlement component are calculated.
The invention has the beneficial effects that: the inclination angle detection mechanism adopted by the invention can accurately acquire the settlement and the offset of the synchronous settlement assembly at the corresponding position in the roadbed, the detected offset is the influence factor generated by the whole spliced connecting assembly, the settlement detection mechanism and the synchronous settlement assembly due to the roadbed area between the inclination angle detection mechanism and the synchronous settlement assembly, the longitudinal settlement comprehensive parameter of the detection position can be effectively improved, the real settlement parameter of the detection position is more met, the influence on the subsequent roadbed construction is avoided, and the settlement parameters of the roadbed are collected sustainably.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a view showing the cooperation of the inclination angle detection mechanism and the settlement amount detection mechanism according to the present invention;
FIG. 3 is an enlarged view of the invention at A in FIG. 2;
FIG. 4 is an enlarged view of the invention at B in FIG. 2;
FIG. 5 is an enlarged view of the present invention at C in FIG. 2;
fig. 6 is a schematic perspective view of the tilt angle detecting mechanism of the present invention.
In the figure: 1. a bottom support pipe; 2. an inclination angle detection mechanism; 201. positioning a base; 202. a spherical deflection groove; 203. a mounting chamber; 204. a residual sphere limiting bracket; 205. a deflection shaft body; 2050. limiting square holes; 2051. wiring perforation; 2052. a data transmission cable; 2053. a connecting groove; 206. a ball; 207. a gyro sensor; 208. a spiral telescopic cable; 209. a limit ring groove; 210. a catheter; 211. a flexible sealing protective sleeve; 212. a range finder; 213. a hydraulic telescopic rod; 3. a middle connecting pipe; 4. a settlement amount detection mechanism; 401. a first connection pipe; 402. a bellows; 403. a second connection pipe; 404. a multi-section telescopic rod; 405. a spring; 5. a synchronous sedimentation assembly; 501. a third connection pipe; 502. a sedimentation plate.
Detailed Description
The subject matter described herein will now be discussed with reference to example embodiments. It is to be understood that these embodiments are merely discussed so that those skilled in the art may better understand and implement the subject matter described herein and that changes may be made in the function and arrangement of the elements discussed without departing from the scope of the disclosure herein. Various examples may omit, replace, or add various procedures or components as desired. In addition, features described with respect to some examples may be combined in other examples as well.
As shown in fig. 1-2, the settlement deformation monitoring device for the high-fill subgrade comprises a bottom support pipeline 1 arranged on a foundation, a plurality of inclination angle detection mechanisms 2 detachably connected to the bottom support pipeline 1, a spliced connecting component connected to the inclination angle detection mechanisms 2, a settlement amount detection mechanism 4 connected to the spliced connecting component and a synchronous settlement component 5 connected to the settlement amount detection mechanism 4, wherein the spliced connecting component is used for adjusting the distance between the settlement amount detection mechanism 4 and the inclination angle detection mechanism 2, the settlement amount detection mechanism 4 is used for detecting the moving distance of the synchronous settlement component 5 towards the inclination angle detection mechanism 2, and the inclination angle detection mechanism 2 is used for detecting the inclination direction of the spliced connecting component and the inclination angle between the spliced connecting component and the horizontal plane;
the inclination detection mechanism 2 comprises a reference component, an inclination component arranged in the reference component, a data detection mechanism connected to the inclination component and an initial limit component arranged in the reference component, wherein the initial limit component is detachably connected with the inclination component, the inclination component is perpendicular to a horizontal plane when roadbed is not filled with soil, the inclination component is detachably connected with a spliced connecting component, the data detection mechanism is used for detecting the inclination direction of the inclination component and the inclination included angle between the inclination component and the horizontal plane, and the reference component, the inclination component, the spliced connecting component, the settlement amount detection mechanism 4 and the synchronous settlement component 5 are coaxially arranged.
Before the roadbed is filled, according to roadbed design parameters, the settlement parameter monitoring is needed to be carried out on an internal set area of the roadbed, so that the roadbed construction quality is improved, data parameters are provided for subsequent roadbed maintenance, a bottom support pipeline 1 is arranged on a foundation, and an inclination angle detection mechanism 2 is arranged at a set position on the bottom support pipeline 1; selecting splicing type connecting components with corresponding lengths according to the corresponding monitoring heights of the positions of each inclination angle detection mechanism 2, and connecting the segments of the splicing type connecting components in the process of filling soil; the settlement amount detection mechanism 4 is connected to the spliced connecting component, the synchronous settlement component 5 is connected to the settlement amount detection mechanism 4, and then the soil filling is continued until the soil filling is completed; the initial limiting assembly is controlled to be disconnected with the tilting assembly, so that the tilting assembly is not limited any more, at a set time point, the tilting direction of the tilting assembly and the degree of an included angle between the tilting assembly and the horizontal plane are detected through the data detection assembly, and the settlement amount and the offset distance of the corresponding synchronous settlement assembly 5 are calculated, wherein the tilting direction and the tilting angle of the tilting assembly are the tilting direction and the tilting angle of the splicing type connecting assembly, the settlement amount detection mechanism 4 and the tilting direction and the tilting angle of the synchronous settlement assembly 5, and the settlement amount detection mechanism 4 can acquire the settlement amount of the synchronous settlement assembly 5 towards the inclination angle detection mechanism 2.
As shown in fig. 2, 3, 4 and 6, the reference assembly comprises a positioning base 201, a spherical deflection groove 202 arranged at the upper end of the positioning base 201, and a mounting cavity 203 arranged in the positioning base 201, wherein the mounting cavity 203 is communicated with the spherical deflection groove 202, the initial limiting assembly is arranged in the mounting cavity 203, and one end of the initial limiting assembly extends into the spherical deflection groove 202 and is detachably connected with the tilting assembly;
the tilting assembly comprises a residual spherical limit bracket 204, a plurality of balls 206 movably connected to the residual spherical limit bracket 204, and a deflection shaft body 205 fixedly connected to the middle position of the residual spherical limit bracket 204, wherein the center of the residual spherical limit bracket 204 coincides with the center of the spherical deflection groove 202, and the balls 206 are in contact with the inner wall of the spherical deflection groove 202;
a limiting ring groove 209 is arranged at the position, close to the bottom, of the inner wall of the spherical deflection groove 202, the limiting ring groove 209 is matched with the ball 206, and a flexible sealing protective sleeve 211 is connected between the positioning base 201 and the deflection shaft body 205; the flexible sealing protective sleeve 211 can effectively prevent soil from entering the spherical deflection groove 202 during backfilling;
the initial limiting assembly comprises a hydraulic telescopic rod 213 installed in the installation cavity 203 and a liquid guide tube 210 connected to the hydraulic telescopic rod 213, a limiting square hole 2050 matched with the output end of the hydraulic telescopic rod 213 is formed in the bottom of the deflection shaft body 205, the other end of the liquid guide tube 210 penetrates through the installation cavity 203 and extends into the bottom support pipeline 1, and the part of the liquid guide tube 210 in the bottom support pipeline 1 is distributed along the length direction of the bottom support pipeline 1; the tilting assembly may be made to be in a vertical state in an initial state;
the data detection mechanism comprises a gyroscope sensor 207 connected to the bottom of the deflection shaft body 205, and a spiral telescopic cable 208 connected to the gyroscope sensor 207, wherein the other end of the spiral telescopic cable 208 penetrates through the installation cavity 203 and extends into the bottom support pipe 1, and the part of the spiral telescopic cable 208 in the bottom support pipe 1 is distributed along the length direction of the bottom support pipe 1.
It should be noted that, as described above, when the settlement amount of the synchronous settlement assembly 5 is monitored, the synchronous settlement assembly 5 is affected by the subgrade settlement, and synchronous settlement occurs, the settlement parameters include the settlement amount of the vertical horizontal plane and the deflection amount of the deflection vertical line, when no deflection occurs, the settlement amount of the vertical horizontal plane, that is, the distance variation amount between the synchronous settlement assembly 5 and the deflection detection mechanism 2, and when deflection occurs, the deflection detection mechanism 2 is required to perform data acquisition on the deflection direction and angle, the corresponding deflection amount and the corresponding settlement amount of the vertical horizontal plane can be calculated by combining the distance variation amount between the synchronous settlement assembly 5 and the deflection detection mechanism 2, the data acquisition process of the inclination direction and the inclination degree is as follows, when the synchronous settlement assembly 5 is only settled along the direction of the vertical horizontal plane, the corresponding settlement amount is acquired through the settlement amount detection mechanism 4, when deflection occurs, the synchronous settlement assembly 5 drives the settlement amount detection mechanism 4, the splicing connection assembly and the deflection assembly, in particular, the spherical ball joint 205 is driven by the spherical joint 205, and the spherical joint 205 is further moved to the limit groove 204, and the limit ball joint 204 is moved to the limit groove 204, and the limit ball joint is moved to the limit groove 204, but can reset, and in the deflection process of the deflection shaft body 205, the deflection direction and deflection angle of the deflection shaft body can be accurately known through the gyroscope sensor 207 connected with the bottom of the deflection shaft body, the settlement of the vertical horizontal plane and the deflection parallel to the horizontal plane can be obtained after calculation, the influence of foundation soil with different heights on the whole spliced connecting assembly in the roadbed is integrated on the deflection shaft body 205, the integral comprehensive settlement data of the corresponding area is obtained, and more accurate and comprehensive settlement data is provided for roadbed maintenance and research.
As shown in fig. 4 and 5, the spliced connecting assembly comprises a plurality of middle connecting pipes 3 connected end to end, two ends of each middle connecting pipe 3 are respectively provided with external threads and internal threads which are matched with each other, the upper end of the deflection shaft body 205 is provided with a connecting groove 2053, and the opening of the connecting groove 2053 is provided with internal threads.
When the position of the synchronous sedimentation assembly 5 is adjusted according to the actual height, the corresponding intermediate pipe 3 is added or subtracted, and the length of the intermediate pipe 3 can be manufactured according to the actual parameters.
As shown in fig. 5, the settlement amount detecting mechanism 4 comprises a first connection pipe 401, a bellows 402 connected to the first connection pipe 401, a second connection pipe 403 connected to the bellows 402, a plurality of multi-section type telescopic rods 404 connected between the first connection pipe 401 and the second connection pipe 403, a spring 405, a range finder 212 installed in a connection groove 2053, a wiring perforation 2051 provided in the deflection shaft body 205 and communicated with the connection groove 2053, and a data transmission cable 2052 connected to the range finder 212, the spring 405 is wrapped around the periphery of the plurality of multi-section type telescopic rods 404, the bellows 402 is wrapped around the periphery of the spring 405, the other end of the data transmission cable 2052 sequentially passes through the spherical deflection groove 202, the installation chamber 203 and extends into the bottom support pipe 1, and a portion of the data transmission cable 2052 in the bottom support pipe 1 is laid along the length direction of the bottom support pipe 1.
As described above, when the settlement amount detecting mechanism 4 detects the change in the distance between the synchronous settlement assembly 5 and the inclination angle detecting mechanism 2, the synchronous settlement assembly 5 moves in the direction of the inclination angle detecting mechanism 2 and drives the second connecting pipe 403 to move synchronously, and when the second connecting pipe 403 moves, the spring 405, the multi-section telescopic rod 404 and the telescopic bellows 402 are pressed, so that the distance between the second connecting pipe 403 and the first connecting pipe 401 changes, and the distance meter 212 connected to the deflection shaft body 205 can detect the distance between the second connecting pipe 403 and the distance meter 212 in real time, and the distance change, that is, the change distance between the second connecting pipe 403 and the first connecting pipe 401, is also the settlement amount of the synchronous settlement assembly 5.
As shown in fig. 2 and 5, the synchronous sedimentation assembly 5 includes a third connection pipe 501 detachably connected to the second connection pipe 403 and a sedimentation plate 502 fixedly connected to the third connection pipe 501.
It should be noted that, the sedimentation plate 502 may be conveniently connected to the second connecting pipe 403 through the third connecting pipe 501, and in the initial state, the weight of the sedimentation plate 502 and the third connecting pipe 501 may deform the spring 405 until the elasticity of the spring 405 balances with the weight of the sedimentation plate 502 and the third connecting pipe 501, and after the filling covering, the spring 405 may be further deformed and compressed, but when the spring 405 is no longer deformed under the influence of the gravity, it still has a larger deformation range for deformation during subsequent sedimentation detection.
The present embodiment has been described above, but the present embodiment is not limited to the above-described specific embodiment, which is merely illustrative and not restrictive, and many forms can be made by those of ordinary skill in the art in light of the present embodiment, which fall within the protection of the present embodiment.
Claims (10)
1. The utility model provides a high fill roadbed internal settlement deformation monitoring device which is characterized in that, including locating bottom stay pipeline (1) on the ground, a plurality of inclination detection mechanism (2) of detachable connection on bottom stay pipeline (1), connect the concatenation formula coupling assembling on inclination detection mechanism (2), connect settlement volume detection mechanism (4) on concatenation formula coupling assembling and connect synchronous settlement subassembly (5) on settlement volume detection mechanism (4), concatenation formula coupling assembling is used for adjusting the distance between settlement volume detection mechanism (4) and inclination detection mechanism (2), settlement volume detection mechanism (4) are used for detecting synchronous settlement subassembly (5) and move towards inclination detection mechanism (2) apart from, inclination detection mechanism (2) are used for detecting the inclination direction of concatenation formula coupling assembling and the inclination contained angle between concatenation formula coupling assembling and the horizontal plane;
the inclination detection mechanism (2) comprises a reference component, an inclination component arranged in the reference component, a data detection mechanism connected to the inclination component and an initial limit component arranged in the reference component, wherein the initial limit component is detachably connected with the inclination component, the inclination component is perpendicular to a horizontal plane when roadbed is not filled with soil, the inclination component is detachably connected with a splicing type connecting component, the data detection mechanism is used for detecting inclination directions of the inclination component and inclination included angles between the inclination component and the horizontal plane, and the reference component, the inclination component, the splicing type connecting component, the settlement amount detection mechanism (4) and the synchronous settlement component (5) are coaxially arranged.
2. The high-fill subgrade internal settlement deformation monitoring device according to claim 1, wherein the reference component comprises a positioning base (201), a spherical deflection groove (202) arranged at the upper end of the positioning base (201), and a mounting cavity (203) arranged in the positioning base (201), the mounting cavity (203) is communicated with the spherical deflection groove (202), the initial limiting component is mounted in the mounting cavity (203), and one end of the initial limiting component extends into the spherical deflection groove (202) and is detachably connected with the tilting component.
3. The high-fill subgrade internal settlement deformation monitoring device according to claim 2, wherein the inclination assembly comprises a residual spherical limit bracket (204), a plurality of balls (206) movably connected to the residual spherical limit bracket (204) and a deflection shaft body (205) fixedly connected to the middle position of the residual spherical limit bracket (204), the sphere center of the residual spherical limit bracket (204) coincides with the sphere center of the spherical deflection groove (202), and the balls (206) are all in contact with the inner wall of the spherical deflection groove (202).
4. The high-fill subgrade internal settlement deformation monitoring device according to claim 3, characterized in that a limit ring groove (209) is arranged at the position, close to the bottom, of the inner wall of the spherical deflection groove (202), the limit ring groove (209) is matched with the ball (206), and a flexible sealing protective sleeve (211) is connected between the positioning base (201) and the deflection shaft body (205).
5. The device for monitoring the settlement deformation of the high-fill subgrade according to claim 4, wherein the initial limiting component comprises a hydraulic telescopic rod (213) installed in the installation cavity (203) and a liquid guide tube (210) connected to the hydraulic telescopic rod (213), a limiting square hole (2050) matched with the output end of the hydraulic telescopic rod (213) is formed in the bottom of the deflection shaft body (205), the other end of the liquid guide tube (210) penetrates through the installation cavity (203) and extends into the bottom support pipeline (1), and the part of the liquid guide tube (210) in the bottom support pipeline (1) is distributed along the length direction of the bottom support pipeline (1).
6. The high-fill subgrade internal settlement deformation monitoring device as claimed in claim 5, wherein the data detection mechanism comprises a gyroscope sensor (207) connected to the bottom of the deflection shaft body (205), and a spiral telescopic cable (208) connected to the gyroscope sensor (207), the other end of the spiral telescopic cable (208) penetrates through the installation cavity (203) and extends into the bottom support pipe (1), and the part of the spiral telescopic cable (208) in the bottom support pipe (1) is distributed along the length direction of the bottom support pipe (1).
7. The high-fill subgrade internal settlement deformation monitoring device according to claim 6, wherein the spliced connecting assembly comprises a plurality of middle connecting pipes (3) connected end to end, two ends of the middle connecting pipes (3) are respectively provided with matched external threads and internal threads, the upper end of the deflection shaft body (205) is provided with a connecting groove (2053), and the opening of the connecting groove (2053) is provided with internal threads.
8. The high-fill subgrade internal settlement deformation monitoring device according to claim 7, wherein the settlement amount detection mechanism (4) comprises a first connecting pipe (401), a telescopic bellows (402) connected to the first connecting pipe (401), a second connecting pipe (403) connected to the telescopic bellows (402), a plurality of multi-section telescopic rods (404) connected between the first connecting pipe (401) and the second connecting pipe (403) and a spring (405), a range finder (212) installed in a connecting groove (2053), a wiring perforation (2051) arranged in a deflection shaft body (205) and communicated with the connecting groove (2053), and a data transmission cable (2052) connected to the range finder (212), wherein the spring (405) is wrapped around the periphery of the plurality of multi-section telescopic rods (404), the telescopic bellows (402) is wrapped around the periphery of the spring (405), the other end of the data transmission cable (2052) sequentially passes through the spherical deflection groove (202), the installation cavity (203) and extends into the bottom support pipe (1), and the data transmission cable (2052) is arranged along the length direction of the bottom support pipe (1) in the bottom support part (1).
9. The device for monitoring the settlement deformation of the interior of the high-fill subgrade according to claim 8, wherein the synchronous settlement assembly (5) comprises a third connecting pipe (501) detachably connected to the second connecting pipe (403) and a settlement plate (502) fixedly connected to the third connecting pipe (501).
10. A method for monitoring the settlement deformation of the interior of a high-fill subgrade, which is characterized by adopting the device for monitoring the settlement deformation of the interior of the high-fill subgrade according to any one of claims 1 to 9, and comprising the following steps:
before roadbed filling is carried out, a bottom support pipeline (1) is arranged, and an inclination angle detection mechanism (2) is arranged at a set position on the bottom support pipeline (1);
selecting splicing type connecting components with corresponding lengths according to the corresponding monitoring heights of the positions of each inclination angle detection mechanism (2), and connecting the segments in the soil filling process by the splicing type connecting components;
a settlement amount detection mechanism (4) is connected to the spliced connecting assembly, a synchronous settlement assembly (5) is connected to the settlement amount detection mechanism (4), and then filling is continued until the filling is completed;
the initial limiting component is controlled to be disconnected with the tilting component, so that the tilting component is not limited any more, the tilting direction of the tilting component and the degree of an included angle between the tilting component and the horizontal plane are detected through the data detection component at a set time point, and the settlement amount and the offset distance of the corresponding synchronous settlement component (5) are calculated.
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| CN202311351394.0A CN117109528B (en) | 2023-10-18 | 2023-10-18 | Device and method for monitoring settlement deformation in high-fill roadbed |
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| CN202311351394.0A CN117109528B (en) | 2023-10-18 | 2023-10-18 | Device and method for monitoring settlement deformation in high-fill roadbed |
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