CN117538501A - Device for simulating road sinking disease and detection method of road sinking disease - Google Patents

Abstract

The invention relates to the field of simulation test devices, in particular to a device for simulating road subsidence diseases, which comprises a U-shaped frame and a hydraulic system arranged in the U-shaped frame, wherein a deformation panel is arranged on the hydraulic system, the edges of the deformation panel are erected at two ends of the U-shaped frame, the hydraulic system is used for driving the deformation panel to deform in a specified mode, a road layer is laid on the top surface of the deformation panel, a plurality of crack meters and a plurality of soil pressure boxes are laid in the road layer, and the crack meters and the soil pressure boxes are respectively used for measuring the crack size of the road layer and the stress size of the road layer; the deformation panel is used for causing the settlement of the road layer, and various sensors are used for measuring the settlement condition of the road layer, so that the settlement of the road layer can be researched, repeated tests can be carried out, and the cost is saved.

Description

Device for simulating road sinking disease and detection method of road sinking disease

Technical Field

The invention relates to a simulation test device, in particular to a device for simulating road sinking diseases and a detection method of the road sinking diseases.

Background

The road subsidence phenomenon can be interpreted as the phenomenon of overlarge road subsidence amount, the volume of soil body is reduced, partial road surface is sunken downwards, the simulated road subsidence device needs to accurately survey and analyze geological conditions, and the simulated road subsidence device comprises knowledge of factors such as soil types, groundwater level, stratum structures, seismic activities and the like, and the information is important to the accuracy and reliability of the simulated subsidence process.

In the design of the road subsidence simulating device, the strength, stress-strain relation, deformation characteristics of different soil and the like of the soil body need to be considered, and meanwhile, the degree of road subsidence has close relation with the load of the vehicle.

The utility model discloses a refuse landfill lower lying soil body local subsidence and liner deformation test box with the publication number of CN104034306A, which is composed of an upper longitudinal beam, a vertical rod, a bottom cross beam, a longitudinal connecting rod, a short column, a jack, a model box, a lifting system, a soil pressure box and a strain gauge, wherein the top cross beam and the top longitudinal beam are connected in a welding mode, the vertical rod connects a top beam with a bottom beam to form a counter-force loading frame, the model box is composed of a top steel plate, a front organic glass plate, a back steel plate, a bottom plate and a side plate, the soil pressure box is buried in upper covering soil, and the strain gauge is adhered on each layer of geotechnical material in the liner system; however, the device disclosed by the invention is used for simulating the soil recession by pressing on the soil layer, and the actual situation cannot be more effectively simulated when the recession situation is different due to the fact that the internal volume of the road is reduced.

Disclosure of Invention

The invention aims to solve the technical problems that: the simulation test device for road subsidence cannot achieve the condition that the land subsides due to the fact that the internal volume of the road is reduced in actual conditions.

In order to solve the technical problems, the invention adopts the following technical scheme:

first, a device for simulating road sinking disease is provided, which is characterized in that: including U type frame, and the hydraulic system of setting in U type frame, be provided with the panel that warp on the hydraulic system, the both ends at U type frame are set up at the panel edge that warp, hydraulic system is used for driving the panel that warp and takes place the deformation of appointed mode, the road layer has been laid to the panel top surface that warp, the road layer has laid several crack meter and several soil pressure cell, is used for measuring respectively the crack size on road layer and the stress size on road layer.

Further, a bracket is arranged at the position of the road layer corresponding to the deformation panel, uniformly distributed laser transmitters are arranged on the bracket, and a laser receiver is arranged at the position of the road layer corresponding to the laser transmitters; and measuring the external subsidence of the road layer by the laser transmitter and the laser receiver to obtain the external change condition in the subsidence process of the road layer.

Further, a telescopic rod is arranged on the bracket, and a pressurizing plate is arranged on the telescopic rod; the telescopic link stretches out and draws back, makes the pressurization board act on the road layer, prevents because the connecting force between the road layer is too big, leads to the road layer not sinking in time, just can accelerate test progress through the pressurization board, improves test efficiency.

Further, a plurality of support rods are arranged between the inner side surface and the bottom surface of the U-shaped frame, the end parts of the support rods are detachably connected with the U-shaped frame through bolts, and stress sensors are arranged in the support rods; the bracing piece is used for supporting U type framework, prevents that the too big U type framework that leads to of pressure from collapsing, improves the stability of this device.

Further, the road layer laying area exceeds the top surface area of the deformation panel, and the crack meters are laid at two ends of the U-shaped frame; in the road layer sinking process, the crack generally appears at the tip of U type frame, lays the crack meter at the both ends of U type frame, can effectively guarantee timely measurement crack size.

Further, the hydraulic system comprises a hydraulic jack connected with the deformation panel and a control console for controlling the hydraulic jack to stretch out and draw back, and a plurality of hydraulic jacks which are uniformly distributed are arranged inside the U-shaped frame; the control console can accurately control the hydraulic jack to stretch out and draw back, so that the hydraulic jack can accurately control the deformation panel to deform, and the accuracy of the device is improved.

Further, the hydraulic jack is connected with the control console through a connecting pipeline, a steel plate is arranged at the position of the deformation panel corresponding to the hydraulic jack, and the hydraulic jack is detachably connected with the steel plate through bolts; through the steel sheet, make the hydraulic jack with warp and dismantle between the panel and be connected, can make things convenient for this device to shift and splice, also conveniently change the deformation panel that can't recover simultaneously, improved the adaptability of this device.

Further, a U-shaped notch is formed in the edge of the inner side of the top of the U-shaped frame, which faces the strain panel, a freely movable cylinder is arranged in the U-shaped notch, the end part of the deformation panel is connected with the corresponding cylinder, the thickness of the deformation panel is smaller than the diameter of the cylinder, a limit strip is arranged at the opening of the U-shaped notch, and a strain sensor is arranged on the surface of the deformation panel; under the effect of cylinder, make the in-process that warp the panel in the emergence deformation, the edge can be stable remove, be unlikely to appear warp limit and collapse, can provide accurate deformation, and the setting of spacing, also can guarantee that the tip of warp the panel is not separated with the tip of U type frame, improves the stability of this device.

Further, the road layer comprises an upper layer, a lower layer, a base layer, a cushion layer and a soil-based road material which are sequentially stacked from top to bottom, and each layer of road material of the road layer is provided with a soil pressure box and a crack meter; each layer of road material is detected, the accuracy of data can be guaranteed, and the subsidence of the road layer can be comprehensively analyzed.

The detection method for detecting the road sinking disease is characterized by comprising the following detection steps:

s1: placing a U-shaped frame, arranging a hydraulic system in the U-shaped frame, installing a deformation panel on the hydraulic system, and splicing the edges of the deformation panel with the two ends of the U-shaped frame;

s2: paving a road layer to be detected on the deformation panel, paving a soil pressure box and a crack meter at a position corresponding to the end part of the U-shaped frame in the road layer, and paving a laser ranging device at the top of the road layer;

s3: controlling a hydraulic system to deform a deformation panel so as to enable a road layer to simultaneously generate corresponding subsidence, collecting data of internal stress change of the road layer detected by a soil pressure box, collecting data of crack size of the road layer detected by a crack meter, and collecting data of external subsidence of the road layer detected by a laser ranging device;

s4: integrating and optimizing each data in the S3 and forming final data;

s5: and checking the final data, and analyzing the subsidence of the road layer.

The invention has the following beneficial effects:

1. the hydraulic jack is utilized to drive the deformation panel to deform, so that the road layer is correspondingly sunk, sinking diseases of various roads can be simulated, multiple aspects of researches are facilitated, and the research effect is improved;

2. meanwhile, when the hydraulic jack is reset, the device can be restored to the initial state, repeated tests can be carried out on different roads, repeated excavation is avoided, resource waste is reduced, and manpower and financial resources are saved;

3. the settlement of the road layer can be numerically analyzed by utilizing various sensing elements, so that the situation when the road layer is settled can be known, and the simulation test can be efficiently and comprehensively carried out;

4. through can dismantle the connection between each part, can easy to assemble and dismantle, improve the work efficiency in arranging the place, it is also more convenient to change to some part simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of the present embodiment;

FIG. 2 is a side view of the present embodiment;

FIG. 3 is an enlarged view at A of FIG. 2;

fig. 4 is a usage state diagram of the present embodiment.

Detailed Description

The invention will be better explained by the following detailed description of the embodiments with reference to the drawings.

It should be noted that all the directional indicators in the embodiments of the present invention are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, and if the specific posture is changed, the directional indicators are correspondingly changed.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

The invention provides a device for simulating road subsidence diseases, as shown in fig. 1 and 2, the device comprises a U-shaped frame 10, the U-shaped frame 10 can be attached to a detected road field, a deformation panel 20 is arranged at an opening of the U-shaped frame 10 in a tower, the deformation panel 20 has a certain deformation amount (deformation of the deformation panel belongs to the prior art and is not repeated here), a road layer to be simulated is paved on the deformation panel 20, the paved road layer has the same structure as a soil layer structure to be researched, the paved road layer is preferably flush with other roads, and the construction level of the paved road layer is an upper layer 50, a lower layer 51, a base layer 52, a cushion layer 53 and a soil base 54 from top to bottom in sequence, wherein the soil base 54 is directly contacted with the deformation panel 20, the paved area of the road layer is larger than that of the deformation panel 20, and the deformation panel 20 is fully covered by the road layer.

Specifically, in this embodiment, a strip-shaped road layer may be laid, wherein the two ends of the U-shaped frame 10 are disposed in tandem along the longitudinal direction of the road layer, and the width of the road layer may be consistent with the width of the deformation panel 20.

Wherein a hydraulic system is arranged in the U-shaped frame 10, the hydraulic system is used for controlling the deformation panel 20 to deform, meanwhile, a soil pressure box 22 is paved in the road layer for detecting the stress condition of the road layer, and a crack meter 21 is paved for measuring the crack of the road layer.

Specifically, as shown in fig. 4, in this embodiment, when the deformation panel 20 is deformed, the road layer will sink correspondingly, in this embodiment, when the hydraulic system controls the deformation panel 20 to sink downwards, the bottom of the road layer is not supported, the road layer will sink under the action of gravity, after the amount of the depression of the road layer reaches a certain level, a crack may appear between the road layer on the deformation panel 20 and the road layer around, meanwhile, for better crack measurement, the crack meter 21 is laid at two ends of the U-shaped frame 10, and the soil pressure box 22 is used for detecting the stress distribution condition of the road layer, so that the sinking condition of the road layer can be better analyzed.

Meanwhile, the hydraulic system can control the deformation panel 20 to be upwards protruded, so that the road layer is driven to be upwards protruded, namely, the situation similar to the situation of road protrusion in reality is achieved, at the moment, the soil pressure box 22 can also well detect the change of stress in the road layer when the deformation panel 20 is upwards protruded, meanwhile, if the situation of protrusion is detected in advance in the test process, the situation that cracks of the road layer can appear at the protrusion can be known, so that the crack meter 21 can be paved at the protrusion in advance, the situation of road deformation is determined when the road layer is paved in the test process of simulation, the effectiveness of the test can be effectively improved, and the simulation effect is better.

As shown in fig. 2, a support 30 is disposed at a position above the road layer corresponding to the deformation panel 20, a plurality of laser transmitters 31 are uniformly distributed on the support 30, corresponding laser receivers 32 are mounted on the top surface of the road layer corresponding to the positions of the laser transmitters 31, the laser transmitters 31 send signals to the corresponding laser receivers 32, at this time, the distance between the laser transmitters 31 and the laser receivers 32 can be measured, before the road layer is sunk, the distance can be measured first, after the road layer is sunk, the distance is measured again, at this time, the sunk amount of the road layer can be clearly known, the sunk situation can be judged, and the sunk condition of the road layer can be clearly known through the change of data, so that the analysis is more convenient.

Meanwhile, as shown in fig. 2, the telescopic rod 33 is installed on the bracket 30, the pressing plate 34 is installed on the telescopic rod 33, when the hydraulic system drives the deformation panel 20 to sink downwards, at this moment, due to the connection between road layers, the road layers are not sunk immediately, at this moment, the telescopic rod 33 stretches to drive the pressing plate 34 to squeeze on the road layers, so that the road layers can collapse immediately, the pressing plate 34 can stop working only by collapsing the road layers, and when the pressing plate 34 squeezes downwards, the shape of the road layers is slightly damaged, at this moment, the road can sink downwards immediately under the action of gravity, the test process is accelerated, and the working efficiency is improved.

As shown in fig. 2, the surface of the deformation panel 20 is provided with a strain sensor 23 for measuring the strain value of the deformation panel 20, and the simulated subsidence amount of the road layer in practice can be analyzed by comparing the strain value of the deformation panel 20 with the subsidence amount of the road layer, which has guiding significance for subsequent maintenance and construction.

Specifically, as shown in fig. 1 and 2, in this embodiment, the hydraulic system includes a hydraulic jack 40 and a console 41, where a plurality of hydraulic jacks 40 are uniformly distributed in the U-shaped frame 10, the hydraulic jack 40 is connected with the deformation panel 20, the hydraulic jack 40 is connected with the console 41 through a connecting pipe 42, the console 41 is used to control expansion and contraction of the hydraulic jack 40, in the process of driving the deformation panel 20 to sink, the hydraulic jack 40 shortens, at this moment, the deformation panel 20 will sink downwards, and correspondingly, when the hydraulic jack 40 extends, the deformation panel 20 will bulge upwards to form a bulge, at the same time, a part of the hydraulic jacks 40 can shorten, and a part of the hydraulic jacks 40 can extend, so that the deformation panel 20 forms a certain form of wave shape, corresponding roads will also change correspondingly, and the simulated situation is more various.

As shown in fig. 2, a steel plate 43 is disposed at a position of the deformation panel 20 corresponding to the hydraulic jack 40, and the hydraulic jack 40 is detachably connected with the steel plate 43 through bolts, so that a user can assemble the device conveniently.

As shown in fig. 1, fig. 2 and fig. 3, wherein a plurality of support rods 11 are uniformly distributed between the side surface and the bottom surface of the inner side of the U-shaped frame 10, wherein the end surfaces of the support rods 11 are detachably connected with the U-shaped frame 10 through bolts, the support rods 11 are used for reinforcing the structure of the U-shaped frame 10 and preventing the U-shaped frame 10 from collapsing when the deformation panel 20 is driven to deform, and meanwhile, stress sensors 12 are arranged in the support rods 11 and used for detecting the pressure received by the support rods 11, so that the pressure received by the U-shaped frame 10 can be monitored in real time through data, and accidents are prevented.

As shown in fig. 3, a U-shaped notch 13 is formed at a position of the U-shaped frame 10 corresponding to the deformation panel 20, an adapted cylinder 14 is disposed in the U-shaped notch 13, the cylinder 14 can move freely in the U-shaped notch 13, wherein an end of the deformation panel 20 extends into the U-shaped notch 13 to be fixedly connected with the cylinder 14, and since the deformation panel 20 is concave downward or convex upward, the end of the deformation panel 20 is retracted, the cylinder 14 moves toward an opening of the U-shaped notch 13, the deformation panel 20 is smoother in a sinking process through the cylinder 14 and the U-shaped notch 13, and is not easy to slide, so that a test effect is poor, meanwhile, in order to prevent interference, the thickness of the deformation panel 20 is smaller than the diameter of the cylinder 14, and a limit bar 15 is disposed at the opening of the U-shaped notch 13, and the limit bar 15 is used for preventing the cylinder 14 from sliding out of the U-shaped notch 13.

In the use process of the embodiment, the device is spliced well, then a road layer needing to be simulated is paved on the deformation panel 20, the corresponding soil pressure box 22 and the crack meter 21 are paved in the road layer paving process, then the control console 41 is operated to drive the hydraulic jack 40 to stretch out and draw back, the deformation panel 20 is driven to deform, the corresponding road layer is sunk, the condition that the depression or protrusion occurs on the ground due to the reduction or increase of the internal volume of the road is simulated, the subsidence of the road layer is more in line with the actual condition, then the condition of the road layer is analyzed through the arranged sensing device, the follow-up study is facilitated, the guiding direction is provided for the subsidence of the actual road, and meanwhile, after the hydraulic jack 40 is controlled to return to the original state, the test can be repeated, the cost is reduced, and the materials and the manpower are saved.

The invention also provides a detection method for detecting the road sinking disease, which comprises the following detection steps of:

s1: placing a U-shaped frame 10, arranging a hydraulic system in the U-shaped frame 10, installing a deformation panel 20 on the hydraulic system, and splicing the edges of the deformation panel 20 with the two ends of the U-shaped frame 10;

s2: the road layer to be detected is paved on the deformation panel 20, a soil pressure box 22 and a crack meter 21 are paved at the position corresponding to the end part of the U-shaped frame 10 in the road layer, and meanwhile, a laser ranging device is paved at the top of the road layer, so that the external change when the road layer is sunk can be measured;

s3: controlling a hydraulic system to deform the deformation panel 20 so as to enable the road layer to simultaneously sink correspondingly, collecting data of the internal stress change of the road layer detected by the soil pressure box 22, collecting data of the crack size of the road layer detected by the crack meter 21, and collecting data of the external sinking size of the road layer detected by the laser ranging device;

s4: integrating and optimizing each data in the S3 and forming final data;

s5: and checking the final data, and analyzing the subsidence of the road layer.

It should be understood that the above description of the specific embodiments of the present invention is only for illustrating the technical route and features of the present invention, and is for enabling those skilled in the art to understand the present invention and implement it accordingly, but the present invention is not limited to the above-described specific embodiments. All changes or modifications that come within the scope of the appended claims are intended to be embraced therein.

Claims (10)

1. The utility model provides a device of simulation road subsidence disease which characterized in that: including U type frame (10), and set up the hydraulic system in U type frame (10), be provided with on the hydraulic system and warp panel (20), the both ends at U type frame (10) are set up at the edge of warp panel (20), hydraulic system is used for driving the deformation that warp panel (20) take place the appointed mode, road layer has been laid to warp panel (20) top surface, several crack meter (21) and several soil pressure box (22) have been laid in the road layer, are used for measuring respectively the crack size on road layer and the stress size on road layer.

2. The device for simulating road sinking disease according to claim 1, wherein a bracket (30) is installed on the road layer at a position corresponding to the deformation panel (20), uniformly distributed laser transmitters (31) are installed on the bracket (30), and a laser receiver (32) is installed on the road layer at a position corresponding to the laser transmitters (31).

3. A device for simulating road sinking disease according to claim 2, characterized in that the support (30) is provided with a telescopic rod (33), and the telescopic rod (33) is provided with a pressing plate (34).

4. The device for simulating road sinking disease according to claim 1, wherein a plurality of support rods (11) are arranged between the inner side surface and the bottom surface of the U-shaped frame (10), the end parts of the support rods (11) are detachably connected with the U-shaped frame (10) through bolts, and stress sensors (12) are arranged in the support rods (11).

5. A device for simulating road sinking disease according to claim 1, characterized in that the road layer laying area exceeds the top surface area of the deformation panel (20), and the crack gauges (21) are laid at both ends of the U-shaped frame (1).

6. The device for simulating sinking of roads according to claim 1, wherein the hydraulic system comprises hydraulic jacks (40) connected with the deformation panel (20) and a control console (41) for controlling the expansion and contraction of the hydraulic jacks (40), and a plurality of hydraulic jacks (40) uniformly distributed are arranged inside the U-shaped frame (10).

7. The device for simulating sinking of roads according to claim 6, wherein the hydraulic jack (40) is connected with the console (41) through a connecting pipeline (42), a steel plate (43) is arranged at a position of the deformation panel (20) corresponding to the hydraulic jack (40), and the hydraulic jack (40) is detachably connected with the steel plate (43) through bolts.

8. The device for simulating road sinking disease according to claim 1, wherein a U-shaped notch (13) is formed in the edge of the inner side of the top of the U-shaped frame (10) facing the strain panel (20), a cylinder (14) capable of moving freely is arranged in the U-shaped notch (13), the end of the strain panel (20) is connected with the corresponding cylinder (14), the thickness of the strain panel (20) is smaller than the diameter of the cylinder (14), a limit bar (15) is arranged at the opening of the U-shaped notch (13), and a strain sensor (23) is arranged on the surface of the strain panel (20).

9. A device for simulating road subsidence failure according to claim 1, characterized in that the road layer comprises road materials of upper layer (50), lower layer (51), base layer (52), cushion layer (53) and soil base (54) laid in sequence from top to bottom, each of the road materials of the road layer having laid therein soil pressure cell (22) and crack meter (21).

10. The detection method for detecting the road sinking disease is characterized by comprising the following detection steps:

s1: placing a U-shaped frame (10), arranging a hydraulic system in the U-shaped frame (10), installing a deformation panel (20) on the hydraulic system, and splicing the edges of the deformation panel (20) with two ends of the U-shaped frame (10);

s2: paving a road layer to be detected on the deformation panel (20), paving a soil pressure box (22) and a crack meter (21) at a position corresponding to the end part of the U-shaped frame (10) in the road layer, and paving a laser ranging device at the top of the road layer;

s3: controlling a hydraulic system to deform a deformation panel (20) so as to enable a road layer to simultaneously generate corresponding subsidence, collecting data of internal stress change of the road layer detected by a soil pressure box (22), collecting data of crack size of the road layer detected by a crack meter (21), and collecting data of subsidence size of the road layer detected by a laser ranging device;

s4: integrating and optimizing each data in the S3 and forming final data;

s5: and checking the final data, and analyzing the subsidence of the road layer.