CN218823591U - Test device for simulating influence of stratum settlement on pipeline - Google Patents
Test device for simulating influence of stratum settlement on pipeline Download PDFInfo
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Abstract
The utility model discloses a test device for simulating the influence of stratum settlement on a pipeline, which comprises a test box body, a test pipeline, a settlement mechanism and a data acquisition device; the test box comprises a test box body, a test pipeline, a test box body and a control device, wherein the test pipeline is arranged in the test box body, and the region except the test pipeline in the test box body is used for containing a test soil body; the sedimentation mechanism is connected with the bottom of the test box body and is used for driving the bottom of the test box body to descend; the data acquisition device is positioned on the surface of the test pipeline and used for acquiring displacement deformation data of the test pipeline. The utility model discloses can simulate the different influence that subsides the mode to the underground utility to gather the different deformation data that subsides underground utility under the mode, reach the purpose of predicting the destruction condition that the pipeline probably received in advance. The problem of among the prior art can only after the pipeline takes place deformation, can acquire the pipeline because of the deformation data that the stratum subsides and produce, be difficult to collect the influence information of various stratum subsidence modes to the pipeline in advance is solved.
Description
Technical Field
The utility model relates to a test equipment field especially relates to a simulation stratum subsides test device to pipeline influence.
Background
The buried steel pipeline is the most convenient, most economical and most reliable choice for long-distance oil and gas transmission, and the structural safety and reliability of the buried steel pipeline are widely concerned. The long-distance buried pipelines have wide spanning range, complex terrain crossing and large influence by geological conditions, and various faults can occur under the influence of geological disasters, so that the pipelines bear axial tension-compression deformation and bending deformation, and even cause environmental hazards such as oil gas leakage and the like.
Stratum subsidence is a common geological disaster causing deformation and damage of underground pipelines, so that the understanding of the mechanism of pipeline damage caused by stratum subsidence has important significance for researching the safety and reliability of the underground pipelines. At present, in order to solve the problem that the underground pipeline is deformed and damaged by stratum sedimentation, a monitor is usually placed on the pipeline to achieve the purpose of real-time monitoring, however, the real-time monitoring method is high in cost, and the damage condition possibly suffered by the pipeline cannot be predicted in advance.
Thus, there is a need for improvement and development of the prior art.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem lies in that, to the above-mentioned defect of prior art, a simulation stratum subsides test device to pipeline influence is provided, aim at solving among the prior art and can only take place the deformation back at the pipeline, could acquire the pipeline because of the deformation data that the stratum subsides the production, be difficult to collect the problem of various stratum settlement modes to the influence information of pipeline in advance.
The utility model solves the problems that the adopted technical scheme is as follows:
in a first aspect, an embodiment of the present invention provides a test apparatus for simulating the influence of formation settlement on a pipeline, wherein the apparatus includes a test box, a test pipeline, a settlement mechanism and a data acquisition device; the test pipeline is arranged in the test box body, and the area except the test pipeline in the test box body is used for containing a test soil body; the sedimentation mechanism is connected with the bottom of the test box body and is used for driving the bottom of the test box body to descend; the data acquisition device is positioned on the surface of the test pipeline and used for acquiring displacement deformation data of the test pipeline.
In one embodiment, two side surfaces of the test box body are respectively provided with a through hole, the diameter of each through hole is larger than or equal to that of the test pipeline, a restraining device is arranged outside each through hole, and each restraining device is used for fixing one end of each test pipeline and one through hole.
In one embodiment, the bottom of the test box body is a flexible pad, the sedimentation mechanism comprises a plurality of movable blocks, the arrangement area of the movable blocks corresponds to the bottom of the test box body, and the movable blocks are respectively used for driving different areas of the bottom of the test box body to descend.
In one embodiment, each of the movable blocks comprises a movable plate and an electric support rod; the movable plate is positioned below the bottom of the test box body; the electric support rod is located below the movable plate and used for driving the movable plate to descend.
In one embodiment, the data acquisition device comprises at least one pipe displacement monitoring device; and when the number of the pipeline displacement monitoring devices is a plurality, the pipeline displacement monitoring devices are respectively positioned at different positions on the test pipeline.
In one embodiment, the data acquisition device comprises at least one pipeline strain monitoring device; when the number of the pipeline strain monitoring devices is a plurality, the plurality of pipeline strain monitoring devices are respectively positioned at different positions on the test pipeline.
In one embodiment, the data acquisition device comprises at least one soil pressure monitoring device; when the number of the soil body pressure monitoring devices is a plurality, the soil body pressure monitoring devices are respectively positioned in the soil bodies corresponding to different positions on the test pipeline.
In an embodiment, the data acquisition device includes two linear displacement sensors, two the linear displacement sensor is located respectively the different ends of body that awaits measuring.
In one embodiment, the apparatus further comprises a three-dimensional topography scanner located above the test chamber for detecting surface subsidence of soil within the test chamber.
In one embodiment, at least one of the front and back surfaces of the test chamber is a transparent tempered glass plate.
The utility model has the advantages that: the utility model discloses a simulation difference subsides the influence of mode to the underground utility to gather different deformation data of subsiding underground utility under the mode, reach the purpose of predicting the destruction condition that the pipeline probably received in advance. The problem of among the prior art can only after the pipeline takes place deformation, can acquire the pipeline because of the deformation data that the stratum subsides and produce, be difficult to collect the influence information of various stratum subsidence modes to the pipeline in advance is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic perspective view of a test device for simulating the influence of stratum settlement on a pipeline provided by an embodiment of the utility model.
Fig. 2 is a schematic front structural diagram of a test device for simulating the influence of stratum settlement on a pipeline provided by the embodiment of the utility model.
Fig. 3 is a schematic structural diagram of a bottom of a box body provided by an embodiment of the present invention.
Reference numerals: 1. the device comprises a test soil body, 2 parts of a test box body, 3 parts of a linear displacement sensor, 4 parts of a restraint device, 5 parts of a sedimentation mechanism, 6 parts of a flexible pad, 7 parts of a soil pressure cell, 8 parts of a test pipeline, 9 parts of a strain gauge, 10 parts of a computer, 11 parts of a support, 12 parts of a stay rope type displacement meter, 13 parts of a three-dimensional terrain scanner, 14 parts of a movable plate and 15 parts of an electric support rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear \8230;) are involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship between the components in a specific posture (as shown in the attached drawings), the motion situation, etc., and if the specific posture is changed, the directional indications are changed accordingly.
The buried steel pipeline is the most convenient, most economical and most reliable choice for long-distance oil and gas transmission, and the structural safety and reliability of the buried steel pipeline are widely concerned. The long-distance buried pipelines have wide spanning range, complex terrain crossing and large influence by geological conditions, and various faults can occur under the influence of geological disasters, so that the pipelines bear axial tension-compression deformation and bending deformation, and even cause environmental hazards such as oil gas leakage and the like.
Stratum subsidence is a common geological disaster causing deformation and damage of underground pipelines, so that the understanding of the mechanism of pipeline damage caused by stratum subsidence has important significance for researching the safety and reliability of the underground pipelines. At present, in order to solve the problem that the deformation and damage of the underground pipeline caused by the stratum settlement, a monitor is usually placed on the pipeline to achieve the purpose of real-time monitoring, however, the real-time monitoring method is high in cost, and the damage condition possibly suffered by the pipeline cannot be predicted in advance.
In order to solve the above problems in the prior art, the present embodiment provides a test apparatus for simulating the influence of formation settlement on a pipeline, where the apparatus includes a test box, a test pipeline, a settlement mechanism, and a data acquisition device; the test pipeline is arranged in the test box body, and the area except the test pipeline in the test box body is used for containing a test soil body; the sedimentation mechanism is connected with the bottom of the test box body and is used for driving the bottom of the test box body to descend; the data acquisition device is positioned on the surface of the test pipeline and used for acquiring displacement deformation data of the test pipeline. The utility model provides a test device can simulate different modes of subsiding and to pipeline's influence to gather different deformation data that subside pipeline under the mode, be used for the different settling velocity of analysis, different settlement range, different settlement shape down the stratum subside to the influence of pipe soil interact, reach the purpose of predicting the destruction circumstances that the pipeline probably received in advance. The problem of among the prior art can only after the pipeline takes place deformation, can acquire the pipeline because of the deformation data that the stratum subsides and produce, be difficult to collect the influence information of various stratum subsidence modes to the pipeline in advance is solved.
As shown in fig. 1, the device comprises a test box body 2, a test pipeline 8, a settling mechanism 5 and a data acquisition device; the test pipeline 8 is arranged in the test box body 2, and the area, except the test pipeline 8, in the test box body 2 is used for containing a test soil body 1; the sedimentation mechanism 5 is connected with the bottom of the test box body 2 and is used for driving the bottom of the test box body 2 to descend; the data acquisition device is positioned on the surface of the test pipeline 8 and is used for acquiring displacement deformation data of the test pipeline 8.
Specifically, in order to simulate the influence of the stratum sedimentation on the pipeline, the embodiment simulates the spatial position relationship of the stratum and the pipeline in the actual environment by placing the test pipeline 8 and the test soil body 1 in the test box body 2. Then, the bottom of the test box body 2 is provided with the sedimentation mechanism 5, the sedimentation mechanism 5 drives the bottom of the test box body 2 to descend, and then the test soil body 1 in the test box body 2 is driven to descend, so that the aim of simulating stratum sedimentation is achieved. In order to obtain the displacement and deformation data of the test pipeline 8 during the stratum settlement, a data acquisition device is further arranged on the surface of the test pipeline 8.
In one implementation mode, two side surfaces of the test box body 2 are respectively provided with a through hole, the diameter of each through hole is larger than or equal to that of the test pipeline 8, a restraining device 4 is arranged outside each through hole, and each restraining device 4 is used for fixing one end of each test pipeline 8 and one through hole.
Briefly, in order to ensure that the subsequent displacement and deformation of the test pipeline 8 are generated based on the simulation process of the stratum settlement, the two ends of the test pipeline 8 need to be fixed first in this embodiment. Specifically, two side surfaces of the test box 2 are respectively provided with a through hole, and since two ends of the test pipeline 8 need to respectively penetrate through one through hole for fixing, the diameter of the through hole can only be larger than that of the test pipeline 8. Each through hole is then provided with a restraining device 4 by means of which restraining device 4 the pipe end of the test pipe 8 is fixed to the through hole.
In one implementation mode, the bottom of the test box body 2 is a flexible pad, the sedimentation mechanism 5 comprises a plurality of movable blocks, the arrangement area of the movable blocks corresponds to the bottom of the test box body 2, and the movable blocks are used for driving different areas of the bottom of the test box body 2 to descend respectively.
Specifically, in order to simulate different stratum settlement conditions, the bottom of the box bottom is provided with a flexible pad, and the settlement mechanism 5 is constructed by a plurality of movable blocks, wherein the arrangement areas corresponding to all the movable blocks cover the whole bottom of the test box body 2. Different areas at the bottom of the test box body 2 can be driven to descend by controlling different movable blocks to descend at a specific descending speed or descending amount, and then different stratum settlement conditions can be simulated.
In one implementation, each of the movable blocks includes a movable plate 14 and an electric support rod 15; the movable plate 14 is positioned below the bottom of the test box body 2; the electric support rod 15 is located below the movable plate 14, and is used for driving the movable plate 14 to descend.
Specifically, as shown in fig. 3, each movable block in the present embodiment is composed of a pair of movable plates 14 and an electric support rod 15. Wherein, the movable plate 14 is used for supporting the bottom of the test box 2, and the electric support rod 15 is used for supporting the movable plate 14 and driving it to descend. The computer control system controls each electric support rod 15, so that the preset sedimentation operation of the test soil body 1 can be realized, and different stratum sedimentation conditions can be simulated.
In one implementation, the data acquisition device includes at least one pipe displacement monitoring device; when the number of the pipeline displacement monitoring devices is a plurality, the plurality of pipeline displacement monitoring devices are respectively positioned at different positions on the test pipeline 8.
Specifically, in this embodiment, one or more deformation settlement positions are marked on the test pipeline 8 in advance, and a pipeline displacement monitoring device is arranged at each deformation settlement position, and is used to acquire pipeline displacement data of the deformation settlement position. In one implementation, as shown in fig. 1 and 2, the pipe displacement monitoring device may be a pull-rope type displacement meter 12, and each pull-rope type displacement meter 12 is arranged along the axial direction of the test pipe 8.
In one implementation, the data acquisition device includes at least one pipe strain monitoring device; when the number of the pipeline strain monitoring devices is a plurality, the plurality of pipeline strain monitoring devices are respectively positioned at different positions on the test pipeline 8.
Specifically, in this embodiment, one or more pipeline strain monitoring devices are further disposed at different positions on the test pipeline 8, and each pipeline strain monitoring device is configured to measure pipeline strain data at different positions on the test pipeline 8. In one implementation, the pipeline strain monitoring devices are arranged along the axial direction of the test pipeline 8, each pipeline strain monitoring device comprises a plurality of strain gauges 9, and the plurality of strain gauges 9 are respectively located at different positions of the same position of the test pipeline 8. For example, each pipeline strain monitoring device comprises three strain gauges 9, and the three strain gauges 9 are respectively positioned on the upper part, the lower part and the side part of the test pipeline 8.
In one implementation, the data acquisition device comprises at least one soil pressure monitoring device; when the number of the soil body pressure monitoring devices is a plurality, the soil body pressure monitoring devices are respectively positioned in the test soil body 1 corresponding to different positions on the test pipeline 8.
Specifically, in this embodiment, one or more soil pressure monitoring devices are buried in the test soil 1 around the test pipeline 8. The soil body pressure monitoring devices are respectively arranged along the axis direction of the test pipeline 8 and used for monitoring the soil pressure of different positions of the test pipeline 8. In one implementation mode, each soil body pressure monitoring device is composed of a plurality of soil pressure boxes 7, and the soil pressure boxes 7 are respectively located on the soil bodies 1 in different directions corresponding to the same position on the test pipeline 8. For example, each soil pressure monitoring device is composed of two soil pressure boxes 7, and the two soil pressure boxes 7 are respectively buried in the upper and lower test soil 1 at the same position of the test pipeline 8.
In one implementation, the data acquisition device includes two linear displacement sensors 3, and the two linear displacement sensors 3 are respectively located at different ends of the pipe body to be measured.
Specifically, in the present embodiment, linear displacement sensors 3 (LVDTS) are further installed at two ends of the test pipe 8, and each linear displacement sensor 3 is configured to acquire axial displacement data and end face rotation data of one end of the test pipe 8.
In one implementation, the apparatus further comprises a three-dimensional topography scanner 13, wherein the three-dimensional topography scanner 13 is located above the test box 2 and is used for detecting the surface sedimentation condition of the soil body 1 in the test box 2.
Specifically, as shown in fig. 1 and 2, a support 11 is arranged at the top of the test box 2, and a three-dimensional topography scanner 13 is arranged on the support 11, and can monitor the surface settlement of the soil body by shooting the soil body at the top of the test box 2.
In one implementation, the data acquisition device is connected with the strain gauges 9, the stay cord type displacement meters 12, the soil pressure boxes 7, the linear displacement sensors 3, the three-dimensional terrain scanner 13 and the linear displacement sensors 3 through sensors to acquire various data.
In one implementation, at least one of the front and back surfaces of the test chamber 2 is a transparent tempered glass plate.
Specifically, in order to conveniently and visually see the settlement and displacement of the test soil body 1, the front or/and the back of the test box body 2 is/are used as an observation surface in the embodiment, the test box body is made of transparent toughened glass plates, the left side surface and the right side surface of the test box body are made of steel plates, and the side plates can be detachably replaced, so that the distribution tests of different burial depths of pipelines and a plurality of pipelines can be realized. In one implementation, in order to better measure the laying height of the test soil body 1 and monitor the displacement of the test soil body 1, the height marking point is arranged on the observation surface in the embodiment, and white talcum powder is scattered in the soil layer with the preset pipeline burial depth to observe the soil layer settlement condition.
In order to facilitate understanding of the present apparatus, this embodiment provides a method for using a test apparatus for simulating influence of formation sedimentation on a pipeline:
1. before the test, whether the equipment and the materials used in the test are completely prepared or not is checked, the integrity of the equipment and the materials is checked, and the monitoring equipment and the like can be used normally.
2. Marking the arrangement positions of the strain gauges 9 on the test pipeline 8 according to requirements, and sticking three strain gauges 9 to a group of rings, wherein the three strain gauges are respectively positioned at the upper part, the lower part and the side part of the pipeline; and marking the position of a measuring point of the deformation and settlement of the test pipeline 8. After the strain gauge 9 is attached, a static resistance strain gauge and a program are debugged to check whether a line is smooth or not and whether the strain gauge 9 can work normally or not.
3. The settling mechanism 5 is installed and comprises a movable plate 14, a flexible pad 6, an electric support rod 15 and a computer control system. An electric support rod 15 is arranged below the movable plate 14, and the sinking speed and the sinking amount of the electric support rod 15 are controlled by the computer 10, so that the control system is preliminarily checked.
4. The test box body 2 is installed on the stratum settling system, holes are formed in the two ends of the test box body 2 and used for enabling the test pipeline 8 to penetrate through the holes, and the restraint devices 4 are arranged at the two ends of the test box body 2 to restrain the pipeline. The bottom of the test box 2 is provided with a plurality of movable plates 14 supported by electric support rods 15. The bottom of the test box body 2 is coated with a flexible pad 6, soil bodies 1 are uniformly laid above the flexible pad 6 in a layered mode, after each layer of soil body 1 is laid, a trowelling shovel is used for trowelling and beating to be dense, and then white talcum powder is spread to observe the deformation condition of soil in the sedimentation process.
5. And a stay rope displacement sensor is arranged at the deformation settlement position marked by the test pipeline 8 to monitor the settlement condition of the test pipeline 8 in the test, and the displacement sensor is connected to a data acquisition instrument after being arranged to check whether the line is smooth.
6. And (3) arranging the test pipeline 8 to which the strain gauge 9 and the pull rope type displacement meter 12 are adhered above the test soil body 1, simultaneously installing the soil pressure boxes 7, arranging the soil pressure boxes 7 around the test pipeline 8 at equal intervals along the pipeline, and respectively installing one soil pressure box 7 at the upper part and the lower part of the periphery of the pipeline at each position. The horizontal burying interval of the soil pressure boxes 7 is more than 3 times of the box body interval in principle, the vertical interval and the horizontal interval and the pressure-bearing surface of the soil pressure boxes 7 need to face the test soil body 1 to be measured, and the soil surface bearing the soil pressure boxes 7 needs to be strictly leveled when being buried. Backfilling, wherein the backfilled soil material is the same as the surrounding soil material (stone is removed), and carefully tamping by manual layering; after the test soil body 1 is completely laid, the surface layer is trimmed by a leveling shovel, and a leveling ruler is used for checking to ensure the leveling of the test soil body 1; and (3) taking soil by using a cutting ring, taking six groups of soil samples for later use, and measuring the property parameters of the test soil body 1.
7. The computer 10 controls the electric support rod 15 to ascend and descend to realize the sinking of the test soil body 1; the descending value of each electric supporting rod 15 in each settlement stage is controlled and monitored by the computer 10 according to the test requirements, and the settlement is stopped when the settlement reaches a specified value. In the test process, a data acquisition instrument is used for monitoring and recording pipeline settlement data and pipeline stress change data, after the data in each stage are stable, the change of talcum powder in a soil layer is observed through a toughened glass plate, the settlement of the surface of the test soil body 1 is monitored through a three-dimensional terrain scanner 13, the soil layer displacement data is recorded, and the data are stored in a classified mode.
The utility model has the advantages that:
1. the sinking speed and the sinking amount of different bottom plates are controlled by a computer system, so that tests of different sinking modes such as different sinking speeds, different sinking ranges, different sinking shapes and the like are realized, the stress condition and the deformation condition of the pipeline under different sinking modes are obtained, the test time is saved, the test cost is saved, the practicability is high, and the cost performance is high;
2. the method comprises the following steps of (1) adopting a transparent toughened glass plate, setting mark points, and combining a pull rope type displacement meter, a strain gauge, a three-dimensional terrain scanner, a soil pressure cell, a linear displacement sensor and a data acquisition instrument to record stress, strain and displacement data, so that a displacement field of a soil body and a pipeline and a stress field of the pipeline can be accurately obtained;
3. the restraint parts and the linear displacement sensors are arranged at the two ends of the test box body, so that the two ends of the pipeline are restrained, the axial displacement and the end face rotation data of the pipe end in the test are obtained, the characteristics of the buried pipeline are met, and the test accuracy can be improved.
To sum up, the utility model discloses a test device for simulating the influence of stratum settlement on a pipeline, which comprises a test box body, a test pipeline, a settlement mechanism and a data acquisition device; the test pipeline is arranged in the test box body, and the area except the test pipeline in the test box body is used for containing a test soil body; the sedimentation mechanism is connected with the bottom of the test box body and is used for driving the bottom of the test box body to descend; the data acquisition device is positioned on the surface of the test pipeline and used for acquiring displacement deformation data of the test pipeline. The utility model provides a test device can simulate different modes of subsiding and to pipeline's influence to gather different deformation data that subside pipeline under the mode, be used for the different settling velocity of analysis, different settlement range, difference subside the influence that the stratum subsides to pipe soil interact under the shape, reach the purpose of predicting the destruction condition that the pipeline probably received in advance. The problem of among the prior art can only after the pipeline takes place deformation, can acquire the pipeline because of the deformation data that the stratum subsides and produce, be difficult to collect the influence information of various stratum subsidence modes to the pipeline in advance is solved.
It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (7)
1. A test device for simulating the influence of stratum settlement on a pipeline is characterized by comprising a test box body, a test pipeline, a settlement mechanism and a data acquisition device; the test pipeline is arranged in the test box body, and the area except the test pipeline in the test box body is used for containing a test soil body; the sedimentation mechanism is connected with the bottom of the test box body and is used for driving the bottom of the test box body to descend; the data acquisition device is positioned on the surface of the test pipeline and is used for acquiring displacement deformation data of the test pipeline;
the bottom of the test box body is provided with a flexible pad, the sedimentation mechanism comprises a plurality of movable blocks, the arrangement areas of the movable blocks correspond to the bottom of the test box body, and the movable blocks are respectively used for driving different areas of the bottom of the test box body to descend;
each movable block comprises a movable plate and an electric support rod; the movable plate is positioned below the bottom of the test box body; the electric support rod is positioned below the movable plate and used for driving the movable plate to descend;
the electric support rod is controlled by a computer control system to simulate different stratum settlement conditions;
the data acquisition device comprises two linear displacement sensors which are respectively positioned at different ends of the test pipeline;
each displacement sensor is used for acquiring axial displacement data and end face rotation data of one end of the test pipeline.
2. The test device for simulating the influence of the stratum sedimentation on the pipeline as claimed in claim 1, wherein two side surfaces of the test box body are respectively provided with a through hole, the diameter of each through hole is larger than or equal to the diameter of the test pipeline, a restraining device is arranged outside each through hole, and each restraining device is used for fixing one end of the test pipeline and one through hole.
3. The test device for simulating the effect of formation settlement on a pipeline according to claim 1, wherein the data acquisition device comprises at least one pipeline displacement monitoring device; and when the number of the pipeline displacement monitoring devices is a plurality, the pipeline displacement monitoring devices are respectively positioned at different positions on the test pipeline.
4. The test device for simulating the influence of stratum settlement on the pipeline as claimed in claim 1, wherein the data acquisition device comprises at least one pipeline strain monitoring device; when the number of the pipeline strain monitoring devices is a plurality, the pipeline strain monitoring devices are respectively positioned at different positions on the test pipeline.
5. The test device for simulating the influence of stratum settlement on the pipeline as claimed in claim 1, wherein the data acquisition device comprises at least one soil pressure monitoring device; when the number of the soil body pressure monitoring devices is a plurality, the soil body pressure monitoring devices are respectively positioned in the soil bodies corresponding to different positions on the test pipeline.
6. The test device for simulating the influence of the stratum sedimentation on the pipeline as claimed in claim 1, wherein the device further comprises a three-dimensional topography scanner, the three-dimensional topography scanner is located above the test box body and is used for detecting the surface sedimentation condition of the soil body in the test box body.
7. The test device for simulating the influence of stratum settlement on the pipeline as claimed in claim 1, wherein at least one of the front surface and the back surface of the test box body is a transparent tempered glass plate.
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