Residential building foundation pit foundation slope pipe network sinking test device and method thereof

Abstract

The invention discloses a residence construction foundation pit foundation slope pipe network sinking test device and method. The residence construction foundation pit foundation slope pipe network sinking test device comprises a slope structure. The pipe structure is inserted and fixed in the slope structure; the support structure is arranged outside the slope structure in a surrounding mode; the motion simulation structure is fixedly arranged on the rear side of the upper portion of the support structure, and the lower portion of the motion simulation structure is in movable contact with the upper surface of the slope structure; the rain simulation structure is fixedly arranged on the front side of the upper portion of the support structure and provided with a plurality of sprayers used for spraying water to the slope structure; through the arrangement of the side slope structure, the pipe structure, the support structure, the motion simulation structure and the rain simulation structure, progressive increase gravity and vibration simulation, flow simulation in a sedimentation pipe body and rainfall simulation can be achieved, environmental factors influencing a side slope pipe network sinking test are perfected, the real side slope pipe network sinking environment is further copied, and meanwhile the test efficiency is improved. The sinking state of the pipe network can be monitored in real time, and the situation that a test slope collapses is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of residential construction, in particular to a residential construction foundation pit foundation slope pipe network sinking test device and method. Background Art

[0002] With the acceleration of urbanization, the number of high-rise residential buildings is increasing. During the construction process, the depth of foundation pit excavation is increasing. The stability of the foundation pit support structure has become the key to engineering safety. At the same time, as an important part of urban infrastructure, the stability of underground pipelines is directly related to the quality of life of residents and the normal operation of the city. However, during the construction process, due to the complex and changeable geological conditions, foundation pit excavation may cause uneven settlement of the surrounding soil, which in turn affects the safe operation of the underground pipeline network. Therefore, it is necessary to conduct a foundation pit foundation slope pipeline network sinking test.

[0003] However, the current residential construction foundation pit foundation slope pipeline sinking test device tests often only simulate the uniform sinking of the soil or simple changes in geological conditions, and it is difficult to reproduce the complex working environment in actual construction, such as the dynamic load of construction machinery, surrounding traffic vibration, and the influence of adjacent buildings. These factors may have a significant impact on the stability of the foundation pit and the safety of the underground pipeline network. At the same time, during the test, once an emergency occurs such as soil displacement exceeding expectations or slope instability, the existing test device usually lacks an effective automatic braking mechanism to immediately stop the test, which may cause damage to the test device and collapse of the sample slope.

[0004] Therefore, a device and method for testing the sinking of pipe network on the slope of foundation pit of residential construction are proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a residential construction foundation pit foundation slope pipe network sinking test device and method thereof, so as to solve the problems of few test factors and no automatic braking structure in the residential construction foundation pit foundation slope pipe network sinking test device proposed in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a residential construction foundation pit foundation slope pipe network sinking test device, comprising:

[0007] The slope structure is a test slope randomly selected in the construction pit area. Its specifications are built according to the pit slope data, and sufficient test space is reserved on one side of the slope.

[0008] The pipe structure is inserted and fixed inside the slope structure, and both ends of the pipe protrude from the slope structure;

[0009] The support structure is arranged around the outside of the slope structure, and the lower end of the support structure is inserted and fixed on the ground around the slope structure;

[0010] The motion simulation structure is fixedly arranged on the rear side above the support structure, and the lower side of the motion simulation structure is in active contact with the upper surface of the slope structure;

[0011] The rain simulation structure is fixedly arranged on the front side above the support structure, and a plurality of sprinklers for sprinkling water on the slope structure are evenly arranged on one side of the rain simulation structure facing the slope structure;

[0012] Wherein, the slope structure includes a slope body, a water collecting trough is arranged around the circumference of the slope of the slope body, a water inlet pipe is arranged below the right side of the water collecting trough, and the output end of the water inlet pipe is fixedly connected and arranged at the upper end of the water tank, the water tank is arranged on one side of the slope body, and a movable pipe is fixedly connected and arranged at the middle and upper position of the side of the water tank, a valve seat is integrally arranged at the middle position inside the movable pipe, one side of the valve seat is movably connected to a porous valve plate through a plurality of spring rods, the tip of the porous valve plate is fixed to the cone end rod inside the valve seat, a branch pipe is fixedly connected and arranged on the left side below the side of the movable pipe, and the internal sliding limit of the branch pipe is arranged on a spring piston, the rod end of the spring piston is fixed to the driving cone inside the movable pipe, and the side of the driving cone is in movably contact with the cone end rod;

[0013] The pipe structure comprises a settlement pipe body, which is inserted and fixed at the center of the main slope of the slope, and detection rings are fixedly arranged at both ends of the settlement pipe body;

[0014] The support structure includes a supporting channel steel column, and a wire tube is fixedly arranged between the columns on both sides of the slope on the supporting channel steel column, wherein a wire hole is opened at the center position inside the wire tube on the right side of the slope body, and the inside of the wire tube is rotatably provided with a half gear on both sides of the wire hole, and one side of the half gear is intermittently connected to a laminated rod, the lower end of the laminated rod is fixedly connected to a reset spring, and the lower end of the reset spring is fixed to the inner wall of the wire tube, and the upper end of the laminated rod is fixed to a piston rod, and the upper end of the piston rod is slidably arranged above the inside of the wire tube Inside the opened liquid storage pipeline, a spring plug rod is slidably provided inside the wire tube on one side of the liquid storage pipeline, and the spring plug rod can be inserted into the insertion hole provided on the side of the piston rod. The structural setting of the wire tube located on the left side of the slope body is the same as that of the wire tube on the right side. One of the liquid storage pipelines located on the left side is connected with the branch pipe through a connecting liquid pipe. Wire wheels are provided above both sides of the support channel steel column, and the lower end of the wire pulley is fixed to the detection ring. A laser rangefinder is provided on one side of the wire wheel, and the laser rangefinder is arranged opposite to the detection ring.

[0015] The motion simulation structure includes two linear drive modules, wherein at least one brake socket is provided on the side of the screw end inside one of the linear drive modules, and a spring piston rod is slidably provided above the brake socket on the linear drive module, and the upper end of the through hole where the spring piston rod is located in the linear drive module is connected to one of the liquid storage pipelines inside the wire tube on the right side through a connecting liquid pipe;

[0016] The rain simulation structure includes a spray rack, and a water pump for water supply is installed above the spray rack. The input end of the water pump is fixedly connected with a flow control valve and an emergency stop valve in sequence. The flow control valve and the emergency stop valve have the same structural arrangement, and butterfly valves are rotatably arranged inside. The butterfly valve is fixed to a gear shaft rotatably arranged inside a joint control box, and tooth plates are arranged on both sides of the gear shaft for meshing transmission. The joint control box is fixedly connected to the upper surface of the emergency stop valve, and the interior of the joint control box is connected to one of the liquid storage pipelines inside the wire pipe on the right side through a connecting liquid pipe at the end plate of the tooth plate, and one of the liquid storage pipelines inside the wire pipe on the left side is connected to the interior of the flow control valve through a connecting liquid pipe.

[0017] Preferably, a conical through hole is provided at the center of the valve seat, and the expanded opening is directed toward the water tank.

[0018] Preferably, the porous valve plate is composed of a gyro body and a porous slide plate, and the tip of the gyro body is inserted into the interior of the valve seat, and one end of the conical end rod is configured to be hemispherical and extends to the position of the branch pipe.

[0019] Preferably, both ends of the sedimentation tube body penetrate the slope body, and the detection collar is provided with a detection plate extending toward the slope body.

[0020] Preferably, the supporting channel steel columns are arranged in two rows, and each row is provided with three columns, and each column is inserted on both sides of the slope body according to a predetermined spacing and arrangement distance, and the upper ends of the supporting channel steel columns are connected to the channel steel frame by bolts.

[0021] Preferably, the liquid storage pipeline stores safety liquid inside, a pull rod extending upward and passing through the wire tube is fixedly connected to the upper side of the spring plug rod, and a slide groove is provided on the surface of the wire tube to accommodate the movement of the pull rod. The wire tube located on the left side of the slope body does not have a spring plug rod and a pull rod and their corresponding structures, and the half gear inside the left wire tube is a full-tooth structure.

[0022] Preferably, the linear drive modules are fixedly arranged above the channel steel frame at intervals, and the linear drive modules include a transmission body, a motor, a transmission seat and a screw rod, wherein the lower end of the transmission seat is fixed to the spring rod of the elastic bearing frame, and cooperates with the elastic bearing frame to be movably connected to the simulation roller, one end of the simulation roller is provided with a docking connection interface for pressure docking communication, and the docking connection interface is controlled by an electric telescopic rod to reciprocate, the base of the electric telescopic rod is fixed to the surface of the elastic bearing frame, the output end of the docking connection interface is connected to the liquid supply box through a retractable safety liquid supply pipe, the interior of the liquid supply box stores safe weight-increasing liquid, and is fixed to the side of the channel steel frame by bolts, the screw rod is rotatably arranged inside the transmission body, and cooperates with the motor to linearly drive the transmission seat which is also slidably arranged inside the transmission body.

[0023] Preferably, the spray rack is fixedly connected to the front side above the channel steel frame, and a sprinkler head for sprinkling water is arranged on the bottom surface corresponding to the slope of the slope body, a claw-shaped water pipe rack is fixedly connected to the upper surface of the spray rack, and a water pump is installed at the main pipe end of the water pipe rack.

[0024] A method for sinking test of pipe network on foundation slope of residential construction foundation pit, the specific steps are as follows:

[0025] A test site is randomly selected in the construction pit area, and a slope structure is constructed, the specifications of which are the same as the pit slope data. After the slope structure is constructed, the pipe structure, support structure, motion simulation structure and rain simulation structure are arranged around the slope structure simultaneously, and the input end of the rain simulation structure and the output end of the pipe structure are connected to the water supply pipeline and the recovery pipeline respectively, and then the test operation can be carried out;

[0026] During the test, the motion simulation structure will roll back and forth on the surface of the slope structure in a straight line, and after a predetermined number of reciprocating rolls, it will be filled with liquid to increase weight, and then roll again on the surface of the slope structure to simulate the effects of different gravity and synchronous vibrations on the settlement of the slope structure and the pipe structure under human activities or work activities;

[0027] The slope structure and the pipe structure will sink slightly due to the motion simulation structure, and the sinking of the pipe structure will indirectly drive the gradual opening of the rain simulation structure and the output end of the pipe structure, so that the flow inside the rain simulation structure and the pipe structure will gradually increase. Correspondingly, the amount of water sprinkled by the rain simulation structure on the surface of the slope structure and the amount of water output through the pipe structure will increase, thereby simulating the influence of different rainwater scouring on the slope structure and different flow flows in the pipe network on the settlement of the slope structure and the pipe structure.

[0028] In the event of an emergency, if the slope structure and the pipe structure sink excessively or quickly in a short period of time, the pipe structure will synchronously feedback to the motion simulation structure and the rain simulation structure in the form of hydraulics to brake and close the motion simulation structure and the rain simulation structure to avoid continuing the test and causing the collapse of the slope structure.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The present invention can simulate the sinking of the main body of the slope caused by human beings and construction activities in the form of surface rolling under the reciprocating drive of the linear drive module, through the arrangement of a linear drive module, a transmission seat, an elastic bearing frame, a simulation roller, a docking connection interface, an electric telescopic rod, a safety liquid supply pipe and a liquid supply box. At the same time, the intermittent step-by-step pressurization working mode can further reflect the influence of different gravity conditions and vibration on the main body of the slope, so as to improve the accuracy and integrity of the sinking simulation data;

[0031] 2. The present invention can simulate the reciprocating motion of the roller and the increase of weight, while simulating the sinking test of the slope main body and the sinking pipe body, and according to the dynamic sinking state of the sinking pipe body, the wire wheel and the wire are used to cooperate with the wire wheel and the wire to drive the half gear to rotate by friction, and use the half gear to push the laminated rod and the piston rod to move upward, so as to realize the sinking test of the liquid storage pipeline. The internal safety liquid is transported to the branch pipe and the joint control box. The liquid entering the branch pipe will push the spring piston and the driving cone upward, so that the driving cone pushes the porous valve plate to move away from the valve seat along the inclined path, so as to gradually open the valve seat and gradually increase the flow inside the settlement pipe body. In this way, the simulation of the settlement pipe body under different flow conditions can be realized, and the test factors existing in the settlement pipe body can be filled. The liquid entering the joint control box will push the tooth plate to drive the gear shaft in the form of hydraulic pressure, so as to realize the driving deflection of the butterfly valve, so as to control the water spraying amount of the spray rack, and simulate the sinking of the slope body and the settlement pipe body under different degrees of rain, so as to further improve the data of the pipe network sinking test;

[0032] 3. The present invention can use the arrangement of the settlement tube body, the detection collar, the support channel steel column, the wire tube, the wire hole, the half gear, the laminated rod, the reset spring, the piston rod, the liquid storage pipeline, the spring plug rod, the wire wheel, the pulley, the linear drive module, the screw rod, the brake socket, the spring piston plug rod, the emergency stop valve, the joint control box, the gear shaft, the gear plate and the butterfly valve. When the slope body and the settlement tube body sink excessively or quickly in a short period of time, the friction force can be used to quickly perform friction transmission on the half gears on both sides, so that the half gears can push the laminated rod and the piston rod upward with continuous intermittent transmission, and in the process of moving upward, the liquid in the liquid storage pipeline is transported to the inside of the joint control box of the emergency stop valve and the space where the spring piston plug rod is located. In combination with the hydraulic method, the butterfly valve is closed and the spring piston plug rod is braked on the screw rod, so that the shower test and the simulated roller rolling test can be stopped urgently, and the excessive sinking or collapse of the slope body can be avoided, so as to ensure that the test is within a safe and controllable range.

[0033] In summary, through the setting of slope structure, pipe structure, support structure, motion simulation structure and rain simulation structure, it is possible to perform incremental gravity and vibration simulation, flow simulation in the settlement pipe body and rainfall simulation, improve the environmental factors affecting the slope pipe network sinking test, further replicate the real environment of the slope pipe network sinking, and improve the authenticity, accuracy and completeness of the slope pipe network sinking test data. At the same time, the state of pipe network sinking can be monitored in real time. In case of emergencies, the device can be braked in time to avoid collapse of the test slope. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A three-dimensional structural view of the present invention;

[0035] Figure 2 This is a schematic diagram of the structure after the main body of the slope is removed according to the present invention;

[0036] Figure 3 It is a schematic diagram of the motion simulation structure of the present invention;

[0037] Figure 4 is a cross-sectional view of a linear drive module of the present invention;

[0038] Figure 5 It is a schematic diagram of the slope structure, pipe structure, support structure and rain simulation structure of the present invention;

[0039] Figure 6 is a cross-sectional view of the wire tube of the present invention;

[0040] Figure 7 It is a cross-sectional view of the movable tube of the present invention;

[0041] Figure 8 It is a cross-sectional view of the flow control valve and the emergency stop valve of the present invention.

[0042] In the figure:

[0043] 1. Slope structure; 11. Slope body; 12. Water collection tank; 121. Water inlet pipe; 13. Water tank; 14. Movable pipe;

[0044] 141, branch pipe; 142, valve seat; 143, porous valve plate; 144, spring rod; 145, cone end rod; 146, driving cone; 147, spring piston;

[0045] 2. Tube structure; 21. Settling tube body; 211. Detection collar;

[0046] 3. Support structure; 31. Support channel steel column; 311. Wire tube; 3111. Wire hole; 3112. Half gear; 3113. Laminated rod; 3114. Return spring; 3115. Piston rod; 3116. Liquid storage pipeline; 3117. Spring plug rod; 3118. Pull rod; 32. Channel steel frame; 321. Wire wheel; 322. Pull wire; 323. Laser rangefinder;

[0047] 4. Motion simulation structure; 41. Linear drive module; 411. Transmission seat; 412. Elastic bearing frame; 413. Screw rod;

[0048] 414, brake socket; 415, spring piston rod; 42, simulated roller; 421, docking connection interface; 422, electric telescopic rod; 423, safety liquid supply pipe; 43, liquid supply tank;

[0049] 5. Rain simulation structure; 51. Spray rack; 52. Water pipe rack; 53. Water pump; 54. Flow control valve; 55. Emergency stop valve; 551. Joint control box; 552. Gear shaft; 553. Gear plate; 554. Butterfly valve; 56. Connecting liquid pipe. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] See also Figures 1 to 8 The present invention provides a technical solution of a residential construction foundation pit foundation slope pipe network sinking test device and method thereof:

[0052] A residential construction foundation pit foundation slope pipe network sinking test device, comprising:

[0053] Slope structure 1 is a test slope randomly selected in the construction pit area. Its specifications are built according to the pit slope data, and sufficient test space is reserved on one side of the slope.

[0054] The pipe structure 2 is inserted and fixed inside the slope structure 1, and both ends of the pipe protrude from the slope structure 1;

[0055] The support structure 3 is arranged around the outside of the slope structure 1, and the lower end of the support structure 3 is inserted and fixed on the ground around the slope structure 1;

[0056] The motion simulation structure 4 is fixedly arranged on the rear side above the support structure 3, and the lower part of the motion simulation structure 4 is in active contact with the upper surface of the slope structure 1;

[0057] The rain simulation structure 5 is fixedly arranged on the front side above the support structure 3 , and a plurality of sprinklers for sprinkling water on the slope structure 1 are evenly arranged on one side of the rain simulation structure 5 facing the slope structure 1 .

[0058] The slope structure 1 comprises a slope body 11, and the slope body 11 is composed of a front slope and a rear test soil body.

[0059] The pipe structure 2 includes a sedimentation pipe body 21. The sedimentation pipe body 21 is a conventional pipe network pipe body and is inserted and fixed in the center position of the slope of the slope main body 11. Both ends of the sedimentation pipe body 21 pass through the slope main body 11, and a detection ring 211 is fixedly provided on the side of the passing end. The detection ring 211 has a detection plate extending toward the slope main body 11.

[0060] The support structure 3 includes support channel steel columns 31 . The support channel steel columns 31 are arranged in two rows, and each row is provided with three columns. Each column is inserted at both sides of the slope body 11 according to a predetermined spacing and arrangement distance.

[0061] The motion simulation structure 4 includes a linear drive module 41, two of which are a group and are fixedly arranged above the channel steel frame 32 at intervals. The linear drive module 41 includes a transmission body, a motor, a transmission seat 411 and a screw rod 413, wherein the lower end of the transmission seat 411 is fixed to the spring telescopic rod of the elastic bearing frame 412, and cooperates with the elastic bearing frame 412 to be movably connected to the simulation roller 42, one end of the simulation roller 42 is provided with a docking connection interface 421 for pressure docking communication, and the docking connection interface 421 is controlled by the electric telescopic rod 422 to reciprocate, the base of the electric telescopic rod 422 is fixed to the surface of the elastic bearing frame 412, the output end of the docking connection interface 421 is connected to the liquid supply box 43 through a retractable safety liquid supply pipe 423, the liquid supply box 43 stores safe weight-increasing liquid inside, and is fixed to the side of the channel steel frame 32 by bolts, the screw rod 413 is rotatably arranged inside the transmission body, and cooperates with the motor to linearly drive the transmission seat 411 which is also slidably arranged inside the transmission body.

[0062] During operation, first, the linear drive module 41 will drive the simulated roller 42 to move along the surface of the slope main body 11 through the transmission seat 411 and the elastic bearing frame 412. At this time, the slope main body 11 does not have the surface of the weighted liquid inside. During the movement, the gravity of the simulated roller 42 itself and the vibration force during the rolling process will be applied to the surface of the slope main body 11 and diffuse to the slope position of the slope main body 11. At this time, what is simulated is the sinking effect of the slope main body 11 and the pipe structure 2 in a light state. After the linear drive module 41 drives the simulated roller 42 to roll along the slope main body 11 for multiple reciprocating times, the electric telescopic rod 422 will pull the docking connection interface 421 to dock and connect, and then the weighted liquid inside the liquid supply box 43 will flow into the simulated roller 42 along the safety liquid supply pipe 423 to increase the weight of the simulated roller 42, and the weighted simulated roller 42 will continue to perform the above-mentioned rolling operation, thereby simulating the impact of different gravity conditions and vibration on the slope main body 11 and the pipe structure 2.

[0063] In summary, through the arrangement of the linear drive module 41, the transmission seat 411, the elastic bearing frame 412, the simulation roller 42, the docking connection interface 421, the electric telescopic rod 422, the safety liquid supply pipe 423 and the liquid supply box 43, the sinking simulation of the slope body 11 caused by human beings and construction activities can be performed in the form of surface rolling under the reciprocating drive of the linear drive module 41. At the same time, the intermittent step-by-step pressurization working mode can be used to further reflect the effects of different gravity conditions and vibration on the slope body 11, so as to improve the accuracy and completeness of the sinking simulation data.

[0064] As an embodiment of the present invention, Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a water collecting trough 12 is arranged around the circumference of the slope, and an S-shaped water inlet pipe 121 for outward output is arranged at the lower right side of the water collecting trough 12, and the output end of the water inlet pipe 121 is fixedly connected to the upper end of the water tank 13, the water tank 13 is arranged on one side of the slope body 11, and a through hole that penetrates outward is opened at the middle and upper position of the side of the water tank 13, and a movable pipe 14 is fixedly arranged at the position of the through hole, and a valve seat 142 is integrally arranged at the middle position inside the movable pipe 14, and a conical through hole is opened at the center position of the valve seat 142, and the expansion is toward the direction of the water tank 13, the interior of the movable pipe 14 is movably connected to the porous valve plate 143 at the expansion side of the valve seat 142 through a plurality of spring rods 144, and the porous The valve plate 143 is composed of a gyroscope and a porous slide plate, and the tip of the gyroscope is inserted into the inside of the valve seat 142, and a conical end rod 145 is fixed to the tip of the gyroscope. One end of the conical end rod 145 is set in a hemispherical shape and extends to the position of the branch pipe 141. The branch pipe 141 is integrally connected and arranged on the left side below the side of the movable tube 14, and the internal sliding limit of the branch pipe 141 is set on the spring piston 147. The rod end of the spring piston 147 extends upward into the interior of the movable tube 14 and is fixed to the driving cone 146 inside the movable tube 14. The side of the driving cone 146 is in movably contact with the conical end rod 145, and the output end of the movable tube 14 is movably connected with the sedimentation tube body 21 through a soft connecting tube.

[0065] The support channel steel column 31 is fixedly provided with a wire tube 311 between the columns on both sides of the slope of the slope body 11, wherein the structure of the wire tube 311 on the left side of the slope body 11 is the same as that of the wire tube 311 on the right side, but does not have the spring plug rod 3117 and the pull rod 3118 and their corresponding structures, and the half gear 3112 inside the left wire tube 311 is a full-tooth structure, and one of the liquid storage pipelines 3116 on the left side is connected to the branch pipe 141 through the connecting liquid pipe 56, and the upper end of the support channel steel column 31 is connected to the branch pipe 141 through the connecting liquid pipe 56. It is connected to the channel steel frame 32 by bolts, and wire wheels 321 are installed on both sides of the channel steel frame 32 at positions corresponding to the slopes of the slope body 11. A pull wire 322 is wound inside the wire wheel 321, and the lower end of the pull wire 322 passes through the wire tube 311 and is fixed to the detection ring 211, and the surface of the pull wire 322 has anti-slip textures, and a laser rangefinder 323 is arranged on one side of the wire wheel 321, and the laser rangefinder 323 is fixedly arranged at the bottom of the channel steel frame 32 and is arranged directly opposite to the detection plate of the detection ring 211.

[0066] The rain simulation structure 5 includes a spray rack 51, which is fixedly connected to the front side above the channel steel frame 32, and a sprinkler head for sprinkling water is arranged on the bottom surface corresponding to the slope of the slope body 11. A claw-shaped water pipe rack 52 is fixedly connected to the upper surface of the spray rack 51, and a water pump 53 is installed at the main pipe end of the water pipe rack 52. The base of the water pump 53 is connected to the upper surface of the spray rack 51 by bolts. The input end of the water pump 53 is fixedly connected to a flow control valve 54 and an emergency stop valve 55 in sequence. The flow control valve 54 and the emergency stop valve 55 have the same structural settings. One of the liquid storage pipelines 3116 inside the wire pipe 311 on the left is connected to the inside of the flow control valve 54 through a connecting liquid pipe 56.

[0067] During operation, the sedimentation pipe body 21 will sink to varying degrees along with the slope main body 11. The sinking sedimentation pipe body 21 will pull the pull wire 322 downward through the water inlet pipe 121, wherein the pull wire 322 on the left side will move downward along the wire hole 3111 of the left wire pipe 311, and during the movement, the friction force will drive the half gears 3112 on both sides to rotate, and the rotating half gears 3112 will drive the laminated rod 3113 and the piston rod 3115 to move upward, and the piston rod 3115 will push the safety liquid inside the liquid storage pipeline 3116 into the joint control box 551 and the branch pipe 141 of the flow control valve 54 respectively, wherein the liquid entering the joint control box 551 will push the tooth plate 553 to move toward the middle, so that the tooth plate 553 drives the gear shaft 552 to drive the butterfly valve 554 to gradually rotate and expand, and then the water flow through the flow control valve 54 will gradually increase. As the amount of water entering the water pipe rack 52 and the spray rack 51 and spraying onto the surface of the slope body 11 gradually increases, the amount of water entering the water pipe rack 52 and the spray rack 51 and spraying onto the surface of the slope body 11 will gradually increase, thereby cooperating with the motion simulation structure 4 to simulate the influence of different degrees of rain on the sinking of the slope body 11 and the sedimentation pipe body 21. At the same time, the safety liquid entering the branch pipe 141 will push up the spring piston 147, causing it to push the driving cone 146 to move upward, and the driving cone 146 will gradually push the cone end rod 145 to move to the right during the movement. The right-moving cone end rod 145 will drive the porous valve plate 143 to stretch the spring rod 144 to move to the right, and then the cone of the porous valve plate 143 will gradually move out from the inside of the valve seat 142, and the open space of the valve seat 142 will gradually increase, and the water flow rate entering the sedimentation pipe body 21 through the valve seat 142 will gradually increase, thereby simulating the working state of the sedimentation pipe body 21 under different flow rates.

[0068] In summary, through the water collecting tank 12, the water inlet pipe 121, the water tank 13, the movable pipe 14, the branch pipe 141, the valve seat 142, the porous valve plate 143, the spring rod 144, the cone end rod 145, the driving cone 146, the spring piston 147, the sedimentation tube body 21, the detection collar 211, the support channel steel column 31, the wire tube 311, the wire hole 3111, the half gear 3112, the laminated rod 3113, the reset spring 3114, the piston rod 3115, the liquid storage pipeline 3116, The arrangement of the wire wheel 321, the wire 322, the spray rack 51, the water pipe rack 52, the water pump 53, the flow control valve 54, the joint control box 551, the gear shaft 552, the tooth plate 553 and the butterfly valve 554 can simulate the reciprocating motion of the roller 42 and the weight increase. At the same time, according to the dynamic sinking state of the settlement tube 21, the wire wheel 321 and the wire 322 are coordinated to drive the half gear 3112 to rotate by friction, and the half gear 3112 is driven to rotate by friction. The gear 3112 pushes the laminated rod 3113 and the piston rod 3115 upward to realize the delivery of the safety liquid in the liquid storage pipeline 3116 to the branch pipe 141 and the joint control box 551. The liquid entering the branch pipe 141 pushes the spring piston 147 and the driving cone 146 upward, so that the driving cone 146 pushes the porous valve plate 143 to move away from the valve seat 142 along the inclined path, so as to gradually open the valve seat 142, so that the flow inside the sedimentation tube body 21 The amount gradually increases, thereby realizing the simulation of the sedimentation pipe body 21 under different flow conditions, filling the test factors existing in the sedimentation pipe body 21, and the liquid entering the joint control box 551 will push the gear plate 553 to drive the gear shaft 552 in the form of hydraulic pressure, realizing the driving deflection of the butterfly valve 554, so as to control the water spraying amount of the spray rack 51, and simulate the sinking of the slope main body 11 and the sedimentation pipe body 21 under different degrees of rainwater, so as to further improve the data of the pipe network sinking test.

[0069] As an embodiment of the present invention, Figures 1 to 8As shown, a through wire hole 3111 is provided at the center position of the wire tube 311 located on the right side of the slope body 11, and a connected wheel groove is provided on both sides of the wire hole 3111 in the wire tube 311, and a half gear 3112 is rotatably provided in the wheel groove, and a laminated rod 3113 is intermittently transmission-connected on one side of the half gear 3112 in the wire tube 311, and the lower end of the laminated rod 3113 is fixedly connected to a return spring 3114, and the lower end of the return spring 3114 is fixed to the inner wall of the wire tube 311, and the upper end of the laminated rod 3113 is fixed to a piston rod 3115, and the upper end of the piston rod 3115 is slidably provided on the inner wall of the wire tube 311. A liquid storage pipeline 3116 is opened above the inside of the wire tube 311, and safety liquid is stored in the liquid storage pipeline 3116. A through telescopic hole is opened above the inner wall of the liquid storage pipeline 3116 away from the side of the slope body 11, and a spring plug rod 3117 is provided in the internal sliding limit of the telescopic hole. The spring plug rod 3117 can be inserted into the insertion hole opened on the side of the piston rod 3115 to lock the piston rod 3115. A pull rod 3118 extending upward and passing through the wire tube 311 is fixedly connected to the upper side of the spring plug rod 3117, and a slide groove that meets the movement of the pull rod 3118 is opened on the surface of the wire tube 311.

[0070] One end of the side surface of the lead screw 413 of one of the linear drive modules 41 is provided with at least one brake hole 414 along the annular array of the axis core, and the linear drive module 41 is provided with an irregular through hole vertically above the brake hole 414, and a spring piston rod 415 is slidingly limitedly provided inside the through hole, and the upper end of the through hole where the spring piston rod 415 is located is connected to one of the liquid storage pipelines 3116 located inside the wire tube 311 on the right side through a connecting liquid pipe 56.

[0071] The emergency stop valve 55 is internally rotatably provided with a butterfly valve 554 for sealing the water channel, the butterfly valve 554 is internally fixed with a shaft for driving, and the upper end of the shaft extends into the interior of the joint control box 551, and is fixed to a gear shaft 552 rotatably provided inside the joint control box 551, the joint control box 551 is fixedly connected to the upper surface of the emergency stop valve 55, and the interior of the joint control box 551 is provided with an L-shaped tooth plate 553 for meshing transmission on both sides of the gear shaft 552, and the surface of the joint control box 551 is provided with a through hole inwardly at the end plate of the tooth plate 553, and is connected to one of the liquid storage pipelines 3116 located inside the wire pipe 311 on the right side through the through hole and the connecting liquid pipe 56.

[0072] During operation, if the sedimentation tube body 21 sinks excessively or quickly in a short period of time during the test, the sedimentation tube body 21 will pull the pull line 322 on the right side to move downward quickly through the detection ring 211, so that the line wheel 321 can quickly release the line. In a short period of time, the length of the line passing through the line hole 3111 increases abnormally, and the pull line 322 will quickly drive the half gears 3112 on both sides to rotate through friction, and the half gears 3112 drive the laminated rod 3113 and the piston rod 3115 to move upward, and push the liquid in the liquid storage pipeline 3116 into the joint control box 551 of the emergency stop valve 55 and the space where the spring piston rod 415 is located during the upward movement. The liquid entering the joint control box 551 will push the tooth plate 553 to move quickly toward the middle, and the tooth plate 553 will quickly mesh with the gear shaft 552 during the movement. The rotating gear shaft 552 will drive the butterfly valve 554 to rotate and close quickly, so that the emergency stop valve 55 can be quickly blocked and the shower simulation can be urgently stopped. At the same time, the liquid entering the space where the spring piston rod 415 is located will push the spring piston rod 415 to move downward and insert into the brake socket 414 opened on the side of the screw rod 413, so as to urgently brake the screw rod 413, so as to brake the simulation roller 42 and prevent the simulation roller 42 from continuing to move and aggravating the sinking of the slope body 11.

[0073] In summary, by setting the settling pipe body 21, the detection collar 211, the supporting channel steel column 31, the wire tube 311, the wire hole 3111, the half gear 3112, the laminated rod 3113, the reset spring 3114, the piston rod 3115, the liquid storage pipeline 3116, the spring plug rod 3117, the wire wheel 321, the pull wire 322, the linear drive module 41, the screw rod 413, the brake socket 414, the spring piston plug rod 415, the emergency stop valve 55, the joint control box 551, the gear shaft 552, the tooth plate 553 and the butterfly valve 554, when the slope body 11 and the settling pipe body 21 sink excessively or quickly in a short period of time, the friction force can be used to , quickly frictionally transmit the half gears 3112 on both sides, so that the half gears 3112 are continuously and intermittently transmitted, pushing the laminated rod 3113 and the piston rod 3115 upward, and in the process of moving upward, the liquid in the liquid storage pipeline 3116 is transported to the inside of the joint control box 551 of the emergency stop valve 55 and the space where the spring piston rod 415 is located, and the butterfly valve 554 is closed and the spring piston rod 415 is connected to the screw rod 413 by the hydraulic method, so as to stop the shower test and the simulated roller 42 rolling test urgently, avoid excessive sinking or collapse of the slope body 11, and ensure that the test is within a safe and controllable range.

[0074] Working principle: When working, first randomly select a test site in the construction pit area, and construct the slope body 11, whose specifications are the same as the foundation pit slope data, and ensure that the slope body 11 has space for the simulation roller 42 to move. After the slope body 11 is built, the slope structure 1, the pipe structure 2, the support structure 3, the motion simulation structure 4 and the rain simulation structure 5 are arranged around the slope body 11 simultaneously, and the input end of the emergency stop valve 55 and the output end of the sedimentation pipe body 21 are connected to the water supply pipeline and the recovery pipeline respectively, and the test operation can be carried out; during the test, the linear drive module 41 will first drive the simulation roller 42 along the slope body 11 through the transmission seat 411 and the elastic bearing frame 412. At this time, there is no water inside the slope body 11. The surface of the weighted liquid moves. During the movement, the gravity of the simulated roller 42 itself and the vibration force during the rolling process will be applied to the surface of the slope body 11 and diffuse to the slope position of the slope body 11. At this time, what is simulated is the sinking effect of the slope body 11 and the pipe structure 2 in a light state. After the linear drive module 41 drives the simulated roller 42 to roll along the slope body 11 for multiple reciprocating cycles, the electric telescopic rod 422 will pull the docking connection interface 421 to dock and connect, and then the weighted liquid inside the liquid supply box 43 will flow into the simulated roller 42 along the safety liquid supply pipe 423 to increase the weight of the simulated roller 42, and the weighted simulated roller 42 will continue to perform the above-mentioned rolling operation, so as to simulate the sinking of the slope body 11 under different gravity conditions and vibration. The slope body 11 and the pipe structure 2 are affected by the laser rangefinder 323. At the same time, the laser rangefinder 323 will detect the state of the detection ring 211 in real time, and feedback the sinking data of the settlement pipe body 21. The settlement pipe body 21 will sink to varying degrees along with the slope body 11. The sinking settlement pipe body 21 will pull the pull wire 322 downward through the water inlet pipe 121, wherein the pull wire 322 on the left side will move downward along the wire hole 3111 of the left wire tube 311, and during the movement, the friction force will drive the half gears 3112 on both sides to rotate, and the rotating half gears 3112 will mesh with the laminated rod 3113 and push the laminated rod 3113 upward along the channel inside the wire tube 311. At this time, due to the short sinking distance and slow sinking, the laminated rod 311 on the right side 3 will be reset under the action of the reset spring 3114, the upwardly moving laminated rod 3113 will synchronously push the piston rod 3115 upward, and the piston rod 3115 will push the safety liquid in the liquid storage pipeline 3116 into the corresponding connecting liquid pipe 56, and enter the joint control box 551 and the branch pipe 141 of the flow control valve 54 along the connecting liquid pipe 56, wherein the liquid entering the joint control box 551 will push the tooth plate 553 to move toward the middle, and the tooth plate 553 will mesh with the gear shaft 552 during the movement, and the rotating gear shaft 552 will drive the butterfly valve 554 to gradually rotate and expand, and then the water flow through the flow control valve 54 will gradually increase, and the amount of water entering the water pipe rack 52 and the spray rack 51 to be sprinkled onto the surface of the slope body 11 will gradually increase,In this way, the motion simulation structure 4 can be used to simulate the influence of different degrees of rainwater on the sinking of the slope body 11 and the sedimentation pipe body 21. At the same time, the rainwater will flow into the interior of the water collecting trough 12 along the slope body 11, and enter the interior of the water inlet pipe 121 along the water collecting trough 12. Previously, a certain amount of water was stored in the water collecting trough 12. Since the output end of the sedimentation pipe body 21 is changed from a closed state to an open state, at this time, the water stored in the water tank 13 will flow into the movable pipe 14, and the water tank 13 will have a negative pressure environment due to the loss of water. Then the water tank 13 will suck the rainwater stored in the water collecting trough 12 through the water inlet pipe 121, and then the rainwater will continue to enter the interior of the sedimentation pipe body 21 along the initial gap between the valve seat 142 and the porous valve plate 143, and along the sedimentation pipe body 21. The downcomer body 21 flows out to the inside of the recovery pipeline, and the safety liquid entering the branch pipe 141 pushes up the spring piston 147, causing it to push the driving cone 146 to move upward. During the movement, the driving cone 146 will gradually push the cone end rod 145 to move to the right, and the cone end rod 145 moving right will drive the porous valve plate 143 to stretch the spring rod 144 to move right, and then the cone of the porous valve plate 143 will gradually move out from the inside of the valve seat 142, and the open space of the valve seat 142 will gradually increase, and the water flow entering the sedimentation pipe body 21 through the valve seat 142 will gradually increase, so that the working simulation of the sedimentation pipe body 21 at different flow rates can be realized until the whole test process is completed, and then the results under the combined effects of rain, gravity, vibration and fluid in the pipe can be obtained. More complete test data, and during the test process, if the sedimentation tube body 21 sinks excessively or quickly in a short period of time, the sedimentation tube body 21 will pull the pull line 322 on the right side through the detection ring 211 to move downward quickly, so that the line wheel 321 quickly releases the line, and the line length passing through the line hole 3111 increases abnormally in a short period of time, and the pull line 322 will quickly drive the half gears 3112 on both sides to rotate through friction, and the half gears 3112 will continue to perform intermittent upload of the stacking rod 3113. Since the pull line 322 moves faster, the friction drive of the half gear 3112 is faster. At this time, the reset spring 3114 has not driven the stacking rod 3113 to reset in time, so that the stacking rod 3113 pushes the piston rod 3115 to move upward, and pushes during the upward movement. The liquid in the liquid storage pipeline 3116 enters the corresponding connecting liquid pipe 56, and enters the space inside the joint control box 551 of the emergency stop valve 55 and the spring piston rod 415 along the connecting liquid pipe 56. When the piston rod 3115 is pushed by the laminated rod 3113 to move to the position of the spring rod 3117, the spring rod 3117 will be inserted into the jack on the side of the piston rod 3115 under the action of the spring to position the piston rod 3115. The liquid entering the joint control box 551 will push the tooth plate 553 to move quickly toward the middle, and the tooth plate 553 will quickly mesh with the gear shaft 552 during the movement. The rotating gear shaft 552 will drive the butterfly valve 554 to rotate and close quickly, so that the emergency stop valve 55 can be quickly blocked.The shower simulation is stopped urgently. At the same time, the liquid entering the space where the spring piston rod 415 is located will push the spring piston rod 415 downward and insert into the brake socket 414 opened on the side of the screw rod 413 to perform emergency braking on the screw rod 413, thereby braking the simulation roller 42 to prevent the simulation roller 42 from continuing to move and aggravating the sinking of the slope body 11.

[0075] A method for sinking test of pipe network on foundation slope of residential construction foundation pit, the specific steps are as follows:

[0076] A test site is randomly selected in the construction pit area, and a slope structure 1 is constructed, the specification of which is the same as the pit slope data. After the slope structure 1 is constructed, the pipe structure 2, the support structure 3, the motion simulation structure 4 and the rain simulation structure 5 are arranged around the slope structure 1 simultaneously, and the input end of the rain simulation structure 5 and the output end of the pipe structure 2 are connected to the water supply pipeline and the recovery pipeline respectively, and then the test operation can be carried out;

[0077] During the test, the motion simulation structure 4 will roll back and forth on the surface of the slope structure 1 in a straight line, and after a predetermined number of reciprocating rolls, it will be filled with liquid to increase weight, and then roll again on the surface of the slope structure 1, so as to simulate the influence of different gravity and synchronous vibration under human activities or work activities on the settlement of the slope structure 1 and the pipe structure 2;

[0078] The slope structure 1 and the pipe structure 2 will sink slightly due to the motion simulation structure 4, and the sinking of the pipe structure 2 will indirectly drive the gradual opening of the output end of the rain simulation structure 5 and the pipe structure 2, so that the flow inside the rain simulation structure 5 and the pipe structure 2 will gradually increase. Correspondingly, the amount of water sprayed by the rain simulation structure 5 on the surface of the slope structure 1 and the amount of water output through the pipe structure 2 will increase, thereby simulating the influence of different rainwater scouring on the slope structure 1 and different flow flows in the pipe network on the settlement of the slope structure 1 and the pipe structure 2;

[0079] In case of an emergency, if the slope structure 1 and the pipe structure 2 sink excessively or quickly in a short period of time, the pipe structure 2 will synchronously feedback to the motion simulation structure 4 and the rain simulation structure 5 in the form of hydraulics to brake and close the motion simulation structure 4 and the rain simulation structure 5 to avoid continuing the test and causing the collapse of the slope structure 1.

[0080] It should be noted that the half gear 3112 always has the conditions for friction transmission with the pull wire 322; the inner diameter of the connecting liquid pipe 56 is selected differently according to different needs to achieve the purpose of fast hydraulic response and slow hydraulic response; in order to strengthen the protection of the slope body 11, a protective plate can be fixed on the supporting channel steel column 31 without affecting the slope body 11; the butterfly valve 554 can be replaced by other flow control valve structures, such as: ball type; the present invention mainly tests the vertical sinking of the pipeline network.

[0081] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A residential construction foundation pit foundation slope pipe network sinking test device, comprising: The slope structure (1) is a test slope randomly selected in the construction pit area, the specifications of which are constructed according to the pit slope data, and sufficient test space is reserved on one side of the slope; The pipe structure (2) is inserted and fixed inside the slope structure (1), and both ends of the pipe protrude from the slope structure (1); The support structure (3) is arranged around the outside of the slope structure (1), and the lower end of the support structure (3) is inserted and fixed on the ground around the slope structure (1); it is characterized by further comprising: The motion simulation structure (4) is fixedly arranged on the rear side above the support structure (3), and the lower part of the motion simulation structure (4) is in active contact with the upper surface of the slope structure (1); A rain simulation structure (5) is fixedly arranged on the front side above the support structure (3), and a plurality of sprinklers for sprinkling water on the slope structure (1) are evenly arranged on a side of the rain simulation structure (5) facing the slope structure (1); The slope structure (1) comprises a slope body (11), a water collecting trough (12) is arranged around the side of the slope of the slope body (11), a water inlet pipe (121) is arranged below the right side of the water collecting trough (12), and the output end of the water inlet pipe (121) is fixedly connected to the upper end of a water tank (13), the water tank (13) is arranged on one side of the slope body (11), and a movable pipe (14) is fixedly connected to the upper middle position of the side of the water tank (13), a valve seat (142) is integrally arranged in the middle position inside the movable pipe (14), and the valve seat (142) is arranged on the lower right side of the water collecting trough (12), and the output end of the water inlet pipe (121) is fixedly connected to the upper end of a water tank (13), and the water tank (13) is fixedly connected to the upper middle position of the side of the water tank (13). One side of the movable tube (14) is movably connected to a porous valve plate (143) through a plurality of spring rods (144), the tip of the porous valve plate (143) is fixed to a cone-end rod (145) located inside the valve seat (142), a branch tube (141) is fixedly connected to the left side below the side of the movable tube (14), and the internal sliding limit of the branch tube (141) is set on a spring piston (147), the rod end of the spring piston (147) is fixed to a driving cone (146) inside the movable tube (14), and the side of the driving cone (146) is in movably contact with the cone-end rod (145); The pipe structure (2) comprises a settling pipe body (21), the settling pipe body (21) is inserted and fixed at the center position of the slope of the slope body (11), and detection rings (211) are fixedly arranged at both ends of the settling pipe body (21); The support structure (3) comprises a supporting channel steel column (31), wherein the supporting channel steel column (31) is fixedly provided with a wire tube (311) between the columns on both sides of the slope, wherein a wire hole (3111) is provided at a central position inside the wire tube (311) located on the right side of the slope body (11), and a half gear (3112) is rotatably provided inside the wire tube (311) on both sides of the wire hole (3111), and one side of the half gear (3112) is intermittently connected to a laminated rod (3113), the lower end of the laminated rod (3113) is fixedly connected to a return spring (3114), and the lower end of the return spring (3114) is fixed to the inner wall of the wire tube (311), and the upper end of the laminated rod (3113) is fixed to a piston rod (3115), and the upper end of the piston rod (3115) is slidably provided inside the wire tube (311) and opened above the wire hole (3111). A spring plug rod (3117) is provided inside the liquid storage pipeline (3116) in a sliding manner on one side of the liquid storage pipeline (3116), and the spring plug rod (3117) can be inserted into a plug hole provided on the side of the piston rod (3115). The structure of the wire pipe (311) located on the left side of the slope body (11) is the same as that of the wire pipe (311) on the right side. One of the liquid storage pipelines (3116) located on the left side is connected to the branch pipe (141) through a connecting liquid pipe (56). Wire wheels (321) are provided above both sides of the support channel steel column (31), and the lower end of the pull wire (322) of the wire wheel (321) is fixed to the detection ring (211). A laser rangefinder (323) is provided on one side of the wire wheel (321), and the laser rangefinder (323) is arranged opposite to the detection ring (211). The motion simulation structure (4) comprises two linear drive modules (41), wherein at least one brake socket (414) is provided on the side surface of the end of the lead screw (413) inside one of the linear drive modules (41), and a spring piston plug rod (415) is provided on the linear drive module (41) to be slidably limited above the brake socket (414), and the linear drive module (41) is connected to one of the liquid storage pipelines (3116) inside the wire tube (311) located on the right side through a connecting liquid pipe (56) at the upper end of the through hole where the spring piston plug rod (415) is located. The rain simulation structure (5) comprises a spray rack (51), a water pump (53) for water supply is installed above the spray rack (51), the input end of the water pump (53) is fixedly connected with a flow control valve (54) and an emergency stop valve (55) in sequence, the flow control valve (54) and the emergency stop valve (55) have the same structure, and a butterfly valve (554) is rotatably arranged inside both, the butterfly valve (554) is fixed to a gear shaft (552) rotatably arranged inside a joint control box (551), and the gear shaft (55 2) is provided with toothed plates (553) for meshing transmission on both sides, the joint control box (551) is fixedly connected to the upper surface of the emergency stop valve (55), the interior of the joint control box (551) is connected to one of the liquid storage pipelines (3116) located inside the wire pipe (311) on the right side through a connecting liquid pipe (56) at the end plate of the toothed plate (553), and one of the liquid storage pipelines (3116) located inside the wire pipe (311) on the left side is connected to the interior of the flow control valve (54) through a connecting liquid pipe (56).

2. A residential construction foundation pit foundation slope pipe network sinking test device according to claim 1, characterized in that: A conical through hole is provided at the center of the valve seat (142), and the expanded opening is directed toward the water tank (13).

3. A residential construction foundation pit foundation slope pipe network sinking test device according to claim 1, characterized in that: The porous valve plate (143) is composed of a gyro body and a porous slide plate, and the tip of the gyro body is inserted into the interior of the valve seat (142). One end of the conical end rod (145) is set to be hemispherical and extends to the position of the branch pipe (141).

4. A residential construction foundation pit foundation slope pipe network sinking test device according to claim 1, characterized in that: Both ends of the sedimentation tube body (21) penetrate the slope body (11), and the detection collar (211) is provided with a detection plate extending in the direction of the slope body (11).

5. The device for testing the sinking of a pipe network in a foundation pit slope of a residential construction according to claim 1, characterized in that: The supporting channel steel columns (31) are arranged in two rows, and each row is provided with three columns, and each column is inserted on both sides of the slope body (11) according to a predetermined spacing and arrangement distance, and the upper ends of the supporting channel steel columns (31) are connected to the channel steel frame (32) by bolts.

6. A residential construction foundation pit foundation slope pipe network sinking test device according to claim 1, characterized in that: The liquid storage pipeline (3116) stores safety liquid inside, and a pull rod (3118) extending upward through the wire tube (311) is fixedly connected to the upper side of the spring plug rod (3117), and a sliding groove is provided on the surface of the wire tube (311) to meet the movement of the pull rod (3118). The wire tube (311) located on the left side of the slope body (11) does not have the spring plug rod (3117) and the pull rod (3118) and their corresponding structures, and the half gear (3112) inside the left wire tube (311) is a full-tooth structure.

7. The device for testing the sinking of a pipe network in a foundation pit slope of a residential construction according to claim 1, characterized in that: The linear drive module (41) is fixedly arranged above the channel steel frame (32) at intervals, and comprises a transmission body, a motor, a transmission seat (411) and a screw rod (413), wherein the lower end of the transmission seat (411) is fixed to the spring telescopic rod of the elastic bearing frame (412), and cooperates with the elastic bearing frame (412) to be movably connected to the simulation roller (42), and one end of the simulation roller (42) is provided with a docking connection interface (421) for pressure docking communication, and the docking connection interface (421) is controlled by the electric telescopic rod (422 ) is controlled to reciprocate, the base of the electric telescopic rod (422) is fixed on the surface of the elastic bearing frame (412), the output end of the docking connection interface (421) is connected to the liquid supply box (43) through a retractable safety liquid supply pipe (423), the liquid supply box (43) stores safe weight-increasing liquid inside, and is fixed to the side of the channel steel frame (32) by bolts, the screw rod (413) is rotatably set inside the transmission body, and cooperates with the motor to linearly drive the transmission seat (411) which is also slidably set inside the transmission body.

8. The device for testing the sinking of a pipe network in a foundation pit slope of a residential construction according to claim 1, characterized in that: The spray rack (51) is fixedly connected to the front side above the channel steel frame (32), and a spray head for sprinkling water is arranged on the bottom surface corresponding to the slope of the slope body (11); a claw-shaped water pipe rack (52) is fixedly connected to the upper surface of the spray rack (51), and a water pump (53) is installed at the main pipe end of the water pipe rack (52).

9. A method for sinking test of pipe network on foundation slope of residential construction foundation pit, characterized in that: The device for testing the sinking of a pipe network on the foundation slope of a residential construction foundation pit as described in any one of claims 1 to 8 is used, and the specific steps are as follows: A test site is randomly selected in the construction pit area, and a slope structure (1) is constructed, the specification of which is the same as the pit slope data. After the slope structure (1) is constructed, a pipe structure (2), a support structure (3), a motion simulation structure (4) and a rain simulation structure (5) are simultaneously arranged around the slope structure (1), and the input end of the rain simulation structure (5) and the output end of the pipe structure (2) are connected to the water supply pipeline and the recovery pipeline respectively, and then the test operation can be carried out; During the test, the motion simulation structure (4) will roll back and forth on the surface of the slope structure (1) in a straight line, and after a predetermined number of reciprocating rolls, it will be filled with liquid to increase weight, and then roll again on the surface of the slope structure (1), so as to simulate the influence of different gravity and synchronous vibration under human activities or work activities on the settlement of the slope structure (1) and the pipe structure (2); The slope structure (1) and the pipe structure (2) will slightly sink due to the motion simulation structure (4), and the sinking of the pipe structure (2) will indirectly drive the rain simulation structure (5) and the output end of the pipe structure (2) to gradually open, so that the flow inside the rain simulation structure (5) and the pipe structure (2) will gradually increase. Correspondingly, the amount of water sprayed by the rain simulation structure (5) on the surface of the slope structure (1) and the amount of water output through the pipe structure (2) will both increase, thereby simulating the influence of different rainwater scouring on the slope structure (1) and different flow rates in the pipe network on the settlement of the slope structure (1) and the pipe structure (2); In the event of an emergency, if the slope structure (1) and the pipe structure (2) sink excessively or rapidly in a short period of time, the pipe structure (2) will synchronously feedback to the motion simulation structure (4) and the rain simulation structure (5) in the form of hydraulic pressure, brake and close the motion simulation structure (4) and the rain simulation structure (5), and avoid continuing the test and causing the collapse of the slope structure (1).

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