Simulation test device for construction disturbance effect of adjacent existing lines
By designing a simulation test device for the disturbance effect of construction near existing railway lines, and using drill rods to simulate tunnel excavation, freezing chamber fixation, and laser cutting equipment to cut rock and soil sections, the problem of existing devices being unable to directly observe rock and soil disturbance and tunnel deformation was solved, and high-precision measurement was achieved.
Patent Information
- Application Number
- CN202423073923.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Existing model testing equipment cannot directly observe the disturbance of soil and rock and the deformation of existing tunnels; it can only make estimations, resulting in low measurement accuracy.
A simulation test device for the disturbance effect of construction near existing railway lines was designed. The device simulates tunnel excavation by drilling rods, uses a freezing chamber to fix simulated rock and soil, uses laser cutting equipment to cut the rock and soil cross-section, and uses an industrial camera for direct observation to improve measurement accuracy.
It enables direct detection of the internal structure of simulated soil and rock, avoiding estimation and improving measurement accuracy.
Smart Images
Figure CN223597669U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of geotechnical test technology, concretely to a simulation test device for disturbance effect of construction adjacent to existing line. BACKGROUND
[0002] With the acceleration of urbanization process, the development scale and population inflow of cities in China are increasing, the pace of municipal construction is accelerating, and the corresponding small car ownership is rising, and the problem of urban traffic congestion is increasingly prominent. Because of its unique underground operation mode, subway construction is basically carried out underground, which not only greatly relieves the pressure of urban ground traffic, but also shows significant advantages in urban reconstruction.
[0003] In actual tunnel construction, due to the restriction of underground pipelines and aboveground buildings, new tunnels inevitably appear in the planning process. Especially when the distance between new and old tunnels is too close, the length of the adjacent existing tunnel is long, or even there are multiple adjacent existing tunnels, the construction faces great difficulties and safety hazards. Therefore, it is urgent to conduct in-depth research on the effect of the deformation of surrounding rock and soil caused by new tunnel construction on adjacent existing tunnels, so as to provide sufficient theoretical basis and method suggestions for future construction of such tunnels.
[0004] The research on the influence of new tunnel on adjacent existing tunnel at home and abroad generally stays in the theoretical stage, and the construction conditions are relatively single, so it is difficult to conduct in-depth research on the mechanism under actual complex construction conditions. Because the tunnel is located underground, the existing model test cannot directly observe the disturbance of rock and soil and the deformation of existing tunnel. If displacement meter, strain gauge and other measuring instruments are used, the displacement information of some key points inside can be obtained, but the displacement outside these points can only be estimated. If the measurement points are not selected properly, the results obtained may be quite different from the actual situation. Therefore, it is necessary to make more scientific adjustments during the test to obtain more accurate test structure and data, so a simulation test device for disturbance effect of construction adjacent to existing line is designed to improve the measurement accuracy. CONTENT OF THE UTILITY MODEL
[0005] The utility model aims at providing a simulation test device for disturbance effect of construction adjacent to existing line, to solve the problem that the existing model test device cannot directly observe the disturbance of rock and soil and the deformation of existing tunnel, and can only estimate the disturbance of rock and soil and the deformation of existing tunnel, resulting in low measurement accuracy.
[0006] In order to achieve the above object, the utility model provides the following technical scheme, a kind of adjacent line construction disturbance effect simulation test device: its characterized in that: including pedestal, the surface of the pedestal is fixedly connected with guide rail, the surface of the guide rail is slidably connected with model groove, the bottom of the model groove is slidably connected with support steel plate, the upper surface of the support steel plate is contact connection with simulation rock-soil, the inside of the simulation rock-soil is provided with simulation pipe, the surface of the pedestal is fixedly installed with refrigeration bin, the surface of the refrigeration bin is provided with lifting gate, the surface of the pedestal is fixedly connected with continuous hydraulic cylinder, the piston rod of the continuous hydraulic cylinder is fixedly connected with lifting plate, the surface of the pedestal is fixedly connected with cutting table, the surface of the pedestal is provided with laser cutting equipment, the surface of the pedestal is fixedly installed with industrial camera, the surface of the pedestal is fixedly connected with first motor, the output shaft of the first motor is fixedly connected with screw rod, the surface of the screw rod is threadedly connected with square nut, the surface of the square nut is fixedly connected with support rod, the surface of the support rod is fixedly connected with second motor, the output shaft of the second motor is fixedly connected with drill rod.
[0007] Preferably, the guide rail extends to the inside of the refrigeration bin, the model groove is slid to the inside of the refrigeration bin through the guide rail, and the support steel plate drives the simulation rock-soil to slide to the inside of the refrigeration bin.
[0008] Preferably, the bottom of the model groove is provided with a rectangular hole, the support steel plate is located directly above the rectangular hole of the model groove, and the model groove supports the simulation rock-soil through the support steel plate.
[0009] Preferably, the bottom of the base is provided with a circular hole, the output piston rod of the continuous hydraulic cylinder penetrates the circular hole of the base, the continuous hydraulic cylinder drives the lifting plate to lift through the piston rod, the lifting plate penetrates the rectangular hole at the bottom of the model groove and is in contact with the simulation rock-soil, and the lifting plate drives the simulation rock-soil to slide and lift in the model groove through the support steel plate.
[0010] Preferably, the screw rod is driven to rotate by the output shaft of the first motor, the screw rod drives the square nut to slide on the surface of the base through rotation, and the square nut drives the drill rod to slide towards the simulation rock-soil through the support rod.
[0011] Preferably, the drill rod is driven to rotate by the output shaft of the second motor, and the drill rod and the simulation pipe are vertically staggered on the simulation rock-soil.
[0012] Preferably, the refrigeration bin freezes the simulation rock-soil, the cutting table is used for the frozen simulation rock-soil, the laser cutting equipment linearly cuts the frozen simulation rock-soil, and the industrial camera is used for shooting and detecting the cutting section of the simulation rock-soil.
[0013] Compared with the prior art, the utility model has the advantages of
[0014] 1, the simulation test device, through the output shaft of second motor drive drill rod rotation, through the output shaft of first motor drive screw rod rotation again, the screw rod drives square nut to slide on the surface of base through rotation, square nut drives drill rod to the simulated rock soil direction through support rod moves, tunnel new tunnel can be simulated in drill rod in simulated rock soil inside simulation, after new tunnel is completed, the structure in simulated rock soil inside is difficult to carry out direct measurement, through guide rail model groove is slipped to the inside of freezing storehouse and is frozen, the frozen simulated rock soil is slipped from the inside of freezing storehouse again through model groove, the piston rod of cylinder continuous hydraulic cylinder drives lifting plate to rise at this time, lifting plate drives simulated rock soil to rise through support steel sheet, make simulated rock soil slide from model groove inside, use hoisting equipment to shift support steel sheet and simulated rock soil to the surface of cutting table, then through laser cutting equipment is cuted to the frozen simulated rock soil, make simulated rock soil cross section show in front of industrial camera, through industrial camera is photographed detection to the cross section of simulated rock soil, can direct to the internal structure of simulated rock soil detection, avoid the estimation detection to simulated rock soil inside, improved the accuracy of measurement. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the structure front view schematic diagram of the utility model;
[0016] Figure 2 It is the structure front view schematic diagram of the utility model;
[0017] Figure 3 It is the structure top view schematic diagram of the utility model;
[0018] Figure 4 It is the structure local front view sectional view schematic diagram of the utility model;
[0019] Figure 5 It is the structure of the utility model Figure 2 Enlarged structure schematic diagram of A place in the utility model.
[0020] In the drawing: 1, base;11, guide rail;12, model groove;13, support steel plate;14, simulated rock soil;15, simulated pipe;2, freezing storehouse;21, lifting gate;22, continuous hydraulic cylinder;23, lifting plate;24, cutting table;25, laser cutting equipment;26, industrial camera;3, first motor;31, screw rod;32, square nut;33, support rod;34, second motor;35, drill rod. DETAILED DESCRIPTION
[0021] Please refer to Figures 1-5 The utility model provides an embodiment:
[0022] The utility model provides an adjacent existing line construction disturbance effect simulation test device, including base 1, the surface of base 1 is fixedly connected with guide rail 11, the surface of guide rail 11 is slidably connected with model groove 12, the bottom of model groove 12 is slidably connected with support steel sheet 13, the upper surface of support steel sheet 13 is contactingly connected with simulation rock and soil 14, the inside of simulation rock and soil 14 is provided with simulation pipe 15, the surface of base 1 is fixedly installed with refrigeration bin 2, the surface of refrigeration bin 2 is provided with lifting gate 21, the surface of base 1 is fixedly connected with continuous hydraulic cylinder 22, the piston rod of continuous hydraulic cylinder 22 is fixedly connected with lifting plate 23, the surface of base 1 is fixedly connected with cutting table 24, the surface of base 1 is provided with laser cutting equipment 25, the surface of base 1 is fixedly installed with industry camera 26, the surface of base 1 is fixedly connected with first motor 3, the output shaft of first motor 3 is fixedly connected with lead screw 31, the surface of lead screw 31 is threadedly connected with square nut 32, the surface of square nut 32 is fixedly connected with support rod 33, the surface of support rod 33 is fixedly connected with second motor 34, the output shaft of second motor 34 is fixedly connected with drill rod 35, the test device carries out the test work of tunnel excavation through drill rod 35, after the test is completed, the simulation rock and soil 14 is handled by freezing, so that the internal structure of simulation rock and soil 14 is relatively stable, then the simulation rock and soil 14 is cut by laser cutting equipment 25, so that the cutting section that needs to be observed is exposed in the front of industry camera 26, the internal structure of simulation rock and soil 14 is observed by industry camera 26, forms direct observation, improves the accuracy of data measurement.
[0023] Further, the guide rail 11 extends to the inside of the refrigeration bin 2, the model groove 12 is slid to the inside of the refrigeration bin 2 through the guide rail 11, the support steel sheet 13 drives the simulation rock and soil 14 to slide to the inside of the refrigeration bin 2, when the model groove 12 and the simulation rock and soil 14 are in the inside of the refrigeration bin 2, the lifting gate 21 is lowered to close the refrigeration bin 2, at this time, the refrigeration bin 2 freezes the simulation rock and soil 14 on the model groove 12 until the structure of the simulation rock and soil 14 is stable, then the model groove 12 and the simulation rock and soil 14 are slid out of the inside of the refrigeration bin 2.
[0024] Further, the bottom of the model groove 12 is provided with a rectangular hole, the support steel sheet 13 is located directly above the rectangular hole of the model groove 12, the model groove 12 supports the simulation rock and soil 14 through the support steel sheet 13, the inner surface of the model groove 12 is provided with a partition, to avoid the simulation rock and soil 14 from freezing to the inner surface of the model groove 12, and the support steel sheet 13 and the simulation rock and soil 14 are always frozen together, the frozen simulation rock and soil 14 and the support steel sheet 13 can be directly slid out of the inside of the model groove 12.
[0025] Further, the bottom of the base 1 is provided with a circular hole, the output piston rod of the continuous hydraulic cylinder 22 penetrates the circular hole of the base 1, the continuous hydraulic cylinder 22 drives the lifting plate 23 to lift through the piston rod, the lifting plate 23 penetrates the rectangular hole at the bottom of the model groove 12 and is in contact with the simulated rock-soil 14, the lifting plate 23 drives the simulated rock-soil 14 to slide in the model groove 12 through the support steel plate 13, the simulated rock-soil 14 can slide out of the top of the model groove 12, at this time, the lifting equipment can be used to move the support steel plate 13 and the simulated rock-soil 14 to the surface of the cutting table 24, the lifting mechanism is prior art and can be used to move large objects.
[0026] Further, the lead screw 31 is driven to rotate by the output shaft of the first motor 3, the lead screw 31 drives the square nut 32 to slide on the surface of the base 1 through rotation, the square nut 32 drives the drill rod 35 to slide towards the simulated rock-soil 14 through the support rod 33, the drill rod 35 moves the simulated shield machine in the rock layer.
[0027] Further, the drill rod 35 is driven to rotate by the output shaft of the second motor 34, the drill rod 35 excavates in the simulated rock-soil 14 in the process of rotation, the drill rod 35 and the simulated pipe 15 are vertically staggered on the simulated rock-soil 14, the simulated pipe 15 simulates an existing tunnel, and the drill rod 35 simulates a new tunnel adjacent to the simulated pipe 15 on the simulated rock-soil 14, and the internal structure of the simulated rock-soil 14 is difficult to directly observe.
[0028] Further, the freezing bin 2 freezes the simulated rock-soil 14, the cutting table 24 is used for the frozen simulated rock-soil 14, the laser cutting equipment 25 linearly cuts the frozen simulated rock-soil 14, and the industrial camera 26 is used for shooting and detecting the cutting section of the simulated rock-soil 14, at this time, the internal structure of the simulated rock-soil 14 is displayed in front of the industrial camera 26, so that the industrial camera 26 can be conveniently detected, and the measurement accuracy of the internal structure of the simulated rock-soil 14 is improved.
[0029] Working principle: the output shaft of the second motor 34 drives the drill rod 35 to rotate, and then the output shaft of the first motor 3 drives the lead screw 31 to rotate, the lead screw 31 drives the square nut 32 to slide on the surface of the base 1 through rotation, and the square nut 32 drives the drill rod 35 to move to the simulated rock-soil 14 through the support rod 33, at this time the drill rod 35 can simulate tunneling in the simulated rock-soil 14, after the new tunnel is completed, the structure inside the simulated rock-soil 14 is difficult to measure directly, the model groove 12 is slid into the freezing warehouse 2 through the guide rail 11, the frozen simulated rock-soil 14 is slid out of the freezing warehouse 2 through the model groove 12, at this time the piston rod of the cylinder continuous hydraulic cylinder 22 drives the lifting plate 23 to rise, the lifting plate 23 drives the simulated rock-soil 14 to rise through the support steel plate 13, so that the simulated rock-soil 14 slides out of the model groove 12, the support steel plate 13 and the simulated rock-soil 14 are transferred to the surface of the cutting table 24 through hoisting equipment, and then the frozen simulated rock-soil 14 is cut through the laser cutting equipment 25, so that the cross section of the simulated rock-soil 14 is displayed in front of the industrial camera 26, the cross section of the simulated rock-soil 14 is detected through the industrial camera 26, the internal structure of the simulated rock-soil 14 can be directly detected, the internal estimation of the simulated rock-soil 14 is avoided, and the measurement accuracy is improved.
Claims
1. A device for simulating the effect of construction disturbance adjacent to an existing line, characterized in that: The utility model provides a rock simulation device, including base, the surface of base is fixedly connected with guide rail, the surface of guide rail is connected with model groove, the bottom of model groove is connected with support steel sheet, the upper surface of support steel sheet is connected with simulation rock and soil, the inside of simulation rock and soil is provided with simulation pipe, the surface of base is fixedly installed with refrigeration storehouse, the surface of refrigeration storehouse is provided with liftable gate, the surface of base is fixedly connected with continuous hydraulic cylinder, the piston rod of continuous hydraulic cylinder is fixedly connected with lifting plate, the surface of base is fixedly connected with cutting table, the surface of base is provided with laser cutting equipment, the surface of base is fixedly installed with industry camera, the surface of base is fixedly connected with first motor, the output shaft of first motor is fixedly connected with screw rod, the surface of screw rod is threadedly connected with square nut, the surface of square nut is fixedly connected with support rod, the surface of support rod is fixedly connected with second motor, the output shaft of second motor is fixedly connected with drill rod.
2. The device for simulating the effect of construction disturbance according to claim 1, wherein: The guide rail extends to the inside of the refrigeration storehouse, the model groove slides to the inside of the refrigeration storehouse through the guide rail, and the support steel sheet drives the simulation rock and soil to slide to the inside of the refrigeration storehouse.
3. The device for simulating the effect of construction disturbance according to claim 1, wherein: The bottom of the model groove is provided with a rectangular hole, the support steel plate is located directly above the rectangular hole of the model groove, and the model groove supports the simulation rock and soil through the support steel plate.
4. The device for simulating the effect of construction disturbance according to claim 3, wherein: The bottom of the base is provided with a circular hole, the output piston rod of the continuous hydraulic cylinder penetrates the circular hole of the base, the continuous hydraulic cylinder drives the lifting plate to lift through the piston rod, the lifting plate penetrates the rectangular hole at the bottom of the model groove and is in contact with the simulation rock and soil, and the lifting plate drives the simulation rock and soil to slide and lift in the model groove through the support steel plate.
5. The device for simulating the effect of construction disturbance according to claim 1, wherein: The screw rod is driven to rotate through the output shaft of the first motor, the screw rod drives the square nut to slide on the surface of the base through rotation, and the square nut drives the drill rod to slide towards the simulation rock and soil through the support rod.
6. The device for simulating the effect of construction disturbance according to claim 1, wherein: The drill rod is driven to rotate through the output shaft of the second motor, and the drill rod and the simulation pipe are vertically staggered on the simulation rock and soil.
7. The device for simulating the effect of construction disturbance according to claim 1, wherein: The refrigeration storehouse freezes the simulation rock and soil, the cutting table is used for the frozen simulation rock and soil, the laser cutting equipment linearly cuts the frozen simulation rock and soil, and the industry camera is used for shooting and detecting the cutting section of the simulation rock and soil.