CN205317496U - Simulation tunnel passes through active fault's displacement synchro control device - Google Patents

Simulation tunnel passes through active fault's displacement synchro control device Download PDF

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Publication number
CN205317496U
CN205317496U CN201620008952.2U CN201620008952U CN205317496U CN 205317496 U CN205317496 U CN 205317496U CN 201620008952 U CN201620008952 U CN 201620008952U CN 205317496 U CN205317496 U CN 205317496U
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China
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board
half chests
tunnel
base
carrier strip
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Withdrawn - After Issue
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CN201620008952.2U
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Chinese (zh)
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张志强
张彪
孙飞
郭远明
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Southwest Jiaotong University
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Southwest Jiaotong University
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Abstract

The utility model provides a simulation tunnel passes through active fault's displacement synchro control device which the constitution is: non -operculate model sample case comprises with fixed right half chests the left half chests of activity, pass through load plate and horizontal loading device connects on the reaction frame with left side half chests, and the vertical loading device through the below connects on the horizontal migration of base is vice, right side half chests is direct be fixed in the base through high strength bolt on, the hypotenuse of right half chests is parallel with the hypotenuse of left half chests, and through removing pair connection. The model test incasement is provided with the version space runing rest that is used for fixed tunnel model. The device can simulate different forms (walking cunning, incline, slant), different spatial position (tunnel with the fault angle of intersection, inclination relation) loaded active fault of displacement synchro control and glue the slide and move down the tunnel and destroy machine -processed experiment, provides reliable tentation data for the design and construction in tunnel to guarantee the operation safety in tunnel.

Description

A kind of simulation tunnel passes through the displacement synchronous control device of active fault
Technical field
This utility model relates to a kind of simulation tunnel and passes through the displacement synchronous control device of active fault.
Background technology
Active fault is made up of fault plane and fault wall. Fault plane is the plane of fracture of sillar generation relative displacement. Fault wall refers to the sillar of fault plane both sides, is positioned at the dish that is called on fault plane, is called lower wall under fault plane, as fault plane is upright, then describes relative to the orientation (East, West, South, North) of fault strike by sillar. 20th century, substantial amounts of rock (soil) mechanics friction sliding experiment result of study was pointed out, rock (soil body) Frictional Slipping has two class primitive forms: (stick-slip) is slided in Stable sliding (creep) and burst. Stick-slip is a kind of unstable slip, and it is the vibration displacement response that applied load is produced. The active fault stick-slip changing of the relative positions is the provincialism geological disaster of a kind of Structural Characteristics of Cenozioc Faulted Structure, it it is the principal element causing Cross-fault leveling tunnel structure heavy damage, have a strong impact on the stability of tunnel lining structure, be embodied in the sudden large deformation displacement changing of the relative positions of the upper and lower dish of tomography.
Acceleration along with urbanization process, and a large amount of of Tunnel Engineering that development of the West Regions causes build, will inevitably run into leap active fault problem, during such as Xinjiang Urumqi construction of subway, according to engineering construction, it is faced with the technical barrier passing through a plurality of active fault. Tunnel lining structure pins down lower to generation additional stress and additional deformation in tomography soil at both sides relative displacement, excessive alternate displacement makes lining cutting hold concurrently the compound mechanics character by tension and compression, shearing, torsion and bending, may result in Lining cracks and yield failure, affect subway sectional tunnel normal operation.
Chinese patent application 201010156366.X discloses one " ground fissure earth tunnel physical model test device and model test method ". This simulation ground fissure earth tunnel physical model test device, magnitude of misalignment according to the simulation ground fissure arranged, by controlling the work of device control settlement device, drive piston rod moves down, the upper dish soil body settles downwards under the effect of deadweight and air pressure capsule, and produce to misplace downwards between the upper dish soil body and ground fissure movement;For the angles different between simulation tunnel axis from the transversal line of the ground fissure facade impact on tunnel stress and deformation state, model equipment is by arranging the tunnel portal of the different directions of four levels, different angles (angle of cut) between simulation tunnel axis from ground fissure facade transversal line, angle respectively 30 °, 45 °, 60 °, 90 °. It there is the problem that 1, can only simulation tunnel and crack facade be 30 °, 45 °, 60 °, 90 ° of four angles of cut time, the crack vandalism to tunnel, it is impossible to when simulation tunnel and crack facade are arbitrary intersection angle, the crack vandalism to tunnel; 2 but owing to its ground fissure facade is vertical, four tunnel models are also level all the time, it can only simulate the destruction to tunnel of the vertical crack of soils, and the inclination angle of simulation fracture face and horizontal plane can not be not equal to the dipping fracture of the 90 ° destruction to tunnel. 3, can only the crack of the very low Stable sliding of the simulation game speed failure mechanism to tunnel, and the stick-slip changing of the relative positions of the significantly high instability slip active fault of the changing of the relative positions speed failure mechanism to tunnel can not be simulated. 4, it is controlled according to default displacement total amount, it is impossible to the vandalism to tunnel of the fault movement under the different velocity of displacement of simulation.
Utility model content
Goal of the invention of the present utility model is to provide a kind of simulation tunnel and passes through the displacement synchronous control assay device of active fault, this device is capable of the locus of tunnel structure and active fault arbitrary angle, arbitrary intersection angle, active fault level, vertical displacement synthesis Synchronization Control load, thus vandalism to tunnel during simulation game fault movement, design and construction for tunnel provides reliable test data, to ensure the operation security in tunnel.
This utility model realizes its purpose and be employed technical scheme comprise that, a kind of simulation tunnel passes through the displacement synchronous control assay device of active fault, it is characterised in that:
The model sample case of uncovered is made up of movable left half chests and fixing right half chests;
Described left half chests is made up of left ahead board, left back board, left plate, left bottom plate, and the bottom surface of left bottom plate and the upper end of vertical loading device are hinged by hinged-support, and the lower end of vertical loading device is connected on the horizontal shifting platform that chassis left side can move forward and backward; Carrier strip is added before being close to before left ahead board, before add the rear end pushing against front horizontal loading apparatus before carrier strip, the front end of front horizontal loading apparatus is connected with the front reaction frame on base, before add carrier strip and extend downwardly from and base contacts, and the front portion of the horizontal shifting platform of base and the rear contact front adding carrier strip; Carrier strip is added after being close to after left back board, after add the front end pushing against rear horizontal loading apparatus after carrier strip, the rear end of rear horizontal loading apparatus is connected with the rear reaction frame on base, after add carrier strip and extend downwardly from and base contacts, and the rear portion of the horizontal shifting platform of base with after add and contact before carrier strip;
Described right half chests is made up of right front board, right back board, right plate, right base plate, and right base plate is fixed on base either directly through high-strength bolt;
The right of left ahead board of described left half chests, the right of left back board, the left side of right front board of right half chests, right back board the left side be the hypotenuse of inclination; The left side of right front board is connected by the front moving sets that can move along the right of left ahead board and can move forward and backward with the right of left ahead board, and the left side of right back board is connected by the rear moving sets that can move along the right of left back board and can move forward and backward with the right of left back board;
Described left back board and the inwall of right front board arrange model support, the concrete composition of model support is: one end of connecting rod is articulated with on the inwall of left back board or right front board by the connecting rod ball pivot of locking nut, and it is hinged with the inner of the inner of the upper holding frame of circular arc and the lower holding frame of circular arc that the upside of the connecting rod other end, downside all clamp ball pivot;The outer end of upper holding frame and the outer end of lower holding frame are connected by screw rod.
Further, vertical loading device of the present utility model is furnished with load sensor and displacement transducer. Described front horizontal loading apparatus and rear horizontal loading apparatus are also provided with load sensor and displacement transducer.
Using method of the present utility model and work process be:
A. the two ends of tunnel model are respectively placed between the upper holding frame of left back board and lower holding frame, between upper holding frame and the lower holding frame of right front board; Regulate upper angle of declination and the left and right angle of cut of the connecting rod of left back board again, and tighten the locking nut on ball pivot; Simultaneously, regulate upper angle of declination and the left and right angle of cut of the connecting rod of right front board, and tighten the locking nut on ball pivot, then the outer end of upper holding frame and the outer end of lower holding frame are fixed by screw rod, it is fixed in model sample case by tunnel model by the upper angle of declination set, the front and back angle of cut; Then the landfill trial-production soil body in model sample case;
B. before starting, horizontal loading apparatus adds carrier strip half chests imposed load to the left by horizontal loading apparatus after front adding carrier strip or starting after passing through, and makes left half chests and vertical loading device below move horizontally forward or backward with horizontal shifting platform;
Meanwhile, by vertical loading device to left half chests upwards imposed load, left half chests is made to be moved up along the Left-Tilt on the left side of right front board, right back board by front moving sets, rear moving sets;
C. while loading, the level of left half chests, vertical displacement are monitored in real time by displacement transducer so that it is reach the level, the vertical displacement that set by the velocity of displacement set; The level that is subject to by the left half chests of the real-time monitoring of load sensor, vertical load.
Compared with prior art, the beneficial effects of the utility model are:
One, horizontal loading apparatus by front add carrier strip or after add carrier strip half chests imposed load to the left, make left half chests and vertical loading device below move horizontally the anterior-posterior horizontal displacement of setting forward or backward with horizontal shifting platform, simulate the tomography generation anterior-posterior horizontal changing of the relative positions; Vertical loading device is half chests imposed load to the left, makes left half chests be moved up the oblique displacement set along the Left-Tilt on the left side of right front board, right back board by forward and backward moving sets, namely simulates tomography and the oblique changing of the relative positions occurs. The anterior-posterior horizontal changing of the relative positions and the oblique changing of the relative positions can independently, synchronously carry out, such that it is able to simulate the active fault changing of the relative positions of various multi-form, different angles, and then test, analyze the active fault changing of the relative positions of various multi-form, different angles to the failure mechanism in tunnel and influence factor, there is provided more comprehensively for the design and construction in tunnel, more reliable test data, to ensure the operation security in tunnel.
Two, the angle of cut and upper angle of declination before and after it can be arbitrarily adjusted by the connecting rod that the ball pivot of locking nut is hinged with model casing inwall, make the upper-lower position at the two ends of tunnel model, front and back position can arbitrarily regulate setting, thus simulating the arbitrary angle of tunnel model and active fault, the space angle position relationship of arbitrary intersection angle, realize active fault with tunnel model at arbitrary angle, model test in arbitrary intersection angle situation, and then analysis of experiments goes out tunnel with tomography in different angle, mechanism that tunnel structure is destroyed by the fault movement in angle of cut situation and influence factor, design and construction for tunnel provides more comprehensively, more reliable test data, to ensure the operation security in tunnel. design and construction to tunnel have directive significance widely.
Above-mentioned vertical loading device is furnished with load sensor and displacement transducer.Above-mentioned horizontal loading apparatus is also equipped with load sensor and displacement transducer.
The setting of displacement transducer, makes the control of displacement more accurately, reliably. The loading that the left half chests of the arranging of the load sensor activity of measuring in real time is subject to, analyzes more easily and show that the active fault changing of the relative positions is to the failure mechanism in tunnel and influence factor.
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 be this utility model embodiment face structural representation.
Fig. 2 is the backsight structural representation of this utility model embodiment.
Fig. 3 is the left view structural representation of this utility model embodiment.
Fig. 4 is the A-A sectional view of Fig. 3.
Detailed description of the invention
Fig. 1-4 illustrates, a kind of simulation tunnel passes through the displacement synchronous control device of active fault, and its composition is:
The model sample case of uncovered is made up of movable left half chests 100 and fixing right half chests 200;
Described left half chests is made up of left ahead board 101, left back board 102, left plate 103, left bottom plate 104, the bottom surface of left bottom plate 104 and the upper end of vertical loading device 301 are hinged by hinged-support 105, and the lower end of vertical loading device 301 is connected on the horizontal shifting platform 401 that can move forward and backward on the left of base 400; Carrier strip 106 is added before being close to before left ahead board 101, before add the rear end pushing against front horizontal loading apparatus 302 before carrier strip 106, the front end of front horizontal loading apparatus 302 is connected with the front reaction frame 402 on base 400, before add carrier strip 106 and extend downwardly from contacting with base 400, and the front portion of the horizontal shifting platform 401 of base 400 and the rear contact front adding carrier strip 106; Left back board 102 adds carrier strip 107 after being close to below, after add the front end pushing against rear horizontal loading apparatus 303 after carrier strip 107, the rear end of rear horizontal loading apparatus 303 is connected with the rear reaction frame 403 on base 400, after add carrier strip 107 and extend downwardly from contacting with base 400, and the rear portion of the horizontal shifting platform 401 of base 400 with after add and contact before carrier strip 107;
Described right half chests 200 is made up of right front board 201, right back board 202, right plate 203, right base plate 204, and right base plate 204 is fixed on base 400 either directly through high-strength bolt;
The right of left ahead board 101 of described left half chests 100, the right of left back board 102, the left side of right front board 201 of right half chests 200, right back board 202 the left side be the hypotenuse of inclination; The left side of right front board 201 is connected by the front moving sets 108 that can move along the right of left ahead board and can move forward and backward with the right of left ahead board 101, and the left side of right back board 202 is connected by the rear moving sets 109 that can move along the right of left back board and can move forward and backward with the right of left back board 102;
Described left back board 102 and the inwall of right front board 201 arrange model support, model support concrete is constituted: one end of connecting rod 501 is articulated with on the inwall of left back board 102 or right front board 201 by the connecting rod ball pivot 503 of locking nut 502, and the upside of connecting rod 501 other end, downside are hinged with the inner of the inner of the upper holding frame 504 of circular arc and the lower holding frame 505 of circular arc each through clamping ball pivot; The outer end of upper holding frame 504 and the outer end of lower holding frame 505 are connected by screw rod 506.
The vertical loading device 301 of this example is furnished with load sensor 304 and displacement transducer 305. Described front horizontal loading apparatus 302 and rear horizontal loading apparatus 303 are also provided with load sensor 304 and displacement transducer 305.
It is as follows that the simulation tunnel using this example passes through the method that the displacement of active fault carries out Synchronization Control by the displacement synchronous control device of active fault:
A. the two ends of tunnel model are respectively placed between the upper holding frame 504 of left back board 102 and lower holding frame 505, between upper holding frame 504 and the lower holding frame 505 of right front board 201; Regulate upper angle of declination and the left and right angle of cut of the connecting rod 501 of left back board 102 again, and tighten the locking nut 502 on ball pivot 503; Simultaneously, regulate upper angle of declination and the left and right angle of cut of the connecting rod 501 of right front board 201, and tighten the locking nut 502 on ball pivot 503, again the outer end of the outer end of upper holding frame 504 and lower holding frame 505 is fixed by screw rod, be fixed in model sample case by tunnel model by the upper angle of declination set, the front and back angle of cut; Then the landfill trial-production soil body in model sample case;
B. before starting, horizontal loading apparatus 302 adds carrier strip 107 half chests 100 imposed load to the left by horizontal loading apparatus 303 after front adding carrier strip 106 or starting after passing through, and makes left half chests 100 and vertical loading device below 301 move horizontally forward or backward with horizontal shifting platform 401;
Meanwhile, by vertical loading device 301 to left half chests 100 upwards imposed load, left half chests 100 is made to be moved up along the Left-Tilt on the left side of right front board 201, right back board 202 by front moving sets 108, rear moving sets 109;
C. while loading, the level of left half chests 100, vertical displacement are monitored in real time by displacement transducer 304 so that it is reach the level, the vertical displacement that set by the velocity of displacement set; The level that is subject to by the left half chests 100 of the real-time monitoring of load sensor 303, vertical load.

Claims (2)

1. a simulation tunnel passes through the displacement synchronous control device of active fault, it is characterised in that:
The model sample case of uncovered is made up of movable left half chests (100) and fixing right half chests (200);
Described left half chests is made up of left ahead board (101), left back board (102), left plate (103), left bottom plate (104), the bottom surface of left bottom plate (104) and the upper end of vertical loading device (301) are hinged by hinged-support (105), and the lower end of vertical loading device (301) is connected on the horizontal shifting platform (401) that base (400) left side can move forward and backward; Carrier strip (106) is added before being close to before left ahead board (101), before add the rear end pushing against front horizontal loading apparatus (302) before carrier strip (106), the front end of front horizontal loading apparatus (302) is connected with the front reaction frame (402) on base (400), before add carrier strip (106) and extend downwardly from contacting with base (400), and the front portion of the horizontal shifting platform (401) of base (400) and the rear contact front adding carrier strip (106); Left back board (102) adds carrier strip (107) after being close to below, after add the front end pushing against rear horizontal loading apparatus (303) after carrier strip (107), the rear end of rear horizontal loading apparatus (303) is connected with the rear reaction frame (403) on base (400), after add carrier strip (107) and extend downwardly from contacting with base (400), and the rear portion of the horizontal shifting platform (401) of base (400) with after add and contact before carrier strip (107);
Described right half chests (200) is made up of right front board (201), right back board (202), right plate (203), right base plate (204), and right base plate (204) is fixed on base (400) either directly through high-strength bolt;
The right of left ahead board (101) of described left half chests (100), the right of left back board (102), the left side of right front board (201) of right half chests (200), right back board (202) the left side be the hypotenuse of inclination;The left side of right front board (201) is connected by the front moving sets (108) that can move along the right of left ahead board and can move forward and backward with the right of left ahead board (101), and the left side of right back board (202) is connected by the rear moving sets (109) that can move along the right of left back board and can move forward and backward with the right of left back board (102);
Described left back board (102) and the inwall of right front board (201) arrange model support, the concrete composition of model support is: one end of connecting rod (501) is articulated with on the inwall of left back board (102) or right front board (201) by the connecting rod ball pivot (503) of locking nut (502), and it is hinged with the inner of the inner of the upper holding frame (504) of circular arc and the lower holding frame (505) of circular arc that the upside of connecting rod (501) other end, downside all clamp ball pivot; The outer end of upper holding frame (504) and the outer end of lower holding frame (505) are connected by screw rod (506).
2. simulation tunnel according to claim 1 passes through the displacement synchronous control device of active fault, it is characterized in that: described vertical loading device (301) is furnished with load sensor (304) and displacement transducer (305), and described front horizontal loading apparatus (302) and rear horizontal loading apparatus (303) are also provided with load sensor (304) and displacement transducer (305).
CN201620008952.2U 2016-01-05 2016-01-05 Simulation tunnel passes through active fault's displacement synchro control device Withdrawn - After Issue CN205317496U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105675319A (en) * 2016-01-05 2016-06-15 西南交通大学 Displacement synchronous control device and test method of simulation of tunnel traversing active faults
CN106644336A (en) * 2016-11-02 2017-05-10 西安建筑科技大学 Ground fracture-crossing experimental system and method for frame structure
CN112435527A (en) * 2020-12-02 2021-03-02 哈尔滨工业大学(威海) Matching type box structure for simulating fault motion
CN114061875A (en) * 2021-09-29 2022-02-18 华北水利水电大学 Experimental device for simulating dynamic response of goaf under vibration load action of tunnel vehicle
CN114137184A (en) * 2021-11-24 2022-03-04 长安大学 Walking and inclining mode simulation test device with variable active fault inclination angle and working method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105675319A (en) * 2016-01-05 2016-06-15 西南交通大学 Displacement synchronous control device and test method of simulation of tunnel traversing active faults
CN105675319B (en) * 2016-01-05 2018-01-23 西南交通大学 Simulation tunnel passes through the displacement synchronous control device and test method of active fault
CN106644336A (en) * 2016-11-02 2017-05-10 西安建筑科技大学 Ground fracture-crossing experimental system and method for frame structure
CN106644336B (en) * 2016-11-02 2019-02-22 西安建筑科技大学 A kind of frame structure crosses over ground fissure experimental system and method
CN112435527A (en) * 2020-12-02 2021-03-02 哈尔滨工业大学(威海) Matching type box structure for simulating fault motion
CN112435527B (en) * 2020-12-02 2022-11-01 哈尔滨工业大学(威海) Matching type box structure for simulating fault motion
CN114061875A (en) * 2021-09-29 2022-02-18 华北水利水电大学 Experimental device for simulating dynamic response of goaf under vibration load action of tunnel vehicle
CN114061875B (en) * 2021-09-29 2023-09-01 华北水利水电大学 Goaf dynamic response experimental device under action of simulated tunnel vehicle vibration load
CN114137184A (en) * 2021-11-24 2022-03-04 长安大学 Walking and inclining mode simulation test device with variable active fault inclination angle and working method

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