CN212161106U - A device for simulating underground engineering excavation, coal seam mining and filling - Google Patents

Abstract

The utility model discloses a device that simulation underground works excavation, coal seam exploitation and fill relates to underground works's simulation excavation, exploitation and fill experiment technical field, the power distribution box comprises a box body, a plurality of baffles of bottom fixedly connected with in the box, first layer ground body, at least one no elasticity water bag and second floor rock soil body have been laid in proper order from the bottom up in the box, a plurality of detection sensors have been buried underground in the ground body, the one end intercommunication of no elasticity water bag has one for the water supply and drainage mechanism of no elasticity water bag water injection and drainage. This device of simulation underground works excavation, coal seam exploitation and filling utilizes box, similar geotechnique body and inelastic water bag to simulate underground works structure, uses the inelastic water bag of filling with mobile liquid to act as the soil body of secret hollow structure, can simulate underground works excavation, coal seam exploitation and filling, adopts inelastic water bag, can avoid leading to covering the soil layer uplift because of the too big water bag inflation of injection fluid pressure.

Description

A device for simulating underground engineering excavation, coal seam mining and filling

technical field

The utility model relates to the technical field of simulated excavation, mining and filling experiments of underground engineering, in particular to a device for simulating underground engineering excavation, coal seam mining and filling.

Background technique

Underground engineering is the space created by man-made excavation under the surface. The existence of underground engineering makes the production and life of surface people face great safety problems. Roads, bridges, railways and other infrastructure and buildings are built on the upper part of underground engineering, sometimes It is difficult to ensure the safety of traffic and buildings on the ground only by using various protective measures on the ground. Therefore, it is particularly important to simulate the methods of excavation, coal seam mining and filling of underground works. In addition to field tests, a large number of model tests are required. Then, comprehensive and reliable test data can be obtained to support the actual project.

The existing underground engineering simulation experiment device either only simulates the excavation and mining of underground engineering, or only simulates the filling of underground engineering, which has limitations, and it is inconvenient to observe the simulation data display panel.

Utility model content

The purpose of the utility model is to provide a device for simulating underground engineering excavation, coal seam mining and filling, so as to solve the problem that the existing underground engineering simulation experimental device either only simulates underground engineering excavation and mining, or can only simulate underground engineering filling , there are limitations, and it is inconvenient to observe the simulated data display panel.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a device for simulating underground engineering excavation, coal seam mining and filling, comprising a box body, the bottom of the box body is fixedly connected with a number of baffle plates distributed at equal intervals. A first layer of rock and soil body, at least one inelastic water bag and a second layer of rock and soil body are laid in sequence from bottom to top in the box. Several detection sensors are embedded in the rock and soil body, and one end of the inelastic water bag is connected to each other. There is a water supply and drainage mechanism for filling and draining inelastic water bags, a cover plate is movably installed on the top of the box body, an angle adjustment mechanism is arranged between the cover plate and the box body, and the angle adjustment mechanism is assembled as a cover plate. When the plate is fully opened from the box body, the angle between the cover plate and the box body can be adjusted, an information processing and display mechanism is fixedly mounted on the cover plate, and the information processing and display mechanism is electrically connected with the detection sensor.

Further, the inelastic water bag includes a soft water bag layer, and the outside of the soft water bag layer is covered with an inelastic hose layer. The pouch will not expand.

Further, the water supply and drainage mechanism includes a water pump fixedly installed on one side of the box body, the water inlet of the water pump is connected with the water source through a water inlet pipe, the water outlet of the water pump is connected with a main pipe, and also includes a water inlet with inelastic water. The drainage pipe is connected with the bag, the drainage pipe is communicated with the main pipe through the branch pipe, a valve is fixedly installed at the drain port of the drainage pipe, and a pressure pressure between the valve and the inelastic water bag is fixedly installed on the drainage pipe. The water supply and drainage mechanism is provided to fill the inelastic water bag with water and drain the water in each inelastic water bag respectively.

Further, a guide plate is respectively provided on the top of the opposite side plates of the box body, one end of the guide plate protrudes from the box body, a chute is respectively provided on the two guide plates, and two adjacent end corners of the cover plate are provided. A cylindrical slide block located in the corresponding chute is respectively arranged at the locus, so that the cover plate slides and rotates on the guide plate through the way of the sliding block and the chute.

Further, the angle adjustment mechanism includes a round rod that is fixedly connected with the end of the slider of the cover plate, and a circular ring is slidably arranged on the circular rod along its axial direction, and the circular ring is fixedly connected to the end face of the guide plate. The end of the round rod away from the guide plate is fixedly connected with a cap block, and a compression spring is fixedly connected between the cap block and the ring, and also includes a number of clamping grooves matched with the clamping teeth. It is arranged in a circumferential distribution on one end of the guide plate protruding from the box body.

Further, a groove is provided on the peripheral side of the circular rod along the axis direction, and a convex strip that matches the groove is provided on the inner peripheral side of the circular ring along the axis direction. Rotate on the rod.

Compared with the prior art, the beneficial effects of the present utility model are:

1. The device for simulating underground engineering excavation, coal seam mining and filling, uses box, similar rock and soil and inelastic water bags to simulate underground engineering structures, and uses inelastic water bags filled with flowable liquid as underground hollow structures It can simulate underground engineering excavation, coal seam mining and filling. The use of inelastic water bags can avoid the overlying soil uplift caused by the expansion of the water bags due to excessive injection liquid pressure;

2. Set up a water supply and drainage mechanism and an inelastic water bag, simulate the actual excavation process by controlling the flow rate of the liquid in the inelastic water bag through the valve, and simulate the forward process of the coal seam mining work by draining the liquid in the water bag one by one. The water pump is used to inject fillers into the water bag that drains the liquid to simulate the filling treatment of underground engineering, and the real-time data during the simulation process is detected by the detection sensor and the information processing and display mechanism.

3. An angle adjustment mechanism is provided, which can adjust the angle between the cover and the box when the cover is fully opened, so as to adjust the display panel of the processing and display mechanism on the cover to an appropriate angle, which is convenient for data observation.

4. For large-area goafs, place baffles between adjacent inelastic water bags to act as coal pillars reserved in the actual mining process, and also prevent the other side of the water bag from draining the water in one side of the water bag. Rolling causes simulation results to be too different from actual engineering.

Description of drawings

1 is a schematic diagram of the overall structure of the present utility model;

Fig. 2 is an enlarged view of the structure at place A in Fig. 1 of the utility model;

Fig. 3 is a structural cross-sectional view of the utility model;

4 is a top view of the structure when no rock and soil mass is laid on the inelastic water bag of the present invention;

Fig. 5 is the structural schematic diagram of the box body and the baffle plate of the present invention;

Fig. 6 is an enlarged view of the structure at place B in Fig. 5 of the utility model;

7 is a schematic structural diagram of the inelastic water bag and the water supply and drainage mechanism of the present invention;

8 is a sectional view of the structure of the inelastic water bag of the present invention;

FIG. 9 is a schematic structural diagram of the angle adjustment mechanism of the present invention.

In the figure: 1. box body; 2. baffle plate; 3. inelastic water bag; 301, soft water bag layer; 302, inelastic hose layer; 4. water supply and drainage mechanism; 401, water pump; 402, water inlet pipe; 403, main pipeline; 404, branch pipeline; 405, drainage pipe; 406, valve; 407, pressure gauge; 5, rock and soil mass; 6, detection sensor; 7, cover plate; 8, angle adjustment mechanism; 801, round rod ; 802, ring; 803, tooth; 804, cap block; 805, compression spring; 806, groove; 807, convex strip; 9, information processing and display mechanism; 10, guide plate; 1001, chute; 1002, card slot.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to Figures 1-9, the present utility model provides a technical solution: a device for simulating underground engineering excavation, coal seam mining and filling, comprising a box body 1, the inner bottom of the box body 1 is fixedly connected with a number of equally spaced blocks Plate 2, for a large area of goaf, a baffle 2 is placed between adjacent inelastic water bags 3 to act as coal pillars reserved in the actual mining process, and also to prevent the water in one side of the inelastic water bag 3 from being drained. The rolling of the inelastic water bag 3 on the other side causes the simulation result to be too different from the actual project. The first layer of rock and soil mass 5, at least one inelastic water bag 3 and the second layer are laid in the box 1 from bottom to top. Rock and soil body 5, inelastic water bag 3 is covered with rock and soil body 5 similar to the actual simulation object above and below, which is in line with the actual situation. The water bag 3 includes a soft water bag layer 301. The soft water bag layer 301 is a waterproof rubber material to prevent liquid leakage. The soft water bag layer 301 is covered with an inelastic hose layer 302. The inelastic hose layer 302 is The soft and inelastic material (such as polyester) can avoid the bulge of the rock and soil mass 5 above due to the expansion of the soft water bag layer 301 due to excessive injection liquid pressure. Several detection sensors 6 are embedded in the rock and soil mass 5. The detection sensors 6 and information The processing and display mechanism 9 is electrically connected, wherein the detection sensor 6 is a pressure sensor, the pressure sensor model is HC-3100, the information processing display mechanism 9 is a collector, and the collector model is DH5937 (or the detection sensor 6 is an LVDT differential transformer type displacement sensor. , the model is LVDTC20, the information processing and display mechanism 9 is an XSEW high-precision display instrument), the detection sensor 6 can detect the pressure change or settlement change of the rock and soil mass 5 during the simulation process, and one end of the inelastic water bag 3 is connected to a supply of inelastic water. Water supply and drainage mechanism 4 for water injection and drainage of bag 3.

The water supply and drainage mechanism 4 includes a water pump 401 that is fixedly installed on one side of the box body 1. The water inlet of the water pump 401 is connected to the water source through a water inlet pipe 402, and the water outlet of the water pump 401 is connected to a main pipe 403, and also includes an inelastic water bag 3. The connected drainage pipe 405, the drainage pipe 405 is communicated with the main pipe 403 through the branch pipe 404, a valve 406 is fixedly installed at the drainage port of the drainage pipe 405, and a valve 406 is fixedly installed on the drainage pipe 405 between the valve 406 and the inelastic water bag 3 The pressure gauge 407 is provided with a water supply and drainage mechanism 4, which can fill or drain water for the inelastic water bag 3. The reading of the pressure gauge 407 can be observed while filling the water, and the liquid flow rate in the inelastic water bag 3 is controlled by the valve 406 to simulate the actual opening. In the excavation process, the liquid in the inelastic water bags 3 is drained one by one to simulate the process of advancing the coal seam mining face, and the water pump 401 is used to inject fillers into the inelastic water bags 3 that have drained the liquid to simulate the underground engineering filling treatment.

A cover plate 7 is movably installed on the top of the box body 1, an information processing and display mechanism 9 is fixedly installed on the cover plate 7, and the information processing and display mechanism 9 is electrically connected with the detection sensor 6. The cover plate 7 can cover the upper opening of the box body 1, and the box A guide plate 10 is respectively provided on the top of the opposite side plates of the body 1, one end of the guide plate 10 protrudes from the box body 1, a chute 1001 is respectively provided on the two guide plates 10, and two adjacent end corners of the cover plate 7 are respectively provided with a Corresponding to the cylindrical slide block in the chute 1001 , the cover plate 7 is slid and rotated on the guide plate 10 by the way that the slide block and the chute 1001 cooperate with each other.

An angle adjustment mechanism 8 is arranged between the cover plate 7 and the box body 1. The angle adjustment mechanism 8 is assembled to be able to adjust the angle between the cover plate 7 and the box body 1 when the cover plate 7 is completely opened from the box body 1. The angle The adjusting mechanism 8 includes a round rod 801 that is fixedly connected with the end of the slider of the cover plate 7. The round rod 801 is slidably provided with a circular ring 802 along its axial direction. The inner peripheral side of the ring 802 is provided with a protruding strip 807 that matches the groove 806 along the axis direction. The cap block 804, a compression spring 805 is fixedly connected between the cap block 804 and the ring 802, and also includes a plurality of clamping grooves 1002 matched with the clamping teeth 803. The clamping grooves 1002 are arranged in a circumferential distribution on the guide plate 10 and protrude from the box body 1 An angle adjustment mechanism 8 is provided at one end of the cover, which can adjust the angle between the cover 7 and the box 1 when the cover 7 is fully opened, so as to adjust the display panel of the information processing and display mechanism 9 on the cover 7 to an appropriate angle , which is easy to observe the data.

Working principle: First, slide open the cover 7 completely, and slide the ring 802 against the elastic force of the compression spring 805, so that the locking teeth 803 are separated from the locking groove 1002. At this time, the cover 7 is rotated to make the display panel at an appropriate angle, and the ring 802 is loosened. The clamping teeth 803 are clamped into the clamping groove 1002 corresponding to this angle; then the actual working conditions are measured, and the geological conditions to be excavated or backfilled are proportionally scaled by using the similar principle to obtain the size of the corresponding similar rock and soil mass 5. The material of the similar rock and soil body 5 is prepared in principle; then the simulated first layer of similar rock and soil body 5 is laid in the filling space of the box 1, and it is laid to the design height of the goaf. 3. It is placed and laid on the first layer of rock and soil body 5. The size and quantity of the inelastic water bag 3 can be determined according to the size of the underground project. The diameter of the inelastic water bag 3 is equal to the height of the underground project to be simulated. , fill the inelastic water bag 3 with water through the water supply and drainage mechanism 4 to act as the soil body of the underground hollow structure, and then lay a second layer of rock and soil 5 above the inelastic water bag 3 and bury several detection sensors 6. The laying process After testing the relevant physical indexes of the soil samples of each layer of rock and soil body 5 in the middle, the fabrication and laying of the upper layer of rock and soil body 5 can be carried out; then the actual excavation and mining process can be simulated by opening the valve 406 of the water supply and drainage mechanism 4 to control the liquid flow. When the water in the inelastic water bags 3 is released one by one, the process of advancing the working face during actual coal seam mining can be simulated. Filling liquid is injected into bag 3 to simulate the filling and treatment of underground works such as abandoned tunnels or goafs.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a device that simulation underground works excavation, coal seam exploitation and fill which characterized in that:

the rock-soil mass storage box comprises a box body (1), wherein a plurality of baffle plates (2) which are distributed at equal intervals are fixedly connected to the bottom in the box body (1), and a first layer of rock-soil mass (5), at least one inelastic water bag (3) and a second layer of rock-soil mass (5) are sequentially paved in the box body (1) from bottom to top;

a plurality of detection sensors (6) are embedded in the rock-soil body (5);

one end of the inelastic water bag (3) is communicated with a water supply and drainage mechanism (4) for filling water into and draining water from the inelastic water bag (3);

a cover plate (7) is movably mounted at the top of the box body (1), an angle adjusting mechanism (8) is arranged between the cover plate (7) and the box body (1), and the angle adjusting mechanism (8) is assembled to be capable of adjusting the angle between the cover plate (7) and the box body (1) when the cover plate (7) is completely opened from the box body (1);

an information processing display mechanism (9) is fixedly mounted on the cover plate (7), and the information processing display mechanism (9) is electrically connected with the detection sensor (6).

2. The device for simulating underground engineering excavation, coal seam mining and filling of claim 1, wherein: inelastic water bag (3) includes soft water bag layer (301), soft water bag layer (301) outside cladding has one deck inelastic hose layer (302).

3. The device for simulating underground engineering excavation, coal seam mining and filling of claim 1, wherein: the water supply and drainage mechanism (4) comprises a water pump (401) fixedly arranged on one side of the box body (1), a water inlet of the water pump (401) is communicated with a water source through a water inlet pipe (402), and a water outlet of the water pump (401) is communicated with a main pipeline (403);

the drainage device is characterized by further comprising a drainage tube (405) communicated with the inelastic water bag (3), the drainage tube (405) is communicated with the main pipeline (403) through a branch pipeline (404), a valve (406) is fixedly installed at a drainage outlet of the drainage tube (405), and a pressure gauge (407) located between the valve (406) and the inelastic water bag (3) is fixedly installed on the drainage tube (405).

4. The device for simulating underground engineering excavation, coal seam mining and filling of claim 1, wherein: the box is characterized in that guide plates (10) are respectively arranged at the tops of two opposite side plates of the box body (1), one end of each guide plate (10) protrudes out of the box body (1), two sliding grooves (1001) are respectively formed in the guide plates (10), cylindrical sliding blocks located in the corresponding sliding grooves (1001) are respectively arranged at two adjacent end corners of the cover plate (7), and the cover plate (7) slides and rotates on the guide plates (10) in a sliding mode matched with the sliding grooves (1001).

5. The device for simulating underground engineering excavation, coal seam mining and filling of claim 1, wherein: the angle adjusting mechanism (8) comprises a round rod (801) fixedly connected with the end part of a sliding block of the cover plate (7), a round ring (802) is arranged on the round rod (801) in a sliding mode along the axial direction of the round rod, a latch (803) is fixedly connected to the end face, close to the guide plate (10), of the round ring (802), a cap block (804) is fixedly connected to the end part, far away from the guide plate (10), of the round rod (801), and a pressure spring (805) is fixedly connected between the cap block (804) and the round ring (802);

the box body is characterized by further comprising a plurality of clamping grooves (1002) matched with the clamping teeth (803), wherein the clamping grooves (1002) are circumferentially distributed and are formed in one end, protruding out of the box body (1), of the guide plate (10).

6. The device for simulating underground engineering excavation, coal seam mining and filling of claim 5, wherein: a groove (806) is formed in the peripheral side face of the round rod (801) along the axis direction, and a protruding strip (807) matched with the groove (806) is arranged on the peripheral side face of the ring (802) along the axis direction.

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