Anti-landslide device for open pit coal mine slope

Abstract

The invention relates to the technical field of opencast coal mines, and particularly discloses an anti-landslide device for an opencast coal mine slope. The protection net assembly is fixed through the anchoring mechanism, the anchoring mechanism is fixed to the slope body in a grouting mode, and the probability of landslide of the slope body can be reduced; a tension sensor is arranged on the protective net assembly, when the slope body deforms, a soil body of the slope body can act on the protective net assembly, so that a numerical value monitored by the tension sensor changes greatly, and the controller reminds a worker to check and judge the reason of a target area according to numerical value fluctuation monitored by the tension sensor; when a numerical value monitored by the tension sensor exceeds a set threshold value, the controller directly controls the alarm to send out an alarm signal, so that a warning effect is achieved; in addition, through the arrangement of a water guide assembly, rainwater falling on the slope surface can be absorbed and guided into a drainage ditch in the bottom of the slope body through the water guide assembly, and the adverse effect of the rainwater on the slope body is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of open coal mine, and particularly relates to a slope anti-landslide device for open coal mine. BACKGROUND

[0002] The coal resources are mined in the open coal mine area, and a large pit is dug on the ground surface, so that a slope is formed from the ground surface to the bottom of the pit, and the slope may slide under the influence of external factors, which is harmful to the personnel working in the mine area. After it rains in the coal mine area, water seeps into the surface of the slope, and the soil layer is soft and has low shear strength, so the slope is prone to slide under the action of gravity.

[0003] At present, the slope anti-landslide device is mostly used to reinforce the top of the slope and set up a dedicated post for safety observation, but when the personnel observe the occurrence of landslide, the information delay occurs in the transmission, and the harm caused by the landslide is increased, and the risk coefficient of the personnel at the bottom is increased.

[0004] Therefore, it is urgent to provide a slope anti-landslide device for open coal mine, which can dredge rainwater, reduce the occurrence probability of landslide, and timely alarm when the landslide occurs, so as to solve the problems in the prior art. SUMMARY

[0005] The present application relates to the technical field of open coal mine, and particularly relates to a slope anti-landslide device for open coal mine.

[0006] To achieve the above-mentioned purpose, the present application provides a slope anti-landslide device for open coal mine, comprising:

[0007] A protective net assembly is laid on the slope body of the slope, the top end of the protective net assembly is fixedly arranged at the top end of the slope body, and the bottom end of the protective net assembly is fixedly arranged at the bottom end of the slope body; a plurality of tension sensors are arranged on the protective net assembly;

[0008] An anchoring mechanism is inserted into the slope body, the protective net assembly is fixedly matched with the anchoring mechanism, and the anchoring mechanism is used for connecting a grouting device;

[0009] A water guide assembly is arranged along the slope surface of the slope body, and the water guide assembly is fixedly installed on the protective net assembly, and the water guide assembly is used for absorbing and guiding the rainwater falling on the slope surface;

[0010] A drainage ditch is arranged at the bottom end of the slope body, and the drainage ditch is used for converging the rainwater guided by the water guide assembly; a waterproof structure is arranged on the wall surface of the drainage ditch;

[0011] A controller, the tension sensor is electrically connected with the controller; the controller is electrically connected with an alarm, the alarm is installed on the anchoring mechanism at the bottom of the slope body.

[0012] Preferably, the anchoring mechanism comprises a hollow anchor rod, the hollow anchor rod is inserted on the slope body; the top of the hollow anchor rod is fixedly connected with a cover plate, the bottom of the cover plate is fixedly connected with a connecting piece, the protective net assembly is fixedly matched with the cover plate through the connecting piece; the top end of the hollow anchor rod is provided with a threaded hole, the threaded hole is used for connecting a grouting equipment when grouting, and the threaded hole is threadedly connected with a plug after the grouting is completed.

[0013] Preferably, the connecting piece comprises a connecting pipe fixedly connected on the cover plate, the bottom end of the connecting pipe is provided with an opening, and the side of the connecting pipe away from the hollow anchor rod is threadedly connected with a fastening bolt; the protective net assembly is clamped in the connecting pipe through the opening and is fixed through the fastening bolt.

[0014] Preferably, the protective net assembly comprises a fixed beam, the bottom end and the top end of the slope body are fixedly provided with the fixed beam, and the protective net is fixedly connected between the two fixed beams; the protective net is woven by vertical warp and horizontal weft, and the connecting pipe is sleeved on the vertical warp of the protective net.

[0015] Preferably, the tension sensor is arranged on the vertical warp of the protective net, and the tension sensor is fixedly connected in the connecting pipe through the fastening bolt; both ends of the tension sensor are provided with a threaded interface, a wiring terminal is fixedly connected on the vertical warp of the protective net, a threaded rod is rotatably connected on the wiring terminal, and the threaded rod is threadedly connected in the threaded interface.

[0016] Preferably, the water guide assembly is a sponge strip.

[0017] Preferably, the water guide assembly further comprises a waterproof film, the waterproof film is a U-shaped structure, and the waterproof film is fixedly covered at the bottom of the sponge strip.

[0018] Preferably, the distance between the two adjacent hollow anchor rods is 5m-8m.

[0019] Preferably, a plurality of capillary grooves are arranged on the outer wall of the hollow anchor rod, and the capillary grooves are arranged along the axis direction of the hollow anchor rod.

[0020] Preferably, the vertical warp and the horizontal weft of the protective net are both steel wire ropes, and the outer side of the steel wire rope is covered with a nylon layer.

[0021] Compared with the prior art, the present application has the following advantages and technical effects:

[0022] The open-pit coal mine slope landslide prevention device provided by the present application can reduce the probability of slope landslide by fixing the protection net assembly through the anchoring mechanism fixed on the slope body by grouting; moreover, the soil of the slope body acts on the protection net assembly when the slope body deforms, so that the value monitored by the tension sensor on the protection net assembly changes greatly, the controller reminds the staff to check the target area and determine the cause according to the value fluctuation monitored by the tension sensor, and the controller directly controls the alarm to send an alarm signal when the value monitored by the tension sensor exceeds the set threshold, thereby playing a warning role; in addition, the rainwater falling on the slope surface can be absorbed and guided into the drainage ditch at the bottom of the slope body through the water guide assembly, thereby reducing the adverse effects of rainwater on the slope body. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0024] Fig. 1 It is a structural schematic view of the open-pit coal mine slope landslide prevention device of the present application.

[0025] Fig. 2 It is a structural schematic view of the hollow anchor rod in the present application.

[0026] Fig. 3 It is a connection schematic view of the wiring terminal and the vertical warp in the present application.

[0027] Fig. 4 It is a structural schematic view of the sponge strip in the present application.

[0028] In the figure: 1, slope body; 2, tension sensor; 3, drainage ditch; 4, hollow anchor rod; 5, cover plate; 6, plug; 7, connecting pipe; 8, fastening bolt; 9, fixed beam; 10, vertical warp; 11, horizontal weft; 12, threaded interface; 13, wiring terminal; 14, threaded rod; 15, sponge strip; 16, waterproof film; 17, capillary groove. DETAILED DESCRIPTION

[0029] The prior art exists a kind of side slope anti-landslide device, including connecting plate, the upper end of connecting plate is equipped with water storage tank, the upper end of water storage tank is equipped with water inlet pipe, the upper end of water inlet pipe is equipped with sponge water tank, the lower end of the side of water storage tank is equipped with water outlet pipe, the other end of water outlet pipe is equipped with organic soil bag, the other side of connecting plate is equipped with guardrail, guardrail and connecting plate are rotatably connected by filter screen angle adjusting mechanism, the lower end of guardrail is equipped with bottom plate, bottom plate and ground are fixedly connected by anti-landslide device fixing mechanism, the side of guardrail is equipped with coarse filter screen, the upper end of guardrail is equipped with handrail, the side of handrail is equipped with fine filter screen.The anti-landslide device fixing mechanism includes inner screw, steering handle, fixed nail and fixed assembly one, bottom plate and ground are fixedly connected by fixed nail, the inner thread of fixed nail is connected with inner screw, the upper end of inner screw is equipped with steering handle, the lower end of fixed nail is internally equipped with fixed assembly one.Fixed assembly one includes through slot and clamping nail, the lower end of fixed nail is provided with through slot, the inner side of through slot is slidably connected with clamping nail.Fixed assembly one further includes sliding block and sliding slot, the side of clamping nail is equipped with sliding block, the inner side of fixed nail is provided with sliding slot corresponding to sliding block.Fixed assembly one further includes sliding rod and spring one, the inner side of sliding block is penetrated by sliding rod, the surface of sliding rod is equipped with spring one on the side of sliding block.The lower end of inner screw and the inner side of clamping nail are both provided with arc structure.The filter screen angle adjusting mechanism includes fixed assembly two, fixed hole, rotating shaft and rotating disc, the side of handrail is equipped with rotating shaft and rotatably connected with guardrail, the other end of rotating shaft is equipped with rotating disc, the inner side of rotating disc is equipped with fixed assembly two, the upper end of guardrail is provided with multiple fixed holes around the position of rotating shaft.The fixed assembly two includes pull rod, spring two, limiting plate and fixed rod, the inner side of rotating disc is penetrated by pull rod, one end of pull rod is equipped with limiting plate, the other end of limiting plate is equipped with fixed rod, the surface of pull rod is equipped with spring two.The other end of pull rod is equipped with pull handle, the two sides of spring two are fixedly connected with limiting plate and rotating disc by brazing.The filter screen angle adjusting mechanism further includes bolt, fixed disc and screw hole, one side of connecting plate is rotatably connected with guardrail by rotating shaft, and the other end of rotating shaft is equipped with fixed disc, the inner side of fixed disc is provided with bolt, the lower end of guardrail is provided with screw hole corresponding to bolt.

[0030] By setting the anti-landslide fixing mechanism, the fixed firmness between the bottom plate and the ground can be improved, and the problem of side turning of the anti-landslide device during use can be avoided, so as to reduce the protection effect on the coal slope. By setting the filter screen angle adjusting mechanism, the angle of the fine filter screen can be adjusted, so as to isolate the fine coal particles on the top of the coal slope. By setting the fixed assembly two, the handrail can be more conveniently positioned and fixed. By setting the filter screen angle adjusting mechanism, the angle between the guardrail and the connecting plate can be adjusted, so that the anti-landslide device can adapt to different inclination of the coal slope for protection work.

[0031] However, the prior art structure is too complex, and the range of the open-pit coal mine slope is relatively large, and the prior art is not suitable for large-scale slope protection. Therefore, the present application provides a slope anti-landslide device suitable for open-pit coal mines.

[0032] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The described embodiments are only part of the embodiments of the present application, not all. All other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] As shown in Figs. 1 to 4 The present application provides an open-pit coal mine slope anti-landslide device, comprising:

[0034] The protective net assembly is laid on the slope body 1, the top end of the protective net assembly is fixedly arranged at the top end of the slope body 1, and the bottom end of the protective net assembly is fixedly arranged at the bottom end of the slope body 1; a plurality of tension sensors 2 are arranged on the protective net assembly;

[0035] The anchoring mechanism is inserted into the slope body 1, the protective net assembly is fixedly connected with the anchoring mechanism, and the anchoring mechanism is used for connecting the grouting equipment;

[0036] The water guide assembly is arranged along the slope surface of the slope body 1 and is fixedly installed on the protective net assembly, and the water guide assembly is used for absorbing and guiding the rainwater falling on the slope surface;

[0037] The drainage ditch 3 is arranged at the bottom end of the slope body 1, and the drainage ditch 3 is used for converging the rainwater guided by the water guide assembly; a waterproof structure is laid on the wall surface of the drainage ditch 3;

[0038] The tension sensor 2 is electrically connected with the controller; the controller is electrically connected with an alarm, and the alarm is installed on the anchoring mechanism at the bottom of the slope body 1.

[0039] The present application can reduce the situation that the anchoring mechanism slides together when the landslide occurs in the slope body 1 by setting the protection net assembly on the slope body 1 and fixing the protection net assembly through the anchoring mechanism which is fixed on the slope body 1 in the form of grouting. Moreover, the soil of the slope body 1 acts on the protection net assembly when the deformation of the slope body 1 occurs, so that the value monitored by the tension sensor 2 changes greatly, the controller reminds the staff to check the target area and judge the reason according to the value fluctuation monitored by the tension sensor 2, and the controller directly controls the alarm to send an alarm signal when the value monitored by the tension sensor 2 exceeds the set threshold, thereby playing a warning role. In addition, the rainwater falling on the slope surface can be absorbed and guided into the drainage ditch 3 at the bottom of the slope body 1 by the water guide assembly, thereby reducing the adverse effects of rainwater on the slope body 1.

[0040] Further optimization scheme, the anchoring mechanism includes a hollow anchor rod 4, the hollow anchor rod 4 is inserted in the slope body 1, the top of the hollow anchor rod 4 is fixedly connected with a cover plate 5, the bottom of the cover plate 5 is fixedly connected with a connecting piece, the protection net assembly is fixedly connected with the cover plate 5 through the connecting piece, the top end of the hollow anchor rod 4 is provided with a threaded hole, the threaded hole is used for connecting a grouting device when grouting, and the threaded hole is threadedly connected with a plug 6 after grouting is completed.

[0041] By setting the anchor rod as a hollow structure, grouting in the slope body 1 is facilitated, thereby improving the shear strength of the slope body 1 and reducing the probability of landslide of the slope body 1 from the root. Moreover, the cover plate 5 and the connecting piece on the hollow anchor rod 4 are provided, so that the protection net assembly and the hollow anchor rod 4 are connected as a whole, thereby improving the protection strength of the protection net assembly. When the landslide occurs, the soil of the landslide can be intercepted by the protection net assembly, so that the hollow anchor rod 4 is prevented from being pulled out of the slope body 1, thereby reducing the deformation amount of the protection net assembly.

[0042] Further optimization scheme, in order to facilitate the fixation of the protection net assembly to the cover plate 5, the connecting piece includes a connecting pipe 7 fixedly connected to the cover plate 5, the bottom end of the connecting pipe 7 is provided with an opening, and a fastening bolt 8 is threadedly connected to the side of the connecting pipe 7 away from the hollow anchor rod 4; the protection net assembly is clamped in the connecting pipe 7 through the opening and is fixed by the fastening bolt 8.

[0043] Further optimization scheme, the protection net assembly includes a fixed beam 9, the bottom end and the top end of the slope body 1 are fixedly provided with the fixed beam 9, and a protection net is fixedly connected between the two fixed beams 9, the protection net is woven by vertical warp threads 10 and horizontal weft threads 11, and the connecting pipe 7 is sleeved on the vertical warp threads 10 of the protection net.

[0044] Further optimization scheme, the tensile force sensor 2 is arranged on the vertical warp 10 of the protective net, and the tensile force sensor 2 is fixedly connected in the connecting pipe 7 through the fastening bolt 8; both ends of the tensile force sensor 2 are provided with threaded interfaces 12, the vertical warp 10 of the protective net is fixedly connected with a wiring terminal 13, the wiring terminal 13 is rotatably connected with a threaded rod 14, and the threaded rod 14 is screw-connected in the threaded interface 12.

[0045] Further optimization scheme, the water guide assembly is a sponge strip 15.

[0046] Further optimization scheme, in order to avoid the rainwater absorbed by the sponge strip 15 from penetrating into the slope body 1 during the guiding process, the water guide assembly further comprises a waterproof film 16, the waterproof film 16 is a U-shaped structure, and the waterproof film 16 is fixedly covered at the bottom of the sponge strip 15.

[0047] Further optimization scheme, the distance between the two adjacent hollow anchor rods 4 is 5-8 m.

[0048] Further optimization scheme, a plurality of capillary grooves 17 are arranged on the outer wall of the hollow anchor rod 4, and the capillary grooves 17 are arranged along the axis direction of the hollow anchor rod 4.

[0049] Through the arrangement of the capillary grooves 17, a small amount of rainwater can penetrate into the slope body 1 through the capillary grooves 17 during rainfall, so that the soil moisture content of the slope body 1 is maintained at a certain degree, and the shear capacity of the soil of the slope body 1 is ensured.

[0050] Further optimization scheme, the vertical warp 10 and the horizontal weft 11 of the protective net are both steel wire ropes, and the outer side of the steel wire rope is covered with a nylon layer.

[0051] Through the arrangement of the nylon layer, when it rains, the nylon layer can produce a certain water absorption effect on the rainwater, so as to reduce the total amount of rainwater penetrating into the slope body 1, which helps to maintain the overall shear strength of the soil.

[0052] The open-pit coal mine slope anti-landslide device provided by the application has the advantages that:

[0053] The grouting of the slope body 1 through the hollow anchor rod 4 can improve the shearing capacity of the slope body 1, and can fundamentally reduce the probability of the slope body 1 landslide; through the setting of the protective net, the slope body 1 can be covered by the protective net, and when the slope body 1 deforms, the tensile sensor 2 arranged on the protective net can be used to monitor in time, so as to alarm the staff; and the protective net can also be used to intercept the landslide soil, and reduce the disaster degree of the landslide; through the setting of the sponge strip 15 and the waterproof film 16, the sponge strip 15 can be used to absorb and guide the precipitation, and the rainwater can be reduced to penetrate into the slope body 1, so that the harm of the rainwater to the slope body 1 is reduced, the water absorbed by the sponge strip 15 flows to the bottom of the slope body 1 under the action of gravity, and finally flows into the drainage ditch 3, so that the rainwater can be conveniently drained. The open-pit coal mine slope anti-landslide device provided by the present application can realize the drainage of the rainwater, reduce the probability of the landslide, and can timely protect and alarm when the landslide occurs, so as to solve the problems in the prior art.

[0054] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A device for preventing landslides of a slope of an open-pit coal mine, characterized in that, The utility model relates to a slope protection device, including: A protective net assembly is laid on the slope body (1), the top end of the protective net assembly is fixedly arranged at the top end of the slope body (1), and the bottom end of the protective net assembly is fixedly arranged at the bottom end of the slope body (1), a plurality of tension sensors (2) are arranged on the protective net assembly, An anchoring mechanism is inserted into the slope body (1), the protective net assembly is fixedly matched with the anchoring mechanism, and the anchoring mechanism is used for connecting a grouting device, A water guide assembly is arranged along the slope surface of the slope body (1) and is fixedly installed on the protective net assembly, and the water guide assembly is used for absorbing and guiding rainwater falling on the slope surface, A drainage ditch (3) is arranged at the bottom end of the slope body (1), and the drainage ditch (3) is used for converging the rainwater guided by the water guide assembly; a waterproof structure is arranged on the wall surface of the drainage ditch (3), The tension sensor (2) is electrically connected with the controller; the controller is electrically connected with an alarm, and the alarm is installed on the anchoring mechanism at the bottom of the slope body (1).

2. The open-pit coal mine slope landslide prevention device according to claim 1, characterized in that, The anchoring mechanism includes a hollow anchor rod (4) inserted into the slope body (1), the top of the hollow anchor rod (4) is fixedly connected with a cover plate (5), the bottom of the cover plate (5) is fixedly connected with a connecting piece, the protective net assembly is fixedly matched with the cover plate (5) through the connecting piece, and the top end of the hollow anchor rod (4) is provided with a threaded hole used for connecting the grouting device during grouting and threadedly connected with a plug (6) after grouting.

3. The open pit coal mine slope anti-landslide device according to claim 2, characterized in that, The connecting piece includes a connecting pipe (7) fixedly connected with the cover plate (5), the bottom end of the connecting pipe (7) is provided with an opening, and the side, away from the hollow anchor rod (4), of the connecting pipe (7) is threadedly connected with a fastening bolt (8); the protective net assembly is clamped in the connecting pipe (7) through the opening and is fixed through the fastening bolt (8).

4. The open pit coal mine slope anti-landslide device according to claim 3, characterized in that, The protective net assembly includes a fixed beam (9), the bottom end and the top end of the slope body (1) are fixedly provided with the fixed beam (9), the fixed beam (9) is fixedly connected with a protective net between the two fixed beams (9), the protective net is woven by vertical warp threads (10) and horizontal weft threads (11), and the connecting pipe (7) is sleeved on the vertical warp threads (10) of the protective net.

5. The open pit coal mine slope anti-landslide device according to claim 4, characterized in that, The tension sensor (2) is arranged on the vertical warp threads (10) of the protective net and is fixedly connected in the connecting pipe (7) through the fastening bolt (8); both ends of the tension sensor (2) are provided with threaded interfaces (12), the vertical warp threads (10) of the protective net are fixedly connected with terminal connectors (13), the terminal connectors (13) are rotatably connected with threaded rods (14), and the threaded rods (14) are threadedly connected in the threaded interfaces (12).

6. The open pit coal mine slope landslide prevention device according to claim 1, characterized in that, The water guide assembly is a sponge strip (15).

7. The open pit coal mine slope anti-landslide device according to claim 6, characterized in that, The water guide assembly further comprises a waterproof film (16) which is U-shaped and fixedly wrapped on the bottom of the sponge strip (15).

8. The open-pit coal mine slope landslide prevention device according to claim 2, characterized in that, The distance between two adjacent hollow anchor rods (4) is 5-8 m.

9. The open-pit coal mine slope landslide prevention device according to claim 2, characterized in that, A plurality of capillary grooves (17) are arranged on the outer wall of the hollow anchor rod (4) and arranged along the axis direction of the hollow anchor rod (4).

10. The open pit coal mine slope landslide prevention device according to claim 4, characterized in that, The vertical warp (10) and the horizontal weft (11) of the protective net are both steel wire ropes, and the outer side of the steel wire rope is wrapped with a nylon layer.

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