Open pit coal mine slope structure

Abstract

The utility model provides an open-pit coal mine slope structure which comprises a slope body, a plurality of slope surfaces arranged in a stepped mode in the height direction, and a plurality of slope surfaces arranged in a stepped mode in the height direction, and the heights of the slope surfaces are gradually increased in the direction away from the slope body. The water collecting structure is arranged on the lower side of the slope surface, the water collecting structure comprises a water collecting pipe and a water storage tank which are communicated with each other, the water collecting pipe and the water storage tank extend in the length direction of the slope surface, a water outlet is formed in the water storage tank and located in the end face of the slope body in the length direction, and the water collecting pipe is provided with a first end and a second end which are oppositely arranged; the first end is higher than the second end, the second end is used for being communicated with the water storage tank, and a collecting part is arranged on the side wall of the water collecting pipe and used for collecting rainwater on the slope. By means of the technical scheme, the problem that a slope structure in the prior art is prone to landslide when impacted by water flow can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of open-pit coal mine mining, and particularly relates to an open-pit coal mine slope structure. Background Art

[0002] At present, in the process of open-pit coal mine mining, with the coal mine being mined, a slope structure is usually formed at the edge of the mine pit or the edge of the soil pile.

[0003] Under the long-term seepage action, the rock mass at the slope structure is extremely prone to tensile cracks, the seepage characteristics change, which will reduce the shear strength of the rock mass and the seepage field changes. Especially once the rainy season comes, the water accumulated on the slope surface of the open-pit coal mine slope cannot be effectively drained as the rainfall increases, which will cause the slope body to collapse and damage, posing great hidden dangers to the stability and safe production of the open-pit coal mine slope. In the prior art, the slope surface is usually set at a certain inclination angle to make the water accumulated on the upper slope surface flow down to the next layer naturally by gravity to achieve the drainage of the slope surface. However, as the water flow increases, the slope surface below will be subjected to a greater impact. Especially, the rock mass of the open-pit coal mine slope is usually relatively loose, and the slope structure may slide or even collapse in the case of heavy rainfall. Summary of the Utility Model

[0004] The utility model provides an open-pit coal mine slope structure to solve the problem that the slope structure in the prior art is prone to landslide under the impact of water flow.

[0005] The utility model provides an open-pit coal mine slope structure, which includes: a slope body, the slope body has a plurality of slope surfaces arranged in a stepped manner along the height direction, and the height of the slope surface gradually increases along the direction away from the slope body; a water collection structure, the water collection structure is arranged on the side with a lower height of the slope surface, the water collection structure includes a water collection pipe and a water storage tank that are interconnected, the water collection pipe and the water storage tank extend along the length direction of the slope surface, a drain port is arranged on the water storage tank, the drain port is located on the end surface of the slope body along the length direction, the water collection pipe has a first end and a second end arranged oppositely, the height of the first end is greater than that of the second end, the second end is used for communicating with the water storage tank, and a collection part is arranged on the side wall of the water collection pipe, and the collection part is used for collecting rainwater on the slope surface.

[0006] Furthermore, there are a plurality of collection parts, the plurality of collection parts are arranged at intervals along the extension direction of the water collection pipe, a plurality of openings are arranged on the water collection pipe, the plurality of collection parts are arranged in one-to-one correspondence with the plurality of openings, and the collection part is communicated with the water collection pipe through the opening.

[0007] Furthermore, the collection part has a first opening and a second opening arranged oppositely, the first opening is used for communicating with the opening, the inner diameter of the collection part gradually decreases along the direction from the second opening to the first opening, and the end surface of the second opening does not protrude from the surface of the slope surface.

[0008] Further, a first filter screen is arranged at the second opening.

[0009] Further, there is an included angle α between the water collecting pipe and the horizontal plane, and 3° ≤ α ≤ 6°.

[0010] Further, the water storage tank further has a water inlet which is communicated with the water collecting pipe, and the height of the water inlet is greater than that of the drain outlet.

[0011] Further, a second filter screen is arranged at the water inlet.

[0012] Further, there is an included angle β between the slope surface and the horizontal plane, and 3° ≤ β ≤ 6°.

[0013] Further, there is a vertical surface between two adjacent slope surfaces in the height direction. The vertical surface connects the adjacent slope surfaces. The vertical surface has an inclination angle in the height direction, and the projections of the adjacent slope surfaces in the height direction do not overlap.

[0014] Further, a placement groove is arranged on the side with a lower height of the slope surface. The placement groove is used for placing the water collecting pipe, and the notch of the placement groove is arranged on the slope surface. The width of the placement groove gradually decreases from the notch to the bottom of the groove.

[0015] Applying the technical solution of the present application, the height of the slope surface gradually increases along the direction away from the slope body, that is, the slope surface has a certain inclination angle on the horizontal plane, and the side of the slope surface close to the slope body is lower than the side away from the slope body. In this way, the rainwater on the slope surface naturally flows towards the side close to the slope body under the action of gravity, and the rainwater on the corresponding slope surface is collected by the collection part of the water collection structure, so that the rainwater flows into the water storage tank through the water collecting pipe. After the rainwater is collected, it is discharged centrally or recycled for vegetation irrigation, etc. Compared with the traditional technical solution in which the rainwater is drained through multiple slope surfaces and gradually converges and flows out along the slope surface under the action of gravity, using the solution of the present application can discharge the rainwater on each slope surface in layers, reduce the impact on the slope surface located below the slope body. In the case where the rock mass of the open-pit coal mine slope is usually relatively loose, the risk of landslide or collapse of the slope is reduced, and the stability of the slope structure is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The attached drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 shows the structural schematic diagram of the open-pit coal mine slope structure provided by the present utility model;

[0018] Figure 2 shows Figure 1 the partial enlarged view of point A in

[0019] Figure 3 Shows a side view of the open-pit coal mine slope structure provided by the present utility model;

[0020] Figure 4 Shows Figure 3 The partial enlarged view at position B in

[0021] Among them, the above-mentioned drawings include the following reference numerals:

[0022] 100, slope body;

[0023] 200, slope surface; 210, placement groove;

[0024] 310, water collecting pipe;

[0025] 320, water storage tank; 321, water inlet; 322, water outlet;

[0026] 330, collection part;

[0027] 400, elevation. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the 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 embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way restrictive of the present utility model and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] As Figures 1 to 4 shown, the embodiments of the present utility model provide an open-pit coal mine slope structure, and the open-pit coal mine slope structure includes a slope body 100 and a water collection structure. Among them, the slope body 100 has a plurality of slope surfaces 200 arranged in a stepped manner along the height direction, and the height of the slope surface 200 gradually increases in the direction away from the slope body 100. The water collection structure is arranged on the side with a lower height of the slope surface 200, and the water collection structure includes a water collecting pipe 310 and a water storage tank 320 that are interconnected. The water collecting pipe 310 and the water storage tank 320 extend along the length direction of the slope surface 200. A water outlet 322 is arranged on the water storage tank 320, and the water outlet 322 is located on the end surface of the slope body 100 along the length direction. The water collecting pipe 310 has a first end and a second end arranged opposite to each other, the height of the first end is greater than the height of the second end, and the second end is used to communicate with the water storage tank 320. A collection part 330 is arranged on the side wall of the water collecting pipe 310, and the collection part 330 is used to collect the rainwater on the slope surface 200.

[0030] Refer to Figure 1As shown, in the present application, the x-direction is the width direction, the y-direction is the length direction, and the z-direction is the height direction.

[0031] Applying the technical solution of the present application, the height of the slope surface 200 gradually increases in the direction away from the slope body 100, that is, the slope surface 200 has a certain inclination angle with the horizontal plane in the x-direction, and the side of the slope surface 200 close to the slope body 100 is lower than the side away from the slope body 100. In this way, the rainwater on the slope surface 200 naturally flows towards the side close to the slope body 100 under the action of gravity, and the rainwater on the corresponding slope surface 200 is collected by the collection part 330 of the water collection structure, so that the rainwater flows through the water collection pipe 310 to the water storage tank 320, and the rainwater is collected and then discharged centrally or recycled for vegetation irrigation, etc. Compared with the traditional technical solution in which rainwater is gradually converged and drained along the slope surface through multiple slope surfaces, using the solution of the present application can discharge the rainwater on each slope surface 200 in layers, reduce the impact on the slope surface 200 located below the slope body 100, and reduce the risk of landslides or collapses of the slope in the case where the rock mass of the open-pit coal mine slope is usually relatively loose, and improve the stability of the slope structure.

[0032] Specifically, in the present application, a plurality of collection parts 330 are provided, and the plurality of collection parts 330 are arranged at intervals along the extension direction of the water collection pipe 310. A plurality of openings are provided on the water collection pipe 310, and the plurality of collection parts 330 are arranged in one-to-one correspondence with the plurality of openings. The collection part 330 is communicated with the water collection pipe 310 through the opening. Through the above settings, the plurality of collection parts 330 can collect the rainwater on the slope surface 200 at the same time, improve the drainage efficiency of the slope surface 200, prevent the slope surface 200 from storing water for too long, and the rainwater penetrates into the interior of the slope body 100 and affects the structural strength of the slope body 100.

[0033] Specifically, the number of the collection parts 330 can be correspondingly set according to the length of the slope surface 200, for example, a collection part 330 is set every 0.5 m or 0.3 m.

[0034] In a specific embodiment of the present application, the collection part 330 has a first opening and a second opening arranged oppositely. The first opening is used to communicate with the opening. The inner diameter of the collection part 330 gradually decreases in the direction from the second opening to the first opening, and the end surface of the second opening does not protrude from the surface of the slope surface 200. Through the above settings, the collection part 330 is a funnel-shaped structure, which is beneficial to increasing the collection area of the collection part 330 and facilitating the water conduction of the collection part 330.

[0035] It is understandable that the end face of the second opening of the collection part 330 does not protrude from the surface of the slope 200, that is, the end face of the second opening can be coplanar with the surface of the slope 200, or the end face of the second opening can be located below the slope 200, so as to improve the water collection effect of the collection part 330 and prevent the height of the remaining water surface from being lower than the height of the second opening after part of the accumulated water is discharged.

[0036] In other embodiments of the present application, the inner diameter of the collection part 330 can also remain unchanged and be a tubular structure to improve the drainage speed of the collection part 330.

[0037] Specifically, a first filter screen is arranged at the second opening. Through the above setting, sundries such as stone chips or weeds can be prevented from blocking the second opening or entering the water collection pipe 310, improving the water collection effect of the collection part 330 and the drainage effect of the water collection pipe 310.

[0038] Specifically in the present application, the water collection pipe 310 has a first end and a second end arranged oppositely, the height of the first end is greater than the height of the second end, the second end is used for communicating with the water storage tank 320, and an included angle α is formed between the water collection pipe 310 and the horizontal plane, so that the water flow in the water collection pipe 310 can be introduced into the water storage tank 320. And 3° ≤ α ≤ 6°. When α < 3°, the inclination angle of the water collection pipe 310 is too small, and the diversion effect on the water flow is poor; when α is greater than 6°, the inclination angle of the water collection pipe 310 is too large, and a larger accommodation space is required, which is not conducive to the construction of the slope 200. By setting 3° ≤ α ≤ 6° in the present application, the drainage effect and drainage speed of the water collection pipe 310 can be ensured while facilitating the construction of the slope 200. Specifically, α can be 3°, 4° or 6°.

[0039] Specifically, the water storage tank 320 further has a water inlet 321, the water inlet 321 is communicated with the water collection pipe 310, and the height of the water inlet 321 is greater than the height of the drain outlet 322. With such a setting, when there is a large amount of water stored in the water storage tank 320, the drain outlet 322 can be opened for drainage to discharge the stored water from the slope body 100. And by setting the height of the water inlet 321 to be greater than the height of the drain outlet 322, when the drain outlet 322 is opened, the water inlet 321 can also drain water instead of storing water while the water inlet 321 is admitting water.

[0040] Furthermore, a second filter screen is arranged at the water inlet 321. Through the above setting, the second filter screen at the water inlet 321 can prevent part of the sundries entering the water collection pipe 310 from entering the water storage tank 320 and prevent dirt blockage at the drain outlet 322.

[0041] In the present application, the mesh number of the second filter screen can be greater than the mesh number of the first filter screen to perform multi-stage filtration on the passing water flow.

[0042] In this application, the mesh number of the second filter screen can also be equal to that of the first filter screen to filter the passing water flow again.

[0043] Optionally, the water collecting pipe 310 can be communicated with the water storage tank 320 through a connecting pipe, so as to facilitate the selection of the length of the water collecting pipe 310 and the selection and construction of the water collecting pipe 310.

[0044] Optionally, the water collecting pipe 310 can be directly communicated with the water storage tank 320 to improve the connection effect between the water collecting pipe 310 and the water storage tank 320.

[0045] Specifically in this application, there is an included angle β between the slope surface 200 and the horizontal plane. Refer to Figure 3 As shown, 3° ≤ β ≤ 6°. When β is less than 3°, the inclination angle of the slope surface 200 is too small, and the diversion effect of the slope surface 200 is poor, which is not conducive to the discharge of rainwater. When β is greater than 6°, the inclination angle of the slope surface 200 is too large, and from the perspective of structural strength, it is easy to collapse. In this application, by setting 3° ≤ β ≤ 6°, the diversion effect of the slope surface 200 on rainwater can be ensured while ensuring the structural stability of the slope surface 200. Specifically, β can be 3°, 4°, or 6°.

[0046] Refer to Figure 3 As shown, there is a vertical surface 400 between two adjacent slope surfaces 200 in the height direction. The vertical surface 400 connects the two adjacent slope surfaces 200. The vertical surface 400 has an inclination angle in the height direction, and the projections of the two adjacent slope surfaces 200 in the height direction do not overlap. Through the above settings, the vertical surface 400 can also divert rainwater, so that the rainwater on the vertical surface 400 flows to the slope surface of the next layer and is collected through the collection part 330, further improving the drainage performance of the slope structure.

[0047] Refer to Figure 2 As shown, a placement groove 210 is provided on the side of the slope surface 200 with a lower height. The placement groove 210 is used to place the water collecting pipe 310, and the notch of the placement groove 210 is provided on the slope surface 200. The width of the placement groove 210 gradually decreases from the notch to the bottom of the groove. Through the above settings, the placement groove 210 is a trapezoidal groove as a whole. When the water collecting pipe 310 is placed in the placement groove 210 and the placement groove 210 is backfilled, when the water flow scours the fill soil in the placement groove 210, the structural stability of the placement groove 210 can be ensured, preventing the placement groove 210 from collapsing and affecting the inclination angle of the water collecting pipe 310, and ensuring the use effect of the water collection structure.

[0048] Note that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0049] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.

[0050] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc. are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present invention; the orientation words "inner, outer" refer to the inside and outside relative to the contour of each component itself.

[0051] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations for the spatial relative descriptions used herein will be made accordingly.

[0052] In addition, it should be noted that the use of terms such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. Without further declaration, the above terms have no special meaning, and thus should not be construed as limiting the protection scope of the present utility model.

[0053] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An open-pit coal mine slope structure, characterized in that, The open-pit coal mine slope structure includes: A slope body (100), which has a plurality of slope surfaces (200) arranged in a stepped manner along the height direction, and the height of the slope surface (200) gradually increases along the direction away from the slope body (100); A water collection structure, which is arranged on the side with a lower height of the slope surface (200). The water collection structure includes a water collection pipe (310) and a water storage tank (320) that are interconnected. The water collection pipe (310) and the water storage tank (320) extend along the length direction of the slope surface (200). A drain outlet (322) is provided on the water storage tank (320), and the drain outlet (322) is located on the end surface of the slope body (100) along the length direction. The water collection pipe (310) has a first end and a second end arranged opposite to each other. The height of the first end is greater than the height of the second end, and the second end is used to communicate with the water storage tank (320). A collection part (330) is provided on the side wall of the water collection pipe (310), and the collection part (330) is used to collect the rainwater on the slope surface (200).

2. The open-pit coal mine slope structure according to claim 1, wherein A plurality of the collection parts (330) are provided, and the plurality of the collection parts (330) are arranged at intervals along the extension direction of the water collection pipe (310). A plurality of openings are provided on the water collection pipe (310), and the plurality of the collection parts (330) are arranged in one-to-one correspondence with the plurality of the openings. The collection part (330) communicates with the water collection pipe (310) through the opening.

3. The open-pit coal mine slope structure according to claim 2, characterized in that The collection part (330) has a first opening and a second opening arranged opposite to each other. The first opening is used to communicate with the opening. The inner diameter of the collection part (330) gradually decreases along the direction from the second opening to the first opening, and the end surface of the second opening does not protrude from the surface of the slope surface (200).

4. The open-pit coal mine slope structure according to claim 3, characterized in that, A first filter screen is provided at the second opening.

5. The open-pit coal mine slope structure according to claim 1, characterized in that, An included angle α is formed between the water collection pipe (310) and the horizontal plane, and 3° ≤ α ≤ 6°.

6. The open-pit coal mine slope structure according to claim 1, characterized in that The water storage tank (320) further has a water inlet (321), and the water inlet (321) communicates with the water collection pipe (310). The height of the water inlet (321) is greater than the height of the drain outlet (322).

7. The open-pit coal mine slope structure according to claim 6, characterized in that A second filter screen is provided at the water inlet (321).

8. The open-pit coal mine slope structure according to claim 1, characterized in that, An included angle β is formed between the slope surface (200) and the horizontal plane, and 3° ≤ β ≤ 6°.

9. The open-pit coal mine slope structure according to claim 1, characterized in that There is a vertical surface (400) between two adjacent slope surfaces (200) in the height direction. The vertical surface (400) connects the two adjacent slope surfaces (200). The vertical surface (400) has an inclination angle in the height direction, and the projections of the two adjacent slope surfaces (200) in the height direction do not overlap.

10. The open-pit coal mine slope structure according to claim 1, characterized in that, A placement groove (210) is provided on the side with a lower height of the slope surface (200). The placement groove (210) is used to place the water collection pipe (310), and the notch of the placement groove (210) is provided on the slope surface (200). The width of the placement groove (210) gradually decreases from the notch to the bottom of the groove.

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