Underground water and rainfall drainage device for opencast coal mine
By setting up a drainage structure and drainage system on the slope flat plate of the open-pit coal mine, the problem of water accumulation on the slope flat plate is solved, the structural stability is improved and the effective utilization of water is achieved.
Patent Information
- Application Number
- CN202422364656.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-26
AI Technical Summary
The flat slope of open-pit coal mines is prone to water accumulation during mining, resulting in a decrease in the strength of the rock mass and prone to landslide disasters.
A groundwater and rainfall drainage device for open-pit coal mines is designed, including multiple drainage structures arranged along the slope. The water flow is collected using the drainage pipe and the water collection pool, and transported to the drainage pool through the collection pipe. The water accumulation is discharged in combination with the water pump to prevent water accumulation on the slope flat plate.
Effectively avoid water accumulation on the flat slope, reduce the risk of landslides or landslides, improve the stability of the flat slope structure, and realize the centralized storage and utilization of water.
Smart Images
Figure CN223088591U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical fields of water prevention and slope treatment in open-pit coal mines, and specifically relates to a device for draining groundwater and rainfall in an open-pit coal mine. Background Art
[0002] During the exploitation of open-pit coal mines, with the exploitation of coal mines, slope structures usually form at the edges of the mine pits or the edges of the piled soil. There is abundant groundwater in the ground of some open-pit coal mines. Under the disturbance of the mining process, the groundwater system is damaged, and a large amount of mine water flows to the bench of the slope. And in the rainy season, there is a lot of rainwater temporarily stored on the bench of the slope. The accumulated water caused by groundwater and rainfall has the effect of softening the rock mass, which is likely to cause problems such as the reduction of the strength of rock and soil masses, disintegration when encountering water, and subsidence of the bench of the slope, thus triggering serious landslide disasters.
[0003] Therefore, it is necessary to develop a device for draining groundwater and rainfall in an open-pit coal mine to realize the discharge of the accumulated water on the bench of the slope. Content of the Utility Model
[0004] The utility model provides a device for draining groundwater and rainfall in an open-pit coal mine to solve the problem that the bench of the slope in the prior art is prone to water accumulation and affects safety.
[0005] The utility model provides a device for draining groundwater and rainfall in an open-pit coal mine. The bench of the slope of the open-pit coal mine has a plurality of slopes arranged stepwise in the height direction. The slopes are inclined planes. The device for draining groundwater and rainfall in the open-pit coal mine includes:
[0006] A plurality of drainage structures. Each drainage structure is arranged on the lower side of a slope with a lower height. Each drainage structure includes a drainage pipe and a water collecting pool that are interconnected. The drainage pipe and the water collecting pool extend along the length direction of the slope. A water outlet is arranged on the water collecting pool, and the water outlet is located on the end face of the bench of the slope along the length direction. The drainage pipe 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, and the second end is used to communicate with the water collecting pool. A water collecting member is arranged on the side wall of the drainage pipe, and the water collecting member is used to collect the water on the slope.
[0007] A collecting pipe and a drainage pool. Among the water collecting pools of two adjacent drainage structures, the water outlet of the upper water collecting pool is communicated with the lower water collecting pool through a collecting pipe; the drainage pool is located below the plurality of drainage structures, and the drainage pool is communicated with the water outlet of the lowermost water collecting pool through a collecting pipe.
[0008] Further, both the drainage pipe and the collecting pipe are PVC pipes, the side wall of the water collecting pool is made of rubber, and a support structure is arranged in the water collecting pool to support the side wall of the water collecting pool.
[0009] Further, the drainage structure further includes a water pump, and the water pump is used to drain the water in the water collecting pool.
[0010] Furthermore, a plurality of water collecting members are provided. The plurality of water collecting members are arranged at intervals along the length direction of the drainage pipe. A plurality of interfaces are provided on the drainage pipe, and each water collecting member communicates with the drainage pipe through one interface.
[0011] Furthermore, the water collecting member has a first opening and a second opening which are oppositely arranged. The second opening is located above the first opening. The first opening communicates with the interface. The inner diameter of the water collecting member gradually decreases from the second opening to the first opening, and the end face of the second opening does not protrude from the surface of the slope.
[0012] Furthermore, a first filtering structure is provided at the second opening.
[0013] Furthermore, there is an included angle α between the drainage pipe and the horizontal plane, and 2° ≤ α ≤ 5°.
[0014] Furthermore, the water collecting pool also has a water inlet which communicates with the drainage pipe, and the height of the water inlet is greater than the height of the water outlet.
[0015] Furthermore, a second filtering structure is provided at the water inlet.
[0016] Furthermore, a collecting groove is provided on the side with a lower slope height. The collecting groove is used to arrange the drainage pipe, and the notch of the collecting groove is arranged on the slope. The width of the collecting groove gradually decreases from the notch to the bottom of the groove.
[0017] Applying the technical solution of the present application, the slope has a certain inclination angle on the horizontal plane, and the side of the slope close to the bench of the slope is lower than the side far from the bench of the slope. Thus, the water on the slope naturally flows towards the side close to the bench of the slope under the action of gravity, and the water on the corresponding slope is collected by the water collecting member of the drainage structure, and the water flows through the drainage pipe to the water collecting pool. After the water is collected, the water is conveyed to the drainage pool at a lower position through a plurality of collecting pipes under the action of gravity, thereby avoiding water accumulation on the bench of the slope, reducing the risk of landslide or collapse of the bench of the slope, and improving the stability of the bench structure of the slope. Moreover, the water collected in the drainage pool can be centrally stored and utilized to avoid waste. Compared with the prior art solution of draining water through multiple-level slopes and gradually converging and flowing out along the slope under the action of gravity, using the solution of the present application can discharge the water on each slope in layers, reduce the impact on the slope below the bench of the slope, and reduce the risk of landslide or collapse of the bench of the slope and improve the stability of the bench structure of the slope in the case where the rock mass on the bench of the open-pit coal mine slope is usually relatively loose. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The accompanying 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:
[0019] Figure 1 shows the structural schematic diagram of the open-pit coal mine groundwater and rainfall drainage device provided by the present utility model;
[0020] Figure 2 shows Figure 1 the partial enlarged view at A in
[0021] Figure 3 shows the side view of the open-pit coal mine groundwater and rainfall drainage device provided by the present utility model;
[0022] Figure 4 shows Figure 3 the partial enlarged view at B in
[0023] Among them, the above-mentioned drawings include the following reference numerals:
[0024] 10, bench;
[0025] 20, slope surface;
[0026] 21, collection tank;
[0027] 31, drainage pipe;
[0028] 32, water collection pool;
[0029] 321, water inlet;
[0030] 322, water outlet;
[0031] 33, water collection member;
[0032] 40, inclined surface;
[0033] 50, collecting pipe;
[0034] 60, drainage pool. Detailed implementation manners
[0035] 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.
[0036] As Figures 1 to 4As shown in the figure, an embodiment of the present utility model provides a groundwater and rainfall drainage device for open-pit coal mines. The slope bench 10 of the open-pit coal mine has a plurality of slopes 20 arranged in steps along the height direction. The slope 20 is an inclined plane. It is characterized in that the groundwater and rainfall drainage device for open-pit coal mines includes:
[0037] A plurality of drainage structures, each drainage structure is arranged on the lower side of a slope 20 with a lower height. The drainage structure includes a drainage pipe 31 and a catch basin 32 that are connected to each other. The drainage pipe 31 and the catch basin 32 extend along the length direction of the slope 20. An outlet 322 is provided on the catch basin 32. The outlet 322 is located on the end face of the slope bench 10 along the length direction. The drainage pipe 31 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. The second end is used to communicate with the catch basin 32. A water collection member 33 is provided on the side wall of the drainage pipe 31. The water collection member 33 is used to collect the water on the slope 20. The water on the slope 20 can be the groundwater flowing to the slope 20 during the mining process or rainwater;
[0038] A collecting pipe 50 and a drainage pool 60. Among the catch basins 32 of two adjacent drainage structures, the outlet 322 of the upper catch basin 32 is connected to the lower catch basin 32 through a collecting pipe 50. The drainage pool 60 is located below the plurality of drainage structures. The drainage pool 60 is connected to the outlet 322 of the catch basin 32 at the lowest level through a collecting pipe 50.
[0039] As Figure 1 shown in the figure, in this solution, the x direction is the width direction, the y direction is the length direction, and the z direction is the height direction.
[0040] Applying the technical solution of the present application, the height of the slope surface 20 gradually increases in the direction away from the slope bench 10. That is, the slope surface 20 has a certain inclination angle with the horizontal plane in the x direction, and the side of the slope surface 20 close to the slope bench 10 is lower than the side away from the slope bench 10. In this way, the water on the slope surface 20 naturally flows to the side close to the slope bench 10 under the action of gravity, and the water on the corresponding slope surface 20 is collected by the water collection member 33 of the drainage structure. The water flows through the drainage pipe 31 to the water collection pool 32. After the water is collected, it is transported to the lower drainage pool 60 under the action of gravity through multiple converging pipes 50, thereby avoiding water accumulation on the slope bench 10, reducing the risk of landslides or collapses on the slope bench 10, and improving the stability of the slope bench structure. Moreover, the water collected in the drainage pool 60 can be centrally stored and utilized to avoid waste. Compared with the prior art solution in which water is gradually converged and drained along the slope through multi-level slope drainage, using the solution of the present application can discharge the water on each slope surface 20 in layers, reduce the impact on the slope surface 20 located below the slope bench 10, and reduce the risk of landslides or collapses on the slope bench in the case where the rock mass of the slope bench in the open-pit coal mine is usually relatively loose, and improve the stability of the slope bench structure.
[0041] In a specific embodiment, both the drainage pipe 31 and the converging pipe 50 are PVC pipes, the side wall of the water collection pool 32 is made of rubber, and a support structure is arranged in the water collection pool 32 to support the side wall of the water collection pool 32. The above materials have low cost and are easy to process.
[0042] Among them, the drainage structure further includes a water pump, and the water pump is used to drain the water in the water collection pool 32. For example, the water in the water collection pool 32 is transported to a lower water collection pool 32 or drainage pool 60 through the water pump to avoid incomplete drainage by gravity.
[0043] In this solution, multiple water collection members 33 are provided, and the multiple water collection members 33 are arranged at intervals along the length direction of the drainage pipe 31. Multiple interfaces are arranged on the drainage pipe 31, and each water collection member 33 is respectively communicated with the drainage pipe 31 through an interface. Through the above arrangement, the multiple water collection members 33 can collect the water on the slope surface 20 simultaneously, improve the drainage efficiency of the slope surface 20, prevent the water on the slope surface 20 from staying for too long, and prevent the water from penetrating into the interior of the slope bench 10 and affecting the structural strength of the slope bench 10.
[0044] Specifically, the number of the water collection members 33 can be correspondingly set according to the length of the slope surface 20, such as setting a water collection member 33 every 0.6 m or 0.4 m.
[0045] In a specific embodiment of the present application, the water collecting member 33 has a first opening and a second opening arranged opposite to each other. The second opening is located above the first opening. The first opening is used to communicate with the interface. The inner diameter of the water collecting member 33 gradually decreases along the direction from the second opening to the first opening. The end face of the second opening does not protrude from the surface of the slope 20. Through the above arrangement, the water collecting member 33 has a funnel-shaped structure, which is beneficial to increasing the collecting area of the water collecting member 33 and facilitating the water guiding of the water collecting member 33.
[0046] Among them, the end face of the second opening of the water collecting member 33 does not protrude from the surface of the slope 20, that is, the end face of the second opening can be coplanar with the surface of the slope 20, or the end face of the second opening can be located below the surface of the slope 20, so as to improve the water collecting effect of the water collecting member 33 and prevent the remaining water level from being lower than the height of the second opening after part of the accumulated water is discharged.
[0047] Specifically, a first filtering structure is provided at the second opening. Through the above arrangement, it is possible to prevent sundries such as stone chips or weeds from blocking the second opening or entering the drainage pipe 31, improve the water collecting effect of the water collecting member 33, and improve the drainage effect of the drainage pipe 31.
[0048] Among them, the drainage pipe 31 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. The second end is used to communicate with the water collecting pool 32. An included angle α is formed between the drainage pipe 31 and the horizontal plane, so that the water flow in the drainage pipe 31 can be introduced into the water collecting pool 32. And 2° ≤ α ≤ 5°. When α < 2°, the inclination angle of the drainage pipe 31 is too small, and the guiding effect on the water flow is poor; when α is greater than 5°, the inclination angle of the drainage pipe 31 is too large, and a larger accommodation space is required, which is not conducive to the construction of the slope 20. By setting 2° ≤ α ≤ 5° in the present application, the drainage effect and drainage speed of the drainage pipe 31 can be ensured while facilitating the construction of the slope 20.
[0049] Specifically, the water collecting pool 32 further has a water inlet 321. The water inlet 321 is communicated with the drainage pipe 31. The height of the water inlet 321 is greater than the height of the water outlet 322. With such an arrangement, when there is a large amount of water stored in the water collecting pool 32, the water outlet 322 can be opened for drainage, so that the stored water is discharged from the slope bench 10. And by setting the height of the water inlet 321 to be greater than the height of the water outlet 322, when the water outlet 322 is opened, the water inlet 321 can also drain water instead of storing water while the water inlet 321 is admitting water.
[0050] Furthermore, a second filtering structure is provided at the water inlet 321. Through the above arrangement, the second filtering structure at the water inlet 321 can prevent some sundries entering the drainage pipe 31 from entering the water collecting pool 32 and prevent clogging at the water outlet 322.
[0051] In this application, the mesh number of the second filtering structure can be greater than that of the first filtering structure to perform multi-stage filtering on the passing water flow.
[0052] Alternatively, the mesh number of the second filtering structure can also be equal to that of the first filtering structure to re-filter the passing water flow.
[0053] Among them, the drainage pipe 31 can be communicated with the catch basin 32 through a connecting pipe, so as to facilitate the selection of the length of the drainage pipe 31 and facilitate the selection and construction of the drainage pipe 31.
[0054] Alternatively, the drainage pipe 31 can be directly communicated with the catch basin 32 to improve the connection effect between the drainage pipe 31 and the catch basin 32.
[0055] Specifically in this application, there is an included angle β between the slope surface 20 and the horizontal plane, as Figure 3 shown, 2° ≤ β ≤ 5°. When β is less than 2°, the inclination angle of the slope surface 20 is too small, and the water diversion effect of the slope surface 20 is poor, which is not conducive to the discharge of water. When β is greater than 5°, the inclination angle of the slope surface 20 is too large, from the perspective of structural strength, it is easy to collapse. In this application, by setting 2° ≤ β ≤ 5°, while ensuring the structural stability of the slope surface 20, the water diversion effect of the slope surface 20 can be ensured.
[0056] As Figure 3 shown, there is an inclined surface 40 between two adjacent slope surfaces 20 in the height direction. The inclined surface 40 connects the two adjacent slope surfaces 20. Through the above setting, the inclined surface 40 can also divert water, so that the water flow on the inclined surface 40 flows to the next layer of slope surface and is collected by the water collecting member 33, further improving the drainage performance of the slope bench structure.
[0057] As Figure 2 shown, a collecting groove 21 is provided on the side of the slope surface 20 with a lower height. The collecting groove 21 is used to arrange the drainage pipe 31, and the notch of the collecting groove 21 is arranged on the slope surface 20. The width of the collecting groove 21 gradually decreases from the notch to the bottom of the groove. Through the above setting, the collecting groove 21 is a trapezoidal groove as a whole. When the drainage pipe 31 is placed in the collecting groove 21 and the collecting groove 21 is backfilled, when the water flow scours the fill soil in the collecting groove 21, the structural stability of the collecting groove 21 can be ensured, preventing the collecting groove 21 from collapsing and affecting the inclination angle of the drainage pipe 31, and ensuring the use effect of the drainage structure.
[0058] It should be noted that the terms used herein are for the purpose of describing specific embodiments only and are 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 "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0059] Unless otherwise specifically stated, the relative arrangements of the components and steps set forth in these embodiments, numerical expressions, and numerical values do not limit the scope of the present invention. At the same time, it should be understood that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. 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.
[0060] 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" are generally based on the orientation or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Without contrary instructions, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.
[0061] 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" the other devices or structures. Thus, the exemplary term "above" can include both 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.
[0062] In addition, it should be noted that the use of terms such as "first", "second" etc. to define components is only for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings, and thus should not be construed as limiting the protection scope of the present utility model.
[0063] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modifications, equivalent replacements, improvements, 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 underground water and rainfall diversion device for an open-pit coal mine. The bench flat of the open-pit coal mine slope (10) has a plurality of slopes (20) arranged in a stepped manner along the height direction. The slope (20) is an inclined plane, and it is characterized in that, The open-pit coal mine groundwater and rainfall drainage device includes: A plurality of drainage structures, each drainage structure is arranged on the lower side of one of the slopes (20). The drainage structure includes a drainage pipe (31) and a water collection pool (32) that are connected to each other. The drainage pipe (31) and the water collection pool (32) extend along the length direction of the slope (20). An outlet (322) is arranged on the water collection pool (32), and the outlet (322) is located on the end face of the slope bench (10) along the length direction. The drainage pipe (31) has a first end and a second end that are oppositely arranged. 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 collection pool (32). A water collection member (33) is arranged on the side wall of the drainage pipe (31), and the water collection member (33) is used to collect the water on the slope (20); A collecting pipe (50) and a drainage pool (60). Among the water collection pools (32) of two adjacent drainage structures, the outlet (322) of the upper water collection pool (32) is connected to the lower water collection pool (32) through a collecting pipe (50); the drainage pool (60) is located below the plurality of drainage structures, and the drainage pool (60) is connected to the outlet (322) of the lowermost water collection pool (32) through a collecting pipe (50).
2. The open-pit coal mine groundwater and rainfall drainage device according to claim 1, wherein Both the drainage pipe (31) and the collecting pipe (50) are PVC pipes, the side wall of the water collection pool (32) is rubber, and a support structure is arranged inside the water collection pool (32) to support the side wall of the water collection pool (32).
3. The open-pit coal mine groundwater and rainfall diversion device according to claim 1, characterized in that, The drainage structure further includes a water pump, and the water pump is used to drain the water in the water collection pool (32).
4. The open-pit coal mine groundwater and rainfall diversion device according to claim 1, wherein, A plurality of water collection members (33) are arranged, and the plurality of water collection members (33) are arranged at intervals along the length direction of the drainage pipe (31). A plurality of interfaces are arranged on the drainage pipe (31), and each water collection member (33) is connected to the drainage pipe (31) through an interface.
5. The open-pit coal mine groundwater and rainfall drainage device according to claim 4, characterized in that, The water collection member (33) has a first opening and a second opening that are oppositely arranged. The second opening is located above the first opening. The first opening is connected to the interface. The inner diameter of the water collection member (33) gradually decreases along the direction from the second opening to the first opening, and the end face of the second opening does not protrude from the surface of the slope (20).
6. The open-pit coal mine groundwater and rainfall drainage device according to claim 5, characterized in that, A first filtering structure is arranged at the second opening.
7. The open-pit coal mine groundwater and rainfall drainage device according to claim 1, characterized in that, An included angle α is formed between the drainage pipe (31) and the horizontal plane, and 2° ≤ α ≤ 5°.
8. The open-pit coal mine groundwater and rainfall drainage device according to claim 1, characterized in that The water collection pool (32) further has a water inlet (321), the water inlet (321) is connected to the drainage pipe (31), and the height of the water inlet (321) is greater than the height of the outlet (322).
9. The open-pit coal mine groundwater and rainfall drainage device according to claim 8, characterized in that, A second filtering structure is arranged at the water inlet (321).
10. The open-pit coal mine groundwater and rainfall drainage device according to claim 1, characterized in that, A collection groove (21) is provided on the side with a lower height of the slope surface (20). The collection groove (21) is used to arrange the drainage pipe (31), and the notch of the collection groove (21) is arranged on the slope surface (20). The width of the collection groove (21) gradually decreases from the notch to the bottom of the groove.