Slope anti-collapse structure
By setting up a combined structure of drainage channels, steps, geotextile bags, and drainage pipes on the cutoff dam, the problem of insufficient seepage drainage capacity of the cutoff dam was solved, achieving efficient drainage and improved slope stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-03-27
AI Technical Summary
Existing cutoff dam structures have limited seepage drainage capacity during mineral resource extraction, leading to continuously increasing seepage pressure and posing a risk of collapse.
A three-dimensional drainage network is formed by combining drainage channels, steps, geotextile bags, and drainage pipes. The drainage channels guide seepage water, the steps provide support, the geotextile bags provide protection, and the drainage pipes discharge water flow. Combined with a permeable layer and a waterproof layer, the drainage efficiency is improved.
It significantly improves the drainage efficiency of the cutoff dam, reduces seepage pressure, decreases the risk of collapse, and ensures slope stability.
Smart Images
Figure CN224048179U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of seepage dam protection, and particularly relates to a slope anti-sliding and anti-slumping slope structure. BACKGROUND
[0002] In the process of mineral resource exploitation, the stability of the ore heap seepage dam directly affects production safety and ecological environment, the existing seepage dam structure often appears seepage, the seepage water drainage capacity of the existing seepage dam slope protection structure is limited, deep seepage cannot be effectively drained, and with the passage of time, the internal seepage pressure continuously increases, and the dam body still has the hidden danger of landslides.
[0003] Therefore, it is necessary to provide an improved technical scheme for the above-mentioned deficiencies of the prior art. UTILITY MODEL CONTENT
[0004] The utility model discloses a slope anti-sliding and anti-slumping slope structure.
[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0006] A slope anti-sliding and anti-slumping slope structure comprises:
[0007] A drainage groove is arranged at the toe of the seepage dam and extends horizontally along the extension direction of the seepage dam, and stones are stacked in the drainage groove and at the toe;
[0008] A step is arranged on the slope surface of the seepage dam and extends horizontally along the extension direction of the seepage dam;
[0009] A geotextile bag layer is formed by laying a plurality of geotextile bags along the slope surface of the seepage dam and the step;
[0010] A plurality of drainage pipes are arranged in the seepage dam, one end of the drainage pipes is fan-shaped, the other end of the drainage pipes extends through the slope surface of the seepage dam and protrudes from the geotextile bag layer.
[0011] Preferably, one end of the drainage pipe is inclined upward at a certain angle corresponding to the seepage dam, and the gap between the drainage pipe and the geotextile bag layer is filled with clay or water-stopping material.
[0012] Preferably, the width of the step is not less than 2m.
[0013] Preferably, a permeation layer is arranged between the geotextile bag layer and the seepage dam.
[0014] Preferably, the permeation layer is geotextile and / or geogrid.
[0015] Preferably, a waterproof layer corresponding to the stones is arranged at the bottom of the drainage groove and the toe of the seepage dam.
[0016] Preferably, the drain pipe comprises a drainage section, a seepage section and a super-drilling section, the drainage section extends to the geotextile bag layer, the seepage section is provided with an array of seepage holes, and the super-drilling section is blocked by a filter screen.
[0017] Preferably, the seepage section is wrapped with geotextile on the outside.
[0018] Beneficial effects: the application protects the slope surface of the intercepting dam by the geotextile bag, and combines the drain pipe to drain the seepage water inside the intercepting dam, thereby significantly improving the drainage efficiency of the intercepting dam, reducing the seepage pressure inside the intercepting dam, and reducing the possibility of landslides of the intercepting dam slope. BRIEF DESCRIPTION OF DRAWINGS
[0019] The drawings accompanying the specification of the application form a part of the specification and serve to further illustrate the application. The schematic embodiments of the application and the description thereof serve to explain the application and do not constitute an undue limitation on the application. In the drawings:
[0020] Fig. 1 Structure diagram of the slope in the specific embodiment provided by the application;
[0021] Fig. 2 Structure diagram of the drain pipe in the specific embodiment provided by the application.
[0022] In the drawings: 1, intercepting dam; 2, drain pipe; 3, geotextile bag; 4, step; 5, block stone; 6, drainage groove; 7, permeable layer; 201, drainage section; 202, seepage section; 203, super-drilling section; 204, filter screen. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the application will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the application, but not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the application.
[0024] In the description of the utility model, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and do not require the utility model to be necessarily constructed and operated in a particular orientation, therefore, cannot be understood as limiting the utility model. The terms "connected", "connected" used in the utility model should be understood broadly, for example, can be fixed connection, can also be detachable connection, can be directly connected, or indirectly connected through an intermediate part, and those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.
[0025] The utility model will be described in detail below with reference to the drawings and in combination with the embodiments. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.
[0026] As Figs. 1-2 shown, the utility model provides a kind of side slope anti-sloughing side slope structure, by the synergies of drainage groove 6, step 4, geotextile bag layer and optimization drainage pipe 2 way, realize "water guide-support-reinforcement" integrated protection, to form three-dimensional drainage network, side slope structure is arranged in the collapse area of intercepting dam 1 or the area prone to collapse, of course, it can also be paved with the slope surface of intercepting dam 1, side slope structure includes drainage groove 6, step 4, geotextile bag layer, drainage groove 6 is arranged in the slope foot of intercepting dam 1, drainage groove 6 uses trapezoidal section or square section, drainage groove 6 extends horizontally along the extension direction of intercepting dam 1, to guide the seepage water discharged to purification pond, avoid seepage water pollution environment, there is block stone 5 in drainage groove 6 and slope foot, it can be very high seepage or flow performance under the premise of guaranteeing support capacity, does not affect seepage water drainage. Step 4 is arranged on the slope surface of collapse area and extends horizontally along the extension direction of intercepting dam 1, the width of step 4 is greater than or equal to 2m, surface paving crushed stone leveling layer, according to the height of intercepting dam 1, it is set in multiple stages, every stage is 2m high, 3m wide, surface paving 10cm thick crushed stone;Geotextile bag 3 uses 400g / m 2 polypropylene bag 5-20mm continuous gradation sand and stone, multiple geotextile bags 3 are laid along the slope surface of intercepting dam 1 and step 4 to form geotextile bag layer, to protect the slope surface, guarantee the stability of slope surface, drainage pipe 2 is arranged in intercepting dam 1, one end of multiple drainage pipes 2 is fan-shaped divergence, the other end extends to the slope surface of collapse area of intercepting dam 1 and extends out of geotextile bag layer.
[0027] In an optional embodiment, the drainage pipe 2 is inclined upward at an angle corresponding to one end of the cutoff dam 1, generally inclined at 10-15°, thereby forming a slope to guide seepage water, and the gap between the drainage pipe 2 and the geotextile layer is filled with clay or water-stopping material to ensure the stability and sealing between the drainage pipe 2 and the geotextile layer.
[0028] Further, positioning devices corresponding to the plurality of drainage pipes 2 are provided at the slope of the cutoff dam 1, which fix the end of the plurality of drainage pipes 2 aggregated with each other, avoiding displacement of the drainage pipe 2 caused by internal ground stress changes or settlement of the cutoff dam 1, and the positioning devices are strip-shaped structures extending along the same horizontal line of the cutoff dam 1, having a plurality of positioning notches in the length direction, and the drainage pipe 2 extends out of the geotextile 3 after passing through the positioning device.
[0029] Generally, the positioning device is strip-shaped or square-shaped, or a plurality of drainage pipes 2 are provided, and two or more positioning devices can be spliced together, and a plurality of positioning notches corresponding to the plurality of drainage pipes 2 extending along the length direction are provided in the positioning device, and the plurality of drainage pipes 2 extend into the plurality of positioning notches, respectively. The positioning notches can be square-shaped or circular-shaped.
[0030] In an optional embodiment, the positioning device is embedded in the slope of the cutoff dam 1 and close to the slope surface, and clay or water-stopping material is filled between the positioning notches and the drainage pipe 2 to improve the connection compactness.
[0031] The positioning device is a strip-shaped metal plate, and a plurality of positioning notches are provided on the metal plate by cutting, and the diameter of the circular-shaped positioning notches is greater than the diameter of the drainage pipe 2, and the inscribed circle of the square-shaped positioning notches is greater than the diameter of the drainage pipe 2. A baffle corresponding to the two sides of the positioning device is provided on the drainage pipe 2, and a gap is left between the two baffles and the positioning device.
[0032] In an optional embodiment, a permeable layer 7 is laid between the geotextile layer and the cutoff dam 1. The permeable layer 7 is geotextile and / or geogrid, and soil nails are used to fix the permeable layer 7, thereby further containing the stability of the slope, the drainage channel 6 is prefabricated with reinforced concrete or assembled with HDPE plastic modules, and the step 4 can be a plain soil rammed, a reinforced soil step 4 or a reinforced concrete frame step 4.
[0033] In an optional embodiment, a waterproof layer corresponding to the block stone 5 is provided at the bottom of the drainage channel 6 and the toe of the cutoff dam 1, which can be a waterproof film or a waterproof board, thereby guiding seepage water.
[0034] In an optional embodiment, the drain pipe 2 comprises a drainage section 201, a seepage section 202 and an overbore section 203, the drainage section 201 extends to the earthwork bag layer, the seepage section 202 is provided with an array of seepage holes, and the overbore section 203 is provided with a blockage through a filter screen 204. A drainage channel 6 corresponding to the outlet of the drain pipe 2 is arranged on the side slope of the seepage dam 1, and the drainage channel 6 extends to a liquid collecting channel, so as to purify the seepage water, avoid the pollution of the seepage water in the mine heap to the environment, and further ensure the filtering capacity. The seepage section 202 is wrapped with a geotextile on the outside, so as to avoid that the sand and gravel in the mine heap enter the drain pipe 2 along with the seepage water.
[0035] The segmented design of the drain pipe 2 cooperates with the geotextile filtering to ensure the long-term drainage efficiency.
[0036] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application is within the protection scope of the pending patent claim of the present application.
Claims
1. A slope anti-sloughing slope structure, characterized by, The application relates to a drainage ditch for a seepage control dam. The drainage ditch is arranged at the toe of the seepage control dam and extends horizontally along the extension direction of the seepage control dam, and stones are stacked in the drainage ditch and at the toe of the seepage control dam; A step is arranged on the slope surface of the seepage control dam and extends horizontally along the extension direction of the seepage control dam; A plurality of earthwork bags are arranged on the slope surface and the step of the seepage control dam to form an earthwork bag layer; A plurality of drainage pipes are arranged in the seepage control dam, one end of the drainage pipes is fan-shaped, the other end of the drainage pipes extends through the slope surface of the seepage control dam and protrudes from the earthwork bag layer.
2. The anti-sloughing slope structure according to claim 1, wherein The drainage pipes are inclined upward at a certain angle corresponding to one end of the seepage control dam, and the gap between the drainage pipes and the earthwork bag layer is filled with clay or water-stopping material.
3. The anti-sloughing slope structure according to claim 1, wherein The width of the step is not less than 2 m.
4. The anti-sloughing slope structure according to claim 1, wherein A permeation layer is arranged between the earthwork bag layer and the seepage control dam.
5. The anti-sloughing slope structure according to claim 4, wherein The permeation layer is geotextile and / or geogrid.
6. The anti-sloughing slope structure of claim 1, wherein, A waterproof layer corresponding to the stones is arranged at the bottom of the drainage ditch and the toe of the seepage control dam.
7. The anti-sloughing slope structure of claim 1, wherein The drainage pipe comprises a drainage section, a water permeation section and an over-drilling section, the drainage section extends to the earthwork bag layer, the water permeation section is provided with arrayed water permeation holes, and the over-drilling section is blocked by a filter screen.
8. The anti-sloughing slope structure of claim 7, wherein, The water permeation section is wrapped with geotextile.