Water seepage blind pipe suitable for existing side slope

Abstract

The utility model relates to the technical field of side slope drainage, in particular to a water seepage blind pipe suitable for an existing side slope, and when underground water seeps into the water seepage blind pipe, water firstly enters the pipe through drainage holes in the side wall of a supporting pipe. The supporting pipe is made of a hard material and plays a role in supporting and protecting an internal filtering system. Compared with a plastic pipeline which is directly arranged in the supporting pipe and provided with holes, the woven filtering pipe has the advantages that the gap structure is more complex and fine, impurities such as fine soil particles in underground water can be more effectively intercepted, the filtering precision and the drainage quality are improved, and the woven structure has certain elasticity and flexibility, so that the filtering effect is better. And the pressure change and tiny deformation in the slope body can be better adapted, breakage or damage is avoided, and a certain water passing capacity can be kept even if part of the slope body is blocked. The method can be widely applied to the technical field of slope drainage.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of slope drainage, in particular to a blind water seepage pipe suitable for existing slope. BACKGROUND

[0002] In existing fill slope and present situation excavation slope, groundwater usually relies on original drainage seepage slope to flow naturally. At present, the treatment of slope groundwater mostly adopts passive mode, that is, drainage ditch is set at the groundwater seepage mouth of slope foot to collect and discharge. However, with the seepage of groundwater, fine soil particles in the slope body will be taken away, thereby causing the destruction of slope body such as settlement and collapse, and causing a series of problems such as slope soil erosion.

[0003] Since the existing slope cannot be excavated to add drainage facilities, if a water seepage corridor that can be easily placed in the slope body is formed after the slope body is formed, the groundwater in the slope body is filtered, collected and concentrated and discharged, the loss of fine soil particles can be effectively solved, and the overall stability of the slope can be significantly enhanced. SUMMARY

[0004] In view of the problems in the prior art, the utility model provides a blind water seepage pipe suitable for existing slope.

[0005] In order to solve the above technical problems, the utility model solves the problems through the following technical schemes:

[0006] A blind water seepage pipe suitable for existing slope, comprising a support pipe and a filter system arranged in the support pipe, a drainage hole is formed in the side wall of the support pipe, the filter system comprises a filter pipe arranged in the support pipe and arranged in the same direction as the support pipe, the filter pipe is open at both ends and its outer wall abuts against the inner wall of the support pipe; the filter pipe is woven by plastic hoses, and the plastic hoses form gaps for water discharge.

[0007] In the existing slope, when groundwater seeps into the blind water seepage pipe, water first enters the pipe through the drainage hole in the side wall of the support pipe. The support pipe is made of hard material and plays a supporting and protecting role for the internal filter system. After the slope body is formed, the support pipe can be pushed into the slope body by mechanical force.

[0008] Compared with the plastic pipe with holes arranged in the support pipe, the woven filter pipe has more complex and fine gap structure, can more effectively intercept fine soil particles and other impurities in the groundwater, and improve the filtering precision and drainage quality.

[0009] Secondly, the woven structure has a certain elasticity and flexibility, which can better adapt to the pressure change and slight deformation inside the slope body, avoiding rupture or damage. The plastic pipe of the fixed hole is relatively brittle and easy to be damaged under pressure. The gap formed by weaving is not easy to be completely blocked by impurities, and even if it is partially blocked, it can still maintain a certain water passing capacity. Once the holes on the plastic pipe are blocked by larger impurities, the water passing effect will be seriously affected.

[0010] As a preferred, the outer wall of the filter pipe is wrapped with geotextile.

[0011] When the water enters through the drainage hole of the support pipe side wall, it will first contact the geotextile wrapped on the outer wall of the filter pipe. The geotextile has small pores and can preliminarily intercept larger impurity particles in the water. The water filtered by the geotextile is then introduced into the filter pipe formed by the woven plastic hose, and further filtered through the gap between the plastic hoses. The two work together to achieve a more refined filtering effect. Secondly, the geotextile can reduce the direct impact and wear of impurities on the filter pipe, reduce the risk of damage to the filter pipe, and thus prolong its service life.

[0012] As a preferred, one end of the support pipe is fixed with a sealing plate for closing the support pipe, and a tapered pile is fixed on the side wall away from the support pipe.

[0013] In use, the end with the tapered pile is inserted towards the inside of the slope body. The design of the tapered pile helps to reduce the resistance during insertion, making it easier for the support pipe to enter the slope body. The sealing plate is used to close one end of the support pipe to prevent water from flowing out of this end, ensuring that water flows out of the slope body through the blind water permeation pipe.

[0014] As a preferred, it further includes a fan-shaped limiting piece, an arc-shaped side wall of the fan-shaped limiting piece is fixed with a support column, a side wall close to the opening of the support pipe is provided with a mounting hole for the support column to pass through, and after the support column is inserted into the mounting hole, the outer wall of the fan-shaped limiting piece is attached to the inner wall of the support pipe, and the filter pipe abuts against the side wall of the fan-shaped limiting piece.

[0015] During installation, the support column of the fan-shaped limiting piece is inserted through the mounting hole of the side wall of the support pipe, so that the fan-shaped limiting piece is located inside the support pipe. The support column continues to be inserted into the soil, thereby fixing the fan-shaped limiting piece. The outer wall of the fan-shaped limiting piece is attached to the inner wall of the support pipe, limiting the movement of the filter pipe inside the support pipe. It can effectively prevent the filter pipe from moving inside the slope body due to factors such as water flow impact and slope pressure, ensuring that the filter pipe is always in the correct position, ensuring the stability of the filtering effect, making the structure of the entire blind water permeation pipe more stable, and improving its reliability in the slope body.

[0016] As a preferred, the mounting hole is provided with two, when the support pipe is placed horizontally on the ground, the two mounting holes are provided on the side wall on the axis parallel to the ground; the arc value of the fan-shaped limiting piece is less than 45°.

[0017] When the support pipe is placed horizontally, two mounting holes are located on the axis of its side wall parallel to the ground, and the support column of the sector limiting piece is inserted into the mounting hole. The position of the mounting hole is special, and during use, the support column will not fall due to gravity. At the same time, since the curvature of the sector limiting piece is less than 45°, the sector limiting piece does not hinder the water flow passage at the bottom of the support pipe, and water can flow out smoothly, ensuring the efficiency and effect of drainage.

[0018] As a preferred embodiment, the filter pipe is woven from two plastic hoses with different diameters.

[0019] In the filter pipe, two plastic hoses with different diameters are woven. The large-diameter plastic hose generally has stronger strength and can withstand greater external pressure and water flow impact. When groundwater passes through, the large-diameter hose provides the main support structure, and the small-diameter hose fills the gap between the large-diameter hose, together forming filter pores. The high-strength characteristics of the large-diameter hose provide a solid framework for the entire filter pipe, enhancing its overall structural strength and making it less prone to deformation and damage in the complex environment inside the slope.

[0020] As a preferred embodiment, the support pipe is uniformly provided with drainage holes in the 120° arc surface range at the top along the axial direction.

[0021] Such a design allows groundwater to mainly enter from a specific area at the top of the support pipe. Since no drainage holes are provided at the bottom, water is prevented from flowing out from the bottom and re-entering the slope, ensuring that water can be discharged from the slope after passing through the filter system according to the designed path. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the water infiltration blind pipe in Example 1.

[0023] Figure 2 It is a schematic diagram of the structure of the support pipe in Example 1.

[0024] Figure 3 It is a schematic diagram of the structure of the sector limiting piece in Example 1.

[0025] Figure 4 It is a schematic diagram of the structure of the filter pipe in Example 1.

[0026] The parts referred to by the respective reference numerals in the drawings are as follows:

[0027] 110, support pipe; 1101, drainage hole; 1102, mounting hole; 120, filter pipe; 130, geotextile; 1401, sealing plate; 1402, tapered pile; 1501, sector limiting piece; 1502, support column. DETAILED DESCRIPTION

[0028] For further understanding of the content of the present application, the present application is described in detail in conjunction with the drawings and examples. It should be understood that the examples are merely to explain the present application and not to limit it.

[0029] Example 1

[0030] As Figures 1-4 shown, the present embodiment discloses a water seepage blind pipe suitable for existing slope, mainly composed of the following parts:

[0031] Support pipe 110: made of hard material, in order to ensure the strength, the present embodiment uses reinforced concrete as the material to manufacture support pipe 110, one end of support pipe 110 is fixed with sealing plate 1401 for closing support pipe 110, taper pile 1402 is fixed on the side wall away from support pipe 110 of sealing plate 1401. Drainage hole 1101 is uniformly opened in the axial direction within the range of 120° arc surface at the top of support pipe 110, two mounting holes 1102 are opened on the side wall close to the opening, when support pipe 110 is placed horizontally on the ground, two mounting holes 1102 are opened on the axis parallel to the ground on the side wall thereof.

[0032] Filtering system: arranged inside support pipe 110, including filtering pipe 120 which is same direction with support pipe 110 and open at both ends, the outer wall of filtering pipe 120 abuts against the inner wall of support pipe 110. Filtering pipe 120 is woven by plastic hose, the specific weaving method is common technology, which is not described here; the plastic hoses form gaps for water discharge. Geotextile 130 is wrapped on the outer wall of filtering pipe 120, and filtering pipe 120 abuts against the side wall of fan-shaped limiting sheet 1501.

[0033] Fan-shaped limiting sheet 1501: arc-shaped side wall is fixed with support column 1502, support column 1502 can be inserted into mounting hole 1102 of support pipe 110 side wall, the outer wall of fan-shaped limiting sheet 1501 is attached to the inner wall of support pipe 110, and the radian value of fan-shaped limiting sheet 1501 is less than 45°.

[0034] The specific installation and use process is as follows:

[0035] First, the end of support pipe 110 with taper pile 1402 is directed towards the inside of slope body, and it is pushed into the slope body by mechanical force. During the pushing process, taper pile 1402 helps to reduce the resistance during insertion, so that support pipe 110 can more easily enter the slope body, sealing plate 1401 closes one end of support pipe 110 to prevent water from flowing out without filtering from this end.

[0036] Then, the filter tube 120 wrapped with the geotextile 130 is placed inside the support tube 110, with its outer wall abutting against the inner wall of the support tube 110. Then, the support column 1502 of the sector-shaped limiting sheet 1501 is aligned with the mounting hole 1102 on the side wall of the support tube 110 along the axis parallel to the ground, and the support column 1502 is inserted into the mounting hole 1102 and then into the soil layer where the slope body is located, so that the sector-shaped limiting sheet 1501 is fixed inside the support tube 110, and at this time, the outer wall of the sector-shaped limiting sheet 1501 is attached to the inner wall of the support tube 110, for limiting the movement of the filter tube 120.

[0037] In the existing slope, when the underground water seeps, the water mainly enters from the drainage holes 1101 in the range of the 120° arc surface at the top of the support tube 110, and the bottom part without the drainage holes 1101 avoids the backflow of water. The water entering the support tube 110 first contacts the geotextile 130 wrapped on the outer wall of the filter tube 120, and the geotextile 130 preliminarily intercepts larger impurity particles, and the preliminarily filtered water enters the filter tube 120. The filter tube 120 woven from plastic hoses further finely filters and intercepts small soil particles and other impurities.

[0038] The geotextile 130 and the woven filter tube 120 work together to improve the filtering precision and effectively intercept impurities. The design of the hard material of the support tube 110, the sealing plate 1401 and the conical pile 1402 enhances the stability of the whole in the slope body.

[0039] The elasticity and flexibility of the woven filter tube 120 adapt to the pressure change inside the slope body, reducing the risk of damage. And its complex and fine gaps and the characteristics of not being easy to block ensure the water passing capacity and improve the drainage efficiency.

[0040] Embodiment 2

[0041] Compared with Embodiment 1, the difference is that the filter tube in this embodiment is woven from two kinds of plastic hoses with different diameters.

[0042] The specific weaving process is as follows: first, a part of plastic hoses with larger diameter are arranged in parallel, and then a part of plastic hoses with smaller diameter are simply interlaced between the part of plastic hoses with larger diameter. Then, another part of plastic hoses with larger diameter is added, and the above weaving steps are repeated, and the mixed weaving structure is formed by alternating.

[0043] In summary, the above is only a preferred embodiment of the present embodiment, and any equivalent changes and modifications made within the scope of the patent application of the present embodiment shall be covered by the scope of the patent of the present embodiment.

Claims

1. A water infiltration blind pipe suitable for existing slope, comprising a support pipe (110) and a filter system arranged inside the support pipe (110), a drainage hole (1101) is arranged on the side wall of the support pipe (110), characterized in that: The filter system comprises a filter pipe (120) arranged inside the support pipe (110) and coaxial with the support pipe (110), the filter pipe (120) is open at both ends and its outer wall is abutted against the inner wall of the support pipe (110); the filter pipe (120) is woven by plastic hoses, and the plastic hoses form gaps for water discharge.

2. The water infiltration blind pipe suitable for existing slope according to claim 1, characterized in that: The filter pipe (120) is wrapped with geotextile (130).

3. The water infiltration blind pipe suitable for existing slope according to claim 1, characterized in that: One end of the support pipe (110) is fixed with a sealing plate (1401) for closing the support pipe (110), and the sealing plate (1401) is fixed with a tapered pile (1402) on the side wall away from the support pipe (110).

4. A water-permeable blind drain suitable for an existing slope according to claim 3, characterized in that: Further comprising a fan-shaped limiting sheet (1501), the arc-shaped side wall of the fan-shaped limiting sheet (1501) is fixed with a support column (1502), the side wall of the support pipe (110) close to the opening is provided with a mounting hole (1102) for the support column (1502) to pass through, after the support column (1502) is inserted into the mounting hole (1102), the outer wall of the fan-shaped limiting sheet (1501) is attached to the inner wall of the support pipe (110), and the filter pipe (120) is abutted against the side wall of the fan-shaped limiting sheet (1501).

5. A water-permeable blind drain suitable for an existing slope according to claim 4, characterized in that: The mounting hole (1102) is provided with two, when the support pipe (110) is horizontally placed on the ground, the two mounting holes (1102) are arranged on the side wall on the axis parallel to the ground; the arc value of the fan-shaped limiting sheet (1501) is less than 45°.

6. The water infiltration blind pipe suitable for existing slope according to claim 1, characterized in that: The filter pipe (120) is woven by two plastic hoses with different diameters.

7. The water infiltration blind pipe suitable for existing slope according to claim 1, characterized in that: The support pipe (110) is uniformly provided with drainage holes (1101) in the axial direction within the range of 120° arc surface at the top.

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