Supporting and drainage integrated seepage well

Abstract

The utility model discloses a seepage well integrating supporting and drainage. The seepage well comprises a seepage well body arranged on a side slope. Each seepage well is of a rectangular structure, and the multiple seepage wells are linearly arranged and connected into a whole; a water inlet hole is formed in one side, close to the mountain, of the seepage well; an anti-seepage geomembrane and an HDPE drainage plate are sequentially arranged on the side, close to the mountain, of the seepage well from inside to outside. According to the seepage well, the two functions of supporting and water drainage can be achieved, the seepage wells arranged in the straight line shape are connected into a whole to protect a side slope, water can permeate the seepage well through the high-strength HDPE water drainage plates, and the strength of the seepage well can be improved through the HDPE water drainage plates.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage engineering, in particular to a seepage well integrating support and drainage. Background Art

[0002] As we all know, nine out of ten landslides are caused by water. It has become a consensus in landslide control to control water first. Effectively treating surface water and groundwater within the range of landslide influence can achieve twice the result with half the effort in stabilizing the landslide. At present, common interception and drainage measures include: interception drainage ditch, blind ditch, drainage tunnel and inclined drainage hole.

[0003] Disadvantages of intercepting drainage ditch and blind ditch:

[0004] It belongs to slope drainage, and the drainage impact range is limited. It is mostly aimed at surface water or upper stagnant water. When the blind ditch excavation depth exceeds 5m, the cost-effectiveness decreases due to the involvement of temporary stability support of the excavated slope.

[0005] Disadvantages of horizontal drilling (upward-angled drainage holes):

[0006] 1. In the strata with isolated rocks or rocks with a large difference in hardness and softness, the construction is difficult and it is impossible to drill into the predetermined position, resulting in poor drainage effect or no effect;

[0007] 2. The diameter of the drilled hole (drainage hole) is generally less than 150mm, which is easily blocked and ineffective, and the service life of the drainage hole is short;

[0008] 3. The drilling depth (length) is limited, generally less than 60m. Construction becomes difficult when it exceeds 60m. In particular, deep holes with a diameter greater than 150mm cannot be constructed at all;

[0009] 4. The drilled holes (drainage holes) are linear, with a small contact section with the aquifer, poor drainage effect, easy clogging, and short service life.

[0010] Disadvantages of drainage tunnels:

[0011] The construction is difficult, costly and time-consuming, especially in soil and weathered rock strata.

[0012] Due to the above-mentioned shortcomings of the existing methods for draining groundwater from slopes, it is currently difficult to achieve a drainage solution that is long-term effective, low-cost, and has relatively simple construction technology in the management of some large-scale accumulation landslides.

[0013] For example, a Chinese patent with the announcement number CN206800571U discloses a fly ash ceramsite rainwater infiltration well, which includes an infiltration well pipe, fly ash ceramsite, and an infiltration well filter. The infiltration well pipe is placed in the infiltration well hole, the fly ash ceramsite is filled in the upper part of the inner wall of the infiltration well pipe, and the infiltration well filter is arranged at the top of the infiltration well pipe. A steel cage is arranged in the pipe wall of the infiltration well pipe, and a plurality of water holes penetrating the pipe wall are reserved on the side wall of the infiltration well pipe. Harmful elements such as nitrogen and phosphorus in rainwater are adsorbed by fly ash to purify rainwater;

[0014] However, the existing infiltration wells used in the slope only have the function of water infiltration, which is a single function. Utility Model Content

[0015] The purpose of the utility model is to provide a seepage well integrating support and drainage to solve the problems raised in the above-mentioned background technology.

[0016] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0017] An infiltration well integrating support and drainage, comprising an infiltration well arranged on a slope;

[0018] The infiltration well is a rectangular structure, and a plurality of the infiltration wells are arranged in a line and connected as a whole;

[0019] The infiltration well is provided with a water inlet hole on one side close to the mountain;

[0020] The seepage well is provided with an anti-seepage geomembrane and a HDPE drainage board in sequence from the inside to the outside on the side close to the mountain.

[0021] Preferably, a gravel layer is provided at the bottom of the infiltration well.

[0022] Preferably, the infiltration well comprises a plurality of well pipes stacked up and down.

[0023] Preferably, an anchor rod is provided on the side of the infiltration well facing away from the mountain.

[0024] Preferably, the anchor rod extends obliquely downward.

[0025] Preferably, the anchor rod is hollow.

[0026] Preferably, an opening at one end of the anchor rod is connected to the inside of the seepage well, and the opening is opened or closed by the cooperation of the first sealing member and the first elastic member;

[0027] The other end of the anchor rod is provided with a plurality of water seepage holes, and the plurality of water seepage holes are opened or closed by the cooperation of the second sealing member and the second elastic member;

[0028] A drawstring is connected between the first sealing member and the second sealing member, and the elastic force of the first elastic member is greater than the elastic force of the second elastic member.

[0029] Preferably, the HDPE drainage board is wrapped with one or more layers of drainage polyester staple fiber needle-punched geotextile.

[0030] Compared with the prior art, the beneficial effects of the utility model are:

[0031] The seepage well of the utility model can realize two functions of support and drainage. The seepage wells arranged in a line are connected as a whole to realize the protection of the slope. The high-strength HDPE drainage board not only realizes water permeation into the seepage well, but also can improve the strength of the seepage well.

[0032] The infiltration well can use the protective wall to play the role of support and reinforcement, integrating water infiltration and water collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 It is a schematic diagram of the structure of the utility model;

[0035] Figure 2 It is a side view of the utility model in the first direction;

[0036] Figure 3 This is a side view of the utility model in the second direction;

[0037] Figure 4 This is a schematic diagram of the seepage well structure of the utility model;

[0038] Figure 5 This is a cross-sectional view of the anchor rod of the utility model.

[0039] The reference numerals in the figure are as follows:

[0040] 100, seepage well; 200, anti-seepage geomembrane; 300, HDPE drainage board;

[0041] 1. Well pipe; 11. Water inlet hole; 12. Gravel layer;

[0042] 4. Anchor rod; 41. First sealing member; 42. First elastic member; 43. Second sealing member; 44. Second elastic member; 45. Pull rope. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] Embodiment 1:

[0045] A seepage well that integrates support and drainage, such as Figure 1-3 As shown, it includes a seepage well 100, an anti-seepage geomembrane 200 and a HDPE drainage board 300;

[0046] The infiltration well 100 has a rectangular structure in horizontal cross section. The infiltration well 100 is vertically arranged at the upper part of the slope. A plurality of infiltration wells 100 are arranged in a line and fixedly connected together. The arrangement direction of the plurality of infiltration wells 100 may also be consistent with the trajectory of the mountain.

[0047] The seepage well 100 includes a plurality of well pipes 1 connected in sequence along the vertical direction. The height of the well pipes 1 has various specifications. The well pipes 1 can be cast with reinforced concrete on site or prefabricated. Two well pipes 1 at the same height of adjacent seepage wells 100 are fixedly connected together.

[0048] like Figure 1 , 3 As shown, water inlet holes 11 are uniformly opened along the length direction of the infiltration well 100 close to the mountain (each well pipe 1 has a water inlet hole 11), and at least one anti-seepage geomembrane 200 and at least one HDPE drainage board 300 are sequentially arranged on the side of a row of infiltration wells 100 close to the mountain from the inside to the outside. Figure 3 The anti-seepage geomembrane 200 and the HDPE drainage board 300 are only partially shown. The anti-seepage geomembrane 200 adopts HDPE anti-seepage geomembrane, and multiple HDPE drainage boards are interlocked to form a HDPE three-dimensional drainage box, and two layers of 300g / m drainage polyester staple fiber needle-punched geotextile are arranged on the outer surface of the HDPE three-dimensional drainage box;

[0049] Each well pipe 1 is provided with a corresponding anti-seepage geomembrane 200 and a HDPE drainage board 300 on one side close to the mountain, and the HDPE drainage board 300 improves the strength of the well pipe 1.

[0050] The bottom wall of the infiltration well 100 is poured with 200 mm thick C30 concrete, and 2-100 mm crushed stones and pebbles are backfilled on the C30 concrete to form a crushed stone layer 12.

[0051] Multiple infiltration wells 100 are arranged in a row and fixedly connected as one on the upper part of the slope to support the ecological structure of the slope, thereby achieving the purpose of slope ecological protection and management. Compared with independent infiltration wells 100, multiple infiltration wells 100 connected as one can ensure that the water inside the entire slope is evenly discharged, reducing the impact of local water accumulation on the stability of the slope. All infiltration wells 100 can be monitored and maintained as a whole to avoid local support failure caused by problems with a single infiltration well 100.

[0052] The anti-seepage geomembrane 200 , the HDPE drainage board 300 and the water inlet hole 11 cooperate to achieve water permeability from the slope to the inside of the infiltration well 100 .

[0053] Embodiment 2:

[0054] like Figure 4 , 5 As shown, all the contents of Example 1 are included. An anchor rod 4 extending obliquely downward is provided on the side of each well pipe 1 of the infiltration well 100 away from the mountain. Since the infiltration well 100 is arranged on the upper part of the slope, there is a landslide on the slope. When pressure is applied to a row of infiltration wells 100, the anchor rod 4 can improve the support for the infiltration well 100.

[0055] Since the multiple infiltration wells 100 are fixedly connected together, most of the water flowing downward from the upper part of the slope is blocked, so that there is less water in the lower part of the slope; usually herbaceous plants are planted on the slope to improve the soil consolidation effect, and the lack of water on the slope will affect the survival of the herbaceous plants.

[0056] Further, the anchor rod 4 is a hollow structure, with openings at both ends of the anchor rod 4, the first end opening of the anchor rod 4 is connected to the inside of the seepage well 100, a first sealing member 41 and a first elastic member 42 are arranged inside the anchor rod 4, and both ends of the first elastic member 42 are respectively connected to the first sealing member 41 and the inner wall of the anchor rod 4, and the elastic force of the first elastic member 42 pushes the first sealing member 41 to close the first end opening of the anchor rod 4 under normal conditions;

[0057] The second end opening of the anchor rod 4 faces the soil at the lower part of the slope. A second sealing member 43 and a second elastic member 44 are arranged inside the anchor rod 4. The two ends of the second elastic member 44 are respectively connected to the second sealing member 43 and the inner wall of the anchor rod 4. The elastic force of the second elastic member 44 pushes the second sealing member 43 to close the second end opening of the anchor rod 4 under normal conditions. The second end opening of the anchor rod 4 is a plurality of seepage holes to prevent soil from entering the interior of the anchor rod 4.

[0058] A drawstring 45 is connected between the first sealing member 41 and the second sealing member 43 , and the elastic force of the first elastic member 42 is greater than the elastic force of the second elastic member 44 .

[0059] During the rainy season, there is more water in the slope, the herbaceous plants at the bottom of the slope have more water to grow normally, and a large amount of rainwater is stored in the infiltration well 100;

[0060] The rainwater in the infiltration well 100 submerges the anchor rod 4 to a certain depth, and under the action of water pressure, the first sealing member 41 is pushed to open the first end opening of the anchor rod 4, so that the interior of the anchor rod 4 is filled with rainwater. At the same time, under the action of the second elastic member 44, the second sealing member 43 closes the second end opening of the anchor rod 4.

[0061] During the dry season, there is less moisture in the slope. Under the blocking effect of a row of infiltration wells 100, there is even less moisture in the lower part of the slope, and the water level of rainwater stored in the infiltration wells 100 drops. The drop in water pressure causes the first elastic member 42 to push the first sealing member 41 to close the first end opening of the anchor rod 4. At the same time, under the action of the pull rope 45, the second sealing member 43 is driven to open the second end opening of the anchor rod 4 and compress the second elastic member 44. The moisture in the anchor rod 4 is slowly released to the soil at the lower part of the slope through the second end opening (seepage hole), thereby providing moisture for the herbaceous plants at the lower part of the slope.

[0062] Furthermore, the anchor rod 4 can increase the supporting effect of the T-shaped structure.

[0063] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0064] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A seepage well integrating support and drainage, comprising a seepage well (100) arranged on a slope, characterized in that: The infiltration well (100) is a rectangular structure, and a plurality of the infiltration wells (100) are arranged in a line and connected as a whole; The infiltration well (100) is provided with a water inlet hole (11) on one side close to the mountain; The seepage well (100) is provided with an anti-seepage geomembrane (200) and a HDPE drainage board (300) in sequence from the inside to the outside on the side close to the mountain.

2. The infiltration well integrating support and drainage according to claim 1 is characterized in that: A gravel layer (12) is provided at the bottom of the infiltration well (100).

3. The infiltration well integrating support and drainage according to claim 1 is characterized in that: The infiltration well (100) comprises a plurality of well pipes (1) stacked up and down.

4. The infiltration well integrating support and drainage according to claim 1 is characterized in that: An anchor rod (4) is provided on the side of the infiltration well (100) facing away from the mountain.

5. The infiltration well integrating support and drainage according to claim 4 is characterized in that: The anchor rod (4) extends obliquely downward.

6. The infiltration well integrating support and drainage according to claim 4 is characterized in that: The anchor rod (4) is hollow.

7. The infiltration well integrating support and drainage according to claim 6 is characterized in that: An opening at one end of the anchor rod (4) is communicated with the inside of the seepage well (100), and the opening is opened or closed by the cooperation of a first sealing member (41) and a first elastic member (42); The other end of the anchor rod (4) is provided with a plurality of water seepage holes, and the plurality of water seepage holes are opened or closed by the cooperation of the second sealing member (43) and the second elastic member (44); A drawstring (45) is connected between the first sealing member (41) and the second sealing member (43), and the elastic force of the first elastic member (42) is greater than the elastic force of the second elastic member (44).

8. The infiltration well integrating support and drainage according to claim 1, characterized in that: The HDPE drainage board (300) is covered with one or more layers of drainage polyester staple fiber needle-punched geotextile.

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