CN213539046U - Retaining wall reverse filtering drainage structure - Google Patents
Retaining wall reverse filtering drainage structure Download PDFInfo
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- CN213539046U CN213539046U CN202021542984.3U CN202021542984U CN213539046U CN 213539046 U CN213539046 U CN 213539046U CN 202021542984 U CN202021542984 U CN 202021542984U CN 213539046 U CN213539046 U CN 213539046U
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Abstract
The utility model discloses a retaining wall anti-drainage structures that strains, including the retaining wall that is used for supporting the soil body side slope with pack the anti-well of straining that is arranged in filtering out the water in the peripheral soil body of water permeability material, anti-well of straining is located in the soil body of the wall back one side of retaining wall, pre-buried in the wall body of retaining wall has the water that is used for facing the wall of the wall back one side of retaining wall empty one side exhaust outlet wash pipe, the water permeability material of packing in the anti-well forms the water column that permeates water, the first end and the anti-well intercommunication of straining of wash pipe, the second end of wash pipe runs through the retaining wall setting along the thickness direction of retaining wall so that the water in the anti-well of straining passes through the wall face empty one side of wash pipe discharge to retaining wall. The utility model discloses a retaining wall reversed filtering drainage structure, the construction process is simple reasonable.
Description
Technical Field
The utility model relates to a keep off native drainage technology field, in particular, relate to a barricade drainage structures of straining instead.
Background
The commonly used retaining wall reverse filtering structure is mostly made of gravel materials with certain thickness laid on the wall back, is called as a reverse filtering layer, and drains accumulated water behind the wall through the drainage holes. The method is suitable for the grouted and tiled rubble retaining wall, but the retaining wall mostly adopts a concrete cast-in-place construction process at present, and the construction difficulty is higher if the inverted filter layer design is still adopted on the basis.
At present, the arrangement of a retaining wall back inverted filter layer mainly comprises two construction methods: one method is that a template is installed behind a wall, then the retaining wall construction is carried out, the template behind the wall is removed in a drawing mode, and then the material of a reverse filter layer such as sand gravel is poured in, and the material is vibrated and compacted; the other method is to pack sand gravel or sand-free concrete and other reverse filter materials behind the wall, erect a template and construct the retaining wall. There are the following disadvantages: the construction process is complicated by adopting the first method, the construction quality such as compactness, filling degree and the like of the sand gravel is difficult to ensure because the sand gravel reverse filter layer is poured into a narrow space after the construction of the retaining wall is finished; the second method consumes much labor and has high cost, the construction quality is better under the condition that the excavation slope is smoother, but the excavation surface is often rugged due to the complex characteristic of rock-soil mass, the size of the materials such as soil engineering bags with the inverse filtering function, sand-free concrete plates and the like is generally fixed, and the flat surface is difficult to form on one side of the inverse filtering layer close to the retaining wall, so the stress of the inverse filtering layer between the retaining wall and the wall back slope is easily uneven. In a word, the two methods are adopted, so that the construction process is complex and the construction speed is low.
SUMMERY OF THE UTILITY MODEL
The utility model provides a retaining wall reversed filtering drainage structure to solve the unreasonable technical problem of the construction process of the existing retaining wall reversed filtering structure.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a barricade anti-drainage structures that strains, including the retaining wall that is used for supporting the soil body side slope with pack the anti-well that strains that is arranged in filtering out the water in the peripheral soil body of water permeability material, anti-well is located in the soil body of the wall back one side of retaining wall, pre-buried in the wall body of retaining wall has the water that is used for the wall back one side of retaining wall to face empty one side exhaust outlet towards the wall, the water permeability material of packing in the anti-well forms the water column that permeates water, the first end and the anti-well intercommunication of water column, the second end of water column runs through the retaining wall setting along the thickness direction of retaining wall so that the water in the anti-well of straining passes through the wall face that the water column discharges to the retaining wall and faces.
Further, the drain pipe is arranged close to the base of the retaining wall, and the drain pipe is obliquely and downwards arranged along the direction of the side, facing the empty side, of the wall back of the retaining wall.
Furthermore, the horizontal plane of the drain pipe and the base of the retaining wall forms an included angle alpha, and the value of alpha is 1-30 degrees.
Furthermore, a filter screen for filtering is arranged on the end surface of the first end of the water drain pipe.
Furthermore, the number of the reverse filter wells is multiple, the multiple reverse filter wells are arranged at intervals along the length direction of the retaining wall, the number of the water drain pipes is multiple, and the water drain pipes and the reverse filter wells are arranged in a one-to-one correspondence manner; or the two adjacent anti-filtration wells are communicated with each other through the communicating pipe at the bottom and share one water drain pipe, the first end of the water drain pipe is communicated to one of the anti-filtration wells and communicated to the other anti-filtration well through the communicating pipe, or the first end of the water drain pipe is communicated to the communicating pipe and communicated with the two anti-filtration wells simultaneously through the communicating pipe.
Furthermore, the number of the reverse filter wells is multiple, the multiple reverse filter wells are arranged at intervals along the width direction of the retaining wall, the number of the water drain pipes is multiple, and the water drain pipes and the reverse filter wells are arranged in a one-to-one correspondence manner; or the two adjacent anti-filtration wells are communicated with each other through the communicating pipe at the bottom and share one water drain pipe, the first end of the water drain pipe is communicated to one of the anti-filtration wells and communicated to the other anti-filtration well through the communicating pipe, or the first end of the water drain pipe is communicated to the communicating pipe and communicated with the two anti-filtration wells simultaneously through the communicating pipe.
Further, the reverse filter well is vertically arranged.
Furthermore, a reinforcing mesh is arranged inside the reverse filter well to restrain the permeable material or fix the surrounding soil body.
Further, the reverse filter well is arranged close to the retaining wall.
Furthermore, the retaining wall reverse filtering drainage structure also comprises rammed clay arranged at the bottom end of the reverse filtering well.
The utility model discloses following beneficial effect has:
the utility model discloses a retaining wall reversed filtration drainage structures, including retaining wall, reversed filtration well, wash-out pipe and the ventilative post of filling the water permeability material formation in the reversed filtration well. The independent reverse filter wells are arranged in the soil body on one side of the wall back of the retaining wall, so that the interference of the wall back of the retaining wall when the water permeable material is filled in the reverse filter wells to form a water permeable column is avoided, the restriction of a narrow space between the working surface of the wall back of the retaining wall and the soil body is avoided, the reverse filter wells are conveniently constructed in the soil body after the construction of the retaining wall on the slope surface of the soil body is finished in the construction process, the water permeable material is further filled, and the construction process is simple and reasonable; through setting up the outlet conduit, be convenient for in time discharge the moisture content in the soil body to the outside of retaining wall, be favorable to the soil body of dredging the retaining wall back, prevent that the ground from infiltrating downwards, prevent that the soil body ponding of retaining wall back from forming hydrostatic pressure.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
FIG. 1 is a schematic structural view of a retaining wall reverse filtering drainage structure according to a preferred embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a retaining wall reverse filtering drainage structure according to a preferred embodiment of the present invention.
Illustration of the drawings:
10. a retaining wall reverse filtering drainage structure; 11. a retaining wall; 12. a reverse filter well; 13. a drain pipe; 14. a water permeable column; 15. a filter screen; 16. the clay is tamped.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered below.
FIG. 1 is a schematic structural view of a retaining wall reverse filtering drainage structure according to a preferred embodiment of the present invention; fig. 2 is a schematic cross-sectional view of a retaining wall reverse filtering drainage structure according to a preferred embodiment of the present invention.
As shown in fig. 1 and 2, the retaining wall reverse filtering drainage structure 100 of the present embodiment includes a retaining wall 11 for supporting a soil slope and a reverse filtering well 12 filled with a water permeable material and used for filtering out water in a peripheral soil body, the reverse filtering well 12 is disposed in the soil body on the wall back side of the retaining wall 11, a drainage pipe 13 for draining the water on the wall back side of the retaining wall 11 toward the wall face empty side is pre-embedded in the wall body of the retaining wall 11, the water permeable material filled in the reverse filtering well 12 forms a permeable column 14, a first end of the drainage pipe 13 is communicated with the reverse filtering well 12, and a second end of the drainage pipe 13 penetrates through the retaining wall 11 in the thickness direction of the retaining wall 11 and is disposed so that the water in the reverse filtering well 12 is drained to the wall face empty side of the retaining wall 11 through the drainage pipe 13.
The utility model discloses a retaining wall reversed filtering drainage structure 100, including retaining wall 11, reversed filtering well 12, wash-out pipe 13 and pack the permeable column 14 that the permeable material in the reversed filtering well 12 formed. The independent reverse filtering well 12 is arranged in the soil body on one side of the wall back of the retaining wall 11, so that the interference of the wall back of the retaining wall 11 when the reverse filtering well 12 is filled with a water permeable material to form a permeable column 14 is avoided, the restriction of a narrow space between the working surface of the wall back of the retaining wall 11 and the soil body is avoided, the reverse filtering well 12 is conveniently constructed in the soil body after the construction of the retaining wall 11 on the slope surface of the soil body is completed in the construction process, the water permeable material is further filled, and the construction process is simple and reasonable; through setting up wash-out pipe 13, be convenient for in time discharge the moisture content in the soil body to the outside of retaining wall 11, be favorable to the soil body of dredging retaining wall 11 back, prevent that the ground is infiltration downwards, prevent that the soil body ponding in retaining wall 11 back from forming hydrostatic pressure.
It is understood that in the present embodiment, the retaining wall 11 is formed by a concrete cast-in-place construction process, and the retaining wall 11 may be a gravity retaining wall 11, or may also be an anchor rod, an anchor plate retaining wall 11, or a reinforced retaining wall 11, which is not limited in the present embodiment.
It is understood that, in the cross section of the retaining wall 11, a portion in direct contact with the supported soil is referred to as a wall back, and a portion facing empty opposite to the wall back is referred to as a wall surface; the portion in direct contact with the foundation is called the basement, and the top surface of the wall opposite the basement is called the wall top. Optionally, the wall backs of the retaining walls 11 are arranged obliquely towards the soil body along the direction from the base to the wall top, and the wall surfaces of the retaining walls 11 are arranged vertically or obliquely towards the soil body along the direction from the base to the wall top.
Alternatively, in this embodiment, the water permeable material may be a material of an anti-reflective layer such as sand gravel or sand-free concrete; in order to protect the water permeable column 14 formed by the water permeable material in the reverse filtration well 12, backfill clay is filled in the reverse filtration well 12 and is arranged above the water permeable column 14; the pipe diameter of the drain pipe 13 needs to be set by actual conditions.
Further, in order to facilitate the complete discharge of the water permeating into the inverted filter well 12 and avoid the damage of the second end of the water drain pipe 13, the first end of the water drain pipe 13 is communicated with the bottom of the inverted filter well 12, and the second end of the water drain pipe 13 extends outwards along the width direction of the retaining wall 11 and is arranged flush with the wall surface of the retaining wall 11.
Further, the drain pipes 13 are disposed close to the base of the retaining wall 11, and the drain pipes 13 are disposed in an upward inclined manner along the wall surface of the retaining wall 11 toward the wall back, and form an angle α with the horizontal plane where the base of the retaining wall 11 is located. The drainage pipe 13 is arranged along the wall surface of the retaining wall 11 in an upward inclined manner towards the wall back, so that the water permeating into the reverse filtering well 12 is quickly drained to the outer side of the wall surface of the retaining wall 11 through the drainage pipe 13 by self gravity.
Preferably, the number of the drain pipes 13 is plural, and the drain pipes are arranged at intervals along the height direction of the inverted filter well 12.
Further, in order to facilitate the drainage of the water in the soil to the bottom surface of the side facing the void of the retaining wall 11, the drain pipe 13 is disposed near the base of the retaining wall 11, and the drain pipe 13 is disposed along the wall back side of the retaining wall 11 so as to be inclined downward toward the wall facing the void.
Further, according to the nature of the soil body, in order to facilitate rapid drainage of water in the soil body, the range of α is 1 ° to 30 °. It is understood that α may be 1 °, 15 ° or 30 ° or other angles.
Further, a filter screen 15 for filtering is provided on an end surface of the first end of the drain pipe 13. It is understood that, in order to prevent the drain pipe 13 from being clogged, a filter screen 15 for filtering is provided on an end surface of the first end of the drain pipe 13, and the filter screen 15 is located between the drain pipe 13 and the water permeable column 14.
Furthermore, in order to obtain materials conveniently, the filter screen 15 is made of geotextile, and the water drain pipe 13 is a pvc pipe.
Furthermore, the number of the reverse filter wells 12 is multiple, the multiple reverse filter wells 12 are arranged at intervals along the length direction of the retaining wall 11, the number of the water drain pipes 13 is multiple, and the water drain pipes 13 and the reverse filter wells 12 are arranged in a one-to-one correspondence manner; or, two adjacent inverted filter wells 12 are communicated with each other through a communicating pipe at the bottom and share one drain pipe 13, the first end of the drain pipe 13 is communicated to one of the inverted filter wells 12 and communicated to the other inverted filter well 12 through the communicating pipe, or the first end of the drain pipe 13 is communicated to the communicating pipe and communicated with the two inverted filter wells 12 through the communicating pipe. Specifically, a plurality of reverse filter wells 12 are arranged at intervals along the length direction of the retaining wall 11, a plurality of drain pipes 13 are arranged, and the drain pipes 13 and the reverse filter wells 12 are arranged in a one-to-one correspondence manner.
Furthermore, the number of the reverse filter wells 12 is multiple, the multiple reverse filter wells 12 are arranged at intervals along the width direction of the retaining wall 11, the number of the water drain pipes 13 is multiple, and the water drain pipes 13 and the reverse filter wells 12 are arranged in a one-to-one correspondence manner; or the two adjacent inverted filter wells 12 are communicated with each other through a communicating pipe at the bottom and share one drain pipe 13, the first end of the drain pipe 13 is communicated to one of the inverted filter wells 12 and communicated to the other inverted filter well 12 through the communicating pipe, or the first end of the drain pipe 13 is communicated to the communicating pipe and simultaneously communicated with the two inverted filter wells 12 through the communicating pipe. Specifically, a plurality of backwash wells 12 are arranged at intervals in the width direction of the retaining wall 11, and the bottoms of the plurality of backwash wells 12 communicate with each other and share one drain pipe 13.
Further, in order to facilitate drilling and filling of the reverse filtering well 12 with a water permeable material, the reverse filtering well 12 is vertically arranged, the top of the reverse filtering well 12 is spaced from the wall back of the top of the retaining wall 11 by L meters, and the bottom of the reverse filtering well 12 extends downward to be communicated with the first end of the water drain pipe 13. Alternatively, the reverse filter well 12 may be constructed by rotary drilling with a long spiral drilling machine, and the aperture of the reverse filter well 12 may be 600 mm.
More preferably, L ranges between 0 and 1 meter. It will be appreciated that in order to ensure the convenience of drilling the reverse filter well 12, the top of the reverse filter well 12 is spaced 0.1 meter from the back of the wall at the top of the retaining wall 11.
It will be appreciated that in this embodiment the reverse filter well 12 is located adjacent the retaining wall 11.
Further, a steel bar net is arranged inside the reverse filtering well 12 to restrain the permeable material or fix the surrounding soil.
Further, in order to facilitate the discharge of water in the soil, the number of the reverse filter wells 12 is plural, and the plural reverse filter wells 12 are uniformly arranged at intervals in the longitudinal direction of the retaining wall 11.
Further, two adjacent inverted filter wells 12 are arranged at a distance of 4 meters. It is understood that in other embodiments, the distance between two adjacent anti-filtering wells 12 may be 3 meters, or may be other distance values such as 5 meters.
Further, in order to ensure the strength of the force of the reverse filtration well 12, the retaining wall reverse filtration drainage structure further comprises rammed clay 16 arranged at the bottom end of the reverse filtration well 12.
The utility model discloses a retaining wall reversed filtration drainage structure 100 work progress includes:
when the retaining wall is cast, water drain pipes 13 are embedded in the bottom of the retaining wall, the water drain pipes 13 are arranged at intervals along the width direction of the retaining wall 11, and the first ends of the water drain pipes 13 protrude out of the wall back of the retaining wall 11 to be communicated with the bottom of the reverse filter well 12 after the reverse filter well 12 is constructed;
after the whole retaining wall is constructed, constructing the reverse filtering well 12, wherein the position of the reverse filtering well 12 corresponds to the position of the water drain pipe 13, so that accumulated water collected by the reverse filtering well 12 can be conveniently drained from the water drain pipe 13;
the geotechnical cloth is buried in the end of one side of the drain pipe 13 close to the wall back, so that silt in water is filtered, and the drain pipe 13 is prevented from being blocked.
Specifically, the reversed filter well 12 can be constructed by adopting a long spiral drilling machine to dig a hole in a rotary mode, a water permeable material is filled into the hole after the hole is formed, the hole mouth is backfilled with clay and is sealed, namely the construction is completed, and a water intercepting ditch is dug on the surface of the soil body on the side, far away from the retaining wall 11, of the reversed filter well 12.
The utility model discloses a retaining wall reversed filtering drainage structure 100 beneficial effect as follows:
the construction difficulty is low: the reverse filtering well 12 can be constructed after the construction of the retaining wall is finished, and is not limited by other procedures and working surfaces; the cost is low: the construction speed is high, the labor consumption is low, and the material consumption is low; the experiment and the simulation prove that the method is feasible.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A retaining wall reverse filtering drainage structure, which is characterized in that,
comprises a retaining wall (11) for supporting a soil body slope and a reverse filter well (12) filled with water-permeable materials and used for filtering water in peripheral soil bodies, wherein the reverse filter well (12) is arranged in the soil body on one side of the wall back of the retaining wall (11),
a drain pipe (13) for discharging the water body on one side of the wall back of the retaining wall (11) towards the empty side of the wall is embedded in the wall body of the retaining wall (11),
the permeable material who fills in anti-well (12) forms water column (14), the first end of outlet pipe (13) with anti-well (12) intercommunication of straining, the second end of outlet pipe (13) is followed the thickness direction of retaining wall (11) is run through retaining wall (11) set up so that water in anti-well (12) of straining passes through outlet pipe (13) discharge extremely the wall of retaining wall (11) faces empty one side.
2. The retaining wall reverse filtering drainage structure according to claim 1,
the drain pipe (13) is arranged close to the base of the retaining wall (11),
the drain pipes (13) are arranged along the direction of the wall back side of the retaining wall (11) towards the wall facing empty side in a downward inclined mode.
3. The retaining wall reverse filtering drainage structure according to claim 2,
the horizontal plane where the drain pipe (13) and the base of the retaining wall (11) are located forms an alpha included angle, and the value of alpha is 1-30 degrees.
4. The retaining wall reverse filtering drainage structure according to claim 2,
and a filter screen (15) for filtering is arranged on the end surface of the first end of the water drain pipe (13).
5. The retaining wall reverse filtering drainage structure according to claim 2,
the number of the reverse filtering wells (12) is multiple, the reverse filtering wells (12) are arranged at intervals along the length direction of the retaining wall (11),
the number of the drain pipes (13) is multiple, and the drain pipes (13) and the inverted filter wells (12) are arranged in a one-to-one correspondence manner; or the adjacent two inverted filter wells (12) are communicated with each other through a communicating pipe at the bottom and share one drain pipe (13), the first end of the drain pipe (13) is communicated to one of the inverted filter wells (12) and communicated to the other inverted filter well (12) through the communicating pipe, or the first end of the drain pipe (13) is communicated to the communicating pipe and simultaneously communicated with the two inverted filter wells (12) through the communicating pipe.
6. The retaining wall reverse filtering drainage structure according to claim 2,
the number of the reverse filtering wells (12) is multiple, the reverse filtering wells (12) are arranged at intervals along the width direction of the retaining wall (11),
the number of the drain pipes (13) is multiple, and the drain pipes (13) and the inverted filter wells (12) are arranged in a one-to-one correspondence manner; or the two adjacent inverted filter wells (12) are communicated with each other through a communicating pipe at the bottom and share one water drain pipe (13), the first end of the water drain pipe (13) is communicated to one of the inverted filter wells (12) and communicated to the other inverted filter well (12) through the communicating pipe, or the first end of the water drain pipe (13) is communicated to the communicating pipe and simultaneously communicated with the two inverted filter wells (12) through the communicating pipe.
7. The retaining wall reverse filtering drainage structure according to claim 1,
the inverted filter well (12) is arranged vertically.
8. The retaining wall reverse filtering drainage structure according to claim 1,
and a reinforcing mesh is arranged in the reverse filtering well (12) to restrain the permeable material or fix the peripheral soil body.
9. The retaining wall reverse filtering drainage structure according to claim 1,
the reverse filtering well (12) is arranged close to the retaining wall (11).
10. The retaining wall reverse filtering drainage structure according to claim 1,
the retaining wall reverse filtering drainage structure further comprises rammed clay (16) arranged at the bottom end of the reverse filtering well (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021542984.3U CN213539046U (en) | 2020-07-29 | 2020-07-29 | Retaining wall reverse filtering drainage structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021542984.3U CN213539046U (en) | 2020-07-29 | 2020-07-29 | Retaining wall reverse filtering drainage structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213539046U true CN213539046U (en) | 2021-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021542984.3U Active CN213539046U (en) | 2020-07-29 | 2020-07-29 | Retaining wall reverse filtering drainage structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213539046U (en) |
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2020
- 2020-07-29 CN CN202021542984.3U patent/CN213539046U/en active Active
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