CN212506392U - Construction structure of drainage behind barricade wall - Google Patents
Construction structure of drainage behind barricade wall Download PDFInfo
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- CN212506392U CN212506392U CN202020874056.0U CN202020874056U CN212506392U CN 212506392 U CN212506392 U CN 212506392U CN 202020874056 U CN202020874056 U CN 202020874056U CN 212506392 U CN212506392 U CN 212506392U
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Abstract
The utility model discloses a construction structures of drainage behind barricade wall, including two mutual disposition's barricade template and drain pipe, pour the concrete between two barricade templates, form the barricade, the drain pipe transversely nests in the barricade, and the water inlet end of drain pipe is worn out from the dorsal template of barricade wall, and the water inlet end parcel of drain pipe has the anti-geotechnological cloth that strains. The utility model discloses well water inlet of drain pipe stretches out from the barricade wall back of the body, is convenient for get rid of ponding behind the wall fast, eliminates the clay filler because of the expansion pressure that the water content increases the production, reduces the frost heaving pressure that seasonal frozen area packed, ensures the stability and the security of retaining wall.
Description
Technical Field
The utility model relates to a construction technical field, concretely relates to drainage's behind barricade wall construction structures.
Background
The roadbed is influenced by the action of natural factors for a long time, the physical and mechanical properties of the rock soil decay under the action of unfavorable hydrographic conditions, so that the roadbed generates diseases, and in order to ensure that the roadbed has enough strength and stability, roadbed protection, retaining and reinforcement are indispensable engineering measures.
The retaining wall is a wall structure for supporting roadbed filling or hillside soil body and preventing the filling or soil body from deforming and destabilizing. In a road fill side slope, in order to prevent the sliding of a roadbed side slope or the instability of a side slope soil body, and simultaneously shrink a slope toe, the occupied area and the removal are reduced, a retaining wall is often required to be arranged.
Whether the drainage treatment of retaining wall is proper or not directly influences the safety and the use effect of retaining wall. Therefore, the retaining wall should be provided with drainage facilities to reduce the water content in the filler behind the wall and prevent the surface water from seeping to form accumulated water behind the wall, so that the wall body is prevented from being subjected to extra hydrostatic pressure; eliminating the expansion pressure of the clay filler caused by the increase of water content; reduce the frost heaving pressure of the filler in seasonally frozen areas.
The conventional method of the water outlet is that after the retaining wall is poured to a certain height, a PVC drain pipe is pre-buried, then concrete is poured continuously, after a later-stage formwork removal, a pocket which is slightly larger than the water outlet and 5-10 cm long is made of reverse filter geotextile at the position of the water inlet of the retaining wall water outlet, sand is filled in the pocket to form a sand bag which is slightly larger than the water inlet of the water outlet, and the water inlet is blocked by the sand bag before the wall back is filled to form a reverse filter structure.
However, in actual construction, the retaining wall is in the construction process of pouring, because the restriction of template, the PVC drain pipe can't stretch out the wall back, the retaining wall back, the wall generally also has a less slope rate, the PVC pipe can't accomplish the fine parallel and level with the retaining wall surface, the PVC drain pipe also is blocked by both sides template in the work progress, after having pour the concrete, the outlet of retaining wall is wrapped by the concrete, need later stage to get through the manual work, the outlet after getting through, because the PVC pipe does not have the extension, when backfilling behind the later stage wall, also cause the water inlet to block up easily, influence the drainage effect behind the wall.
Disclosure of Invention
The to-be-solved technical problem of the utility model is, to the above-mentioned defect that prior art exists, provide a construction structures of drainage behind barricade wall, the water inlet of drain pipe stretches out from the barricade wall back of the body, is convenient for get rid of ponding behind the wall fast, eliminates the clay filler because of the expansion pressure that the water content increases the production, reduces the frost heaving pressure that seasonal frozen area packed, ensures the stability and the security of retaining wall.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:
the utility model provides a construction structures of drainage behind barricade wall, includes two mutual disposition's barricade template and drain pipe, has pour the concrete between two barricade templates, forms the barricade, and the drain pipe transversely nests in the barricade, and the water inlet end of drain pipe is worn out from the dorsal form of barricade wall, and the water inlet end parcel of drain pipe has the anti-geotechnological cloth that strains.
According to the technical scheme, the water inlet end of the drain pipe penetrates out of the template on the back side of the retaining wall and exceeds the template on the back side of the retaining wall by 10-15 cm.
According to the technical scheme, the two retaining wall templates are respectively the wall template and the wall back template, the wall template is the retaining wall template on the side of the retaining wall, the wall back template is the retaining wall template on the back side of the retaining wall, the wall template is provided with the drain hole and the rotary hole cover, the drain hole is in butt joint or sleeve joint with the water outlet of the drain pipe, and the rotary hole cover is arranged on the drain hole.
According to the technical scheme, the number of the drain pipes is multiple and the drain pipes are distributed in an equidistant array; the number of the water drainage holes in the wall surface template is consistent with that of the water drainage pipes, and the water drainage holes are distributed in a one-to-one correspondence mode.
According to the technical scheme, the distance between the adjacent drain pipes is 2-3 m, and the distance between the water outlet end of the drain pipe at the lowest end and the ground is 0.2-0.4 m.
According to the technical scheme, the drain pipe is a PVC drain pipe.
According to the technical scheme, the drain pipe is obliquely arranged in the retaining wall, and the water inlet end of the drain pipe is higher than the water outlet end of the drain pipe.
According to the technical scheme, the pipe diameter of the drain pipe is 8-10 cm.
The utility model discloses following beneficial effect has:
the water inlet of drain pipe stretches out from the barricade wall back of the body, is convenient for get rid of ponding behind the wall fast, eliminates the clay filler because of the expansion pressure that the water content increases the production, reduces the frost heaving pressure of seasonally freezing area filler, ensures the stability and the security of retaining wall to through the water inlet of the geotechnological cloth parcel drain pipe of anti-filter, form a holistic anti-filter structure with the water inlet.
Drawings
Fig. 1 is a schematic structural view of a construction structure for post-drainage of a retaining wall according to an embodiment of the present invention;
FIG. 2 is a view in the direction A of FIG. 1;
in the figure, 1-a drain pipe, 2-a retaining wall, 3-a reverse filtering geotextile, 4-a wall surface template, 5-a wall back template and 6-a rotary hole cover.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Referring to fig. 1-2, the utility model provides a pair of construction structures of drainage behind barricade wall in embodiment, including two mutual disposition's barricade template and drain pipe 1, pour the concrete between two barricade templates, form barricade 2, drain pipe 1 transversely nests in barricade 2, and the water inlet end of drain pipe 1 is worn out from the dorsal template of barricade wall, and the water inlet end parcel of drain pipe 1 has anti-geotechnological cloth 3 of straining.
Further, the water inlet end of the water discharge pipe 1 penetrates out of the template on the back side of the retaining wall and exceeds the template on the back side of the retaining wall by 10-15 cm.
Further, the two retaining wall templates are respectively a wall template 4 and a wall back template 5, the wall template 4 is a retaining wall template on the side of the retaining wall, the wall back template 5 is a retaining wall template on the back side of the retaining wall, a drain hole and a rotary hole cover 6 are arranged on the wall template 4, the drain hole is in butt joint or sleeve joint with the water outlet of the drain pipe 1, and the rotary hole cover 6 is arranged on the drain hole.
Furthermore, the number of the water discharge pipes 1 is multiple, and the water discharge pipes are distributed in an equidistant array; the number of the water drainage holes on the wall surface template 4 is consistent with that of the water drainage pipes 1, and the water drainage holes are distributed in a one-to-one correspondence manner.
Further, the distance between adjacent drain pipes 1 is 2-3 m, and the distance between the water outlet end of the drain pipe 1 at the lowest end and the ground is 0.2-0.4 m.
Further, the distance between the water outlet end of the lowest drain pipe 1 and the ground is 0.3 m.
Further, the drain pipe 1 is a PVC drain pipe.
Further, the drain pipe 1 is obliquely arranged in the retaining wall, and the water inlet end of the drain pipe 1 is higher than the water outlet end of the drain pipe 1.
Further, the pipe diameter of the drain pipe 1 is 8-10 cm.
The utility model discloses a theory of operation: the utility model discloses a construction structures of drainage behind barricade wall include barricade, PVC drain pipe and barricade template, the diameter 8 ~ 10cm of PVC drain pipe, the barricade template adopts the steel form, carries out the trompil processing to the template, trompil diameter ratio PVC pipe diameter is 0.5 ~ 1cm a little bigger, the wash port of being convenient for passes the template, extends to the barricade outside.
The template is provided with a rotatable hole cover, and the hole cover is arranged on the outer side of the template. During construction, the hole cover is rotated to be opened at the position where the drainage hole needs to be arranged, so that the PVC drainage pipe penetrates through the hole and extends to the outer side of the retaining wall by 10-15 cm; for other positions where no drainage hole is needed, the hole cover of the template does not need to be opened and is kept closed.
During construction, the retaining wall is poured according to normal construction procedures, the positions and the number of the water drainage holes are controlled in the pouring process, and meanwhile, gaps between the PVC pipes and the holes of the template are processed. The water outlets of the lowest row of the drain holes are 0.3m higher than the ground, and the transverse distance and the longitudinal distance of the drain holes are generally 2-3 m.
After the mould is removed, the water inlet of the PVC pipe is wrapped by the reverse filtering geotextile 3, and the subsequent wall backfill is carried out; the utility model discloses can simplify the outlet water inlet and handle, convenient inspection, the efficiency of construction is higher.
The implementation process of the construction structure for draining water behind the retaining wall is as follows: and (4) carrying out hole opening treatment on the template, and manufacturing a rotatable hole cover, wherein the hole diameter is slightly larger than that of the drain pipe by 0.5-1 cm, so that the PVC drain pipe can conveniently penetrate through the hole of the template. During construction, the template is supported, and the gradient of the template is consistent with the gradient of the wall surface and the wall back of the retaining wall.
After the formwork is supported, concrete is poured, the approximate position of the PVC drain pipe needing to be arranged is calculated, the PVC drain pipe is arranged when the concrete is poured to the nearby height, the water outlets of the lowest row of drain holes are 0.3m higher than the ground, and the transverse spacing and the longitudinal spacing of the drain holes are generally 2-3 m.
The PVC drain pipe is 8-10 cm in diameter and extends out of the template by 10-15 cm. And (4) processing a gap between the PVC pipe and the template hole.
And after the PVC drain pipe is laid, concrete is continuously poured to cover the drain pipe. If the barricade height is great, when vertically needing to set up multilayer PVC drain pipe, can repeat above twice construction process, until pouring the design elevation to the barricade.
When the maintenance condition of treating the barricade satisfies the demands, demolish the template, utilize and strain geotechnological cloth 3 with PVC drain pipe water inlet parcel, carry out subsequent barricade wall back of the body backfill operation, the utility model discloses mainly solve and get rid of the ponding problem behind the wall fast, handle the template through, make the drain pipe arrange the in-process, can stretch out 10 ~ 15cm from the barricade wall back of the body, after the form removal, the water inlet is wrapped up in to reuse anti-geotechnological cloth 3, forms a holistic anti-structure of straining with the water inlet.
The above is only a preferred embodiment of the present invention, and the scope of the right of the present invention should not be limited by this, so that the equivalent changes made in the claims of the present invention still belong to the protection scope of the present invention.
Claims (8)
1. The utility model provides a construction structures of drainage behind barricade wall, its characterized in that includes two mutual disposition's barricade template and drain pipe, has pour the concrete between two barricade templates, forms the barricade, and the drain pipe transversely nests in the barricade, and the water inlet end of drain pipe is worn out from the dorsal template of barricade wall, and the water inlet end parcel of drain pipe has the anti-geotechnological cloth that strains.
2. The construction structure for the back drainage of the retaining wall according to claim 1, wherein the water inlet end of the drainage pipe penetrates out of the formwork at the back side of the retaining wall and extends 10-15 cm beyond the formwork at the back side of the retaining wall.
3. The construction structure for the back drainage of the retaining wall according to claim 1, wherein the two retaining wall forms are a wall form and a back form, respectively, the wall form is a retaining wall form on the side of the retaining wall, the back form is a retaining wall form on the back of the retaining wall, the wall form is provided with a drain hole and a rotary hole cover, the drain hole is in butt joint with or sleeved with the water outlet of the drainage pipe, and the rotary hole cover is arranged on the drain hole.
4. The retaining wall rear drainage construction structure of claim 3, wherein the number of the drainage pipes is multiple and the drainage pipes are distributed in an equidistant array; the number of the water drainage holes in the wall surface template is consistent with that of the water drainage pipes, and the water drainage holes are distributed in a one-to-one correspondence mode.
5. The construction structure for the post drainage of the retaining wall according to claim 4, wherein the distance between adjacent drainage pipes is 2 to 3m, and the distance between the water outlet end of the lowest drainage pipe and the ground is 0.2 to 0.4 m.
6. The retaining wall post-drainage construction structure of claim 1, wherein the drainage pipe is a PVC drainage pipe.
7. The retaining wall post-drainage construction structure of claim 1, wherein the drainage pipe is obliquely disposed in the retaining wall, and the water inlet end of the drainage pipe is higher than the water outlet end of the drainage pipe.
8. The construction structure for post-drainage of a retaining wall according to claim 1, wherein the pipe diameter of the drainage pipe is 8 to 10 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020874056.0U CN212506392U (en) | 2020-05-22 | 2020-05-22 | Construction structure of drainage behind barricade wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020874056.0U CN212506392U (en) | 2020-05-22 | 2020-05-22 | Construction structure of drainage behind barricade wall |
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| CN212506392U true CN212506392U (en) | 2021-02-09 |
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| CN202020874056.0U Active CN212506392U (en) | 2020-05-22 | 2020-05-22 | Construction structure of drainage behind barricade wall |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114575375A (en) * | 2022-02-14 | 2022-06-03 | 中铁五局集团机械化工程有限责任公司 | Gravity type retaining wall construction method and gravity type retaining wall |
-
2020
- 2020-05-22 CN CN202020874056.0U patent/CN212506392U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114575375A (en) * | 2022-02-14 | 2022-06-03 | 中铁五局集团机械化工程有限责任公司 | Gravity type retaining wall construction method and gravity type retaining wall |
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