CN210151748U - Foundation pit water collection surface drainage dewatering system - Google Patents
Foundation pit water collection surface drainage dewatering system Download PDFInfo
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- CN210151748U CN210151748U CN201920446576.9U CN201920446576U CN210151748U CN 210151748 U CN210151748 U CN 210151748U CN 201920446576 U CN201920446576 U CN 201920446576U CN 210151748 U CN210151748 U CN 210151748U
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Abstract
A foundation pit water-collecting open drainage dewatering system is characterized in that a foundation pit is a segmented layered foundation pit and comprises a first drainage ditch arranged on the bottom of the foundation pit, a water retaining wall and a second drainage ditch arranged on each slope top and a net-hanging spraying surface layer paved on the slope and the slope top of the foundation pit, wherein the water retaining wall is arranged on one side, close to the slope of the foundation pit at the lower layer, of the second drainage ditch, and water collecting wells are uniformly arranged in the first drainage ditch and the second drainage ditch at intervals; the first drainage ditch and the second drainage ditch respectively comprise ditch walls, concrete cushion layers and in-ditch plastering layers, wherein the ditch walls are formed by piling up mortar bricks on two sides of the ditch walls; the water collecting well comprises a well wall, a well bottom concrete layer formed by pouring concrete and an in-well plastering layer formed by plastering cement mortar. The utility model discloses the setting that well suspended net spouts the surface course and diversion pipe combines can be effectively for effectively dredging the stagnant water in upper strata, makes whole foundation ditch drainage more smooth and easy, and the concrete layer is close to the part in escape canal and sets up for the slope, helps the foundation ditch drainage.
Description
Technical Field
The utility model belongs to foundation ditch drainage field, concretely relates to open drain precipitation system of foundation ditch catchment.
Background
In the current foundation construction, due to factors such as construction period delay or unclear geological condition investigation, the foundation pit excavation is completed, underground water or surface water flows into the foundation pit and the like at the bottom of the foundation pit, and the water level at the bottom of the foundation pit is too high to construct in subsequent construction through waterproof and reinforcement binding. According to normal conditions, adopt the clear mode of arranging of catchmenting to clear away ponding in the foundation ditch, be provided with the emission that helps foundation ditch internal water through the combination of breakwater, escape canal and water pump, but prior art often ignores the emission of foundation ditch slope water, leads to the internal water of whole foundation ditch to discharge unsmoothly, reduces the efficiency of construction of whole engineering.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a foundation pit water-collecting and surface-drainage dewatering system, which aims to solve the technical problem of unsmooth drainage of the foundation pit in the prior art; and solves the problems of the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a foundation ditch catchment surface drainage precipitation system, the foundation ditch is segmentation layering foundation ditch, its characterized in that: the water retaining wall is arranged on one side of the second drainage ditch close to the lower foundation pit slope, and water collecting wells are uniformly arranged in the first drainage ditch and the second drainage ditch at intervals; the first drainage ditch and the second drainage ditch respectively comprise ditch walls, concrete cushion layers and in-ditch plastering layers, wherein the two sides of each ditch wall are built by sand lime bricks, the concrete cushion layers are formed by pouring concrete, and the in-ditch plastering layers are formed by plastering cement mortar; the catch basin includes the wall of a well that is built by laying bricks and mortar and forms, the shaft bottom concrete layer that forms by concrete placement and the interior rendering coat that forms by the plastering of cement mortar, hang the net and spout the concrete layer that the surface course forms including the reinforcing bar net that is located the lower floor, the strengthening rib that is located the upper strata and the concrete that sprays on reinforcing bar net and strengthening rib, still be equipped with the leading water pipe on the concrete layer, the leading water pipe level sets up, is located on the top of a slope reinforcing bar net tip is crooked downwards and is hung on solid net reinforcing bar, the strengthening rib passes through the soil nail and fixes on the foundation ditch slope.
Further preferably, the reinforcing bars include transverse reinforcing bars and longitudinal reinforcing bars.
Furthermore, two rows of water pipes are arranged on the concrete layer of each foundation pit slope, and the horizontal distance between every two rows of water pipes is 2 m.
Furthermore, the soil nail is arranged at the junction of the transverse steel bar and the longitudinal steel bar.
Further, the concrete layer is poured to the edge of the first drainage ditch or the second drainage ditch from the water retaining wall at the top of the slope.
Furthermore, the thickness of the water retaining wall ranges from 200mm to 300mm, and the height of the water retaining wall ranges from 700 mm to 800 mm.
Further, the thickness of the surface layer in the well and the surface layer in the ditch is 20-30 mm.
In addition, the first drainage ditch and the second drainage ditch are both 1500mm deep and 1200mm wide.
More preferably, the concrete layer is poured in a slope manner at a part of the concrete section close to the first drainage ditch or the second drainage ditch.
Compared with the prior art, the utility model has the following characteristics and beneficial effect.
The utility model discloses the setting that well suspended net spouts the surface course and diversion pipe combines can be effectively for effectively dredging the stagnant water in upper strata, makes whole foundation ditch drainage more smooth and easy, and the setting on concrete layer slope also helps the foundation ditch drainage, and convenient construction, easy operation requires lowly to constructor, and the construction material expense is low, and is little to the foundation ditch influence, can not produce great disturbance to the foundation soil, can last the water in the effectual foundation ditch of discharging.
The utility model has the characteristics of safety, be suitable for etc, there are fine popularization and practical value, can produce good economic benefits after extensive popularization and application.
Drawings
Fig. 1 is a schematic structural view of a foundation pit water-collecting surface drainage precipitation system of the utility model;
fig. 2 is a schematic structural view of the net-hanging spraying surface layer of the utility model;
fig. 3 is a schematic view of the position relationship between the net-fixing reinforcing steel bars and the reinforcing mesh of the present invention;
fig. 4 is a schematic structural view of a water collecting well according to the present invention;
fig. 5 is a schematic structural view of the drainage ditch according to the present invention.
Reference numerals: 1-pit bottom; 2-a first drainage ditch; 3-water retaining wall; 4-a second drainage ditch; 5-a water collecting well; 6-concrete cushion; 7-smearing a surface layer in the ditch; 8-coating a surface layer in the well; 9-well wall; 10-a bottom hole concrete layer; 11-reinforcing mesh; 12-reinforcing ribs; 13-a concrete layer; 14-fixing net reinforcing steel bars; 15-soil nailing; 16-a water conduit; 17-foundation pit slope.
Detailed Description
In order to make the technical means, innovative features, objectives and functions realized by the present invention easy to understand, the present invention will be further described below.
The embodiments described herein are specific embodiments of the present invention, and are intended to be illustrative of the concepts of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the embodiments of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.
A foundation pit water-collecting open drainage precipitation system is a segmented and layered foundation pit and comprises a first drainage ditch 2 arranged on the bottom 1 of the foundation pit, a water retaining wall 3 and a second drainage ditch 4 arranged on each slope top and a net-hanging spray surface layer paved on the slope 17 and the slope top of the foundation pit, wherein the water retaining wall 3 is arranged on one side, close to the slope 17 of the lower foundation pit, of the second drainage ditch 4, water collecting wells 5 are uniformly arranged in the first drainage ditch 2 and the second drainage ditch 4 at intervals, and water in the water collecting wells 5 is drained through a water pump, which is a common technical means in the field and is not described herein; as shown in fig. 5, the drainage ditch comprises a first drainage ditch 2 and a second drainage ditch 4, the first drainage ditch 2 and the second drainage ditch 4 respectively comprise ditch walls with two sides stacked by sand lime bricks, a concrete cushion 6 formed by pouring concrete and a in-ditch plastering layer 7 formed by plastering cement mortar, and the retaining wall is formed by building sand lime bricks and cement mortar; as shown in fig. 4, the water collecting well 5 comprises a well wall 9 formed by building lime-sand bricks and cement mortar, a well bottom concrete layer 10 formed by casting the cement mortar and a well inner plastering layer 8 formed by plastering the cement mortar, wherein the net hanging and spraying layer comprises a reinforcing mesh 11 positioned at the lower layer, reinforcing ribs 12 positioned at the upper layer and a concrete layer 13 formed by concrete sprayed on the reinforcing mesh 11 and the reinforcing ribs 12, a water guide pipe 16 is further arranged on the concrete layer 13, and the water guide pipe 16 is horizontally arranged. As shown in fig. 2, the reinforcing rib 12 includes transverse reinforcing bars and longitudinal reinforcing bars, the soil nails 15 are disposed at the junctions of the transverse reinforcing bars and the longitudinal reinforcing bars, and as can be seen from fig. 1, in order to facilitate the water in the foundation pit to flow into the drainage ditch, a part of the concrete section of the concrete layer 13 close to the first drainage ditch 2 or the second drainage ditch 4 is poured in a slope.
As shown in fig. 3, the end of the reinforcing mesh 11 on the top of the slope is bent downwards and hung on the mesh fixing reinforcing bar 14, the reinforcing bar 12 is fixed on the slope 17 of the foundation pit through soil nails 15, two rows of water guide pipes 16 are arranged on the concrete layer 13 of each layer of the slope 17, the horizontal distance between every two rows of water guide pipes 16 is 2m, the density of the water guide pipes 16 is set according to the specific precipitation and the length of the slope during specific implementation, the concrete layer 13 is poured from the water retaining wall 3 at the top of the slope to the edge of the first drainage ditch 2 or the second drainage ditch 4, and the arrangement of the water guide pipes 16 and the mesh hanging spraying surface layer is helpful for concentrated rainwater discharge to the drainage ditches.
As the preferred embodiment of the utility model, the thickness of the water retaining wall 3 is 200-300 mm, the height is 700-800 mm, and the thickness of the surface coating 8 in the well and the surface coating 7 in the ditch is 20-30 mm; the first drainage ditch 2 and the second drainage ditch 4 are 1500mm deep and 1200mm wide.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. The utility model provides a foundation ditch catchment surface drainage precipitation system, the foundation ditch is segmentation layering foundation ditch, its characterized in that: the water retaining wall structure comprises a first drainage ditch (2) arranged on a foundation pit bottom (1), a water retaining wall (3) and a second drainage ditch (4) arranged on each slope top and a net hanging spraying surface layer paved on a foundation pit slope (17) and the slope top, wherein the water retaining wall (3) is arranged on one side, close to the lower foundation pit slope (17), of the second drainage ditch (4), and water collecting wells (5) are uniformly arranged in the first drainage ditch (2) and the second drainage ditch (4) at intervals; the first drainage ditch (2) and the second drainage ditch (4) respectively comprise ditch walls, concrete cushions (6) and in-ditch plastering layers (7), wherein the two sides of each ditch wall are built by lime-sand bricks, the concrete cushions are cast by concrete, and the in-ditch plastering layers are formed by plastering cement mortar, and the water retaining walls (3) are built by lime-sand bricks and cement mortar; the water collecting well (5) comprises a well wall (9) formed by building mortar bricks and cement mortar, a well bottom concrete layer (10) formed by pouring the concrete and a well inner plastering layer (8) formed by plastering the cement mortar, the net hanging spraying surface layer comprises a reinforcing mesh (11) positioned on a lower layer, a reinforcing rib (12) positioned on an upper layer and a concrete layer (13) formed by spraying the concrete on the reinforcing mesh (11) and the reinforcing rib (12), a water guide pipe (16) is further arranged on the concrete layer (13), the water guide pipe (16) is horizontally arranged and positioned on the top of a slope, the end part of the reinforcing mesh (11) is bent downwards and hung on a net fixing reinforcing steel bar (14), and the reinforcing rib (12) is fixed on a foundation pit slope (17) through a soil nail (15).
2. The foundation pit water-collecting surface-drainage precipitation system of claim 1, wherein: the reinforcing ribs (12) comprise transverse reinforcing steel bars and longitudinal reinforcing steel bars.
3. The foundation pit water-collecting surface-drainage precipitation system of claim 1, wherein: two rows of water pipes (16) are arranged on the concrete layer (13) of each foundation pit slope (17), and the horizontal distance between every two rows of water pipes (16) is 2 m.
4. The foundation pit water-collecting surface-drainage precipitation system of claim 2, wherein: the soil nails (15) are arranged at the junctions of the transverse reinforcing steel bars and the longitudinal reinforcing steel bars.
5. The foundation pit water-collecting surface-drainage precipitation system of claim 1, wherein: and the concrete layer (13) is poured to the edge of the first drainage ditch (2) or the second drainage ditch (4) from the water retaining wall (3) at the top of the slope.
6. The foundation pit water-collecting surface-drainage precipitation system of claim 1, wherein: the thickness of the water retaining wall (3) is 200-300 mm, and the height of the water retaining wall is 700-800 mm.
7. The foundation pit water-collecting surface-drainage precipitation system of claim 1, wherein: the inner surface layer (8) and the inner surface layer (7) of the ditch are both 20-30 mm thick.
8. The foundation pit water-collecting surface-drainage precipitation system of claim 1, wherein: the first drainage ditch (2) and the second drainage ditch (4) are 1500mm deep and 1200mm wide.
9. The foundation pit water-collecting surface-drainage precipitation system as claimed in any one of claims 1 to 8, wherein: and a part of concrete section of the concrete layer (13) close to the first drainage ditch (2) or the second drainage ditch (4) is poured in a slope manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920446576.9U CN210151748U (en) | 2019-04-03 | 2019-04-03 | Foundation pit water collection surface drainage dewatering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920446576.9U CN210151748U (en) | 2019-04-03 | 2019-04-03 | Foundation pit water collection surface drainage dewatering system |
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| CN210151748U true CN210151748U (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920446576.9U Active CN210151748U (en) | 2019-04-03 | 2019-04-03 | Foundation pit water collection surface drainage dewatering system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123360A (en) * | 2021-04-28 | 2021-07-16 | 上海宝冶集团有限公司 | Environment-friendly drainage method for construction of coastal region stone square groove foundation pit in rainy season |
| CN114855845A (en) * | 2022-05-25 | 2022-08-05 | 海颐建工集团有限公司 | Pumping and drainage device for large foundation pit and construction method |
-
2019
- 2019-04-03 CN CN201920446576.9U patent/CN210151748U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123360A (en) * | 2021-04-28 | 2021-07-16 | 上海宝冶集团有限公司 | Environment-friendly drainage method for construction of coastal region stone square groove foundation pit in rainy season |
| CN114855845A (en) * | 2022-05-25 | 2022-08-05 | 海颐建工集团有限公司 | Pumping and drainage device for large foundation pit and construction method |
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