CN111576461A - Post-cast strip drainage structure and construction method thereof - Google Patents
Post-cast strip drainage structure and construction method thereof Download PDFInfo
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- CN111576461A CN111576461A CN202010511396.1A CN202010511396A CN111576461A CN 111576461 A CN111576461 A CN 111576461A CN 202010511396 A CN202010511396 A CN 202010511396A CN 111576461 A CN111576461 A CN 111576461A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a post-cast strip drainage structure and a construction method thereof, wherein the post-cast strip drainage structure comprises a drainage pipe embedded in a post-cast strip, a water collecting well communicated with the drainage pipe and a flow guide part distributed on the side part of the post-cast strip, wherein through holes which are not uniformly distributed are arranged on the pipe wall of the drainage pipe, a filter screen for filtering is sleeved outside the pipe body of the drainage pipe, a first through hole for communicating the drainage pipe is arranged on the well wall of the water collecting well, and the construction method of the post-cast strip drainage structure is provided, so that the problems that basement drainage is slow and the drainage pipe is easy to block are solved.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a post-cast strip drainage structure and a construction method thereof.
Background
With the rapid development of city construction, underground space is utilized more and more, and particularly with the increase of buildings such as high-rise buildings, super high-rise buildings and the like, the application of multi-layer basements is more and more frequent. However, as the depth of the basement is increased, the basement bottom plate is greatly influenced by the water pressure in the soil layer, when the bottom plate is closed, the abundant underground water in the soil layer may form large pressure on the local area of the bottom plate, so that the bottom plate is arched, leaks water, and even floats upwards integrally, the construction quality of the basement is guaranteed, and the effect of the basement drainage on construction is increasingly remarkable.
Meanwhile, in the building engineering, in order to solve the problems of unconventional design and differential settlement between a high layer and a skirt room, shrinkage deformation of concrete, temperature stress of concrete members and the like due to functional requirements, a post-cast strip method or a reinforced strip method is widely applied to the building engineering, the underground water level of the foundation position is high for work at the edge position of a river bank, the basement foundations of general design drawings are raft foundations, and the post-cast strip position is directly communicated with underground water flow. How to ensure the construction of the post-cast strip is a difficult problem.
In order to solve the drainage problem, Chinese patent CN201721205561.0 discloses a drainage structure of a post-cast strip, which is used for timely drainage during post-cast strip construction, but fine silt is not considered to be deposited in a drainage pipe, and the drainage pipe is easy to block after long service time.
Disclosure of Invention
The invention provides a post-cast strip drainage structure and a construction method thereof, and solves the problems that drainage of a basement is slow and a drainage pipe is easy to block.
In order to solve the technical problems, the invention adopts the technical scheme that the post-cast strip drainage structure comprises a drainage pipe buried in a post-cast strip, a water collecting well communicated with the drainage pipe and a flow guide part distributed on the side part of the post-cast strip, wherein through holes which are not uniformly distributed are formed in the pipe wall of the drainage pipe, a filter screen for filtering is sleeved outside the pipe body of the drainage pipe, a first communication hole for communicating the drainage pipe is formed in the wall of the water collecting well, underground water or collected water is collected to the periphery of the drainage pipe through the flow guide part, then flows into the drainage pipe through the through hole of the drainage pipe and then is collected into the water collecting well, so that drainage of a basement is realized, the flow guide part is favorable for guiding water flow into the drainage pipe, the filter screen effectively filters silt and sundries to prevent blocking the through hole of the drainage pipe, on the other hand, the through holes which are not uniformly distributed are, the acting force to the bottom of the drain pipe is unequal, water flow in the drain pipe impacts with each other, fine silt deposited at the bottom in the drain pipe can be brought into the water flow and discharged to the water collecting well, and the phenomenon that the drain pipe is unsmooth in drainage or blocked due to the fact that the silt is deposited in the drain pipe is prevented.
Preferably, the water conservancy diversion portion is cement perforated brick, has the drainage effect to groundwater on the one hand, and on the other hand can regard as the protective structure of drain pipe, avoids when the construction is not accomplished completely, and the drain pipe directly receives external force and is destroyed.
Preferably, the through-hole is including locating the first through-hole at drain pipe wall top is located the second through-hole of drain pipe wall lateral part, the aperture of first through-hole is greater than the aperture of second through-hole, the through-hole is not seted up to drain pipe wall bottom in this scheme, only set up the through-hole at lateral part and top, thereby help groundwater to collect and flow in to the sump pit in the drain pipe, first through-hole and second through-hole are inhomogeneous distribution, make the water that introduces in the drain pipe through the through-hole form inhomogeneous rivers, the effort to the drain pipe bottom is unequal, rivers impact each other in the drain pipe, can bring the fine silt of deposit bottom into rivers and discharge to the sump pit in the drain pipe, prevent that silt deposit is in the drain pipe, cause that drain pipe drainage is not smooth or block up.
Preferably, the number of the second through holes is larger than that of the first through holes, so that the mutual impact effect of water flows in the drain pipe is enhanced.
Preferably, still including locating the sump pit with the outer wall between the post-cast strip, the outer wall is equipped with the second intercommunicating pore, the drain pipe runs through the second intercommunicating pore with the sump pit intercommunication, and in this scheme, the outer wall is the bearing wall, is basement's frame construction.
Preferably, a water stopping layer is arranged above the flow guide part to prevent groundwater from seeping out.
Preferably, the waterproof layer is a steel plate, and the steel plate can effectively prevent water and has certain bearing capacity.
The construction method of the post-cast strip drainage structure comprises the following steps:
s1, building cement porous bricks on two sides of a post-cast strip, and pouring a C15 concrete cushion layer in the middle;
s2, forming through holes which are distributed unevenly on the pipe wall of the PVC pipe, and covering a filter screen outside the pipe body of the PVC pipe to be used as a drain pipe;
s3, laying the drainage pipe on the upper surface of the C15 concrete cushion layer;
s4, paving broken stones above the C15 concrete cushion layer until the broken stones completely cover the drain pipe;
s5, after an oil felt layer is laid on the broken stone in a dry mode, pouring fine stone concrete with the thickness of 30mm on the broken stone;
s6, a first communication hole is formed in the side wall of the water collecting well and communicated with the water collecting well and the water discharging pipe, the water collecting well can be a cylinder or a cuboid, the water collecting well is built by MU15 cement porous bricks with the width of 250mm and Mb10 cement mortar, the first communication hole can be formed by reserving holes during building, and the first communication hole can also be formed by punching after the building of the water collecting well is completed.
The longitudinal section fault of the post-cast strip drainage structure formed by the scheme is sequentially as follows from bottom to top: 200mm thick broken stone, 150mm thick C15 concrete, a drain pipe, broken stone distributed around the drain pipe, dry-laid asphalt felt and 30mm thick fine stone concrete; the longitudinal section fault of the side part of the post-cast strip is sequentially from bottom to top: cement bedding, cement porous bricks and water stop steel plates.
Preferably, the outer wall surface in the water collecting well is not provided with a mortar layer, so that smooth water seepage is ensured.
Preferably, S1 further comprises laying a steel plate above the cement perforated brick to prevent groundwater from seeping out.
The beneficial effect of this scheme does:
1. the wall of the drain pipe is provided with the through holes which are distributed unevenly, so that water introduced into the drain pipe through the through holes forms unequal water flows, the acting force on the bottom of the drain pipe is unequal, the water flows in the drain pipe impact each other, fine silt deposited at the bottom in the drain pipe can be brought into the water flow and discharged to a water collecting well, and the problem that the drain pipe is unsmooth in drainage or blocked due to the deposition of the silt in the drain pipe is avoided;
2. the structure of the filter screen, the broken stone and the diversion layer is arranged to filter the underground water for multiple times, so that the silt entering the drain pipe is reduced, and the drain blockage of the drain pipe is avoided;
3. the outer wall surface in the water collecting well is not provided with a mortar layer, so that smooth water seepage is ensured;
4. the through holes are formed only on the side part and the top part, so that underground water is gathered in the drain pipe and flows into the water collecting well, the first through holes and the second through holes are non-uniformly distributed, so that water introduced into the drain pipe through the through holes forms non-uniform water flows, the number of the water flows is larger than that of the first through holes, and the mutual impact effect of the water flows in the drain pipe is enhanced;
5. the construction method of the post-cast strip drainage structure is used for instant drainage during post-cast strip construction, normal construction is guaranteed, construction drainage cost is reduced, and the construction method is economical and environment-friendly.
Drawings
FIG. 1 is a top perspective view of a post-cast strip drainage structure;
FIG. 2 is a schematic longitudinal section fault view of a drainage structure of a post-cast strip;
FIG. 3 is a cross-sectional schematic view of a post-cast strip drainage structure;
FIG. 4 is a schematic view of a drain pipe structure;
in the figure: 1. a drain pipe; 2. a water collecting well; 3. a flow guide part; 11. a through hole; 4. filtering with a screen; 21. a first communication hole; 111. a first through hole; 112. a second through hole; 5. an outer wall; 51. a second communication hole; 6. and (5) a water stopping layer.
Detailed Description
The present invention is described in detail below by way of examples, it should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the non-essential modifications and adjustments made by those skilled in the art according to the above disclosure still belong to the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "horizontal," "vertical," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Example 1
A post-cast strip drainage structure comprises a drainage pipe 1 buried in a post-cast strip, a water collecting well 2 communicated with the drainage pipe 1, and flow guide parts 3 distributed on the side parts of the post-cast strip, wherein through holes 11 which are non-uniformly distributed are formed in the pipe wall of the drainage pipe 1, a filter screen 4 for filtering is sleeved outside the pipe body of the drainage pipe 1, a first communication hole 21 for communicating the drainage pipe 1 is formed in the wall of the water collecting well 2, underground water or collected water is collected to the periphery of the drainage pipe 1 through the flow guide parts 3 firstly, then flows into the drainage pipe 1 through the through holes 11 of the drainage pipe 1 and then is collected into the water collecting well 2, drainage of a basement is realized, the flow guide parts 3 are favorable for guiding water flow into the drainage pipe 1, the filter screen 4 effectively filters silt and sundries to prevent the drainage pipe 1 from blocking the through holes 11, on the other hand, the through holes 11 which are non-uniformly distributed are formed, acting force to the drain pipe 1 bottom varies, and rivers impact each other in the drain pipe 1, can bring the fine silt of deposit bottom in the drain pipe 1 into rivers and discharge to sump pit 2, prevents that silt deposit from causing drain pipe 1 drainage not smooth or block up in the drain pipe 1.
The water conservancy diversion portion 3 is the cement perforated brick, has the drainage effect to groundwater on the one hand, and on the other hand can regard as the protective structure of drain pipe 1, avoids when the construction is not accomplished completely, and drain pipe 1 directly receives external force and is destroyed.
Through-hole 11 is including locating the first through-hole 111 at 1 pipe wall top of drain pipe locates the second through-hole 112 of 1 pipe wall lateral part of drain pipe, the aperture of first through-hole 111 is greater than the aperture of second through-hole 112, through-hole 11 is not seted up to 1 pipe wall bottom of drain pipe in this scheme, only set up through-hole 11 at lateral part and top, thereby help groundwater to collect in drain pipe 1 flow into to sump pit 2 in, first through-hole 111 and second through-hole 112 are non-uniform distribution, make the water that introduces in drain pipe 1 through-hole 11 form unequal rivers, the effort to drain pipe 1 bottom is unequal, rivers impact each other in drain pipe 1, can bring the fine silt of deposit bottom in drain pipe 1 into rivers and discharge to sump pit 2, prevent silt deposit in drain pipe 1, cause that drain pipe 1 drainage is not smooth or block up.
The number of the second through holes 112 is greater than the number of the first through holes 111, so that the impact of the water flow in the drain pipe 1 is enhanced.
Still including locating the sump pit 2 with outer wall 5 between the post-cast strip, outer wall 5 is equipped with second intercommunicating pore 51, drain pipe 1 runs through second intercommunicating pore 51 with sump pit 2 communicates, and in this scheme, outer wall 5 is the bearing wall, is the frame construction of basement.
And a water stopping layer 6 is arranged above the flow guide part 3 to prevent groundwater from seeping.
The waterproof layer 6 is a steel plate which can effectively prevent water and has certain bearing capacity.
Example 2
A construction method of a post-cast strip drainage structure comprises the following steps:
s1, building cement porous bricks on two sides of a post-cast strip, and pouring a C15 concrete cushion layer in the middle;
s2, arranging through holes 11 which are distributed non-uniformly on the pipe wall of the PVC pipe, and coating a filter screen 4 outside the pipe body of the PVC pipe to serve as a drain pipe 1, wherein the pipe diameter of the PVC pipe is 50 mm;
s3, laying the drain pipe 1 on the upper surface of the C15 concrete cushion layer;
s4, paving broken stones above the C15 concrete cushion layer until the broken stones completely cover the drainage pipe 1;
s5, after an oil felt layer is laid on the broken stone in a dry mode, pouring fine stone concrete with the thickness of 30mm on the broken stone;
s6, a first communicating hole 21 is formed in the side wall of the water collecting well 2 and communicated with the water collecting well 2 and the drain pipe 1, in the scheme, the water collecting well 2 can be a cylinder or a cuboid, the water collecting well 2 is formed by building 250mm wide MU15 cement porous bricks and Mb10 cement mortar, the first communicating hole 21 can be formed by reserving holes during building, and the first communicating hole can also be formed by punching after the building of the water collecting well 2 is completed.
The longitudinal section fault of the post-cast strip drainage structure formed by the scheme is sequentially as follows from bottom to top: 200mm thick broken stone, 150mm thick C15 concrete, a drain pipe 1, broken stone distributed around the drain pipe 1, dry-laid asphalt felt and 30mm thick fine stone concrete; the longitudinal section fault of the side part of the post-cast strip is sequentially from bottom to top: cement bedding, cement porous bricks and water stop steel plates.
And no mortar layer is formed on the surfaces of the inner wall 5 and the outer wall 5 of the water collecting well 2, so that smooth water seepage is ensured.
S1 also comprises the step of paving a steel plate above the cement perforated brick to prevent the seepage of underground water.
The contents of the present invention are not limited to the above-described embodiments, and other embodiments within the technical teaching of the present invention by those skilled in the art are within the scope of the present invention.
Claims (10)
1. The utility model provides a drainage structures falls in post-cast strip, its characterized in that, including bury drain pipe (1) in post-cast strip underground, with sump pit (2) of drain pipe (1) intercommunication, distribute in water conservancy diversion portion (3) of post-cast strip lateral part, drain pipe (1) pipe wall is equipped with non-uniform distribution's through-hole (11), drain pipe (1) pipe shaft overcoat is equipped with and is used for filterable filter screen (4), sump pit (2) wall of a well is equipped with and is used for the intercommunication first through-hole (21) of drain pipe (1).
2. A post-cast strip drainage structure according to claim 1, wherein the flow guide part (3) is a cement perforated brick.
3. A post-cast strip drainage structure according to claim 1, wherein the through holes (11) comprise a first through hole (111) arranged at the top of the pipe wall of the drainage pipe (1) and a second through hole (112) arranged at the side of the pipe wall of the drainage pipe (1), and the diameter of the first through hole (111) is larger than that of the second through hole (112).
4. A post-cast strip drainage structure according to claim 3, wherein the number of the second through holes (112) is greater than the number of the first through holes (111).
5. A post-cast strip drainage structure according to claim 1, further comprising an outer wall (5) arranged between the water collecting well (2) and the post-cast strip, wherein the outer wall (5) is provided with a second communication hole (51), and the drainage pipe (1) is communicated with the water collecting well (2) through the second communication hole (51).
6. A post-cast strip drainage structure according to claim 1, characterized in that a water stop layer (6) is arranged above the diversion part (3).
7. A post-cast strip drainage structure as claimed in claim 1, wherein the water-stopping layer (6) is a steel plate.
8. A construction method of a post-cast strip drainage structure according to claim 1, comprising the steps of:
s1, building cement porous bricks on two sides of a post-cast strip, and pouring a C15 concrete cushion layer in the middle;
s2, arranging through holes (11) which are distributed non-uniformly on the pipe wall of the PVC pipe, and covering a filter screen (4) outside the pipe body of the PVC pipe to be used as a drain pipe (1);
s3, laying the drain pipe (1) on the upper surface of the C15 concrete cushion layer;
s4, paving broken stones above the C15 concrete cushion layer until the broken stones completely cover the drain pipe (1);
s5, after an oil felt layer is laid on the broken stone in a dry mode, pouring fine stone concrete with the thickness of 30mm on the broken stone;
s6, a first communication hole (21) is formed in the side wall of the water collecting well (2) and communicated with the water collecting well (2) and the water drainage pipe (1).
9. The construction method of a post-cast strip drainage structure according to claim 8, wherein the inner and outer walls (5) of the water collecting well (2) are covered with mortar layers.
10. The construction method of a post-cast strip drainage structure according to claim 8, wherein S1 further comprises laying a steel plate above the cement perforated bricks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010511396.1A CN111576461A (en) | 2020-06-08 | 2020-06-08 | Post-cast strip drainage structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010511396.1A CN111576461A (en) | 2020-06-08 | 2020-06-08 | Post-cast strip drainage structure and construction method thereof |
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| CN111576461A true CN111576461A (en) | 2020-08-25 |
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| CN202010511396.1A Pending CN111576461A (en) | 2020-06-08 | 2020-06-08 | Post-cast strip drainage structure and construction method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201801890U (en) * | 2010-08-10 | 2011-04-20 | 朱奎 | Post-pouring belt of basement with structural joint |
| CN203034494U (en) * | 2012-12-24 | 2013-07-03 | 浙江天力建设集团有限公司 | Water draining structure for basement bottom plate back watering belt |
| AU2013206618B1 (en) * | 2013-06-28 | 2014-10-09 | Mark Robert Edmund Curtis | Wall Seal System |
| CN208201897U (en) * | 2018-04-23 | 2018-12-07 | 厦门特房建设工程集团有限公司 | A kind of filtering discharge structure applied to building lot |
| CN109372016A (en) * | 2018-11-06 | 2019-02-22 | 合肥市义兴建筑安装工程有限责任公司 | Basement bottom plate rear pouring tape structure and construction method under high artesian |
-
2020
- 2020-06-08 CN CN202010511396.1A patent/CN111576461A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201801890U (en) * | 2010-08-10 | 2011-04-20 | 朱奎 | Post-pouring belt of basement with structural joint |
| CN203034494U (en) * | 2012-12-24 | 2013-07-03 | 浙江天力建设集团有限公司 | Water draining structure for basement bottom plate back watering belt |
| AU2013206618B1 (en) * | 2013-06-28 | 2014-10-09 | Mark Robert Edmund Curtis | Wall Seal System |
| CN208201897U (en) * | 2018-04-23 | 2018-12-07 | 厦门特房建设工程集团有限公司 | A kind of filtering discharge structure applied to building lot |
| CN109372016A (en) * | 2018-11-06 | 2019-02-22 | 合肥市义兴建筑安装工程有限责任公司 | Basement bottom plate rear pouring tape structure and construction method under high artesian |
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Application publication date: 20200825 |