CN110820809A - Construction method and structure for preventing ground from being wetted - Google Patents
Construction method and structure for preventing ground from being wetted Download PDFInfo
- Publication number
- CN110820809A CN110820809A CN201911077036.9A CN201911077036A CN110820809A CN 110820809 A CN110820809 A CN 110820809A CN 201911077036 A CN201911077036 A CN 201911077036A CN 110820809 A CN110820809 A CN 110820809A
- Authority
- CN
- China
- Prior art keywords
- layer
- retaining wall
- backfill
- foundation
- preventing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010276 construction Methods 0.000 title description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000002002 slurry Substances 0.000 claims abstract description 18
- 230000000740 bleeding effect Effects 0.000 claims abstract description 15
- 239000002689 soil Substances 0.000 claims abstract description 14
- 238000007596 consolidation process Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000004746 geotextile Substances 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 101150054854 POU1F1 gene Proteins 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 241000272165 Charadriidae Species 0.000 description 1
- 238000006424 Flood reaction Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- E02D31/06—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 corrosion by soil or water
Abstract
The invention discloses a structure for preventing ground from being wetted, which comprises a foundation pit (1); a group of bearing platforms (2) are arranged in the foundation pit, and the bottoms of the adjacent bearing platforms are connected through a foundation beam (3); the bearing platform is provided with a wall column (4); the adjacent wall columns are connected through a first-layer structural beam (5); a first floor slab (6) is laid on the first-layer structural beam; a retaining wall (7) is arranged in a rectangular frame formed by the foundation beam, the wall column, the foundation beam and the first-layer structural beam (5); a group of water drainage holes (8) are arranged on the retaining wall; a backfill layer (9) is arranged in a rectangular frame surrounded by the retaining walls; a cavity (10) is arranged between the top surface of the backfill layer and the first floor slab. The invention carries out earth backfill by methods of slurry layered pumping, bleeding and consolidation, and reserves a cavity, thereby avoiding the first floor slab from contacting with the soil body to generate tide. The invention has the advantages of convenient material acquisition and simple operation, saves the cost, can achieve the effect of preventing the ground from being wetted, and is suitable for general popularization.
Description
Technical Field
The invention relates to a structure for preventing the ground from being wetted, belonging to the technical field of building construction.
Background
With the continuous development of social economy in China, people in coastal areas are dense, living land is less and less, and building land is continuously developed to coastal alluvial beach areas. The coastal beach area water level is high, receives the plum rain season influence great, leads to the first floor ground to flood tide, and traditional way generally sets up basement or built on stilts layer to guarantee the comfort level that the first floor lives. The method is a key for improving the habitability of buildings by solving the problem that basements or overhead floors are not generally arranged in residences such as multi-storey foreign houses, villas and the like and the problem that the ground of the first floor in a high water level area is wet. The prior art sets up the overhead floor or basement, has the wasting of resources great, and the building utilization ratio is lower, drawback such as cost is higher. Therefore, the existing technologies are not perfect enough and are expected to be further improved.
Disclosure of Invention
The invention aims to provide a structure and a construction method for preventing the ground from being wetted, so as to overcome the defects of great resource waste, low building utilization rate, high cost and the like when an overhead floor or a basement is arranged, and further overcome the defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to a structure for preventing ground from being wetted, which comprises a foundation pit; a group of bearing platforms are arranged in the foundation pit, and the bottoms of the adjacent bearing platforms are connected through a foundation beam; the bearing platform is provided with a wall column; the adjacent upright columns are connected through a first-layer structural beam; a first floor slab is laid on the first-layer structural beam; a retaining wall is arranged in a rectangular frame formed by the foundation beam, the wall column, the foundation beam and the first-layer structural beam; a group of water drainage holes are arranged on the retaining wall; a backfill layer is arranged in a rectangular frame surrounded by the retaining walls; a cavity is arranged between the top surface of the backfill layer and the first floor slab.
In the structure for preventing the ground from being wetted, the backfill layer is slurry formed by adding water into sandy silt and stirring, and the slurry is pumped and discharged into the retaining wall layer by layer through a slurry pump; forming soil body through bleeding, precipitation and consolidation.
In the aforementioned structure that prevents ground flood tide, backfill layer top elevation is higher than outdoor terrace elevation and is not less than 150 mm.
In the aforesaid prevent the structure that ground floods the tide, backfill layer top surface elevation is less than first floor bottom surface elevation and is greater than 300 mm.
In the structure for preventing the ground from getting damp, the hole opening of the water filtering hole on the inner side of the retaining wall is provided with the filter screen.
In the structure for preventing the ground from being wetted, the filter screen is formed by wrapping a steel plate mesh with geotextile.
Due to the adoption of the technical scheme, compared with the prior art, the top surface of the backfill layer is 150mm higher than the outdoor terrace, and a cavity with the height not less than 300mm is reserved between the top surface of the backfill layer and the bottom surface elevation of the first floor slab. The invention adopts the methods of slurry layered pumping drainage, water bleeding and consolidation to backfill the earthwork and reserve the cavity, thereby avoiding the tide generated by the contact between the first-layer structure floor and the soil body. The invention has the advantages of convenient material acquisition and simple operation, saves the cost, can achieve the effect of preventing the ground from being wetted, and is suitable for general popularization.
Drawings
Fig. 1 is a schematic structural view of the present invention.
The labels in the figures are: 1-foundation pit, 2-bearing platform, 3-foundation beam, 4-wall column, 5-first-layer structural beam, 6-first-layer floor slab, 7-retaining wall, 8-drainage hole, 9-backfill layer, 10-cavity and 11-filter screen.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The structure for preventing the ground from being wetted of the present invention, as shown in fig. 1, includes a foundation pit 1; a group of bearing platforms 2 are arranged in the foundation pit 1, and the bottoms of the adjacent bearing platforms 2 are connected through a foundation beam 3; the bearing platform 2 is provided with a wall column 4; the adjacent upright columns 4 are connected through a first-layer structural beam 5; a first floor slab 6 is laid on the first-layer structural beam 5; a retaining wall 7 is arranged in a rectangular frame formed by the foundation beam 3, the wall column 4, the foundation beam 3 and the first-layer structural beam 5; a group of water drainage holes 8 are arranged on the retaining wall 7; a backfill layer 9 is arranged in a rectangular frame enclosed by the retaining walls 7; a cavity 10 is arranged between the top surface of the backfill layer 9 and the first floor 6. The backfill layer 9 is slurry formed by adding water into sandy silt and stirring, and the slurry is pumped and discharged into the retaining wall 7 layer by layer through a slurry pump; forming soil body through bleeding, precipitation and consolidation. The top level of the backfill layer 9 is not less than 150mm higher than the level of the outdoor terrace. The elevation of the top surface of the backfill layer 9 is larger than 300mm lower than the elevation of the bottom surface of the first floor 6. The hole of the water filtering hole 8 at the inner side of the retaining wall 7 is provided with a filter screen 11. The filter screen 11 is formed by wrapping a steel plate net with geotextile.
The construction method of the structure for preventing the ground from being wetted comprises the following steps:
step one, performing earthwork excavation of a foundation pit 1 after pile foundation construction is completed, and excavating the earthwork to a designed elevation;
step two, constructing a bearing platform 2 and a foundation beam 3 at the bottom of the foundation pit 1;
thirdly, pouring a wall column 4 and a first-layer structural beam 5 on the bearing platform 2;
fourthly, building a retaining wall 7 on the surface of the foundation beam 3 and the bearing platform 2 along the periphery of the building, and reserving drain holes 8 on the retaining wall 7;
fifthly, installing a filter screen 11 at the orifice of the bleeding hole 8 on the inner side of the retaining wall 7;
step six, adding water into sandy silty soil by adopting stirring equipment and stirring the sandy silty soil into slurry, pumping the slurry into the retaining wall 7 layer by using a slurry pump, and forming a backfill layer 9 after bleeding, precipitation and soil body consolidation;
seventhly, laying a first floor slab 6 on the first-layer structural beam 5;
and step eight, backfilling the soil dug out of the foundation pit 1 to the outside of the retaining wall 7, and leveling the soil with the elevation of the outdoor terrace.
The concrete embodiment is shown in fig. 1, and the structure of the embodiment comprises a bearing platform 2, a foundation beam 3, a wall column 4 and a first floor 6. In the embodiment, water drainage holes 8 are arranged on a retaining wall 7 and a retaining wall 7 which are built by bricks in a rectangular frame surrounded by a foundation beam 3, a wall column 4 and a first floor 6; a backfill layer 9 is arranged in a rectangular frame enclosed by the retaining walls 7, and a cavity 10 is arranged between the backfill layer 9 and the first floor 6. The construction method is completed according to design drawings and specification requirements; the retaining wall 7 is formed by bonding and building standard concrete blocks by cement mortar, and a certain number of bleeding holes 8 are reserved at the upper part of the retaining wall 7; the water bleeding hole 8 is a water discharging port reserved on the retaining wall 7, and a filter screen 11 is arranged on the inner side of the water bleeding hole 8. The filter screen 11 is composed of a 30mm x 30mm steel plate screen and geotextile. So as to achieve the effect of soil body consolidation by soil retaining and bleeding; the backfill layer 9 is formed by adding water into the sand silt and stirring to form slurry, pumping and discharging the slurry into the retaining wall 7 layer by layer through a sewage pump, pumping and discharging the backfill of the first layer, bleeding and solidifying the slurry, pumping and discharging the backfill of the second layer, bleeding and solidifying the backfill of the third layer, and finally pumping and discharging the backfill of the third layer, bleeding and solidifying the backfill until the solidification reaches a certain compactness, wherein the backfill can be carried out next time; the cavity 10 is a gap between the backfilled soil surface and the bottom of the first floor 6, and a drainage and exhaust hole is reserved on the retaining wall 7 within the height range of the cavity 10.
The working principle of the invention is to backfill the earthwork by means of slurry layered pumping, bleeding and consolidation, and reserve a cavity, so as to avoid the flood tide caused by the contact between the first floor and the soil body. The invention has the advantages of convenient material acquisition and simple operation, saves the cost, can achieve the effect of preventing the ground from being wetted, and is suitable for general popularization.
Claims (6)
1. A structure for preventing the ground from being wetted comprises a foundation pit (1); the method is characterized in that: a group of bearing platforms (2) are arranged in the foundation pit (1), and the bottoms of the adjacent bearing platforms (2) are connected through a foundation beam (3); the bearing platform (2) is provided with a wall column (4); the adjacent upright posts (4) are connected through a first-layer structural beam (5); a first floor slab (6) is laid on the first-layer structural beam (5); a retaining wall (7) is arranged in a rectangular frame formed by the foundation beam (3), the wall column (4), the foundation beam (3) and the first-layer structural beam (5); a group of water drainage holes (8) are arranged on the retaining wall (7); a backfill layer (9) is arranged in a rectangular frame enclosed by the retaining walls (7); a cavity (10) is arranged between the top surface of the backfill layer (9) and the first floor slab (6).
2. The structure for preventing flood tide on the ground according to claim 1, wherein: the backfill layer (9) is a slurry formed by adding water into sandy silt and stirring, and the slurry is pumped into the retaining wall (7) layer by a slurry pump and is subjected to bleeding, precipitation and consolidation to form a soil body.
3. The structure for preventing flood tide on the ground according to claim 1, wherein: the top surface of the backfill layer (9) is higher than the elevation of the outdoor terrace by not less than 150 mm.
4. The structure for preventing flood tide on the ground according to claim 1, wherein: the elevation of the top surface of the backfill layer (9) is less than that of the bottom surface of the first floor slab (6) and is more than 300 mm.
5. The structure for preventing flood tide on the ground according to claim 1, wherein: and a filter screen (11) is arranged at the orifice of the water filtering hole (8) at the inner side of the retaining wall (7).
6. The structure for preventing flood tide on the ground according to claim 1, wherein: the filter screen (11) is formed by wrapping a steel plate net with geotextile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911077036.9A CN110820809A (en) | 2019-11-06 | 2019-11-06 | Construction method and structure for preventing ground from being wetted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911077036.9A CN110820809A (en) | 2019-11-06 | 2019-11-06 | Construction method and structure for preventing ground from being wetted |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110820809A true CN110820809A (en) | 2020-02-21 |
Family
ID=69552892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911077036.9A Pending CN110820809A (en) | 2019-11-06 | 2019-11-06 | Construction method and structure for preventing ground from being wetted |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110820809A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3731493A (en) * | 1971-04-26 | 1973-05-08 | Archer W Gary | Water repellent sand |
| US5890845A (en) * | 1995-11-30 | 1999-04-06 | Ftf Crawlspace Specialists, Inc. | Method and means for sealing crawlspace surfaces |
| US20030054753A1 (en) * | 2000-03-23 | 2003-03-20 | Bengt Steneby | Method and apparatus for ventilation of foundations |
| US20050005567A1 (en) * | 2003-07-11 | 2005-01-13 | Bondo Corporation | Moisture barriers for building construction |
| EP1653008A1 (en) * | 2004-11-02 | 2006-05-03 | Ubbink B.V. | Building with radon protection |
| CN206408802U (en) * | 2016-12-12 | 2017-08-15 | 南京利国建筑装饰工程有限公司 | Damp-proofing ground floor |
| CN206844173U (en) * | 2017-05-10 | 2018-01-05 | 北京筑田建筑装饰工程有限公司 | A kind of moisture-proof construction for basement |
| CN208312629U (en) * | 2018-03-22 | 2019-01-01 | 南昌大学 | A kind of active control ventilating system for false work vacant lot surface layer |
| CN209397705U (en) * | 2018-11-26 | 2019-09-17 | 重庆朴生瑞合建筑设计有限公司 | A kind of first layer ground Damp proof dew retardation framework |
| CN211547830U (en) * | 2019-11-06 | 2020-09-22 | 中国建筑第四工程局有限公司 | Structure for preventing ground from being wetted |
-
2019
- 2019-11-06 CN CN201911077036.9A patent/CN110820809A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3731493A (en) * | 1971-04-26 | 1973-05-08 | Archer W Gary | Water repellent sand |
| US5890845A (en) * | 1995-11-30 | 1999-04-06 | Ftf Crawlspace Specialists, Inc. | Method and means for sealing crawlspace surfaces |
| US20030054753A1 (en) * | 2000-03-23 | 2003-03-20 | Bengt Steneby | Method and apparatus for ventilation of foundations |
| US20050005567A1 (en) * | 2003-07-11 | 2005-01-13 | Bondo Corporation | Moisture barriers for building construction |
| EP1653008A1 (en) * | 2004-11-02 | 2006-05-03 | Ubbink B.V. | Building with radon protection |
| CN206408802U (en) * | 2016-12-12 | 2017-08-15 | 南京利国建筑装饰工程有限公司 | Damp-proofing ground floor |
| CN206844173U (en) * | 2017-05-10 | 2018-01-05 | 北京筑田建筑装饰工程有限公司 | A kind of moisture-proof construction for basement |
| CN208312629U (en) * | 2018-03-22 | 2019-01-01 | 南昌大学 | A kind of active control ventilating system for false work vacant lot surface layer |
| CN209397705U (en) * | 2018-11-26 | 2019-09-17 | 重庆朴生瑞合建筑设计有限公司 | A kind of first layer ground Damp proof dew retardation framework |
| CN211547830U (en) * | 2019-11-06 | 2020-09-22 | 中国建筑第四工程局有限公司 | Structure for preventing ground from being wetted |
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