CN112709246A - Treatment method for local water burst of foundation pit - Google Patents
Treatment method for local water burst of foundation pit Download PDFInfo
- Publication number
- CN112709246A CN112709246A CN202011561088.6A CN202011561088A CN112709246A CN 112709246 A CN112709246 A CN 112709246A CN 202011561088 A CN202011561088 A CN 202011561088A CN 112709246 A CN112709246 A CN 112709246A
- Authority
- CN
- China
- Prior art keywords
- water
- water collecting
- collecting sleeve
- foundation pit
- foundation
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 179
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000010276 construction Methods 0.000 claims abstract description 14
- 239000004575 stone Substances 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000002265 prevention Effects 0.000 claims description 2
- 239000013589 supplement Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- 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
-
- 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
- E02D31/10—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 soil pressure or hydraulic pressure
- E02D31/12—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 soil pressure or hydraulic pressure against upward hydraulic pressure
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to a treatment method of local water burst of a foundation pit, which comprises the following steps: the method comprises the following steps: when the local water gushing of the foundation pit occurs, the water gushing part is over-dug, and a layer of thick broken stone is laid at the water gushing part of the foundation pit; step two: burying a water collecting sleeve and a plurality of water seepage pipes, wherein the water collecting sleeve is vertically arranged, the bottom of the water collecting sleeve is sealed, a plurality of water collecting holes are formed in the periphery of the lower part of the water collecting sleeve, the water seepage pipes are obliquely arranged, the lower end of each water seepage pipe is connected with the water collecting holes of the water collecting sleeve, the foundation pit is backfilled to the elevation of the bottom of the foundation slab by using broken stones or pebbles, water flows into the water collecting sleeve through the water seepage pipes, and water in the water collecting sleeve is pumped out by using a water pump; step three: the construction of the foundation bottom plate is started after the foundation bottom plate is embedded and finished, after the whole foundation bottom plate has anti-floating capacity, the water collecting hole is screwed down from the inside of the water collecting sleeve by using the threaded end cover, the water collecting sleeve is filled and blocked to the upper opening by 150mm by using the concrete with the same strength as the bottom plate, then the water stopping blind plate is welded and installed at the upper end, and the concrete is poured to the top after the construction is finished.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a method for treating local water burst of a foundation pit.
Background
Modern cities are constantly developing, but cities cannot spread to expand indefinitely. The reasonable development of urban underground space makes the limited urban land play greater utility, which is a necessary trend of urban development. In south China and most coastal areas, the underground water level is high, and when underground space is used for building, water gushes from local foundation pits often occur to affect the building of the raft. Currently, there is still no simple and effective treatment to solve such problems.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for treating local water gushing of a foundation pit.
The technical scheme adopted by the invention for solving the technical problems is as follows: the method for treating the local water burst of the foundation pit is characterized by comprising the following steps:
the method comprises the following steps: when the local water gushing of the foundation pit occurs, the water gushing part is subjected to overbreak, and a layer of crushed stone with the thickness of 150mm is laid at the water gushing part of the foundation pit;
step two: burying a water collecting sleeve and a plurality of water seepage pipes, wherein the water collecting sleeve is vertically arranged, the bottom of the water collecting sleeve is sealed, a plurality of water collecting holes are formed in the periphery of the lower portion of the water collecting sleeve, the water seepage pipes are obliquely arranged, the lower end of each water seepage pipe is connected with the water collecting holes of the water collecting sleeve, a foundation pit is backfilled to the elevation of the bottom of a foundation slab by using broken stones or pebbles, the thickness of the broken stone layer on the periphery of each water seepage pipe is not less than 100mm, the laying density and the length of each water seepage pipe are set according to the water inflow amount and the water inflow area, water flows into the water collecting sleeve through the water;
step three: the construction of the foundation bottom plate is started after the foundation bottom plate is embedded and finished, after the whole foundation bottom plate has anti-floating capacity, the water collecting hole is screwed down from the inside of the water collecting sleeve by using the threaded end cover, the water collecting sleeve is filled and blocked by using the concrete with the same strength as the bottom plate to the upper opening of 150mm, then the water stopping blind plate is welded and installed at the upper end to perform secondary water prevention, and the concrete is poured to the top after the construction is finished to finish the whole construction.
As a supplement to the technical scheme of the invention, the water collecting sleeve is a steel pipe with the diameter of 300 mm.
As a supplement to the technical scheme of the invention, a rigid water stop ring is arranged on the outer side of the middle part of the water collecting sleeve.
As a supplement to the technical scheme of the invention, the aperture of the water collecting hole is 15 mm.
As a supplement to the technical scheme of the invention, the distance between the water collecting hole and the upper end opening of the water collecting sleeve is less than 500 mm.
As a supplement to the technical scheme of the invention, the water seepage pipe is a PVC plastic pipe, a water seepage port is arranged on the water seepage pipe at intervals of 10mm along the length direction, and the aperture of the water seepage port is 1-2 mm.
As a supplement to the technical scheme of the invention, the aperture of the PVC plastic pipe is 15 mm.
As a supplement to the technical scheme of the invention, the included angle between the water seepage pipe and the horizontal plane is 1 degree.
As a supplement to the technical scheme of the invention, the bottom of the water collecting sleeve is plugged by using a common blind plate.
Has the advantages that: the invention relates to a method for treating local water burst of a foundation pit, which has the following advantages:
1. the manufacturing is simple, common steel pipes, plastic pipes and common steel plates are adopted, the manufacturing materials are easy to purchase, additional processing is not needed, and the manufacturing is simple and convenient to implement;
2. the cost is low, compared with other dewatering methods, the treatment method does not need special construction machinery for construction, other power assistance is not needed in the water accumulation process, too large energy consumption is not needed, the water collection effect is obvious, and the method is safe and reliable;
3. the working procedures are saved, the crushed stone layer is convenient to obtain materials, the bearing capacity of the foundation can be effectively changed, the foundation treatment is not needed except for special conditions, and the crushed stone layer is favorable for water delivery and prevents water from flowing to the upper surface;
4. the waterproof effect is good, the water collecting sleeve is waterproof layer by layer through a plurality of waterproof components such as end covers, concrete, blind plates, rigid water stopping rings and the like, the waterproof effect is reliable, and the effect is obvious;
5. the service life is long, can be according to building structure needs, treat that superstructure construction accomplishes, have complete anti floating ability, and this department concrete is pour to the back, guarantees that during the construction, the bottom plate can not come up, ensures structure safety.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a usage diagram of the present invention.
The figure is as follows: 1. the water collecting sleeve comprises a water collecting sleeve 2, a water stopping blind plate 3, a rigid water stopping ring 4, concrete filling 5, a water seepage pipe 6 and a threaded end cover.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
The embodiment of the invention relates to a method for treating local water burst of a foundation pit, which is characterized by comprising the following steps of:
the method comprises the following steps: when the local water gushing of the foundation pit occurs, the water gushing part is subjected to overbreak, and a layer of crushed stone with the thickness of 150mm is laid at the water gushing part of the foundation pit;
step two: burying a water collecting sleeve 1 and a plurality of water seepage pipes 5, wherein the water collecting sleeve 1 is vertically arranged, the bottom of the water collecting sleeve 1 is sealed, a plurality of water collecting holes are formed around the lower part of the water collecting sleeve 1, the water seepage pipes 5 are obliquely arranged, the lower end of each water seepage pipe 5 is connected with the water collecting holes of the water collecting sleeve 1, a foundation pit is backfilled to the bottom elevation of a foundation slab by using broken stones or pebbles, the thickness of the broken stone layer around the water seepage pipes 5 is ensured to be not less than 100mm, the laying density and the length of the water seepage pipes 5 are set according to the water inflow amount and the water inflow area, water flows into the water collecting sleeve 1 through the water seepage pipes 5, and water in the water;
step three: the construction of foundation slab begins after burying the completion underground, treat that whole possess anti floating ability after, use threaded end cover 6 to screw up the water collecting hole from the inside of water collecting sleeve pipe 1, use the concrete of bottom plate with intensity to fill 4 shutoff water collecting sleeve pipe 1 to the suitable for reading 150mm, at last end welding installation stagnant water blind plate 2 after that, do the secondary waterproof, use concrete placement to the top after the completion, accomplish whole construction.
The water collecting sleeve 1 is a steel pipe with the diameter of 300 mm.
And a rigid water stop ring 3 is arranged on the outer side of the middle part of the water collecting sleeve 1.
The aperture of the water collecting hole is 15 mm.
The distance between the water collecting hole and the upper end opening of the water collecting sleeve 1 is less than 500mm, and the water collecting hole is used for installing the threaded end cover 6 at the later stage.
The water seepage pipe 5 is made of PVC plastic pipes, water seepage ports are formed in the water seepage pipe 5 at intervals of 10mm along the length direction, and the aperture of each water seepage port is 1-2 mm. The end head at the lower end of the water seepage pipe 5 is cemented with the water collecting sleeve 1.
The aperture of the PVC plastic pipe is 15 mm.
The included angle between the water seepage pipe 5 and the horizontal plane is 1 degree.
The bottom of the water collecting sleeve 1 is plugged by using a common blind plate.
The water seepage pipe 5 is made of a plastic pipe with certain strength, and holes are uniformly formed in the water seepage pipe to increase the water seepage effect. When the underground water gushes, the water flows into the water collecting sleeve 1 from the water seepage pipe 5, and finally the water is concentrated and pumped out, so that no water gushes from the surface of the gravel layer, and a favorable environment is provided for subsequent concrete pouring. The piping-proof range and strength are controlled by the arrangement length and density of the water seepage pipe 5.
Claims (9)
1. A treatment method of local water burst of a foundation pit is characterized by comprising the following steps:
the method comprises the following steps: when the local water gushing of the foundation pit occurs, the water gushing part is subjected to overbreak, and a layer of crushed stone with the thickness of 150mm is laid at the water gushing part of the foundation pit;
step two: burying a water collecting sleeve (1) and a plurality of water seepage pipes (5) underground, wherein the water collecting sleeve (1) is vertically arranged, the bottom of the water collecting sleeve is sealed, a plurality of water collecting holes are formed in the periphery of the lower portion of the water collecting sleeve (1), the water seepage pipes (5) are obliquely arranged, the lower end of each water seepage pipe (5) is connected with the water collecting holes of the water collecting sleeve (1), gravels or pebbles are used for backfilling a foundation pit to the elevation of the bottom of a base plate, meanwhile, the thickness of gravel layers on the periphery of the water seepage pipes (5) is not smaller than 100mm, the laying density and the length of the water seepage pipes (5) are set according to the water inflow amount and the water inflow area, water flows into the water collecting sleeve (1) through the water seepage pipes (5), and water in the;
step three: the construction of the foundation bottom plate is started after the foundation bottom plate is embedded and finished, after the whole foundation bottom plate has anti-floating capacity, the water collecting hole is screwed up from the inside of the water collecting sleeve (1) by using the threaded end cover (6), the water collecting sleeve (1) is plugged to the upper opening by using the concrete with the same strength of the bottom plate (4), then the water stopping blind plate (2) is welded and installed at the upper end to conduct secondary water prevention, and after the construction, concrete is poured to the top to complete the whole construction.
2. The method for treating the local water burst of the foundation pit according to claim 1, wherein the method comprises the following steps: the water collecting sleeve (1) is a steel pipe with the diameter of 300 mm.
3. The method for treating the local water burst of the foundation pit according to claim 1, wherein the method comprises the following steps: the outer side of the middle part of the water collecting sleeve (1) is provided with a rigid water stop ring (3).
4. The method for treating the local water burst of the foundation pit according to claim 1, wherein the method comprises the following steps: the aperture of the water collecting hole is 15 mm.
5. The method for treating the local water burst of the foundation pit according to claim 1, wherein the method comprises the following steps: the distance between the water collecting hole and the upper end opening of the water collecting sleeve (1) is less than 500 mm.
6. The method for treating the local water burst of the foundation pit according to claim 1, wherein the method comprises the following steps: the water seepage pipe (5) is a PVC plastic pipe, water seepage ports are formed in the water seepage pipe (5) at intervals of 10mm along the length direction, and the aperture of each water seepage port is 1-2 mm.
7. The method for treating the local water burst of the foundation pit as claimed in claim 6, wherein: the aperture of the PVC plastic pipe is 15 mm.
8. The method for treating the local water burst of the foundation pit according to claim 1, wherein the method comprises the following steps: the included angle between the water seepage pipe (5) and the horizontal plane is 1 degree.
9. The method for treating the local water burst of the foundation pit according to claim 1, wherein the method comprises the following steps: the bottom of the water collecting sleeve (1) is plugged by using a common blind plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011561088.6A CN112709246A (en) | 2020-12-25 | 2020-12-25 | Treatment method for local water burst of foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011561088.6A CN112709246A (en) | 2020-12-25 | 2020-12-25 | Treatment method for local water burst of foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112709246A true CN112709246A (en) | 2021-04-27 |
Family
ID=75546365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011561088.6A Pending CN112709246A (en) | 2020-12-25 | 2020-12-25 | Treatment method for local water burst of foundation pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112709246A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117005445A (en) * | 2023-07-13 | 2023-11-07 | 中建八局第四建设有限公司 | Precipitation construction method for deep foundation pit fertilizer groove |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526766A (en) * | 2013-10-12 | 2014-01-22 | 中建八局第三建设有限公司 | Method for plugging relief well of deep foundation pit |
| CN207484487U (en) * | 2017-11-29 | 2018-06-12 | 青岛一建集团有限公司 | For the steel drum that catchments of deep basal pit crack sealing with pressure |
| CN108487276A (en) * | 2018-04-27 | 2018-09-04 | 陕西建工机械施工集团有限公司 | A kind of embed-type shallow-layer combined water drain pipe and construction method |
| CN207892653U (en) * | 2018-03-07 | 2018-09-21 | 中铁十一局集团城市轨道工程有限公司 | Decompression hydrophobic structure suitable for Weathering-residual soil layer fissure zone |
-
2020
- 2020-12-25 CN CN202011561088.6A patent/CN112709246A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526766A (en) * | 2013-10-12 | 2014-01-22 | 中建八局第三建设有限公司 | Method for plugging relief well of deep foundation pit |
| CN207484487U (en) * | 2017-11-29 | 2018-06-12 | 青岛一建集团有限公司 | For the steel drum that catchments of deep basal pit crack sealing with pressure |
| CN207892653U (en) * | 2018-03-07 | 2018-09-21 | 中铁十一局集团城市轨道工程有限公司 | Decompression hydrophobic structure suitable for Weathering-residual soil layer fissure zone |
| CN108487276A (en) * | 2018-04-27 | 2018-09-04 | 陕西建工机械施工集团有限公司 | A kind of embed-type shallow-layer combined water drain pipe and construction method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117005445A (en) * | 2023-07-13 | 2023-11-07 | 中建八局第四建设有限公司 | Precipitation construction method for deep foundation pit fertilizer groove |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103046565B (en) | Draining method for ultra-deep batholith deep foundation pit | |
| CN212896422U (en) | Deep foundation pit water intercepting and draining device | |
| CN111236284B (en) | A method and structure for draining groundwater from the bottom and surrounding areas of a basement | |
| CN112281882A (en) | Method for treating water and sand gushing from substrate | |
| CN205152970U (en) | Underground structure oozes drainage system | |
| CN110847199A (en) | Construction method for drainage of underground water of deep foundation pit | |
| CN201567582U (en) | A water-saving device for foundation pit dewatering | |
| CN114855846A (en) | Underground seepage-proofing pressure-reducing anti-floating blind pipe structure and construction method thereof | |
| CN110258660A (en) | The manufacture craft and shut-in well technique of the decompression drainage sump of basement anti-floating | |
| CN109025899B (en) | Well sealing device | |
| CN112709246A (en) | Treatment method for local water burst of foundation pit | |
| CN111042212A (en) | A rear-mounted thin-walled steel pipe drainage device and method for anti-floating of large bottom plate | |
| CN209429046U (en) | Gravity dam transverse joint drainage channel structure | |
| CN205907658U (en) | Be used for anti - structure that seeps water of concrete -faced rockfill dam construction time dam body | |
| CN105970882B (en) | Solve the structure and its building method of face dam construction time dam body reverse osmosis water problems | |
| CN114439027A (en) | Construction method of concrete building foundation on deep and strong permeable foundation of hydropower project | |
| CN212336250U (en) | Pipe jacking connection guide row structure | |
| CN210113318U (en) | Foundation ditch basement gushes water and gushes sand plugging device | |
| CN204690767U (en) | A New Water Collection Sleeve and Water Supply and Drainage Device for Deep Foundation Pit | |
| CN217712488U (en) | Be used for quick shut-in well device of trouble no sand pipe well | |
| CN218813910U (en) | Basement upward floating device in prevention construction stage and pressure limiting device thereof | |
| CN218204507U (en) | Well sealing device for foundation pit dewatering well | |
| CN104846837A (en) | Construction method for ultra-deep well pit in surface drainage foundation pit | |
| CN110206062A (en) | The dark construction method of underground river shallow embedding is worn under a kind of Urban Underground pipe gallery | |
| CN204551507U (en) | A kind of rock foundation ductule local dewatering device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210427 |