CN107354950A - A kind of economic quickly catch pit local dewatering method - Google Patents
A kind of economic quickly catch pit local dewatering method Download PDFInfo
- Publication number
- CN107354950A CN107354950A CN201710568276.3A CN201710568276A CN107354950A CN 107354950 A CN107354950 A CN 107354950A CN 201710568276 A CN201710568276 A CN 201710568276A CN 107354950 A CN107354950 A CN 107354950A
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- China
- Prior art keywords
- catch pit
- drainpipe
- construction
- ditch
- ponding well
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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
- 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
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/08—Restraining of underground water by employing open ditches arranged below the level of the water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0006—Plastics
- E02D2300/0007—PVC
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- 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)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
It is the technical problem such as surrounding enviroment differential settlement, the increase of cost and extension of duration caused by precipitation depth to solve catch pit elevator bottom depth in the prior art the invention discloses a kind of economic quickly catch pit local dewatering method.The technical scheme is that：A kind of economic quickly catch pit local dewatering method, comprises the following steps：S1 excavates catch pit in foundation ditch；S2 excavates bright ditch in the bottom surrounding of catch pit；S3：In the corner of catch pit, ponding well is set；S4 sets drainpipe, and S5 sets self priming pump in ponding well；S6 puts to fill out in draining tube wall surrounding and ponding well location puts appropriate microlith；S7 starts self priming pump and drawn water；S8 carries out concrete cushion construction, construction of leveling blanket and waterproof coiled material construction successively after catch pit cheats bottom and catch pit crater wall is dried, to catch pit crater wall and hole bottom；S9 raft plates pour.Present invention ensures that construction quality and construction safety, reduce construction cost, ensure the construction period.
Description
Technical field
The present invention relates to technical field of building construction, and in particular to a kind of economic quickly catch pit local dewatering method.
Background technology
Skyscraper arranges elevator pit and catchmented to make full use of the underground space to be provided with basement more in basement
Hole, generally low than the foundation ditch bottom absolute altitude 1~3m of its absolute altitude.Because embedded depth of foundation is deeper, it usually needs take base pit dewatering to protect
Working face needed for the stabilization of card excavation slope and construction.Existing Foundation Pit Support Design code regulation, design of foundation pit precipitation water level should
Less than foundation ditch bottom surface 0.5m, if using elevator, catch pit elevation of bottom as designing precipitation water level, it is necessary to discharge water increase,
Surrounding building and the differential settlement constructed are had a great influence, while the depth down of dewatering well, increasing number, arrangement are tight
Gather, persistently draw water and not only increase cost, and extend the duration；If water level can not reduce in catch pit elevator, can cause
A large amount of infiltrations of bottom and crater wall are cheated, dry working face can not be obtained, influence construction speed and construction quality, therefore, catch pit
Local dewatering is urgently to be resolved hurrily.
The content of the invention
For the deficiency of above-mentioned background technology, the invention provides a kind of economic quickly catch pit local dewatering method,
It is surrounding enviroment differential settlement, cost caused by precipitation depth to solve catch pit elevator bottom depth in the prior art
Increase and the extension of duration, and bed course, screed-coat and waterproof roll caused by catch pit water level is higher the technology such as can not construct
Problem.
The technical scheme is that：A kind of economic quickly catch pit local dewatering method, comprises the following steps：S1：
Catch pit is excavated in foundation ditch；
S2：The bottom surrounding of catch pit in step sl excavates bright ditch；
S3：The corner of catch pit in step sl is provided with ponding well；
S4：Drainpipe is placed in bright ditch in step s 2, drainpipe is seamlessly connected and placed around catch pit, the pipe of drainpipe
Water seepage hole is uniformly provided with wall；
S5：Self priming pump is set in ponding well in step s3, and self priming pump is connected with the drainpipe in step S4；
S6：Put to fill out in draining tube wall surrounding and ponding well location and put appropriate microlith, avoid mud from blocking the water seepage hole on tube wall；
S7：Start self priming pump to be drawn water, must not have a power failure during drawing water, observe catch pit crater wall and cheat the infiltration situation at bottom；
S8：After catch pit cheats bottom and catch pit crater wall is dried, are carried out by concrete cushion successively and is applied for catch pit crater wall and hole bottom
Work, construction of leveling blanket and waterproof coiled material construction；
S9：Raft plate takes out the self priming pump in ponding well before pouring, and raft board concrete is cast in catch pit, and drainpipe is retained in
In raft foundation.
A width of 270 ~ the 330mm of ditch of bright ditch in the step S2, ditch depth are 270 ~ 330mm.
A length of 290 ~ 320mm of ponding well in the step S3, a width of 290 ~ 320mm, depth are 480 ~ 510mm, self priming pump
In ponding well and guaranteed water level covers pump head.
Drainpipe in the step S4 is PVC plastic pipe, a diameter of 70 ~ 80mm of water seepage hole, is set on the outside of water seepage hole
There are 10 mesh steel wires.
Invention not only avoids the appearance caused by the intensification of local foundation ditch bottom the problems such as catch pit infiltration drift sand, and disappear
Except the differential settlement of the surrounding building of precipitation radius caused by a large amount of precipitation, while it ensure that next procedure is constructed
Acting surface basic unit it is solid, smooth, clean, dry, allow construction it is smooth, save construction cost.In addition, constructed
Drainpipe in journey does not have to take out, and improves operating efficiency, and prevent water level from rising again, it is ensured that smoothly safety is carried out for construction.
Brief description of the drawings
Fig. 1 is the set location schematic diagram of ponding well in the embodiment of the present invention 1.
Fig. 2 is the set location schematic diagram of ponding well in the embodiment of the present invention 2.
Fig. 3 is the set location schematic diagram of ponding well in the embodiment of the present invention 3.
Embodiment
Embodiment 1：As shown in figure 1, a kind of economic quickly catch pit local dewatering method, comprises the following steps：S1：
Catch pit is excavated in foundation ditch, cheat bottom using catch pit carries out catch pit dewatering design as design water level；
S2：The bottom surrounding of catch pit in step sl excavates bright ditch 1, the ditch a width of 300mm, ditch depth 300mm of bright ditch 1.
S3：The corner of catch pit in step sl sets ponding well 2 according to water size, and the water of catch pit is more
When, 4 ponding wells 2 are set respectively in the corner of catch pit, a length of 300mm of ponding well, a width of 300mm, depth 500mm, from
Sucking pump is located in ponding well and guaranteed water level covering pump head.
S4：Drainpipe is placed in bright ditch in step s 2, drainpipe is seamlessly connected and placed around catch pit, drainpipe
Tube wall top half on be uniformly provided with water seepage hole, drainpipe is PVC plastic pipe, a diameter of 75mm of water seepage hole, water seepage hole
Outside is provided with 10 mesh steel wires, and the setting of steel wire prevents soil from entering drainpipe, blocks pipeline.
S5：Self priming pump is set in ponding well in step s3, and self priming pump is connected with the drainpipe in step S4, self-priming
Pump suctions out the water penetrated into drainpipe.
S6：Put to fill out in draining tube wall surrounding and ponding well location and put appropriate microlith, avoid mud from blocking oozing on tube wall
Water hole.
S7：Start self priming pump to be drawn water, must not have a power failure during drawing water, observe catch pit crater wall and cheat the infiltration feelings at bottom
Condition.
S8：After catch pit cheats bottom and catch pit crater wall is dried, concrete cushion is carried out to catch pit crater wall and hole bottom and applied
Work, construction of leveling blanket then is being carried out, is finally carrying out waterproof coiled material construction.
S9：Half an hour takes out the self priming pump in ponding well before raft plate pours, and drainpipe does not take out, and raft board concrete pours
Build in catch pit, drainpipe indwelling is in raft foundation.
Embodiment 2：As shown in Fig. 2 a kind of economic quickly catch pit local dewatering method, in S2 in step sl
The bottom surrounding of catch pit excavates bright ditch 1, the ditch a width of 270mm, ditch depth 270mm of bright ditch 1.
S3：The corner of catch pit in step sl sets ponding well 2 according to water size, and the water of catch pit is general
When, 2 ponding wells 2 of diagonal setting at the corner of catch pit, a length of 290mm of ponding well 2, a width of 290mm, depth 480mm,
Self priming pump is located in ponding well and guaranteed water level covering pump head.
S4：Drainpipe is placed in bright ditch in step s 2, drainpipe is seamlessly connected and placed around catch pit, drainpipe
Tube wall top half on be uniformly provided with water seepage hole, drainpipe is PVC plastic pipe, a diameter of 70mm of water seepage hole, water seepage hole
Outside is provided with 10 mesh steel wires, and the setting of steel wire prevents soil from entering drainpipe, blocks pipeline.
Embodiment 3：As shown in figure 3, a kind of economic quickly catch pit local dewatering method, in S2 in step sl
The bottom surrounding of catch pit excavates bright ditch 1, the ditch a width of 330mm, ditch depth 330mm of bright ditch 1.
S3：The corner of catch pit in step sl sets ponding well 2 according to water size, and the water of catch pit is less
When, any one angle sets 1 ponding well 2, a length of 320mm of ponding well, a width of 320mm at the corner of catch pit, and depth is
510mm, self priming pump is located in ponding well and guaranteed water level covering pump head.
S4：Drainpipe is placed in bright ditch in step s 2, drainpipe is seamlessly connected and placed around catch pit, drainpipe
Tube wall top half on be uniformly provided with water seepage hole, drainpipe is PVC plastic pipe, a diameter of 80mm of water seepage hole, water seepage hole
Outside is provided with 10 mesh steel wires, and the setting of steel wire prevents soil from entering drainpipe, blocks pipeline.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in,
It should all be included within the scope of the present invention.
Claims (4)
- A kind of 1. economic quickly catch pit local dewatering method, it is characterised in that comprise the following steps：S1：Opened in foundation ditch Dig catch pit；S2：The bottom surrounding of catch pit in step sl excavates bright ditch；S3：The corner of catch pit in step sl is provided with ponding well；S4：Drainpipe is placed in bright ditch in step s 2, drainpipe is seamlessly connected and placed around catch pit, the pipe of drainpipe Water seepage hole is uniformly provided with wall；S5：Self priming pump is set in ponding well in step s3, and self priming pump is connected with the drainpipe in step S4；S6：Put to fill out in draining tube wall surrounding and ponding well location and put appropriate microlith, avoid mud from blocking the water seepage hole on tube wall；S7：Start self priming pump to be drawn water, must not have a power failure during drawing water, observe catch pit crater wall and cheat the infiltration situation at bottom；S8：After catch pit cheats bottom and catch pit crater wall is dried, are carried out by concrete cushion successively and is applied for catch pit crater wall and hole bottom Work, construction of leveling blanket and waterproof coiled material construction；S9：Raft plate takes out the self priming pump in ponding well before pouring, and raft board concrete is cast in catch pit, and drainpipe is retained in In raft foundation.
- 2. economic quickly catch pit local dewatering method according to claim 1, it is characterised in that：In the step S2 A width of 270 ~ the 330mm of ditch of bright ditch, ditch depth are 270 ~ 330mm.
- 3. economic quickly catch pit local dewatering method according to claim 1, it is characterised in that：In the step S3 A length of 290 ~ 320mm of ponding well, a width of 290 ~ 320mm, depth are 480 ~ 510mm, and self priming pump is located in ponding well and ensures water Position covering pump head.
- 4. economic quickly catch pit local dewatering method according to claim 1, it is characterised in that：In the step S4 Drainpipe be PVC plastic pipe, a diameter of 70 ~ 80mm of water seepage hole, the outside of water seepage hole is provided with 10 mesh steel wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710568276.3A CN107354950A (en) | 2017-07-13 | 2017-07-13 | A kind of economic quickly catch pit local dewatering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710568276.3A CN107354950A (en) | 2017-07-13 | 2017-07-13 | A kind of economic quickly catch pit local dewatering method |
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| CN107354950A true CN107354950A (en) | 2017-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710568276.3A Pending CN107354950A (en) | 2017-07-13 | 2017-07-13 | A kind of economic quickly catch pit local dewatering method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625382A (en) * | 2018-05-16 | 2018-10-09 | 安徽建筑大学 | Water accumulation preventing system for branch pipe type in-building pit building |
| CN109440775A (en) * | 2018-12-27 | 2019-03-08 | 云南省建设投资控股集团有限公司 | A kind of sunk type foundation pit Yield rainfall relation system, construction method and application method |
| CN109736337A (en) * | 2019-02-22 | 2019-05-10 | 宁蔚蔚 | A kind of substrate elevator catch pit drift sand processing guarantees the dewatering device and method of bed course integrality |
| CN113136884A (en) * | 2021-04-26 | 2021-07-20 | 中国二十二冶集团有限公司 | Construction method of strongly weathered rock foundation pit well rich in low-pressure-bearing fracture water |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009179945A (en) * | 2008-01-29 | 2009-08-13 | Yoshitaka Igawa | Well conduit for road and its construction method |
| CN101705691A (en) * | 2009-10-30 | 2010-05-12 | 南通建工集团股份有限公司 | Construction method of dewatering well under foundation slab in foundation pit |
| CN102162253A (en) * | 2011-05-07 | 2011-08-24 | 山东新城建工股份有限公司 | Precipitation construction method employing pipe embedding in deep foundation pits |
| CN106223351A (en) * | 2016-07-26 | 2016-12-14 | 中国二十二冶集团有限公司 | Self priming pump reduces local groundwater level construction method |
| CN106703057A (en) * | 2016-12-02 | 2017-05-24 | 温州中海建设有限公司 | Basement ground construction maintenance drainage structure of large building and method for constructing basement concrete layer |
-
2017
- 2017-07-13 CN CN201710568276.3A patent/CN107354950A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009179945A (en) * | 2008-01-29 | 2009-08-13 | Yoshitaka Igawa | Well conduit for road and its construction method |
| CN101705691A (en) * | 2009-10-30 | 2010-05-12 | 南通建工集团股份有限公司 | Construction method of dewatering well under foundation slab in foundation pit |
| CN102162253A (en) * | 2011-05-07 | 2011-08-24 | 山东新城建工股份有限公司 | Precipitation construction method employing pipe embedding in deep foundation pits |
| CN106223351A (en) * | 2016-07-26 | 2016-12-14 | 中国二十二冶集团有限公司 | Self priming pump reduces local groundwater level construction method |
| CN106703057A (en) * | 2016-12-02 | 2017-05-24 | 温州中海建设有限公司 | Basement ground construction maintenance drainage structure of large building and method for constructing basement concrete layer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625382A (en) * | 2018-05-16 | 2018-10-09 | 安徽建筑大学 | Water accumulation preventing system for branch pipe type in-building pit building |
| CN109440775A (en) * | 2018-12-27 | 2019-03-08 | 云南省建设投资控股集团有限公司 | A kind of sunk type foundation pit Yield rainfall relation system, construction method and application method |
| CN109440775B (en) * | 2018-12-27 | 2020-11-24 | 云南省建设投资控股集团有限公司 | Sinking type foundation pit dewatering and drainage system, construction method and use method |
| CN109736337A (en) * | 2019-02-22 | 2019-05-10 | 宁蔚蔚 | A kind of substrate elevator catch pit drift sand processing guarantees the dewatering device and method of bed course integrality |
| CN113136884A (en) * | 2021-04-26 | 2021-07-20 | 中国二十二冶集团有限公司 | Construction method of strongly weathered rock foundation pit well rich in low-pressure-bearing fracture water |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171117 |
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| RJ01 | Rejection of invention patent application after publication |