CN108867676A - A kind of shut off tool and its construction method at round sump foundation pit bottom - Google Patents
A kind of shut off tool and its construction method at round sump foundation pit bottom Download PDFInfo
- Publication number
- CN108867676A CN108867676A CN201810794110.8A CN201810794110A CN108867676A CN 108867676 A CN108867676 A CN 108867676A CN 201810794110 A CN201810794110 A CN 201810794110A CN 108867676 A CN108867676 A CN 108867676A
- Authority
- CN
- China
- Prior art keywords
- sealing water
- steel plate
- round
- shape steel
- plate
- 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.)
- Withdrawn
Links
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
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
-
- 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
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)
- Building Environments (AREA)
Abstract
The invention discloses a kind of shut off tool and its construction method at round sump foundation pit bottom, including steel sleeve, it is welded with one of L shape steel plate for sealing water ring, two L shape steel plate for sealing water rings on the outside of steel sleeve, lower mouth is welded with round plate.After foundation pit is dug to bottom, the steel sleeve is inserted into round sump, first concrete cushion construction, then waterproof layer is affixed on one of L shape steel plate for sealing water loop wall, does additional waterproofing layer and waterstop.When construction base plate waterproofing, one of L shape steel plate for sealing water ring bottom will be turned on waterproof layer, carries out waterproof shell nosing treatment with lute in, then use concreting.Then the welding suitable for reading of round plate cap and steel sleeve is shut, brushes js water-repellent paint, finally uses concreting steel sleeve is suitable for reading again.Construction method of the present invention is easy, does not need professional training, speed of application is fast, and the material used is building site common used material, cheap, good water-proof effect.With biggish economic benefit and social benefit.
Description
Technical field
The present invention relates to technical field of building construction, it is especially a kind of round sump foundation pit bottom shut off tool and its
Construction method.
Background technique
In high-building construction, when ground water pressure is larger, need on sole plate indwelling sump, and in being set in well
Downcomer is set, water pump suction pipe is put into downcomer and is drawn water, is drawn water by water pump concentration and realizes lowering of watertable
Purpose.
When needing to remove precipitation apparatus after foundation construction, the well of sump should be restored to handling at sump
Mouth sole plate.General recovery way is:After stopping precipitation, downcomer is extracted out, rubble is filled in sump and pour bottom
Plate.However, since ground water pressure is larger, underground water easily from former downcomer position and its periphery well it is a large amount of on gush, cause to construct
Difficulty influences poured concrete strength, generates leakage phenomenon, has seriously affected the Quality of recovery of bottom plate.
Summary of the invention
The present invention provides a kind of shut off tool and its construction method at round sump foundation pit bottom, to solve the prior art
There is a problem of that the construction time is long, waterproof effect is poor, material cost is high, trouble is implemented in operation.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of tool that shuts off at round sump foundation pit bottom, including the steel sleeve being vertically centrally placed in sump well, steel
Two L shape steel plate for sealing water rings are welded on the outside of set tube wall, mouth is welded with round plate under steel sleeve.The steel sleeve uses hot rolling
Seamless steel pipe production, outer diameter are 25mm to 35mm smaller than the internal diameter of round sump.The L shape steel plate for sealing water ring thickness is not
Less than 6 mm, the wide 145mm of the side wing to 155 mm, high 25mm to 35 mm, one of L shape steel plate for sealing water ring position is in concrete cushion
On, two L shape steel plate for sealing water ring positions one of L shape steel plate for sealing water ring top 490mm at 510 mm.
A kind of construction method of the tool that shuts off at round sump foundation pit bottom, construction procedure are as follows：
Step 1：Foundation pit is dug to bottom, and the steel sleeve with one of L shape steel plate for sealing water ring, two L shape steel plate for sealing water rings is inserted into
In round sump, steel sleeve is suitable for reading to be higher by 50 mm of substrate absolute altitude；
Step 2：After concrete cushion is constructed, waterproof layer is affixed on one of L shape steel plate for sealing water loop wall, and is separately done
Additional waterproofing layer and rubber fastening band, construct base plate waterproofing when, turn to one of L shape steel plate for sealing water ring bottom on waterproof layer, adopt
Waterproof shell nosing treatment is carried out with lute in, underplate concrete is finally carried out and pours；
Step 3：It is poured using the impervious micro expansive concrete of the p6 for being higher by a strength grade than underplate concrete, vibration compacting, directly
To pouring overflow lip；
Step 4：It is suitable for reading in steel sleeve using round plate cap sleeve and shut in interface welding, it is anti-in steel sleeve surrounding brushing js
Water paint, it is then again that steel sleeve is suitable for reading using concreting.
The invention has the advantages that：Construction method is easy, and operator does not need to carry out professional training, construction speed
Degree is fast, will not influence the construction speed of Other Engineering, and the material used is building site common used material, at low cost, cheap, prevents
Water effect is good.To have biggish economic benefit and social benefit.
Detailed description of the invention
Fig. 1 is vertical section schematic diagram of the invention.
Specific embodiment
Structure and construction method of the invention are described further with reference to the accompanying drawing.
As shown in Figure 1, a kind of tool that shuts off at round sump foundation pit bottom of the invention, by steel sleeve 1, one of L shape
Steel plate for sealing water ring 2, two L shape steel plate for sealing water rings 3 and round plate 4 form.Steel sleeve 1 is made of hot rolled seamless steel tube, outer diameter
It is 25mm to 35mm smaller than the internal diameter of round sump.3 thickness of one of L shape steel plate for sealing water ring 2 and two L shape steel plate for sealing water rings
Not less than 6 mm, the wide 145mm of the side wing to 155 mm, high 25mm to 35 mm, one of 2 position of L shape steel plate for sealing water ring is in concrete mats
Layer 10 on, two L shape steel plate for sealing water rings, 3 position one of L shape steel plate for sealing water ring 2 top 490mm at 510 mm.Steel sleeve
Lower mouth is shut by the welding of round plate 4.
The construction method of this tool that shuts off at round sump foundation pit bottom, steps are as follows：
Step 1：Foundation pit is dug to bottom, by the steel sleeve 1 with one of L shape steel plate for sealing water ring 2, two L shape steel plate for sealing water rings 3
It is inserted into round sump, steel sleeve 1 is suitable for reading to be higher by 50 mm of substrate absolute altitude；
Step 2：After concrete cushion 10 is constructed, waterproof layer 5 is affixed on one of 2 tube wall of L shape steel plate for sealing water ring, and
Separately do additional waterproofing layer 6 and rubber fastening band 7, construct base plate waterproofing 5 when, turn to one of L shape steel plate for sealing water ring on waterproof layer 5
2 bottoms, carry out waterproof shell nosing treatment using lute in, finally carry out underplate concrete 8 and pour；
Step 3：It is poured, is vibrated close using the impervious micro expansive concrete 11 of the p6 for being higher by a strength grade than underplate concrete 8
It is real, until pouring overflow lip；
Step 4：It is suitable for reading in steel sleeve 1 using 12 cap sleeve of round plate and interface welding shut, in 1 surrounding brushing of steel sleeve
Then js water-repellent paint again pours the use concrete 9 suitable for reading of steel sleeve 1.
Claims (4)
1. a kind of tool that shuts off at round sump foundation pit bottom, including the steel sleeve being vertically centrally placed in sump well
（1）, steel sleeve（1）One of L shape steel plate for sealing water ring is welded on the outside of tube wall（2）With two L shape steel plate for sealing water rings（3）, under steel sleeve
Mouth is welded with round plate（4）.
2. the tool that shuts off according to claim 1 at round sump foundation pit bottom, it is characterised in that：The steel sleeve
（1）It is made of hot rolled seamless steel tube, outer diameter is 25mm to 35mm smaller than the internal diameter of round sump.
3. the tool that shuts off according to claim 1 at round sump foundation pit bottom, it is characterised in that：One of L shape
Steel plate for sealing water ring（2）With two L shape steel plate for sealing water rings（3）Thickness is not less than 6 mm, the wide 145mm of the side wing to 155 mm, high 25mm
To 35 mm, one of L shape steel plate for sealing water ring（2）Position is in concrete cushion（10）On, two L shape steel plate for sealing water rings（3）Position exists
One of L shape steel plate for sealing water ring（2）Top 490mm at 510 mm.
4. described in a kind of -3 any one according to claim 1 round sump foundation pit bottom the tool that shuts off construction party
Method, it is characterized in that being following construction procedure：
Step 1：Foundation pit is dug to bottom, will have one of L shape steel plate for sealing water ring（2）, two L shape steel plate for sealing water rings（3）, lower mouth
Place is welded with round plate（4）Steel sleeve（1）It is inserted into round sump, steel sleeve（1）It is suitable for reading to be higher by substrate absolute altitude 50
mm；
Step 2：Concrete cushion（10）After construction, by waterproof layer（5）Affix to one of L shape steel plate for sealing water ring（2）Tube wall
On, and separately do additional waterproofing layer（6）And rubber fastening band（7）, base plate waterproofing of constructing（5）When, waterproof layer（5）On turn to together
L shape steel plate for sealing water ring（2）Bottom carries out waterproof shell nosing treatment using lute in, finally carries out underplate concrete（8）It pours；
Step 3：Using than underplate concrete（8）It is higher by the impervious micro expansive concrete of p6 of a strength grade（11）It pours, vibrates
It is closely knit, until pouring overflow lip；
Step 4：Using round plate（12）Cap sleeve is in steel sleeve（1）It is suitable for reading and interface welding shut, in steel sleeve（1）Four
Week brushes js water-repellent paint, then again by steel sleeve（1）It is suitable for reading to use concrete（9）It pours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810794110.8A CN108867676A (en) | 2018-07-19 | 2018-07-19 | A kind of shut off tool and its construction method at round sump foundation pit bottom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810794110.8A CN108867676A (en) | 2018-07-19 | 2018-07-19 | A kind of shut off tool and its construction method at round sump foundation pit bottom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108867676A true CN108867676A (en) | 2018-11-23 |
Family
ID=64303429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810794110.8A Withdrawn CN108867676A (en) | 2018-07-19 | 2018-07-19 | A kind of shut off tool and its construction method at round sump foundation pit bottom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108867676A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820781A (en) * | 2019-12-03 | 2020-02-21 | 上海宝冶集团有限公司 | Well plugging method for dewatering well |
| CN111424694A (en) * | 2020-04-17 | 2020-07-17 | 广东省水利水电第三工程局有限公司 | Well sealing device and well sealing method for foundation structure water collecting well |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007146568A (en) * | 2005-11-30 | 2007-06-14 | Public Works Research Institute | Groundwater draining method and catchment well |
| CN203188225U (en) * | 2013-04-23 | 2013-09-11 | 中建八局第二建设有限公司 | Novel dewatering-well sealing structure |
| 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 |
| CN204080836U (en) * | 2014-09-10 | 2015-01-07 | 中国建筑第六工程局有限公司 | The fast plugging device of dewatering well in a kind of building basement |
| CN208917857U (en) * | 2018-07-19 | 2019-05-31 | 江苏南通三建集团股份有限公司 | A kind of tool that shuts off at round sump foundation pit bottom |
-
2018
- 2018-07-19 CN CN201810794110.8A patent/CN108867676A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007146568A (en) * | 2005-11-30 | 2007-06-14 | Public Works Research Institute | Groundwater draining method and catchment well |
| CN203188225U (en) * | 2013-04-23 | 2013-09-11 | 中建八局第二建设有限公司 | Novel dewatering-well sealing structure |
| 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 |
| CN204080836U (en) * | 2014-09-10 | 2015-01-07 | 中国建筑第六工程局有限公司 | The fast plugging device of dewatering well in a kind of building basement |
| CN208917857U (en) * | 2018-07-19 | 2019-05-31 | 江苏南通三建集团股份有限公司 | A kind of tool that shuts off at round sump foundation pit bottom |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820781A (en) * | 2019-12-03 | 2020-02-21 | 上海宝冶集团有限公司 | Well plugging method for dewatering well |
| CN111424694A (en) * | 2020-04-17 | 2020-07-17 | 广东省水利水电第三工程局有限公司 | Well sealing device and well sealing method for foundation structure water collecting well |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204343312U (en) | A kind of plugging device of precipitation well in foundation pit | |
| CN107059903A (en) | Bottom plate plugging dewatering well construction method is worn in foundation ditch | |
| CN102561402B (en) | Treatment method for construction joint between top plate and wall of individual underground civil air defense project constructed by covered top-down excavation method | |
| CN206706791U (en) | Base pit dewatering well plugging structure | |
| CN206408655U (en) | The top plate sidewall structure of covered back-digging construction | |
| CN103382722B (en) | Concrete foundation slab restoring method for preformed water collecting well for higher underground hydraulic pressure | |
| CN108867676A (en) | A kind of shut off tool and its construction method at round sump foundation pit bottom | |
| CN107700496A (en) | The inverse suitable combining construction method of deep basal pit | |
| CN104652495B (en) | Internal support of foundation pit column and base plate node waterproof construction technology | |
| CN104264700A (en) | Seepage prevention construction method for light-weight precipitation well point post-cast strip of underground construction | |
| CN103953036A (en) | Construction method of anticorrosion protective sleeve for pipe connection of offshore saline soil electric transmission line pile foundation | |
| CN204000963U (en) | The water-stopping structure of push pipe work well reserving hole | |
| CN105178342B (en) | Precipitation well casing and method for blocking reserved hole of foundation pit through precipitation well casing | |
| CN109025899B (en) | Well sealing device | |
| CN211395755U (en) | Prefabricated square inspection shaft | |
| CN208917857U (en) | A kind of tool that shuts off at round sump foundation pit bottom | |
| CN103397651B (en) | Seal structure of concrete foundation slab of reserved water-collecting well | |
| CN206495224U (en) | A kind of foundation pit of elevator shaft dewatering process structure | |
| CN105507336A (en) | Method for forming composite foundation by using dewatering well | |
| CN209040133U (en) | Well-covering device for dewatering well suitable for rich groundwater region | |
| CN110670613B (en) | Foundation pit elevator shaft water seepage prevention structure and construction method thereof | |
| CN105178364A (en) | Underground building light precipitation well point post-cast strip anti-seepage construction method | |
| CN105201009B (en) | Tower foundation negative-pressure construction method for river channel | |
| CN204570712U (en) | Suspension steel cofferdam hermetic seal structure | |
| CN104060622A (en) | Method for discharging water in pint through steel bucket in pit |
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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181123 |