CN104947677B - Rapid cofferdam filling construction method for pit in pit - Google Patents
Rapid cofferdam filling construction method for pit in pit Download PDFInfo
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- CN104947677B CN104947677B CN201410121611.1A CN201410121611A CN104947677B CN 104947677 B CN104947677 B CN 104947677B CN 201410121611 A CN201410121611 A CN 201410121611A CN 104947677 B CN104947677 B CN 104947677B
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Abstract
The invention relates to cofferdam filling construction, and discloses a rapid cofferdam filling construction method for a pit in a pit. The rapid cofferdam filling construction method includes the steps that a cofferdam device is manufactured; a frame is welded through reinforcements to be in the specification slightly larger than that of the pit in the pit; then a dense-mesh steel plate mesh and a connecting water collecting well are paved on the periphery of the frame, and a steel tube or a structural steel support is used inside the frame; the pit in the pit is excavated, wherein the pit in the pit is excavated at the place where the elevation needs to be adjusted; the cofferdam device is installed and adjusted, after excavation of the pit in the pit is finished, the cofferdam device is instantly placed into the excavated pit, and the cofferdam device is adjusted along with resetting of soil flow or drift sand; after adjustment is finished, concrete is poured on the periphery of the cofferdam device, a water pump is installed in the water collecting well for water pumping after the concrete solidifies, a water isolation mold, a pouring pad layer, the assembling reinforcements, a formwork and the pouring concert are paved to the bottom of the cofferdam device after the water level falls, and then construction can be completed. By means of the rapid cofferdam filling construction method, the containment effect is stable, and the overall schedule of construction of the pit in the pit is guaranteed; influences on the peripheral construction environment of the pit in the pit are avoided.
Description
Technical field
The present invention relates to cofferdam filling construction, more particularly to hole Zhong Keng cofferdam filling construction method.
Background technology
With the development of China's building cause, engineering land used day is becoming tight, and has many construction lands to be in and soft region
Or shoal area, it is when the region carries out all kinds of foundation pit constructions, it may appear that the different phenomenon of bottom of foundation ditch absolute altitude height, i.e., secondary to open
Dig pit middle hole, excavation is cheated in this region is cheated can cause excavation slope stream soil and drift sand, and to foundation pit construction difficulty is brought.
The content of the invention
It is contemplated that overcoming the defect of prior art, there is provided cheat quick cofferdam filling construction method in one kind hole.This
It is bright to go along with sb. to guard him effect stability, it is ensured that construction overall progress in hole in hole；Hole periphery construction environment in hole is avoided to be affected.
In order to solve above-mentioned technical problem, the present invention provides and quick cofferdam filling construction method is cheated in a kind of hole, and it includes：
Cofferdam device making step：The framework of specification is cheated in slightly larger than hole using reinforcement welding；Then in frame peripheral
Close mesh expanded metal lath, connection sump are laid, lower portion uses steel pipe or type steel support；
Excavation step is cheated in hole：After cofferdam device is made, hole is excavated in being cheated where adjustment absolute altitude is needed, and is opened
The size of digging is slightly larger than cofferdam device with depth；
Cofferdam device mounting and adjusting step, after hole excavation is finished in hole, immediately puts into cofferdam device in the hole of excavation,
With stream soil or the reset adjustment cofferdam device of drift sand；
Concreting step：In cofferdam device periphery casting concrete after adjusting, the soil body and entirety for making periphery encloses
Shield is stable, installs water pump in sump after concrete setting and is drawn water, and spreads in the bottom of cofferdam device after water level decreasing
If water-separating film, pouring bed course, assembling reinforcement, formwork, casting concrete, you can the xoncrete structure for completing to be cheated in cheating inside is applied
Work.
Quick cofferdam filling construction method is cheated in described hole, in the cofferdam device making step, the reinforcing bar is used
Reinforcing bar residue waste material in engineering.
The present invention is welded into slightly larger than the framework that specification is cheated in hole, then outside framework using remaining reinforcing bar waste material in engineering
Enclose and lay close mesh expanded metal lath, connection sump, lower portion cheats the size and depth of excavation using steel pipe or type steel support in hole
Slightly larger than cofferdam device, after excavation, cofferdam device is put in the hole of excavation immediately, with the reset adjustment of stream soil or drift sand
Cofferdam device, in peripheral casting concrete after adjusting, installs water pump and is drawn water after concrete setting in sump, treats water
Lay water-separating film, pour bed course, assembling reinforcement, formwork, casting concrete in the bottom of cofferdam device after declining in position, you can complete
The concrete structure construction of inside is cheated in hole.The principle of the invention is simple, is easy to operation；Cofferdam device integrally goes along with sb. to guard him effect stability；
Construction overall progress in hole in hole can be ensured；Hole periphery construction environment in hole can be prevented to be affected.
Description of the drawings：
Below in conjunction with the accompanying drawings, invention is further described：
Fig. 1 is elevational schematic view of the present invention；
Fig. 2 is the top view of the present invention.
Specific embodiment
As shown in figure 1, cheating quick cofferdam filling construction method in a kind of hole, it includes：
The making step of cofferdam device 11：It is welded into slightly larger than the framework that specification is cheated in hole using reinforcing bar 1；Then outside framework
Enclose and lay close mesh expanded metal lath 5, connection sump 6, lower portion uses steel pipe or type steel support 4；
Excavation step is cheated in hole：After cofferdam device is made, hole is excavated in being cheated where adjustment absolute altitude is needed, and is opened
The size of digging is slightly larger than cofferdam device with depth；
Cofferdam device mounting and adjusting step, after hole excavation is finished in hole, immediately puts into cofferdam device in the hole of excavation,
With stream soil or the reset adjustment cofferdam device of drift sand；
Concreting step：In cofferdam device periphery casting concrete 2 after adjusting, the soil body and entirety for making periphery encloses
Shield is stable, installs water pump in sump after concrete setting and is drawn water, and spreads in the bottom of cofferdam device after water level decreasing
If water-separating film 3, pouring bed course, assembling reinforcement, formwork, casting concrete, you can the xoncrete structure for completing to be cheated in cheating inside is applied
Work.
Quick cofferdam filling construction method is cheated in described hole, in the cofferdam device making step, the reinforcing bar is used
Reinforcing bar residue waste material in engineering.
Claims (2)
1. quick cofferdam filling construction method is cheated in a kind of hole, it is characterised in that it includes：
Cofferdam device making step：The framework of specification is cheated in slightly larger than hole using reinforcement welding；Then lay in frame peripheral
Close mesh expanded metal lath, connection sump, lower portion uses steel pipe or type steel support；
Excavation step is cheated in hole：After cofferdam device is made, hole is excavated in being cheated where adjustment absolute altitude is needed, excavation
Size is slightly larger than cofferdam device with depth；
Cofferdam device mounting and adjusting step, after hole excavation is finished in hole, immediately puts into cofferdam device in the hole of excavation, with
The reset adjustment cofferdam device of stream soil or drift sand；
Concreting step：In cofferdam device periphery casting concrete after adjusting, the soil body and entirety for making periphery is gone along with sb. to guard him surely
It is fixed, water pump is installed in sump after concrete setting and is drawn water, after water level decreasing cofferdam device bottom laying every
Moisture film, pour bed course, assembling reinforcement, formwork, casting concrete, you can complete the concrete structure construction that inside is cheated in cheating.
2. quick cofferdam filling construction method is cheated in hole according to claim 1, it is characterised in that the cofferdam device system
In making step, the reinforcing bar uses reinforcing bar residue waste material in engineering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410121611.1A CN104947677B (en) | 2014-03-28 | 2014-03-28 | Rapid cofferdam filling construction method for pit in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410121611.1A CN104947677B (en) | 2014-03-28 | 2014-03-28 | Rapid cofferdam filling construction method for pit in pit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104947677A CN104947677A (en) | 2015-09-30 |
| CN104947677B true CN104947677B (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410121611.1A Active CN104947677B (en) | 2014-03-28 | 2014-03-28 | Rapid cofferdam filling construction method for pit in pit |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542157A (en) * | 2016-06-28 | 2018-01-05 | 五冶集团上海有限公司 | A kind of rapid shaping construction method of underground catch pit |
| CN107780418A (en) * | 2016-08-29 | 2018-03-09 | 中国二十冶集团有限公司 | The rapid constructing method cheated in Deep Foundation Pit |
| CN108343066B (en) * | 2018-04-24 | 2023-11-17 | 中铁二局第一工程有限公司 | Subway transfer station tie line pit in pit supporting structure and excavation method |
| CN112878332A (en) * | 2020-10-11 | 2021-06-01 | 安徽中擎建设发展有限公司 | Basement elevator shaft sump construction structure and method thereof |
| CN113202119A (en) * | 2021-05-20 | 2021-08-03 | 中国水利水电第十一工程局有限公司 | Combined cofferdam for strong-flow sand-ground layer gabion construction of linear river channel and construction method thereof |
| CN116180761A (en) * | 2023-04-06 | 2023-05-30 | 中国十七冶集团有限公司 | Method for excavating foundation pit of firefighting elevator of building basement in coastal area |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0220720A (en) * | 1988-07-07 | 1990-01-24 | Taisei Corp | Underground construction method by muddy water excavation |
| CN100572686C (en) * | 2008-03-13 | 2009-12-23 | 浙江中联建设集团有限公司 | The construction technology of hole support system in the hole |
| CN101545260B (en) * | 2008-03-27 | 2011-03-30 | 中国二十冶集团有限公司 | Method for supporting bored filling pile driven by stirring pile in foundation pit, group pit and middle pit |
| CN102162250B (en) * | 2010-02-24 | 2012-10-10 | 中国二十冶集团有限公司 | Protective construction method of excavating large area deep foundation pit in running sand confined water soil layer |
| CN103015456B (en) * | 2011-09-21 | 2015-05-06 | 五冶集团上海有限公司 | Rapid pit-in-pit form erecting method in foundation slab of buried concrete structure |
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