CN104947677A - Rapid cofferdam filling construction method for pit in pit - Google Patents
Rapid cofferdam filling construction method for pit in pit Download PDFInfo
- Publication number
- CN104947677A CN104947677A CN201410121611.1A CN201410121611A CN104947677A CN 104947677 A CN104947677 A CN 104947677A CN 201410121611 A CN201410121611 A CN 201410121611A CN 104947677 A CN104947677 A CN 104947677A
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- Prior art keywords
- pit
- cofferdam
- hole
- cofferdam device
- excavation
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- 238000010276 construction Methods 0.000 title claims abstract description 29
- 238000009412 basement excavation Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 239000002689 soil Substances 0.000 claims abstract description 9
- 230000002787 reinforcement Effects 0.000 claims abstract description 6
- 239000004576 sand Substances 0.000 claims abstract description 6
- 238000009415 formwork Methods 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 229910000746 Structural steel Inorganic materials 0.000 abstract 1
- 238000002955 isolation Methods 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 241000209202 Bromus secalinus Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
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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 and fill construction, particularly relate to Zhong Keng cofferdam, hole and fill construction method.
Background technology
Along with the development of China's building cause, engineering land used day is becoming tight, many construction lands are had to be in and soft region or shoal area, when all kinds of foundation pit construction is carried out in this region, there will be the phenomenon that foundation ditch elevation of bottom height is different, i.e. hole in secondary excavation hole, cheats excavation and can cause excavation slope stream soil and drift sand, bring difficulty to foundation pit construction in this region is cheated.
Summary of the invention
The present invention is intended to the defect overcoming prior art, provides in a kind of hole and cheats quick cofferdam filling construction method.The present invention goes along with sb. to guard him effect stability, can ensure construction overall progress in hole in hole; Avoid cheating periphery construction environment in hole to be affected.
In order to solve the problems of the technologies described above, the invention provides in a kind of hole and cheat quick cofferdam filling construction method, it comprises:
Cofferdam device making step: employing steel bar welding is connected into the framework slightly larger than cheating specification in hole; Then lay close order expanded metal lath at frame peripheral, connect collecting well, lower portion uses steel pipe or type steel support;
Cheat excavation step in hole: after cofferdam device is made, hole excavation in needing the place adjusting absolute altitude to cheat, the size of excavation and the degree of depth are slightly larger than cofferdam device;
Cofferdam device mounting and adjusting step, in hole after the excavation of hole, puts in the hole of excavation by cofferdam device immediately, along with the reset of stream soil or drift sand adjusts cofferdam device;
Concreting step: at the peripheral concreting of cofferdam device after adjusting, the peripheral soil body and entirety is made to go along with sb. to guard him stable, water pump is installed after concrete setting in collecting well draw water, after water level decreasing, lay water-separating film in the bottom of cofferdam device, build bed course, assembling reinforcement, formwork, concreting, can complete in hole and cheat inner concrete structure construction.
Cheat quick cofferdam in described hole and fill construction method, in described cofferdam device making step, described reinforcing bar uses reinforcing bar residue waste material in engineering.
The present invention adopts in engineering and remains reinforcing bar waste material and be welded into and cheat the framework of specification slightly larger than in hole, then close order expanded metal lath is laid at frame peripheral, connect collecting well, lower portion uses steel pipe or type steel support, the size of excavation and the degree of depth is cheated slightly larger than cofferdam device in hole, after excavation, immediately cofferdam device is put in the hole of excavation, along with the reset of stream soil or drift sand adjusts cofferdam device, at peripheral concreting after adjusting, water pump is installed after concrete setting in collecting well draw water, water-separating film is laid in the bottom of cofferdam device after water level decreasing, build bed course, assembling reinforcement, formwork, concreting, can complete in hole and cheat inner concrete structure construction.The principle of the invention is simple, convenient operation; Cofferdam device entirety goes along with sb. to guard him effect stability; Construction overall progress in hole in hole can be ensured; Can prevent from cheating periphery construction environment in hole to be affected.
Accompanying drawing illustrates:
Below in conjunction with accompanying drawing, invention is further described:
Fig. 1 is elevational schematic view of the present invention;
Fig. 2 is top view of the present invention.
Detailed description of the invention
As shown in Figure 1, cheat quick cofferdam in a kind of hole and fill construction method, it comprises:
Cofferdam device 11 making step: employing reinforcing bar 1 is welded into the framework slightly larger than cheating specification in hole; Then lay close order expanded metal lath 5 at frame peripheral, connect collecting well 6, lower portion uses steel pipe or type steel support 4;
Cheat excavation step in hole: after cofferdam device is made, hole excavation in needing the place adjusting absolute altitude to cheat, the size of excavation and the degree of depth are slightly larger than cofferdam device;
Cofferdam device mounting and adjusting step, in hole after the excavation of hole, puts in the hole of excavation by cofferdam device immediately, along with the reset of stream soil or drift sand adjusts cofferdam device;
Concreting step: at the peripheral concreting 2 of cofferdam device after adjusting, the peripheral soil body and entirety is made to go along with sb. to guard him stable, water pump is installed after concrete setting in collecting well draw water, after water level decreasing, lay water-separating film 3 in the bottom of cofferdam device, build bed course, assembling reinforcement, formwork, concreting, can complete in hole and cheat inner concrete structure construction.
Cheat quick cofferdam in described hole and fill construction method, in described cofferdam device making step, described reinforcing bar uses reinforcing bar residue waste material in engineering.
Claims (2)
1. cheat quick cofferdam in hole and fill a construction method, it is characterized in that, it comprises:
Cofferdam device making step: employing steel bar welding is connected into the framework slightly larger than cheating specification in hole; Then lay close order expanded metal lath at frame peripheral, connect collecting well, lower portion uses steel pipe or type steel support;
Cheat excavation step in hole: after cofferdam device is made, hole excavation in needing the place adjusting absolute altitude to cheat, the size of excavation and the degree of depth are slightly larger than cofferdam device;
Cofferdam device mounting and adjusting step, in hole after the excavation of hole, puts in the hole of excavation by cofferdam device immediately, along with the reset of stream soil or drift sand adjusts cofferdam device;
Concreting step: at the peripheral concreting of cofferdam device after adjusting, the peripheral soil body and entirety is made to go along with sb. to guard him stable, water pump is installed after concrete setting in collecting well draw water, after water level decreasing, lay water-separating film in the bottom of cofferdam device, build bed course, assembling reinforcement, formwork, concreting, can complete in hole and cheat inner concrete structure construction.
2. cheat quick cofferdam in hole according to claim 1 and fill construction method, it is characterized in that, in described cofferdam device making step, described 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 true CN104947677A (en) | 2015-09-30 |
| CN104947677B CN104947677B (en) | 2017-04-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410121611.1A Active CN104947677B (en) | 2014-03-28 | 2014-03-28 | Rapid cofferdam filling construction method for pit in pit |
Country Status (1)
| Country | Link |
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| CN (1) | CN104947677B (en) |
Cited By (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 |
| CN108343066A (en) * | 2018-04-24 | 2018-07-31 | 中铁二局第工程有限公司 | Hole support construction and excavation method in a kind of subway transfer station interconnection hole |
| 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 | Excavation method of fire elevator foundation pit in building basement in coastal area |
Citations (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 |
| CN101245602A (en) * | 2008-03-13 | 2008-08-20 | 王形 | Construction technique for pits in foundation-pit support system |
| CN101545260A (en) * | 2008-03-27 | 2009-09-30 | 中国二十冶建设有限公司 | Method for supporting bored filling pile driven by stirring pile in foundation pit, group pit and middle pit |
| CN102162250A (en) * | 2010-02-24 | 2011-08-24 | 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 |
| CN103015456A (en) * | 2011-09-21 | 2013-04-03 | 五冶集团上海有限公司 | Rapid pit-in-pit form erecting method in foundation slab of buried concrete structure |
-
2014
- 2014-03-28 CN CN201410121611.1A patent/CN104947677B/en active Active
Patent Citations (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 |
| CN101245602A (en) * | 2008-03-13 | 2008-08-20 | 王形 | Construction technique for pits in foundation-pit support system |
| CN101545260A (en) * | 2008-03-27 | 2009-09-30 | 中国二十冶建设有限公司 | Method for supporting bored filling pile driven by stirring pile in foundation pit, group pit and middle pit |
| CN102162250A (en) * | 2010-02-24 | 2011-08-24 | 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 |
| CN103015456A (en) * | 2011-09-21 | 2013-04-03 | 五冶集团上海有限公司 | Rapid pit-in-pit form erecting method in foundation slab of buried concrete structure |
Cited By (7)
| 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 |
| CN108343066A (en) * | 2018-04-24 | 2018-07-31 | 中铁二局第工程有限公司 | Hole support construction and excavation method in a kind of subway transfer station interconnection hole |
| 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 | Excavation method of fire elevator foundation pit in building basement in coastal area |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104947677B (en) | 2017-04-19 |
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