CN107780418A - The rapid constructing method cheated in Deep Foundation Pit - Google Patents
The rapid constructing method cheated in Deep Foundation Pit Download PDFInfo
- Publication number
- CN107780418A CN107780418A CN201610744185.6A CN201610744185A CN107780418A CN 107780418 A CN107780418 A CN 107780418A CN 201610744185 A CN201610744185 A CN 201610744185A CN 107780418 A CN107780418 A CN 107780418A
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- CN
- China
- Prior art keywords
- hole
- cheated
- deep
- foundation pit
- construction
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- 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
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses the rapid constructing method cheated in a kind of Deep Foundation Pit, this method is reinforced below hole Zhong Keng regions and deep basal pit bottom using high-pressure rotary jet grouting pile first；When earth excavation is cheated in hole, prefabricated steel supporting construction is installed as earthwork Bian Kaibian is dug, after the completion of earth excavation, steel supporting construction is installed in place, and then pours hole foot mat closing；Precipitation is cheated in hole and uses deep-well precipitation, and is integrally formed with peripheral deep foundation pit precipitation；Wall body structure construction is cheated in hole, for steel supporting construction as foundation ditch exterior sheathing, casting concrete completes wall body structure construction.This method carries out supporting while earth excavation is cheated in hole, avoids the security risk that hole earth excavation is brought to deep basal pit in hole, improves efficiency of construction.
Description
Technical field
The present invention relates to the rapid constructing method cheated in a kind of Deep Foundation Pit.
Background technology
Industrial equipment foundation usually occurs cheating in hole, due to cheating in the hole of deep basal pit due to technological requirement in deep basal pit
It can not once construct and complete together with outside foundation ditch main body building enclosure, conventional construction method is in deep foundation pit earthwork digging to hole
After middle hole absolute altitude suitable for reading, then carry out concrete concealed beam Construction of Supporting.Due to factors such as concrete curing cycle length, cause to cheat in hole
Open-assembly time is long, can not quick closure bottom plate, bring security risk to deep basal pit, the danger that possibility is caved in be present.
The content of the invention
The technical problems to be solved by the invention are to provide the rapid constructing method cheated in a kind of Deep Foundation Pit, and this method exists
Supporting is carried out while earth excavation is cheated in hole, the security risk that hole earth excavation is brought to deep basal pit in hole is avoided, improves
Efficiency of construction.
In order to solve the above technical problems, the rapid constructing method cheated in Deep Foundation Pit of the present invention comprises the following steps：
Step 1: reinforced below hole Zhong Keng regions and deep basal pit bottom using high-pressure rotary jet grouting pile；
Step 2: when cheating earth excavation in hole, prefabricated steel supporting construction is installed as earthwork Bian Kaibian is dug, earth excavation
After the completion of, steel supporting construction is installed in place, and then pours hole foot mat closing；
Step 3: hole precipitation uses deep-well precipitation in hole, and it is integrally formed with peripheral deep foundation pit precipitation；
Step 4: cheating wall body structure construction in hole, steel supporting construction completes wall knot as foundation ditch exterior sheathing, casting concrete
Structure is constructed.
Further, steel supporting construction includes the support template being made up of longitudinal channel-section steel and transverse channel steels, support template table
Face sets steel plate, and right-angle connecting plate is respectively welded in transverse channel steels both ends, and support template cheats surrounding, adjacent support template in hole
Connected by right-angle connecting plate, supported between opposite support template using cross support bar, cross support bar and support template it
Between be encased inside flitch.
Further, cross support bar front end is respectively equipped with adjustable bracketing.
Further, before support template cheats surrounding in hole, the surface of steel plate of support template is coated using releasing agent.
Because the rapid constructing method cheated in Deep Foundation Pit of the present invention employs above-mentioned technical proposal, i.e., this method is first in hole
Reinforced below hole region and deep basal pit bottom using high-pressure rotary jet grouting pile；When earth excavation is cheated in hole, by prefabricated steel branch
Protection structure is installed as earthwork Bian Kaibian is dug, and after the completion of earth excavation, steel supporting construction is installed in place, and then pours hole heelpiece
Layer closing；Precipitation is cheated in hole and uses deep-well precipitation, and is integrally formed with peripheral deep foundation pit precipitation；Wall body structure construction is cheated in hole,
For steel supporting construction as foundation ditch exterior sheathing, casting concrete completes wall body structure construction.This method cheats earth excavation in hole
While carry out supporting, avoid the earth excavation security risk brought to deep basal pit in hole in hole, improve efficiency of construction.
Brief description of the drawings
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
Fig. 1 is the rapid constructing method schematic diagram cheated in Deep Foundation Pit of the present invention；
Fig. 2 is the schematic diagram of steel supporting construction in this method；
Fig. 3 is the cross support bar structural representation for being used to support support template in this method.
Embodiment
Embodiment is as shown in figure 1, the rapid constructing method cheated in Deep Foundation Pit of the present invention comprises the following steps：
Reinforced Step 1: being cheated in hole below 2 regions and the bottom of deep basal pit 1 using high-pressure rotary jet grouting pile；
Step 2: when cheating 2 earth excavation in hole, prefabricated steel supporting construction 3 is installed as earthwork Bian Kaibian is dug, the earthwork is opened
After the completion of digging, steel supporting construction 3 is installed in place, and then pours hole foot mat closing；
Step 3: cheating 2 precipitation in hole uses deep-well precipitation, and it is integrally formed with the peripheral precipitation of deep basal pit 1；
Step 4: cheating the construction of 2 wall body structures in hole, steel supporting construction 3 is used as foundation ditch exterior sheathing, and casting concrete completes wall
Structure construction, be advantageous to improve the efficiency of wall construction.
As shown in Figure 1, Figure 2 and Figure 3, it is preferred that steel supporting construction 3 is included by longitudinal channel-section steel 31 and the structure of transverse channel steels 32
Into support template, support template surface set steel plate 33, right-angle connecting plate 34, supporting mould is respectively welded in the both ends of transverse channel steels 32
Plate cheats 2 surroundings in hole, and adjacent support template is connected by right-angle connecting plate 34, and cross-shaped is used between opposite support template
Strut 35 is supported, and flitch 36 is encased inside between cross support bar 35 and support template.
Preferably, the front end of cross support bar 35 is respectively equipped with adjustable bracketing 37.Adjustable bracketing spacing is adjustable, convenient realization pair
Effective support of support template.
As shown in Figure 1, it is preferred that before support template cheats 2 surroundings in hole, support template is coated using releasing agent 4
The surface of steel plate 33.
This method quickly carries out cheating supporting and bottom plate back cover in Deep Foundation Pit, shortens and is cheated the engineering time in Deep Foundation Pit, solves
Cheat open-assembly time in certainly cheating and long bring security risk.Steel supporting construction in this method makes simple, convenient material drawing, effectively
Improve efficiency of construction, it is ensured that the safety of construction operation.
Claims (4)
1. the rapid constructing method cheated in a kind of Deep Foundation Pit, it is characterised in that this method comprises the following steps：
Step 1: reinforced below hole Zhong Keng regions and deep basal pit bottom using high-pressure rotary jet grouting pile；
Step 2: when cheating earth excavation in hole, prefabricated steel supporting construction is installed as earthwork Bian Kaibian is dug, earth excavation
After the completion of, steel supporting construction is installed in place, and then pours hole foot mat closing；
Step 3: hole precipitation uses deep-well precipitation in hole, and it is integrally formed with peripheral deep foundation pit precipitation；
Step 4: cheating wall body structure construction in hole, steel supporting construction completes wall knot as foundation ditch exterior sheathing, casting concrete
Structure is constructed.
2. the rapid constructing method cheated in Deep Foundation Pit according to claim 1, it is characterised in that：Steel supporting construction bag
The support template being made up of longitudinal channel-section steel and transverse channel steels is included, support template surface sets steel plate, and transverse channel steels both ends are welded respectively
Right-angle connecting plate is connect, support template cheats surrounding in hole, and adjacent support template is connected by right-angle connecting plate, opposite supporting mould
Supported between plate using cross support bar, flitch is encased inside between cross support bar and support template.
3. the rapid constructing method cheated in Deep Foundation Pit according to claim 2, it is characterised in that：Cross support bar front end
It is respectively equipped with adjustable bracketing.
4. the rapid constructing method cheated in Deep Foundation Pit according to claim 1, it is characterised in that：Support template is located at hole
Before middle hole surrounding, the surface of steel plate of support template is coated using releasing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610744185.6A CN107780418A (en) | 2016-08-29 | 2016-08-29 | The rapid constructing method cheated in Deep Foundation Pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610744185.6A CN107780418A (en) | 2016-08-29 | 2016-08-29 | The rapid constructing method cheated in Deep Foundation Pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107780418A true CN107780418A (en) | 2018-03-09 |
Family
ID=61441345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610744185.6A Pending CN107780418A (en) | 2016-08-29 | 2016-08-29 | The rapid constructing method cheated in Deep Foundation Pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107780418A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108951647A (en) * | 2018-07-18 | 2018-12-07 | 中铁十二局集团第二工程有限公司 | Construction method for supporting is excavated in hole in the hole of open trench tunnel |
| CN111764396A (en) * | 2020-07-07 | 2020-10-13 | 中建一局集团建设发展有限公司 | Construction method for water-rich stratum pit-in-pit |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201883438U (en) * | 2010-12-23 | 2011-06-29 | 东南大学 | Pit-in-foundation-pit steel sheet pile foundation pit supporting structure |
| 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 |
| CN104947677A (en) * | 2014-03-28 | 2015-09-30 | 中国二十冶集团有限公司 | Rapid cofferdam filling construction method for pit in pit |
| CN105133620A (en) * | 2015-08-19 | 2015-12-09 | 中国建筑第八工程局有限公司 | Supporting structure for pit-in-pit with local fluidal plastic sludge soil mass and construction method of supporting structure |
-
2016
- 2016-08-29 CN CN201610744185.6A patent/CN107780418A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201883438U (en) * | 2010-12-23 | 2011-06-29 | 东南大学 | Pit-in-foundation-pit steel sheet pile foundation pit supporting structure |
| 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 |
| CN104947677A (en) * | 2014-03-28 | 2015-09-30 | 中国二十冶集团有限公司 | Rapid cofferdam filling construction method for pit in pit |
| CN105133620A (en) * | 2015-08-19 | 2015-12-09 | 中国建筑第八工程局有限公司 | Supporting structure for pit-in-pit with local fluidal plastic sludge soil mass and construction method of supporting structure |
Non-Patent Citations (2)
| Title |
|---|
| 宋国强: "《施工技术入门》", 1 March 2007, 中国电力出版社 * |
| 郭志军: "水泥搅拌桩在地下室坑中坑支护工程中的应用", 《浙江建筑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108951647A (en) * | 2018-07-18 | 2018-12-07 | 中铁十二局集团第二工程有限公司 | Construction method for supporting is excavated in hole in the hole of open trench tunnel |
| CN111764396A (en) * | 2020-07-07 | 2020-10-13 | 中建一局集团建设发展有限公司 | Construction method for water-rich stratum pit-in-pit |
| 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 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180309 |
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| RJ01 | Rejection of invention patent application after publication |