CN206477344U - Foundation pit supporting construction - Google Patents
Foundation pit supporting construction Download PDFInfo
- Publication number
- CN206477344U CN206477344U CN201720047937.3U CN201720047937U CN206477344U CN 206477344 U CN206477344 U CN 206477344U CN 201720047937 U CN201720047937 U CN 201720047937U CN 206477344 U CN206477344 U CN 206477344U
- Authority
- CN
- China
- Prior art keywords
- pile
- prestressed pipe
- supporting construction
- foundation pit
- guan liang
- 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.)
- Expired - Fee Related
Links
- 238000010276 construction Methods 0.000 title claims abstract description 53
- 230000008093 supporting effect Effects 0.000 title claims abstract description 49
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 33
- 239000010959 steel Substances 0.000 claims abstract description 33
- 239000002689 soil Substances 0.000 claims abstract description 11
- 239000004744 fabric Substances 0.000 claims description 12
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model is related to a kind of foundation pit supporting construction, including：It is embedded in the soil body of foundation ditch surrounding and spaced pile for prestressed pipe；It is inserted in the shaped steel part in the pile for prestressed pipe；And the Guan Liang being formed at the top of the pile for prestressed pipe is poured, multiple pile for prestressed pipe are connected by the Guan Liang.The utility model is arranged on using the pile for prestressed pipe combination in a row laid at the top of pile tube and elongated Guan Liang is as the supporting construction of foundation ditch, reduces the deformation of foundation pit side-wall, it is ensured that foundation ditch is in stable state.And inserted with shaped steel part in pile for prestressed pipe, improve bending resistance, the shear behavior of single pile tube, the final holistic resistant behavior for improving supporting construction.It ensure that the supporting of foundation ditch is stable.
Description
Technical field
The utility model is related to foundation pit supporting project field, refers in particular to a kind of foundation pit supporting construction.
Background technology
When being excavated to the deep basal pit that cutting depth is more than 10 meters, to prevent excavation construction from causing surface displacement, prevent
Excessive deformation and destruction occur for foundation ditch periphery existing building, to ensure safe construction under deep basal pit, and reduce deep basal pit to attached
Nearly existed building, the influence of road, need to carry out timely, firm supporting to foundation ditch.
During the existing progress supporting to foundation ditch, the supporting scheme of anchor pole is generally added using campshed, single drilling is specifically used
Bored concrete pile adds the piled anchor formula supporting scheme that individual layer soil anchor bolt is combined.But campshed adds the supporting scheme of anchor pole to there is work progress
The problems such as complexity, low construction efficiency, higher input cost.And the anchor force of anchor pole is not enough, for the supporting effect of deep basal pit
It is poor.
Utility model content
The purpose of this utility model is that the defect for overcoming prior art, there is provided a kind of foundation pit supporting construction, is solved existing
Work progress complexity, low construction efficiency and the input cost height that the supporting scheme of anchor pole is present etc. is added using campshed in technology
Problem.
Realizing the technical scheme of above-mentioned purpose is：
The utility model provides a kind of foundation pit supporting construction, including：
It is embedded in the soil body of foundation ditch surrounding and spaced pile for prestressed pipe；
It is inserted in the shaped steel part in the pile for prestressed pipe；And
The Guan Liang being formed at the top of the pile for prestressed pipe is poured, multiple pile for prestressed pipe are linked to be one by the Guan Liang
Body.
The utility model is combined using the pile for prestressed pipe in a row laid to be arranged at the top of pile tube and elongated Guan Liang conduct
The supporting construction of foundation ditch, reduces the deformation of foundation pit side-wall, it is ensured that foundation ditch is in stable state.And in pile for prestressed pipe inserted with
Shaped steel part, improves bending resistance, the shear behavior of single pile tube, the final holistic resistant behavior for improving supporting construction.It ensure that foundation ditch
Supporting it is stable.
The utility model foundation pit supporting construction further improvement is that, the top of the shaped steel part is embedded to the Guan Liang
It is interior.
The utility model foundation pit supporting construction further improvement is that, poured in the pile for prestressed pipe and be formed with a core
Structure.
The utility model foundation pit supporting construction further improvement is that, the shaped steel part be I-steel.
The utility model foundation pit supporting construction further improvement is that, in addition to be completely hung on the pile for prestressed pipe and lean on
The geotechnological layer of cloth of the nearly foundation ditch side.
The utility model foundation pit supporting construction further improvement is that, the geotechnological layer of cloth passes through in two prestressed pipes
U-shaped card between stake in the insertion soil body hangs the side for being fixed on the pile for prestressed pipe.
Brief description of the drawings
Fig. 1 is the sectional view of the utility model foundation pit supporting construction.
Fig. 2 is the sectional view of pile for prestressed pipe in the utility model foundation pit supporting construction.
Fig. 3 is the sectional view of Guan Liang and pile for prestressed pipe in the utility model foundation pit supporting construction.
Fig. 4 is the sectional view of geotextiles in the utility model foundation pit supporting construction.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Refering to Fig. 1 and Fig. 2, the utility model provides a kind of foundation pit supporting construction, particular for complexity such as weak soil, flour sands
In limited, strict to the foundation pit deformation requirement deep-foundation pit engineering under the conditions of addressing context and proposed place.The supporting construction has
There are good integrity, security performance stable, environmental protection, construction method is simple, economic benefit and duration remarkable benefit.With reference to
Accompanying drawing is illustrated to the utility model foundation pit supporting construction.
As shown in figure 1, the utility model provides a kind of foundation pit supporting construction, for the supporting to foundation ditch 10, it is ensured that base
The stabilization in hole 10.With reference to shown in Fig. 2, the foundation pit supporting construction includes pile for prestressed pipe 21, shaped steel part 22 and Guan Liang 23, in advance
Stress pile tube 21 is embedded in the soil body 11 of the surrounding of foundation ditch 10, and pile for prestressed pipe 21 is arranged at intervals and in a row laid.Shaped steel part
22 are inserted in pile for prestressed pipe 21, so as to improve the bending resistance of single pile for prestressed pipe 21, shear behavior, finally play raising
The effect of supporting construction holistic resistant behavior.Guan Liang 23 pours the top for being formed at pile for prestressed pipe 21, will be many by Guan Liang 23
Individual pile for prestressed pipe 21 is connected.
The utility model is combined using the pile for prestressed pipe in a row laid to be arranged at the top of pile tube and elongated Guan Liang conduct
The supporting construction of foundation ditch, reduces the deformation of foundation pit side-wall, it is ensured that foundation ditch is in stable state.And in pile for prestressed pipe inserted with
Shaped steel part, improves bending resistance, the shear behavior of single pile tube, the final holistic resistant behavior for improving supporting construction.It ensure that foundation ditch
Supporting it is stable.
Further, with reference to shown in Fig. 3, when shaped steel part 22 is inserted into pile for prestressed pipe 21, the top of shaped steel part 22 is allowed
Portion protrudes out the mouth of pipe of pile for prestressed pipe 21 so that when subsequently pouring Guan Liang 23, in the top embedment Guan Liang 23 of shaped steel part 22.
The bonding strength between Guan Liang 23 and pile for prestressed pipe 21 is added, while also improving the stress performance of supporting construction.
As a better embodiment of the present utility model, with reference to shown in Fig. 2, shaped steel part 22 is being inserted into prestressed pipe
After in stake 21, a cored structure 211 is formed with being poured in pile for prestressed pipe 21, shaped steel part 22 is anchored by stake cored structure 211,
This cored structure 211 is formed by pouring microdilatancy pea gravel concreten into pile for prestressed pipe 21.It is preferred that shaped steel part 22 is adopted
With I-steel, include two flange plates and the web being connected between flange plate, web is with the direction at the edge of vertical foundation pit 10
Set, the edge of such two of which flange plate and foundation ditch be arranged in parallel.
As shown in Figure 1 and Figure 4, as a better embodiment of the present utility model, foundation pit supporting construction also includes full extension
In the geotechnological layer of cloth 24 on pile for prestressed pipe 21 close to the side of foundation ditch 10, geotechnological layer of cloth 24 is attached at the internal face of foundation ditch 10, applied
The excavation of foundation ditch can be carried out after pile for prestressed pipe and Guan Liang after work, foundation ditch is when excavating, the internal face and prestressing force of the foundation ditch
Pile tube 21 is affixed, so the geotechnological layer of cloth 24 is covered in the side on pile for prestressed pipe 21 close to foundation ditch 10, that is, by geotechnique
Layer of cloth 24 is covered on the internal face of foundation ditch 10.It is preferred that the geotechnological layer of cloth 24 is fixed by U-shaped card 25, the U-shaped card 25 is from soil
The outside of work layer of cloth 24 is through in geotechnological layer of cloth 24 and the soil body 11 that is inserted into two pile for prestressed pipe 21, so that by geotechnique
Layer of cloth 24 is fixed on the side of pile for prestressed pipe 21.
Pile for prestressed pipe 21 of the present utility model is used using PHC piles (PHC), I-steel
12.6# I-steel, first uses hammering method in place, then to be pressed I-steel according to pile tube anchor point successively pile sinking concrete tubular pile
Go deep into pile for prestressed pipe according to perpendicular to foundation pit side-wall direction total length.In tube pile construction, after after earth excavation to designed elevation, according to
Secondary releasing piling foundation plan, it is then -- loose to press from both sides -- rising -- according to pushing successively from two ends to middle or from centre to two ends orders
Press from both sides again -- the order pressed again carries out that alignment straightening, pile extension and Stake head handling should be carried out in piling construction, pile driving process.I-steel
Interpolation is constructed, after prestressing pipe pile construction is finished, and the 12.6# I-steel made according to the long processing of stake is sequentially placed into pre- answer
In solenoid stake, reinforcing bar is welded in the depth anchored into according to I-steel in Guan Liang so that I-steel vertical foundation pit sidewall direction is placed in the middle
It is placed in Guan Liang.
After pile tube and I-steel construction are finished, then required according to construction drawing, the earthwork of Guan Liang position is cleared up
Totally, reinforcing bar colligation, formwork are carried out successively, microdilatancy pea gravel concreten is finally poured in pile for prestressed pipe, treat to mix in pile tube
Solidifying soil, which is poured, to be finished after static a period of time, then carried out Guan Liang concrete construction, concrete construction should be carried out after finishing insulation and
Maintenance work.
When being preced with beam steel bar colligation and model sheetinstallat, the earthwork to the Guan Liang design bottom at Guan Liang is cleaned out according to drawing requirement and is marked
Height, then carries out that cover to reinforcement thickness should be stopped in the work such as hat beam steel bar colligation, model sheetinstallat, reinforcing bar process of binding successively
Degree.
In pile for prestressed pipe inner concrete and Guan Liang concreting, I-steel simultaneously vertical foundation pit side wall side placed in the middle is checked
To after formwork reinforcement is intact, casting concrete successively as requested should be first in casting prestressed pile tube during concreting
Concrete, tubular pile concrete is poured finish after answer stagnation for a period of time, then carry out Guan Liang concreting, should during casting concrete
Carry out concrete vibrating work.
After concrete pouring construction is finished, the maintenance work of concrete, particularly winter should be carried out, heat-preserving anti-freezing should be carried out
Measure, it is to avoid concrete is endured cold.
In pile for prestressed pipe insert I-steel+Guan Liang supporting construction and its construction method quick construction efficiently, environmental protection, peace
Full performance stabilization, economic benefit and duration remarkable benefit, compared to concrete drilling bored concrete pile+Guan Liang cable bolting mode, energy
Construction cost is enough saved, with 135.7 meters long from south to north, exemplified by the foundation pit structure that 95.4 meters of thing length, supporting knot of the present utility model
Structure saves more than 900,000 yuan of construction cost altogether compared to concrete drilling bored concrete pile+Guan Liang cable bolting mode.
The utility model is described in detail above in association with accompanying drawing embodiment, those skilled in the art can root
Many variations example is made to the utility model according to described above.Thus, some of embodiment details should not be constituted to this practicality
New restriction, the utility model regard the scope defined using appended claims as protection domain of the present utility model.
Claims (6)
1. a kind of foundation pit supporting construction, it is characterised in that including：
It is embedded in the soil body of foundation ditch surrounding and spaced pile for prestressed pipe；
It is inserted in the shaped steel part in the pile for prestressed pipe；And
The Guan Liang being formed at the top of the pile for prestressed pipe is poured, multiple pile for prestressed pipe are connected by the Guan Liang.
2. foundation pit supporting construction as claimed in claim 1, it is characterised in that the top of the shaped steel part is embedded to the Guan Liang
It is interior.
3. foundation pit supporting construction as claimed in claim 1 or 2, it is characterised in that pour and be formed with the pile for prestressed pipe
Stake cored structure.
4. foundation pit supporting construction as claimed in claim 1, it is characterised in that the shaped steel part is I-steel.
5. foundation pit supporting construction as claimed in claim 1, it is characterised in that also leaned on including being completely hung on the pile for prestressed pipe
The geotechnological layer of cloth of the nearly foundation ditch side.
6. foundation pit supporting construction as claimed in claim 5, it is characterised in that the geotechnological layer of cloth passes through in two prestressed pipes
U-shaped card between stake in the insertion soil body hangs the side for being fixed on the pile for prestressed pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720047937.3U CN206477344U (en) | 2017-01-16 | 2017-01-16 | Foundation pit supporting construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720047937.3U CN206477344U (en) | 2017-01-16 | 2017-01-16 | Foundation pit supporting construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206477344U true CN206477344U (en) | 2017-09-08 |
Family
ID=59753561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720047937.3U Expired - Fee Related CN206477344U (en) | 2017-01-16 | 2017-01-16 | Foundation pit supporting construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206477344U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457706A (en) * | 2018-12-28 | 2019-03-12 | 北京城建北方集团有限公司 | Foundation pit edge protection can be had enough to meet the need |
| CN111021353A (en) * | 2019-12-30 | 2020-04-17 | 中国建筑第四工程局有限公司 | Reinforcement method and structure for prestressed pipe pile defects |
| CN113216218A (en) * | 2021-03-26 | 2021-08-06 | 招商局重庆交通科研设计院有限公司 | Cutting slope anti-slip structure and construction method thereof |
-
2017
- 2017-01-16 CN CN201720047937.3U patent/CN206477344U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457706A (en) * | 2018-12-28 | 2019-03-12 | 北京城建北方集团有限公司 | Foundation pit edge protection can be had enough to meet the need |
| CN109457706B (en) * | 2018-12-28 | 2024-04-02 | 北京城建北方集团有限公司 | Can have enough to meet need foundation ditch face limit protection |
| CN111021353A (en) * | 2019-12-30 | 2020-04-17 | 中国建筑第四工程局有限公司 | Reinforcement method and structure for prestressed pipe pile defects |
| CN113216218A (en) * | 2021-03-26 | 2021-08-06 | 招商局重庆交通科研设计院有限公司 | Cutting slope anti-slip structure and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170908 |