CN106480889A - A kind of Pile of Deep Foundation Pit method of reinforcement design - Google Patents
A kind of Pile of Deep Foundation Pit method of reinforcement design Download PDFInfo
- Publication number
- CN106480889A CN106480889A CN201611023795.3A CN201611023795A CN106480889A CN 106480889 A CN106480889 A CN 106480889A CN 201611023795 A CN201611023795 A CN 201611023795A CN 106480889 A CN106480889 A CN 106480889A
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- pile
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- support pile
- complement
- foundation pit
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- 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
- E02D37/00—Repair of damaged foundations or foundation structures
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- Structural Engineering (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)
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Abstract
The present invention relates to a kind of Pile of Deep Foundation Pit method of reinforcement design, comprise the following steps：S1, the support pile in construction and plan to build between outer wall of basement setting complement support pile；High-pressure rotary jet grouting pile is fixedly installed between the support pile of S2, construction and complement support pile；S3, it is fixedly installed, in the stake top of new complement support pile, the reinforced concrete circle beam being connected with the support pile of construction；S4, construction outer wall of basement.The present invention makes full use of the support pile of construction, low engineering cost, short time limit, has good Social benefit and economic benefit；Prop need not take extra construction site.Newly-increased prop makes full use of the space between construction supporting body and outer wall of basement, is mainly distributed on existing prop and plans to build between outer wall of basement；The method has higher practicality and economic worth in the more nervous project of construction land tenure.
Description
Technical field
The present invention relates to a kind of Pile of Deep Foundation Pit method of reinforcement design, belong to pattern foundation pit supporting structure and the ground in Geotechnical Engineering field
Lower field of engineering technology.
Background technology
In order to meet the needs of urban construction, a lot of project development progresses are very fast, and building function and the basement number of plies are sometimes
Can adjust in construction.Some projects have foundation pit supporting pile has constructed and has finished, but the feelings that the basement number of plies will increase etc.
Condition, the more original design depth of depth of foundation ditch has and increases considerably, the stake of the support pile completing of having constructed is long and stake footpath etc. often
The stress needs of the base pit engineering after depth increases can not be met.For guaranteeing the safety of base pit engineering and surrounding enviroment it is necessary to right
Former foundation pit system carries out Design of Reinforcement.The general support pile completing that considers to have been constructed of Design Method of Reinforcing commonly used at present
Cancel, outside former support pile, again need to carry out the design and construction of support pile, the method overall cost by the depth of foundation ditch
Height, can cause the significant wastage of social resources, and also ratio is larger for the space occupied by another aspect prop, and the construction period is relatively
Long.
Content of the invention
The technical problem to be solved in the invention is：Existing Pile of Deep Foundation Pit Strengthening Design, general consideration has been applied
The support pile that work completes cancels, and again needs to carry out the design and construction of support pile by the depth of foundation ditch outside former support pile,
The method overall cost is high, can cause the significant wastage of social resources, also ratio is larger for the space occupied by another aspect prop,
And the construction period is longer.
The present invention takes technical scheme below：
A kind of Pile of Deep Foundation Pit method of reinforcement design is it is characterised in that comprise the following steps：S1, propping up in construction
Fender pile and plan to build between outer wall of basement 8 setting complement support pile；Fixing between the support pile of S2, construction and complement support pile
Setting high-pressure rotary jet grouting pile；S3, it is fixedly installed, in the stake top of new complement support pile, the reinforced concrete being connected with the support pile of construction
Pedosphere beam 5；S4, construction outer wall of basement 8.
Further, described complement props up stanchion is cast-in-situ bored pile 3, and the support pile of described construction is to go along with sb. to guard him bored concrete pile 2.
Further, described high-pressure rotary jet grouting pile is sealing high-pressure rotary jet grouting pile 4, for the boring of construction supporting stake and complement
The inter-pile soil body of bored concrete pile is reinforced, and is used for water-seal pile reinforcement.
Further, in step S3：Construction supporting stake is laterally fixedly connected with reinforced concrete circle beam 5 by U-shaped muscle,
Mend support pile to be connected with reinforced concrete circle beam by stake top cage bar, stake top cage bar anchors into reinforced concrete circle beam.
Further, step S3 includes：Cut and go along with sb. to guard him bored concrete pile 2 cage bar protective layer, U-shaped muscle 7 is installed, pours coagulation
Soil, has been constructed and has gone along with sb. to guard him bored concrete pile 2, newly-increased cast-in-situ bored pile 3 and reinforced concrete circle beam and be connected as an entirety, stage excavation
To hole bottom absolute altitude.
Further, described complement support pile and the support pile of construction correspond, each complement support pile with corresponding
The support pile of construction between horizontal spacing identical.
Further, it is fixedly connected between adjacent sealing high-pressure rotary jet grouting pile 4 mutually embeddedly.
The beneficial effects of the present invention is：
1) make full use of the support pile of construction, Strengthening Design theory, low engineering cost, duration are adopted to existing support pile
Short, there is good Social benefit and economic benefit；
2) prop need not take extra construction site.Newly-increased prop makes full use of construction supporting body and basement
Space between exterior wall, is mainly distributed on existing prop and plans to build between outer wall of basement.
3) the method has higher practicality and economic worth in the more nervous project of construction land tenure.
4) sealing high-pressure rotary jet grouting pile is used for the inter-pile soil body reinforcing of construction supporting stake and the cast-in-situ bored pile of complement, dual-purpose
In water-seal pile reinforcement, kill two birds with one stone, design is ingenious.
Brief description
Fig. 1 is the top view in the present invention for Pile of Deep Foundation Pit Strengthening Design；
Fig. 2 is the side view in the present invention for Pile of Deep Foundation Pit Strengthening Design；
Fig. 3 is the connection detail drawing of construction supporting stake, the cast-in-situ bored pile of complement and reinforced concrete circle beam in the present invention.
Specific embodiment
The present invention is further described with specific embodiment below in conjunction with the accompanying drawings.
Referring to Fig. 1-Fig. 3, a kind of Pile of Deep Foundation Pit method of reinforcement design, comprise the following steps：S1, propping up in construction
Fender pile and plan to build between outer wall of basement 8 setting complement support pile；Fixing between the support pile of S2, construction and complement support pile
Setting high-pressure rotary jet grouting pile；S3, it is fixedly installed, in the stake top of new complement support pile, the reinforced concrete being connected with the support pile of construction
Pedosphere beam 5；S4, construction outer wall of basement 8.
Referring to Fig. 2, it is cast-in-situ bored pile 3 that described complement props up stanchion, and the support pile of described construction is to go along with sb. to guard him bored concrete pile 2.
Referring to Fig. 1-2, described high-pressure rotary jet grouting pile is sealing high-pressure rotary jet grouting pile 4, for the brill of construction supporting stake and complement
The inter-pile soil body of hole pouring pile is reinforced, and is used for water-seal pile reinforcement.
Referring to Fig. 2-3, in step S3：Construction supporting stake passes through U-shaped muscle laterally and reinforced concrete circle beam 5 is fixing even
Connect, mend support pile and be connected with reinforced concrete circle beam by stake top cage bar, stake top cage bar anchors into reinforced concrete circle beam.
Referring to Fig. 2-3, step S3 includes：Cut and go along with sb. to guard him bored concrete pile 2 cage bar protective layer, the U-shaped muscle 7 of installation, casting concrete,
Constructed and gone along with sb. to guard him bored concrete pile 2, newly-increased cast-in-situ bored pile 3 and reinforced concrete circle beam and be connected as an entirety, stage excavation is extremely
Hole bottom absolute altitude.
Referring to Fig. 1, described complement support pile is corresponded with the support pile of construction, each complement support pile with corresponding
Horizontal spacing between the support pile of construction is identical.
Referring to Fig. 1, it is fixedly connected between adjacent sealing high-pressure rotary jet grouting pile 4 mutually embeddedly.
During Specific construction, referring to Fig. 1-3, install first and constructed water-seal pile 1 and gone along with sb. to guard him bored concrete pile 2, Ran Houan
The newly-increased bored concrete pile 3 of dress and sealing high-pressure rotary jet grouting pile 4, stage excavation to reinforced concrete circle beam 5 bottom surface absolute altitude, newly-increased boring is filled
The internal cage bar 6 of note stake 3 cuts to designed elevation, cuts and goes along with sb. to guard him bored concrete pile 2 cage bar protective layer, the U-shaped muscle 7 of installation, casting concrete,
Constructed and gone along with sb. to guard him bored concrete pile 2, newly-increased cast-in-situ bored pile 3 and reinforced concrete circle beam and be connected as an entirety, stage excavation is extremely
Hole bottom absolute altitude, construction outer wall of basement 8 in time.
It is more than the preferred embodiments of the present invention, on this basis, the present invention can also have various changes and modifications, not
On the premise of departing from the total design of the present invention, these changes and improvements still fall within the protection domain of application claims.
Claims (7)
1. a kind of Pile of Deep Foundation Pit method of reinforcement design is it is characterised in that comprise the following steps：
S1, the support pile in construction and plan to build between outer wall of basement (8) setting complement support pile；
High-pressure rotary jet grouting pile is fixedly installed between the support pile of S2, construction and complement support pile；
S3, it is fixedly installed, in the stake top of new complement support pile, the reinforced concrete circle beam (5) being connected with the support pile of construction；
S4, construction outer wall of basement (8).
2. Pile of Deep Foundation Pit method of reinforcement design as claimed in claim 1 it is characterised in that：It is to bore that described complement props up stanchion
Hole pouring pile (3), the support pile of described construction is to go along with sb. to guard him bored concrete pile (2).
3. Pile of Deep Foundation Pit method of reinforcement design as claimed in claim 1 it is characterised in that：Till described high-pressure rotary jet grouting pile
Water high-pressure rotary jet grouting pile (4), the inter-pile soil body for construction supporting stake and the cast-in-situ bored pile of complement is reinforced, and is used for water-seal pile
Reinforcement.
4. Pile of Deep Foundation Pit method of reinforcement design as claimed in claim 1 it is characterised in that：In step S3：Construct and propped up
Fender pile is laterally fixedly connected with reinforced concrete circle beam (5) by U-shaped muscle, mends support pile and passes through stake top cage bar and armored concrete
Collar tie beam connects, and stake top cage bar anchors into reinforced concrete circle beam.
5. Pile of Deep Foundation Pit method of reinforcement design as claimed in claim 1 it is characterised in that：Step S3 includes：Cut and enclose
Shield bored concrete pile (2) cage bar protective layer, installs U-shaped muscle (7), casting concrete, has been constructed and has gone along with sb. to guard him bored concrete pile (2), newly-increased boring
Bored concrete pile (3) and reinforced concrete circle beam are connected as an entirety, and stage excavation is to hole bottom absolute altitude.
6. Pile of Deep Foundation Pit method of reinforcement design as claimed in claim 1 it is characterised in that：Described complement support pile with
The support pile of construction corresponds, and the horizontal spacing between each complement support pile and the support pile of corresponding construction is identical.
7. Pile of Deep Foundation Pit method of reinforcement design as claimed in claim 1 it is characterised in that：Adjacent sealing high-pressure rotary-spray
It is fixedly connected between stake (4) mutually embeddedly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611023795.3A CN106480889A (en) | 2016-11-14 | 2016-11-14 | A kind of Pile of Deep Foundation Pit method of reinforcement design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611023795.3A CN106480889A (en) | 2016-11-14 | 2016-11-14 | A kind of Pile of Deep Foundation Pit method of reinforcement design |
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| CN106480889A true CN106480889A (en) | 2017-03-08 |
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| CN201611023795.3A Pending CN106480889A (en) | 2016-11-14 | 2016-11-14 | A kind of Pile of Deep Foundation Pit method of reinforcement design |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107761742A (en) * | 2017-10-23 | 2018-03-06 | 上海市城市建设设计研究总院（集团）有限公司 | Along depth direction is multi-form, variable cross-section supporting construction and its construction method |
| CN108951640A (en) * | 2018-07-02 | 2018-12-07 | 上海建工集团股份有限公司 | A kind of Extra-Deep Foundation Pit construction method |
| CN110093926A (en) * | 2018-01-31 | 2019-08-06 | 中国二十冶集团有限公司 | Newly, the old foundation pit system combined and its construction method |
| CN113006109A (en) * | 2021-03-02 | 2021-06-22 | 北京住总第一开发建设有限公司 | Construction method of foundation pit waterproof curtain of strongly permeable stratum area |
| CN113106981A (en) * | 2021-03-31 | 2021-07-13 | 河南省远基岩土工程有限公司 | Foundation pit deepening reinforcement support body |
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| KR100376590B1 (en) * | 1999-10-30 | 2003-03-17 | 삼성중공업 주식회사 | Multi-phased underground construction method for wide excavation using permanent structural members as temporary struts |
| CN203256751U (en) * | 2013-05-22 | 2013-10-30 | 中国建筑第八工程局有限公司 | Deep foundation pit supporting structure for soft soil foundation |
| CN103806449A (en) * | 2014-02-17 | 2014-05-21 | 中交公路规划设计院有限公司 | Supporting structure of foundation pit |
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2016
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| KR100376590B1 (en) * | 1999-10-30 | 2003-03-17 | 삼성중공업 주식회사 | Multi-phased underground construction method for wide excavation using permanent structural members as temporary struts |
| CN203256751U (en) * | 2013-05-22 | 2013-10-30 | 中国建筑第八工程局有限公司 | Deep foundation pit supporting structure for soft soil foundation |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107761742A (en) * | 2017-10-23 | 2018-03-06 | 上海市城市建设设计研究总院（集团）有限公司 | Along depth direction is multi-form, variable cross-section supporting construction and its construction method |
| CN110093926A (en) * | 2018-01-31 | 2019-08-06 | 中国二十冶集团有限公司 | Newly, the old foundation pit system combined and its construction method |
| CN108951640A (en) * | 2018-07-02 | 2018-12-07 | 上海建工集团股份有限公司 | A kind of Extra-Deep Foundation Pit construction method |
| CN113006109A (en) * | 2021-03-02 | 2021-06-22 | 北京住总第一开发建设有限公司 | Construction method of foundation pit waterproof curtain of strongly permeable stratum area |
| CN113006109B (en) * | 2021-03-02 | 2022-09-09 | 北京住总第一开发建设有限公司 | Construction method of waterproof curtain of foundation pit of highly permeable stratum area |
| CN113106981A (en) * | 2021-03-31 | 2021-07-13 | 河南省远基岩土工程有限公司 | Foundation pit deepening reinforcement support body |
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Application publication date: 20170308 |
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