CN103132530A - Guard relay pile construction method under land and rock combination geological conditions - Google Patents
Guard relay pile construction method under land and rock combination geological conditions Download PDFInfo
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- CN103132530A CN103132530A CN2011103870900A CN201110387090A CN103132530A CN 103132530 A CN103132530 A CN 103132530A CN 2011103870900 A CN2011103870900 A CN 2011103870900A CN 201110387090 A CN201110387090 A CN 201110387090A CN 103132530 A CN103132530 A CN 103132530A
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Abstract
The invention discloses a guarding relay pile construction method under land and rock combination geological conditions. The method includes that firstly, the length and the reinforcement of a first row of piles are confirmed according to a geological exploration report rock stratum height line chart of land and rock combination geological conditions; secondly, part zones are checked at the position that a foundation pit is excavated to pile bottom elevation until to one meter away from pile bottom elevation, wherein rock stratum is not exposed in the part zones; thirdly, after the part zones are checked, the first row of piles is vacated for adding a row of bored concrete piles at the position that relay piles are needed to construct; fourthly, a circle of enclosing purlins are arranged on pile heads of the relay piles, the enclosing purlins are abutted against the first row of piles, and gaps are filled by fine aggregate concrete; finally, a support is added on a ring beam position and is used for solidifying the front relay piles and the back relay piles. The guarding relay pile construction method under the land and rock combination geological conditions can reduce difficulty of design and construction and is suitable for land and rock combination geological conditions in coastal regions. The relay piles can reduce the lengths of piles effectively. The problem that verticality is difficult to control under the land and rock combination geological conditions is solved. After the excavation is conducted to the bottoms of the first row of piles, large area excavation can proceed. Space is only needed to leave at part zone positions to construct the relay piles. Construction period is saved.
Description
Technical field
The present invention relates to a kind of for coastal area Tu Yan in conjunction with the fender post job practices under geological conditions.
Background technology
In the coastal area, the sea terrestrial facies replace under geological conditions, bedrock surface rises and falls very large, adopt conventional single bored pile as going along with sb. to guard him form, the determining of the static parameter of holing has difficulties, the discrete type of geological prospecting is difficult to also that the stake of each pile is long determines the foundation that provides conclusive, and this also can affect Force Calculation and the Reinforcement Design of fender post greatly.The long long very difficult assurance verticality of stake requirement also is unfavorable for the whole cycle of constructing.
For this situation, carried out special design in conjunction with this type of situation that runs in three nuclear power station project construction processes, proposed to go along with sb. to guard him the method for designing of relay stake.Three nuclear power first stage of the project are that China introduces third generation compressed water reactor nuclear power technology autonomy-oriented Project Cooperation, and the construction project to be built geological conditions is multiple, and the upper strata is the backfill ragstone layer, and lower floor is tuff and sandstone, and whole rock stratum rises and falls very large, the most shallow crop out, the darkest 20m that reaches.Especially in 1# siphonic water-collecting well zone, violent rock stratum fluctuating all brings very large difficulty to stake end absolute altitude and the Reinforcement Design of bored pile.Therefore by going along with sb. to guard him the design of relay stake, solve this difficulty, save the duration.
Summary of the invention
The present invention will provide a kind of Tu Yan in conjunction with going along with sb. to guard him relay pile construction method under geological conditions, is used for solving Tu Yan and rises and falls greatly in conjunction with regional rock stratum, goes along with sb. to guard him the technical problem of constructional difficulties.
For achieving the above object, technical scheme of the present invention is: a kind of Tu Yan is in conjunction with going along with sb. to guard him relay pile construction method under geological conditions, concrete steps are as follows:
1) survey the high line chart in report rock stratum according to Tu Yan in conjunction with the ground of geology and determine first campshed length and arrangement of reinforcement;
2) at excavation of foundation pit to stake end absolute altitude apart from the position of 1m, for the rock stratum not yet the partial section of exposure investigate;
3) after the investigation, for the position of needs construction relay stake, vacate first campshed 500mm clear distance and set up row's castinplace pile;
4) the relay pile head arranges a corral purlin, encloses purlin near first campshed, fills with pea gravel concreten in the space;
5) add one support at the collar tie beam position, be used for the relay stake of fixed front and back.
The invention has the beneficial effects as follows:
1, in the situation that the position separation that bedrock relief is large of the average buried depth of bedrock of consideration has reduced the design and construction difficulty, be specially adapted to coastal area Tu Yan in conjunction with geological conditions;
2, it is long that the relay stake effectively reduces stake, reduced verticality problem rambunctious under such geological conditions;
3, after at the bottom of being excavated to first campshed, can proceed dig on a wide area, only need to have saved the duration in local location slot milling construction relay stake;
4, form pin joint by enclosing purlin, support system between the relay stake, the safety of campsheds before and after having guaranteed.
Description of drawings
Fig. 1 is working drawing of the present invention;
Fig. 2 is along the sectional view of A-A in Fig. 1.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and embodiment.
As Fig. 1, shown in 2, Tu Yan of the present invention is in conjunction with going along with sb. to guard him relay pile construction method under geological conditions, and concrete steps are as follows:
1) survey the high line chart in report rock stratum according to Tu Yan in conjunction with the ground of geology and determine first campshed 1 length and arrangement of reinforcement;
2) at excavation of foundation pit to stake end absolute altitude apart from the position of 1m, for the rock stratum not yet the partial section of exposure investigate;
3) after the investigation, for the position of needs construction relay stake 2, vacate first campshed 1, the 500mm clear distance is set up row's castinplace pile;
4) relay stake 2 pile crowns arrange a corral purlin, enclose purlin near first campshed 1, fill with pea gravel concreten in the space;
5) add one at the collar tie beam position and support the 4(anchor pole) be used for fixed front and back relay stake 2, make its stress performance reasonable.
Claims (1)
1. a Tu Yan in conjunction with going along with sb. to guard him relay pile construction method under geological conditions, is characterized in that, concrete steps are as follows:
1) survey the high line chart in report rock stratum according to Tu Yan in conjunction with the ground of geology and determine first campshed (1) length and arrangement of reinforcement;
2) at excavation of foundation pit to stake end absolute altitude apart from the position of 1m, for the rock stratum not yet the partial section of exposure investigate;
3) after the investigation, for the position of needs construction relay stakes (2), vacate first campshed 1, set up row's castinplace pile at the 500mm clear distance;
4) relay stake (2) pile crown arranges a corral purlin, encloses purlin near first campshed (1), fills with pea gravel concreten in the space;
5) add one support (3) at the collar tie beam position, be used for fixed front and back relay stakes (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110387090.0A CN103132530B (en) | 2011-11-29 | 2011-11-29 | Tu Yan is in conjunction with the construction method of guard relay pile under geological conditions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110387090.0A CN103132530B (en) | 2011-11-29 | 2011-11-29 | Tu Yan is in conjunction with the construction method of guard relay pile under geological conditions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103132530A true CN103132530A (en) | 2013-06-05 |
| CN103132530B CN103132530B (en) | 2015-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110387090.0A Active CN103132530B (en) | 2011-11-29 | 2011-11-29 | Tu Yan is in conjunction with the construction method of guard relay pile under geological conditions |
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| CN (1) | CN103132530B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107012874A (en) * | 2017-05-07 | 2017-08-04 | 中铁十八局集团有限公司 | A kind of upper-soft lower-hard ground subway station building enclosure |
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| JPH11222861A (en) * | 1998-02-04 | 1999-08-17 | Shimizu Corp | Execution of retaining wall to existing banking and retaining wall executed by the same |
| CN1399040A (en) * | 2002-06-25 | 2003-02-26 | 孙学毅 | Deformation controlling method for ground-excavating engineering |
| CN1563605A (en) * | 2004-03-23 | 2005-01-12 | 孙学毅 | Constructing method for controlling deformation on ground excavated |
| JP2007270461A (en) * | 2006-03-30 | 2007-10-18 | Takenaka Komuten Co Ltd | Earth retaining method |
| JP4123058B2 (en) * | 2003-02-05 | 2008-07-23 | 株式会社大林組 | Construction method of wall structure with permanent anchor construction, Wall structure with permanent anchor construction |
| CN101250878A (en) * | 2008-03-11 | 2008-08-27 | 青建集团股份公司 | Method for supporting deep building pit using non bulit-in end pile anchor in combination with anchor slab wall |
| CN101408023A (en) * | 2008-11-11 | 2009-04-15 | 天津大学 | Method for supporting and protecting row pile pit |
| CN201801872U (en) * | 2010-07-30 | 2011-04-20 | 中铁四局集团第六工程有限公司 | Deep foundation pit excavated on corrode geology through combined support |
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2011
- 2011-11-29 CN CN201110387090.0A patent/CN103132530B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE885538A (en) * | 1979-10-03 | 1981-02-02 | Ashford Supplies Ltd | TEMPORARY DEDUCTION SYSTEM |
| JPH11222861A (en) * | 1998-02-04 | 1999-08-17 | Shimizu Corp | Execution of retaining wall to existing banking and retaining wall executed by the same |
| CN1399040A (en) * | 2002-06-25 | 2003-02-26 | 孙学毅 | Deformation controlling method for ground-excavating engineering |
| JP4123058B2 (en) * | 2003-02-05 | 2008-07-23 | 株式会社大林組 | Construction method of wall structure with permanent anchor construction, Wall structure with permanent anchor construction |
| CN1563605A (en) * | 2004-03-23 | 2005-01-12 | 孙学毅 | Constructing method for controlling deformation on ground excavated |
| JP2007270461A (en) * | 2006-03-30 | 2007-10-18 | Takenaka Komuten Co Ltd | Earth retaining method |
| CN101250878A (en) * | 2008-03-11 | 2008-08-27 | 青建集团股份公司 | Method for supporting deep building pit using non bulit-in end pile anchor in combination with anchor slab wall |
| CN101408023A (en) * | 2008-11-11 | 2009-04-15 | 天津大学 | Method for supporting and protecting row pile pit |
| CN201801872U (en) * | 2010-07-30 | 2011-04-20 | 中铁四局集团第六工程有限公司 | Deep foundation pit excavated on corrode geology through combined support |
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| 田增勇: ""深基坑围护桩施工偏位处理"", 《浙江建筑》, vol. 25, no. 1, 25 January 2008 (2008-01-25), pages 27 - 29 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107012874A (en) * | 2017-05-07 | 2017-08-04 | 中铁十八局集团有限公司 | A kind of upper-soft lower-hard ground subway station building enclosure |
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| CN103132530B (en) | 2015-10-14 |
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Address after: 200433 Yangpu District, Shanghai Star Road, No. 231 Applicant after: Shanghai Foundation Engineering Group Co., Ltd. Address before: 200433 Yangpu District, Shanghai Star Road, No. 231 Applicant before: Shanghai Foundation Engineering Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: SHANGHAI FOUNDATION ENGINEERING CO., LTD. TO: SHANGHAI FOUNDATION ENGINEERING GROUP CO., LTD. |
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