CN101886390B - All casing static pressure pile pulling technology in narrow space - Google Patents
All casing static pressure pile pulling technology in narrow space Download PDFInfo
- Publication number
- CN101886390B CN101886390B CN2010101992294A CN201010199229A CN101886390B CN 101886390 B CN101886390 B CN 101886390B CN 2010101992294 A CN2010101992294 A CN 2010101992294A CN 201010199229 A CN201010199229 A CN 201010199229A CN 101886390 B CN101886390 B CN 101886390B
- Authority
- CN
- China
- Prior art keywords
- pile
- jack
- ground
- steel
- pulling
- 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
Images
Abstract
The invention discloses an all casing static pressure pile pulling method in narrow space, comprising the following steps: 1) clearing away surface earthwork on the ground and showing a pile head, hardening the ground by 50cm of reinforced concrete as a work platform; 2) mounting ground steel structure reaction support, and fixing a jack on the reaction support; 3) hoisting a steel casing and pushing aiming at the pile center by using the jack, injecting high pressure water and high pressure bentonite slurry while pushing, clearing away the soil body between the pile and the casing, pushing the steel casing in segmentation; 4) when the steel casing is pushed below a bearing aquifer and the depth satisfies the shield tunnel to pass through, fixedly connecting the pile head steel bar and the jack, gradually applying force till the pile is broken; 5) hoisting a pile body, cutting off in segmentation and clearing away, till the pile body is fully hoisted; 6) connecting the jack and the steel casing, pulling put in segmentation, backfilling the earthwork while pulling out of the steel casing; and 7) injecting the slurry and compacting the soil by using a single tube jet-grouting drilling rig after fully pulling. The method of the invention can be applied to the construction environment with narrow area for a construction ground, have small influence to peripheral buildings, be safe and reliable and have low cost.
Description
Technical field
A kind of pile pulling method that the present invention relates to adopt in the technical field of civil engineering particularly relates to the method for the small space all casing static pressure pile pulling that adopts in the underground structure construction.
Background technology
Conventional both at home and abroad pile pulling case mainly concentrates on ground such as Shanghai, Guangzhou, Tianjin, and along with the continuous development of construction equipment, it is ripe that pile pulling technology also is tending towards gradually, mainly is divided into the broken stake of impact method and pulls out two kinds of methods with the anti-attrition of a complete set of pipe.These two kinds of pile pulling technologies mainly rely on all casing drill and goliath, so had relatively high expectations in the construction plant, the construction plant area generally is not less than 2000m
2And an overground part does not have the clear height restriction, and conventional pile pulling technology is difficult under this environment, effectively implement.
Summary of the invention
Technical problem to be solved by this invention is to overcome the difficult problem that conventional pile pulling technology can't be implemented in the small space, proposes a kind of the construction plant is required lower and do not receive the method for the small space all casing static pressure pile pulling of place clear height restriction.
For realizing above-mentioned purpose, the present invention has adopted following technical scheme:
A kind of method of small space all casing static pressure pile pulling, it may further comprise the steps:
1) removes the earthwork of top layer, ground pile crown is exposed, the thick steel concrete sclerosis of 50cm is carried out on ground, as working platform;
2) ground steel work reaction frame is installed, and jack is fixed on the reaction frame;
3) lifting steel sleeve align piles center adopts jack to press down, and with pressing with inject high pressure water and high pressure bentonite slurry, removes the soil body between stake and sleeve pipe, and the steel sleeve merogenesis presses down;
4) below steel sleeve presses to artesian aquifer and the degree of depth satisfy shield tunnel through the time, the pile crown reinforcing bar firmly is connected with jack, the application of force is until stake is pulled off gradually;
5) promote pile body, segmentation is cut off and is removed, and all proposes until pile body;
6) jack is connected with steel sleeve, extracts by joint, with pulling out steel sleeve with the backfill earthwork;
7) all pulling out the back adopts the single tube spinning-jet rig to spray the compacted soil body of slip casting in former stake position.
The present invention adopts greater than the steel sleeve in stake footpath and removes the frictional force between the pile body and the soil body; Providing counter-force to adopt hydraulic jack through existing stake is that steel sleeve is pressed into the soil body power is provided; Steel sleeve presses down in the process and reduces resistance through pipe end water under high pressure and bentonite slurry; Steel sleeve presses down the degree of depth must penetrate artesian aquifer, guarantees anhydrous operation in the pipe; After pile body is exposed, the pile crown reinforcing bar is linked to each other with jack, exposed pile body is pulled off or whole stake proposition by the jack application of force; Segmentation promotes pile body and segmentation is cut off.
Description of drawings
Fig. 1 is kind sea-bridge test pile and shield tunnel relativeness schematic cross-sectional view;
Fig. 2 is an all casing static pressure pile pulling preparation of construction sketch map, and wherein Fig. 2 a is a cross-sectional drawing, and Fig. 2 b is a skiagraph, and Fig. 2 c is a plan view.
Fig. 3 presses down sketch map for all casing static pressure pile pulling sleeve pipe, and wherein Fig. 3 a is a cross-sectional drawing, and Fig. 3 b is a skiagraph, and Fig. 3 c is a plan view.
Fig. 4 removes sketch map for all casing static pressure pile pulling test pile, and wherein Fig. 4 a is a cross-sectional drawing, and Fig. 4 b is a skiagraph, and Fig. 4 c is a plan view.
Fig. 5 pulls out sketch map for all casing static pressure pile pulling sleeve pipe, and wherein Fig. 5 a is a cross-sectional drawing, and Fig. 5 b is a skiagraph, and Fig. 5 c is a plan view.
Among the figure: 1-ground, 2-stake, 3-reaction frame, 4-jack, 5-steel sleeve.
The specific embodiment
Below in conjunction with accompanying drawing specific embodiment of the present invention is elaborated.
As shown in Figure 1; In the underground diameter line engineering engineering construction of western station, Tianjin to station, Tianjin; The major diameter slurry shield pusher side is worn kind sea-bridge, and the test pile of leaving in three bridge construction process is arranged under the bridge floor of west side, Haihe River, is respectively 1200,1 Φ 1000 deposited reinforced concrete pile of 2 Φ; The stake reach 64m, at the bottom of the bridge apart from ground 4.2m; Because this slurry shield machine adopts the weak soil cutterhead not possess cutting steel concrete ability, finishes so these three test piles must be removed before shield machine arrives.Shield machine diameter 11.97m, the earthing 20m of this place, it is below ground 33m that test pile is removed minimum-depth.Therefore how under this environment, existing pile pulling method can't effectively be implemented, at clear height only 4.2m, the not enough 1000m of site area
2And must guarantee existing bridge structure safe, not utilize that under the prerequisite of heavy mechanical equipment the test pile in the shield structure influence basin to be removed be the subject matter that present technique need solve.
Shown in Fig. 2-5, the present invention includes following steps
In the preparation of construction stage, carry out following step:
1. remove the earthwork on 1 top layer, ground pile crown is exposed, the thick steel concrete sclerosis of 50cm is carried out on ground 1, as working platform.
2. ground steel work reaction frame 3 is installed, and jack 4 is fixed on the reaction frame 3.
In the construction stage, carry out following step:
3. the center of lifting steel sleeve 5 align piles 2 adopts jack 4 to press down, and with pressing with inject high pressure water and high pressure bentonite slurry, removes stake 2 and 5 soil bodys of sleeve pipe, and steel sleeve 5 merogenesis press down.
When steel sleeve 5 press to below the artesian aquifer and the degree of depth satisfy shield tunnel through the time, the pile crown reinforcing bar firmly is connected with jack 4, the application of force is until stake 2 is pulled off gradually.
5. lifting pile body, segmentation cut off to be removed, and all proposes until pile body.
6. jack 4 is connected with steel sleeve 5, extracts by joint, with pulling out steel sleeve 5 with the backfill earthwork.
In the construction completion stage, carry out following step:
7. all pulling out the back adopts the single tube spinning-jet rig to spray the compacted soil body of slip casting in former stake position.
Claims (1)
1. the method for a small space all casing static pressure pile pulling is characterized in that, may further comprise the steps:
1) removes the earthwork of top layer, ground pile crown is exposed, the thick steel concrete sclerosis of 50cm is carried out on ground, as working platform;
2) ground steel work reaction frame is installed, and jack is fixed on the reaction frame;
3) lifting steel sleeve align piles center adopts jack to press down, and with pressing with inject high pressure water and high pressure bentonite slurry, removes the soil body between stake and sleeve pipe, and the steel sleeve merogenesis presses down;
4) below steel sleeve presses to artesian aquifer and the degree of depth satisfy shield tunnel through the time, the pile crown reinforcing bar firmly is connected with jack, the application of force is until stake is pulled off gradually;
5) promote pile body, segmentation is cut off and is removed, and all proposes until pile body;
6) jack is connected with steel sleeve, extracts by joint, with pulling out steel sleeve with the backfill earthwork;
7) all pulling out the back adopts the single tube spinning-jet rig to spray the compacted soil body of slip casting in former stake position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101992294A CN101886390B (en) | 2010-06-12 | 2010-06-12 | All casing static pressure pile pulling technology in narrow space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101992294A CN101886390B (en) | 2010-06-12 | 2010-06-12 | All casing static pressure pile pulling technology in narrow space |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101886390A CN101886390A (en) | 2010-11-17 |
| CN101886390B true CN101886390B (en) | 2012-06-27 |
Family
ID=43072467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101992294A Expired - Fee Related CN101886390B (en) | 2010-06-12 | 2010-06-12 | All casing static pressure pile pulling technology in narrow space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101886390B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485344A (en) * | 2013-09-17 | 2014-01-01 | 常熟理工学院 | Method for extracting construction engineering pile foundation |
| CN103556641A (en) * | 2013-10-09 | 2014-02-05 | 中铁十三局集团有限公司 | Grooving assisting method for in-pit underground diaphragm wall of existing basement |
| CN105625430B (en) * | 2014-12-26 | 2018-05-25 | 中国铁建大桥工程局集团有限公司 | A kind of narrow and small construction area high -pressure water cutting soil body pile extracting method |
| CN104532842B (en) * | 2015-01-29 | 2016-09-07 | 浙江省一建建设集团有限公司 | A kind of sleeve pipe revolution friction-type cutting-off method pile-pulling construction method |
| CN105544544A (en) * | 2015-12-16 | 2016-05-04 | 上海市城市建设设计研究总院 | Method for quickly extracting pile under low clearance condition |
| CN107338794A (en) * | 2016-12-26 | 2017-11-10 | 上海宝力通基础工程有限公司 | Static pile press pile pulling steel sleeve and pile extracting method |
| CN106968252B (en) * | 2017-04-01 | 2022-08-09 | 南京瑞迪建设科技有限公司 | Pile pulling recharging method and pile pulling recharging system |
| CN107023008B (en) * | 2017-04-01 | 2022-08-09 | 南京瑞迪建设科技有限公司 | Pile pulling method and system for open caisson platform for retaining wall and counterforce |
| CN108797590A (en) * | 2018-07-03 | 2018-11-13 | 南京工业大学 | A kind of device and operating method of removing obstacles stake |
| CN110409447A (en) * | 2019-07-31 | 2019-11-05 | 江苏省地质矿产局第三地质大队 | Device and method for pulling pile through existing bridge by shield |
| CN111254931B (en) * | 2020-01-17 | 2022-03-08 | 徐胜祥 | Construction method for rear concrete pile head fracture |
| CN115030159A (en) * | 2022-08-01 | 2022-09-09 | 江苏建研建设工程质量安全鉴定有限公司 | Device for pulling out obstacle pile and operation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2597549Y (en) * | 2003-02-21 | 2004-01-07 | 曹茂杰 | Split-type pile extractor |
| CN101173517A (en) * | 2006-10-31 | 2008-05-07 | 上海市基础工程公司 | Pile-pulling construction method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2096675A (en) * | 1981-04-10 | 1982-10-20 | Jet Research Center | Method of removing an inner conduit which is grouted in an outer conduit |
-
2010
- 2010-06-12 CN CN2010101992294A patent/CN101886390B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2597549Y (en) * | 2003-02-21 | 2004-01-07 | 曹茂杰 | Split-type pile extractor |
| CN101173517A (en) * | 2006-10-31 | 2008-05-07 | 上海市基础工程公司 | Pile-pulling construction method |
Non-Patent Citations (1)
| Title |
|---|
| 孙立宝等.套管钻进拔桩法及其工程应用.《探矿工程（岩土钻掘工程）》.2009,(第9期),1.2.1节. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101886390A (en) | 2010-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101886390B (en) | All casing static pressure pile pulling technology in narrow space | |
| CN106049532B (en) | A kind of pipe gallery open-cut branch blocking means and its construction method | |
| CN106437798B (en) | A kind of preprocess method of the anchor cable group across shield driving section | |
| CN101781991B (en) | Double-well type reinforcement method of shield arrival or starting end and double-well type shield arrival method | |
| CN103321244B (en) | Sand foundation existing building sets up the construction method of basement | |
| CN105041322A (en) | Method and system for reinforcing hole for push bench to go in and out | |
| CN108755698B (en) | Construction method for steep slope loose accumulation body large inclined rock surface foundation | |
| CN105239598A (en) | Integral sinking construction method for well-type full-automatic stereo garage | |
| CN110359540A (en) | A kind of shallow earthing Large Diameter Pipeline high water level wears the artificial jacking construction engineering method of existing road | |
| CN104818713A (en) | Profile steel cement soil pile construction method adaptive to various stratums | |
| CN105484751A (en) | Method for preventing large-section rectangular pipe-jacking tunnel from generating soil loading phenomenon | |
| CN204898672U (en) | Discard device of pulling out of pile foundation | |
| CN101838988A (en) | Comprehensive construction method for extracting anchor cable | |
| CN109339096A (en) | A kind of construction integrated constructing device of pipe gallery open cut precast assembly and its construction method | |
| CN105862862B (en) | A kind of large diameter pile buries hammer Refloatation method | |
| CN102587385A (en) | Foundation pit supporting method for sludge-exchanged and filled soft soil | |
| CN109610473A (en) | A kind of construction method of the large-scale pool structure foundation pit supporting system of municipal administration | |
| CN104975611A (en) | Sinking device and method for well point drawdown pipe of liquid soil layer | |
| CN109972644B (en) | Open caisson device for pushing and construction method thereof | |
| TW201200683A (en) | Static pressure implant method for precast retaining wall | |
| CN105040705A (en) | Ground foundation treatment construction technology under multi-karst-cave geological conditions | |
| CN203891047U (en) | Equipment equipped with steel platform for foundation construction of land bridge | |
| CN114033388B (en) | Shaft construction method for water-rich silty sand layer underground tunnel roof pipe | |
| CN204040042U (en) | A kind of super large ultra-deep support with manually dug piles structure | |
| CN207864776U (en) | A kind of jacking construction structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Chen Jian Document name: Notification of Publication of the Application for Invention |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120627 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |