CN103114576A - Post grouting construction method for cast-in-place concrete pile - Google Patents
Post grouting construction method for cast-in-place concrete pile Download PDFInfo
- Publication number
- CN103114576A CN103114576A CN2013100450371A CN201310045037A CN103114576A CN 103114576 A CN103114576 A CN 103114576A CN 2013100450371 A CN2013100450371 A CN 2013100450371A CN 201310045037 A CN201310045037 A CN 201310045037A CN 103114576 A CN103114576 A CN 103114576A
- Authority
- CN
- China
- Prior art keywords
- pile
- grouting
- cast
- place concrete
- concrete pile
- 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.)
- Pending
Links
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to a cast-in-place concrete pile, in particular to a post grouting construction method for the cast-in-place concrete pile. The post grouting construction method for the cast-in-place concrete pile solves the problem that according to a prior post grouting construction method for the cast-in-place concrete pile, bearing force of the cast-in-place concrete pile can not reach a construction standard. The post grouting construction method for the cast-in-place concrete pile comprises the following steps that a hole is drilled in a rotationally excavating mode; a reinforcing steel bar cage with a post grouting device is installed in an excavated pile hole; the post grouting construction device comprises two upper longitudinal grouting pipes with lower ends placed on the upper portion of the reinforcing steel bar cage, two middle longitudinal grouting pipes with lower ends placed in the middle portion of the reinforcing steel bar cage, two lower longitudinal grouting pipes with lower ends placed on the lower portion of the reinforcing steel bar cage, the six longitudinal grouting pipes are all evenly fixed at the outer side of the reinforcing steel bar cage and each two of the longitudinal grouting pipes are arranged opposite to each other; pile body concrete is casted; post grouting is performed; a loop is opened; fresh water is infused in a pressing mode in 10-15 minutes; and pile top grouting, pipe end grouting and pile side grouting are performed. According to the post grouting construction method for the cast-in-place concrete pile, quality stability of the pile is strengthened and the method is suitable for being widely used in post grouting construction of the cast-in-place concrete pile.
Description
Technical field
The present invention relates to cast-in-place concrete pile, be specially a kind of rear mud jacking construction method for castinplace pile.
Background technology
In recent years, also more and more higher to the requirement of various construction foundation bearing capacities along with the high speed development of Building Trade in China, foundation treatment engineering generally adopted foundation of concrete perfusion piles.The problem that adopts cast-in-place concrete pile to exist in foundation treatment engineering: the first, make the cost of under ground portion account for very large ratio in whole construction costs; The second, caused very large difficulty to work progress; Three, the conventional borehole castinplace pile is difficult to thoroughly solve the chronic disease of mud cake around pile and sediment, and its advantage is not in full use.Filling pile ' s after grouting is the ancillary technique of castinplace pile.This technology is intended to solidify sediment (loosened soil) and mud skin by stake rear flank mud jacking at the bottom of stake, and at the bottom of reinforcing pile and the soil body of stake Zhou Yiding scope, significantly to improve the bearing capacity of stake, strengthens quality of pile stable, reduces pile foundation settlement.But after existing, the job practices of mud jacking, can't guarantee that the slip casting of each bearing stratum reaches the expection standard of construction, makes pouring pile bearing capacity not reach construction reference; And need a lot of root Grouting Pipe, and making rear squeezing unit complex structure, speed of application is slow.
Summary of the invention
The present invention makes pouring pile bearing capacity not reach the problem of construction reference in order to solve the existing rear mud jacking construction method that is used for cast-in-place concrete pile, and a kind of rear mud jacking construction method for cast-in-place concrete pile is provided.
The present invention adopts following technical scheme to realize: a kind of rear mud jacking construction method for cast-in-place concrete pile comprises the steps:
(1) (rotary digging drilling hole is to well known to a person skilled in the art technology to rotary digging drilling hole, usually adopt following method: cut the soil body by the bucket tooth at the bottom of cylinder with hosqe bit under the driving of Spiral digging machine drilling rod, and will cut the lower soil body and rotate in the cylinder of packing into, then propose the aperture by drilling rod, so repeatedly complete bore operation);
(2) lay reinforcing cage and rear squeezing unit: lay the reinforcing cage with rear squeezing unit in a hole of digging; Described rear squeezing unit comprises that two upper vertical Grouting Pipe, lower ends that the lower end is arranged in reinforcing cage top are positioned at two vertical Grouting Pipe at reinforcing cage middle part and lower end and are positioned at vertical Grouting Pipe under two of reinforcing cage bottom, and six vertical Grouting Pipe evenly are fixed in outside reinforcing cage and are relative in twos; The upper end of the vertical Grouting Pipe in upper, middle and lower is with the plug shutoff and the lower end all is connected with the mesh pipe by one way valve, and the plug shutoff of the other end of mesh pipe is sealed with adhesive tape on the outer wall of mesh pipe and twined;
(3) build pile concrete (building the technology that pile concrete is known to the skilled person);
(4) mud jacking after: build when pile concrete and begin rear mud jacking operation after completing 2-30 days, it comprises following process: (open loop refers to that the plug of opening vertical Grouting Pipe upper end, upper, middle and lower connects with the high pressure clear water in open loop, make the mesh Kaifeng on the mesh pipe, guarantee cement paste pressure pile side and stake end, the technology that is known to the skilled person); The clear water of pressure injection 10-15 minute is again washed the gap between the mesh of a side mud skin and stake sidewall and mesh pipe open; Then begin in the following order the mud jacking operation: stake top mud jacking, pile tip grouting, stake side pressure grouting (when being slip casting first to upper vertical Grouting Pipe slip casting, then to lower vertical Grouting Pipe slip casting, the then vertical Grouting Pipe slip casting of centering).
The present invention only adopts six roots of sensation Grouting Pipe, and rear squeezing unit is simple in structure, cost is low, and simple installation has improved speed of application 3-5 doubly; Adopt the rear mud jacking of a top mud jacking, pile tip grouting, stake side pressure grouting sequentially to solidify sediment (loosened soil) and mud skin, and reinforced contacting of stake side opening wall and pile body, the slurries uniform pressure pile side that can solidify by the Grouting Pipe that is embedded in pile body or stake bottom layer, make end resistance and pile side friction obtain in various degree raising, the sedimentation of castinplace pile is reduced, make the bearing capacity of stake improve 20-50%, significantly improve the bearing capacity of stake, strengthen quality of pile stability, meet construction reference fully; Solve the existing rear mud jacking construction method that is used for cast-in-place concrete pile and made pouring pile bearing capacity not reach the problem of construction reference, can be widely used in the rear mud jacking construction of cast-in-place concrete pile.
The specific embodiment
A kind of rear mud jacking construction method for cast-in-place concrete pile is characterized in that: comprise the steps:
(1) rotary digging drilling hole;
(2) lay reinforcing cage and rear squeezing unit: lay the reinforcing cage with rear squeezing unit in a hole of digging; Described rear squeezing unit comprises that two upper vertical Grouting Pipe, lower ends that the lower end is arranged in reinforcing cage top are positioned at two vertical Grouting Pipe at reinforcing cage middle part and lower end and are positioned at vertical Grouting Pipe under two of reinforcing cage bottom, and six vertical Grouting Pipe evenly are fixed in outside reinforcing cage and are relative in twos; The upper end of the vertical Grouting Pipe in upper, middle and lower is with the plug shutoff and the lower end all is connected with the mesh pipe by one way valve, and the plug shutoff of the other end of mesh pipe is sealed with adhesive tape on the outer wall of mesh pipe and twined;
(3) build pile concrete;
(4) mud jacking after: build when pile concrete and complete 2-30(2 days, 10 days, 16 days, 22 days, 30 days) begin rear mud jacking operation behind the sky, it comprises following process: open loop; The clear water of pressure injection 10-15 minute again (10 minutes, 12 minutes, 13 minutes, 14 minutes, 15 minutes) is washed the gap between the mesh of a side mud skin and stake sidewall and mesh pipe open; Then begin in the following order the mud jacking operation: a top mud jacking, pile tip grouting, stake side pressure grouting.
Claims (1)
1. a rear mud jacking construction method that is used for cast-in-place concrete pile, is characterized in that: comprise the steps:
(1) rotary digging drilling hole;
(2) lay reinforcing cage and rear squeezing unit: lay the reinforcing cage with rear squeezing unit in a hole of digging; Described rear squeezing unit comprises that two upper vertical Grouting Pipe, lower ends that the lower end is arranged in reinforcing cage top are positioned at two vertical Grouting Pipe at reinforcing cage middle part and lower end and are positioned at vertical Grouting Pipe under two of reinforcing cage bottom, and six vertical Grouting Pipe evenly are fixed in outside reinforcing cage and are relative in twos; The upper end of the vertical Grouting Pipe in upper, middle and lower is with the plug shutoff and the lower end all is connected with the mesh pipe by one way valve, and the plug shutoff of the other end of mesh pipe is sealed with adhesive tape on the outer wall of mesh pipe and twined;
(3) build pile concrete;
(4) mud jacking after: build when pile concrete and begin rear mud jacking operation after completing 2-30 days, it comprises following process: open loop; The clear water of pressure injection 10-15 minute is again washed the gap between the mesh of a side mud skin and stake sidewall and mesh pipe open; Then begin in the following order the mud jacking operation: a top mud jacking, pile tip grouting, stake side pressure grouting.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2013100450371A CN103114576A (en) | 2013-02-05 | 2013-02-05 | Post grouting construction method for cast-in-place concrete pile |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2013100450371A CN103114576A (en) | 2013-02-05 | 2013-02-05 | Post grouting construction method for cast-in-place concrete pile |
Publications (1)
Publication Number | Publication Date |
---|---|
CN103114576A true CN103114576A (en) | 2013-05-22 |
Family
ID=48413001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2013100450371A Pending CN103114576A (en) | 2013-02-05 | 2013-02-05 | Post grouting construction method for cast-in-place concrete pile |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN103114576A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105239563A (en) * | 2015-10-27 | 2016-01-13 | 贵州开磷建设集团有限公司 | Dry-method hole forming filling pile structure for post-grouting matched rotary drilling rig and construction method |
CN108130903A (en) * | 2017-12-21 | 2018-06-08 | 广东省水利水电第三工程局有限公司 | A kind of bored concrete pile grouting behind shaft or drift lining construction technology |
CN110295591A (en) * | 2019-06-27 | 2019-10-01 | 深圳市工勘岩土集团有限公司 | Major diameter ultra-deep bored pile is layered grouting behind shaft or drift lining construction method |
CN110374092A (en) * | 2019-07-10 | 2019-10-25 | 江苏镇江路桥工程有限公司 | Grout pile end follow-up grouting device and its technique |
CN113006071A (en) * | 2021-02-02 | 2021-06-22 | 中铁大桥局集团第五工程有限公司 | Construction method for pouring concrete of small-angle inclined pile |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0641956A (en) * | 1990-12-27 | 1994-02-15 | Takenaka Komuten Co Ltd | Execution method for high proof stress cast-in-place concrete pile, etc. |
JP2000297429A (en) * | 1999-04-15 | 2000-10-24 | Toda Constr Co Ltd | Working method for cast-in-place concrete pile |
CN2425952Y (en) * | 1999-04-30 | 2001-04-04 | 中国第一冶金建设公司技术开发公司 | Mud-pressing, soil-retaining and water-stopping foundation pit supporting and mud-pressing apparatus after pile pouring |
CN1609347A (en) * | 2004-11-25 | 2005-04-27 | 河北建设勘察研究院有限公司 | Follow-up mud jacking rotary digging drilling hole bored concrete pile technology |
CN101333812A (en) * | 2008-08-04 | 2008-12-31 | 上海市基础工程公司 | Grouter for back side grouting and its construction method |
CN101812843A (en) * | 2010-04-20 | 2010-08-25 | 黑龙江省东煤建筑基础工程有限公司 | Centre grouted poured post-grouting pile construction methods, and grouter and grout injector used thereby |
CN201665871U (en) * | 2010-03-25 | 2010-12-08 | 北京中岩大地工程技术有限公司 | Long screw drilling bored pile post-grouting technology device |
CN102226340A (en) * | 2011-04-15 | 2011-10-26 | 中国一冶集团有限公司 | Construction method for rock-entering cast-in-situ bored piles with diameter of less than 1.5m |
CN202577307U (en) * | 2012-04-11 | 2012-12-05 | 沈阳中建东设岩土工程有限公司 | Post grouting device of pile foundation |
-
2013
- 2013-02-05 CN CN2013100450371A patent/CN103114576A/en active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0641956A (en) * | 1990-12-27 | 1994-02-15 | Takenaka Komuten Co Ltd | Execution method for high proof stress cast-in-place concrete pile, etc. |
JP2000297429A (en) * | 1999-04-15 | 2000-10-24 | Toda Constr Co Ltd | Working method for cast-in-place concrete pile |
CN2425952Y (en) * | 1999-04-30 | 2001-04-04 | 中国第一冶金建设公司技术开发公司 | Mud-pressing, soil-retaining and water-stopping foundation pit supporting and mud-pressing apparatus after pile pouring |
CN1609347A (en) * | 2004-11-25 | 2005-04-27 | 河北建设勘察研究院有限公司 | Follow-up mud jacking rotary digging drilling hole bored concrete pile technology |
CN101333812A (en) * | 2008-08-04 | 2008-12-31 | 上海市基础工程公司 | Grouter for back side grouting and its construction method |
CN201665871U (en) * | 2010-03-25 | 2010-12-08 | 北京中岩大地工程技术有限公司 | Long screw drilling bored pile post-grouting technology device |
CN101812843A (en) * | 2010-04-20 | 2010-08-25 | 黑龙江省东煤建筑基础工程有限公司 | Centre grouted poured post-grouting pile construction methods, and grouter and grout injector used thereby |
CN102226340A (en) * | 2011-04-15 | 2011-10-26 | 中国一冶集团有限公司 | Construction method for rock-entering cast-in-situ bored piles with diameter of less than 1.5m |
CN202577307U (en) * | 2012-04-11 | 2012-12-05 | 沈阳中建东设岩土工程有限公司 | Post grouting device of pile foundation |
Non-Patent Citations (3)
Title |
---|
《建筑施工手册》(第五版)编委会: "《建筑工程施工手册2第五版》", 31 December 2012, article ""灌注桩后注浆技术"" * |
中国土木工程学会: "《2012注册岩土工程师专业考试复习教程》", 31 May 2012, article ""灌注桩后注浆"" * |
陈建平: "泥浆护壁后压浆钻孔灌注桩施工技术", 《施工技术》, vol. 38, 31 December 2009 (2009-12-31), pages 112 - 113 * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105239563A (en) * | 2015-10-27 | 2016-01-13 | 贵州开磷建设集团有限公司 | Dry-method hole forming filling pile structure for post-grouting matched rotary drilling rig and construction method |
CN108130903A (en) * | 2017-12-21 | 2018-06-08 | 广东省水利水电第三工程局有限公司 | A kind of bored concrete pile grouting behind shaft or drift lining construction technology |
CN110295591A (en) * | 2019-06-27 | 2019-10-01 | 深圳市工勘岩土集团有限公司 | Major diameter ultra-deep bored pile is layered grouting behind shaft or drift lining construction method |
CN110374092A (en) * | 2019-07-10 | 2019-10-25 | 江苏镇江路桥工程有限公司 | Grout pile end follow-up grouting device and its technique |
CN110374092B (en) * | 2019-07-10 | 2021-08-13 | 江苏镇江路桥工程有限公司 | Pile end post-grouting device and process for cast-in-place pile |
CN113006071A (en) * | 2021-02-02 | 2021-06-22 | 中铁大桥局集团第五工程有限公司 | Construction method for pouring concrete of small-angle inclined pile |
CN113006071B (en) * | 2021-02-02 | 2022-06-21 | 中铁大桥局集团第五工程有限公司 | Construction method for pouring concrete in small-angle inclined pile |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104234055B (en) | A kind of prefabricated pile post-grouting device and technique thereof | |
CN101812843B (en) | Centre grouted poured post-grouting pile construction methods, and grouter and grout injector used thereby | |
CN103924987B (en) | A kind of SMW engineering method stake tunnel shielding portal seepage-proof structure and construction method thereof | |
CN105040775B (en) | Deep layer pressure-bearing artesian well plugging system and method | |
CN101812976B (en) | Adjustable multiple coil extruding and expanding drilling tool | |
CN103924602B (en) | Deep Thick Soft Ground foundation ditch construction method | |
CN104988907A (en) | Construction method of concrete pile | |
CN103114576A (en) | Post grouting construction method for cast-in-place concrete pile | |
CN204253056U (en) | A kind of shield machine export & import reinforcing structure | |
CN103452100A (en) | Construction method of post-grouting squeezing and expanding combination cast-in-place bored pile | |
CN107513995A (en) | A kind of bridge struction pile post grouting construction method | |
CN107386285A (en) | A kind of novel steel tube pile foundation rock borehole anchorage method | |
CN206052722U (en) | A kind of device of prestressed pipe post-pressure grouting | |
CN109487777A (en) | A method of a reinforcing deep soft soil foundation of filling the span of a man's arms is formed using slip casing by pressure | |
CN113431490A (en) | Large-diameter tubular pile construction equipment and method for karst area | |
CN208605162U (en) | A kind of shield tunnel geological prospecting borehole hole sealing structure | |
CN108756809A (en) | A kind of method for sealing of shield tunnel geological prospecting borehole | |
CN104563104B (en) | Pile work drilling machine is with coordinated type breast wall apparatus and use its construction method | |
CN203129151U (en) | Grouting head capable of drilling and grouting synchronously | |
CN105113492A (en) | Construction method of composite pile applicable to cohesive soil, sandy soil and muddy soil foundations | |
CN102979087B (en) | Construction method for rotary excavation pile | |
CN204608773U (en) | Pile work drilling machine coordinated type breast wall apparatus | |
CN208472716U (en) | Crack geology mortar leakage prevention drill-pouring pilework | |
CN203583501U (en) | Deep-layer shear resistant device capable of preventing rock sliding | |
CN207004431U (en) | Soft soil foundation exciting drilling device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C12 | Rejection of a patent application after its publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130522 |