CN101130980A - Method for clearing construction obstacle of cast-in-situ bored pile - Google Patents

Method for clearing construction obstacle of cast-in-situ bored pile Download PDF

Info

Publication number
CN101130980A
CN101130980A CNA200710119583XA CN200710119583A CN101130980A CN 101130980 A CN101130980 A CN 101130980A CN A200710119583X A CNA200710119583X A CN A200710119583XA CN 200710119583 A CN200710119583 A CN 200710119583A CN 101130980 A CN101130980 A CN 101130980A
Authority
CN
China
Prior art keywords
steel casing
beating
casing
vibrating hammer
steel
Prior art date
Application number
CNA200710119583XA
Other languages
Chinese (zh)
Other versions
CN100557144C (en
Inventor
孙彪
金传宏
Original Assignee
中国海洋石油总公司
中海油田服务股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 中国海洋石油总公司, 中海油田服务股份有限公司 filed Critical 中国海洋石油总公司
Priority to CNB200710119583XA priority Critical patent/CN100557144C/en
Publication of CN101130980A publication Critical patent/CN101130980A/en
Application granted granted Critical
Publication of CN100557144C publication Critical patent/CN100557144C/en

Links

Abstract

The process of eliminating construction obstruction of filling pile includes the following steps: 1. boring hole slightly larger than the designed pile; 2. setting steel pile casing with inner diameter 5-15 cm larger than that of the designed pile; 3. fixing one hammering substitute between the bottom of the vibrating hammer and the steel pile casing; 4. hammering the hammering substitute to descend the steel pile casing until the top side of the steel pile casing reaches the height 50-60 cm higher than the operation plane, and separating the hammering substitute from the steel pile casing; 5. butt jointing the next section of steel pile casing and repeating the said steps until reaching the designed depth; and 6. eliminating matter inside the steel pile casing and forming the filling pile.

Description

A kind of method of removing the bored pile construction obstacle
Technical field
The present invention relates to a kind ofly in the transformation process of harbour, remove the method for bored pile construction obstacle.
Background technology
Along with the high speed development of national economic development, the problem of whole nation industry, shipping business infrastructure scarce capacity exposes to such an extent that become increasingly conspicuous, and has seriously hindered the paces of economic high speed and sustainable development.In the infrastructure in China coastal port area, it is aging that ubiquity facility, and harbour face bearing capacity is not enough, can not satisfy the growing needs of cargo handling capacity, and these problems bring great resistance for the development of China's shipping interest.Though can invest to build the contradiction that new harbour relaxes this demand, have a lot of adverse factors: bankroll problem (investing huge); Construction period problem (from project verification, demonstration, to design, construction period is very long); Environmental factor (construction project is to the influence of surrounding environment) or the like.
Therefore, for addressing the above problem, in port infrastructure is in recent years built, often take terminal facilities is carried out the method that segmentation is transformed.Its advantage is: small investment instant effect (transform on the basis of existing facility, can make full use of the useful structure of old building, thereby cost is low, the duration lacks) can guarantee investor's interests.Therefore, in this class engineering, some new technologies, new technology continue to bring out.Some workmanshiies are guaranteed, construction safety, reliable, and construction costs is reasonable, the construction technology and the measure of saving, more and more is subjected to the attention of the parties concerned.
At present, in China's long piled wharf improvement project, because the structure of harbour causes inevitably running into huge thick rock mound, for bored pile construction, must find simple, fast processing method to remove these obstacles on the stake position, guarantee construction safety, efficiently carry out.Traditional handicraft often adopts the construction processing scheme of heavy excavation, because excavation inevitably causes the surrounding soil passive resistance to reduce, soil body unstability produces the landslide and make all round, the lighter causes surrounding piles plinth inclination and distortion, produces potential safety hazard, weight person's pile foundation is sheared destruction, harbour (or surrounding buildings thing) collapses, and causes great security incident.Therefore before scheme implementation, not only need to carry out the necessary security demonstration, and must reinforce the soil body around the excavation area, the variation of necessary precision monitor surrounding soil situation in construction simultaneously, in case note abnormalities, must stop excavation, and take the measure of setting each other off further the soil body on every side to be carried out consolidation process.And to remove the harbour cover plate earlier before the construction, after excavation is finished, the erection construction platform.Therefore, exist huge construction safety risk; Operation increases, and efficient reduces greatly; The input of upkeep operation safety is very big.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method that periphery is influenced little and the removing bored pile construction obstacle that efficient is very high.
A kind of method of removing the bored pile construction obstacle of the present invention comprises the steps:
A) on wharf slab, offer than the hole of designing the stake slightly larger in diameter, as the heavy vertically-guided of establishing of control steel casing;
B) put into the steel casing in the above-mentioned stake hole of offering, steel casing internal diameter is than designing about the big 5~15cm in stake footpath;
C) fixing replacing of a connection steel casing and vibrating hammer in the vibrating hammer bottom beats;
D) the steel casing is sunk establish, when the top of steel casing exceeds the scope of operation 50~60cm, stop hammering, will separate for beating by vibrating hammer vibration hammering for beating with the steel casing;
E) carry out the butt joint of partial node steel casing as required, repeat above-mentioned connection and heavy step of establishing after butt joint is finished again, sink to preposition until the steel casing;
F) will separate for beating, remove the obstruction in the steel casing, carry out bored pile then with the steel casing.
Preferably, described for the packing draw together upper end and bottom, the bottom can be inserted in the described steel casing, the upper end is used for fixing described vibrating hammer.
Preferably, described is about 60cm for the height of beating, and described height for the bottom of beating is about 30cm.
The present invention has following advantage:
1) to the minimum that influences of original old structure.Because this technology is just handled at point (stake position) one by one, and is therefore little to the influence of peripheral structure thing;
2) expense is low.Because this technology does not damage original rock mound and original old structure, therefore just do not recover the expense of these structures;
3) penetration power is strong.Can penetrate 12 meters thick riprap layers;
4) efficiency of construction height.A plurality of points can carry out simultaneously, thereby have improved processing speed greatly.
Description of drawings
Fig. 1 is the invention process schematic diagram.
The specific embodiment
As shown in Figure 1, specific implementation method of the present invention comprises the steps:
A) at first use the pneumatic pick perforate according to the stake position of putting well on wharf slab 6, opening diameter as steel casing 4 heavy guiding of establishing, is controlled its verticality than designing about the big 15cm in stake footpath;
B) in the above-mentioned stake hole of offering, put into steel casing 4, steel casing 4 generally adopts to connect more than or equal to the thick roll of steel plate pressure welding of 8mm and forms, the casing internal diameter is than the design stake big 5~15cm in footpath, can make by merogenesis, first joint length generally than the scope of operation to the height of mud face have more 2~3 meters (if oversize, wayward verticality during hammering.For example: the scope of operation is 5 meters to the height of mud face, then first joint length is controlled at 7~8 meters and is advisable), steel casing 4 bases add the reinforcement steel plate guard ring of the thick 8mm of the wide 200mm of weldering, and do tough angle in the bottom side and (guarantee that steel casing 4 is at the heavy not crimping of establishing in the process of vibration, strengthen its penetration power simultaneously), all the other respectively save length should not be greater than 4 meters, and the total length fibrous root determines according to the geological condition of job location, and the bottom of general steel casing 4 should enter clay or silty clay more than 1 meter.(length overall is 19 meters in the present embodiment).
C) after steel casing 4 inserts the stake hole, subsequently steel casing 4 is adjusted, to guarantee that it is within deviation (comprising pile position deviation and the perpendicularity deviation) scope that allows, 20 * 30cm timber wedge 3 filled in the slit between the hole of being opened on steel casing 4 and the wharf slab 6, and jam-packed, do not change to guarantee steel casing 4 heavy position and verticality of establishing in the process.
D) will be fixed with for making a call to 2 vibrating hammer 1 with crane and sling, and will be inserted in the steel casing 4 for making a call to 2.Be mainly used in connection vibrating hammer 1 and steel casing 4 for making a call to 2, be made of upper end 21 and bottom 22 for making a call to 2, for making a call to about 2 high 60cm, its bottom 22 is the steel cylinder (external diameter is slightly less than the internal diameter of steel casing 4) about high 30cm, can insert in the steel casing 4, play the guide-localization effect; Its upper end 21 is thick than the bottom, can adopt bolt to be connected and fixed between itself and the vibrating hammer 1.Replace and make a call in the 22 insertion steel casings 4 of 2 bottoms, fix with the top of steel casing 4 and for bottom 22 welding of making a call to 2.
E) open vibrating hammer 1, first joint steel casing 4 is sunk in vibrating hammer 1 hammering, heavy establishing in the process, the sling hook 5 of vibrating hammer 1 of crane should keep slightly lax and state that do not break off relations, to monitor the position and the verticality of steel casing 4 simultaneously, as not satisfying the deviation requirement, stop proceeding after hammer is adjusted, when the top that head saves steel casing 4 exceeds the scope of operation 50~60cm (be convenient to next step sever between casing and casing dock weld job), stop hammering, sever for making a call to 2 and the welding position of steel casing 4 with gas welding;
F) hang out for making a call to 2 and vibrating hammer 1, carry out the butt joint of partial node steel casing 4 then as required, repeat the above-mentioned connection and the step of establishing of sinking after butt joint is finished again, till head saves steel casing 4 and sinks to preposition.
G) sever for making a call to 2 and the attachment weld of 4 of casings, will for make a call to 2 and vibrating hammer 1 hang, with dashing obstruction such as the removing steel casing 4 interior rubbles of grabbing bucket, just can carry out Bored Pile Construction then.
Above-mentioned power-equipment is generally selected more powerful vibrating hammer 1 for use, as 90 hammers or 80 hammers.
This technology can be widely used in the pile foundation engineering (bored pile of improvement project of the long piled wharf of coastal subgrade, steel pipe pile, steel sheet pile), also can be applicable among the new harbour pile foundation engineering construction, the pile extension that also can be applicable to the underground broken pile of shallow-layer is handled, and has positive dissemination.

Claims (3)

1. a method of removing the bored pile construction obstacle is characterized in that, comprises the steps:
A) on wharf slab, offer than the hole of designing the stake slightly larger in diameter, as the heavy vertically-guided of establishing of control steel casing;
B) put into the steel casing in the above-mentioned stake hole of offering, steel casing internal diameter is than designing about the big 5~15cm in stake footpath;
C) fixing replacing of a connection steel casing and vibrating hammer in the vibrating hammer bottom beats;
D) the steel casing is sunk establish, when the top of steel casing exceeds the scope of operation 50~60cm, stop hammering, will separate for beating by vibrating hammer vibration hammering for beating with the steel casing;
E) carry out the butt joint of partial node steel casing as required, repeat above-mentioned connection and heavy step of establishing after butt joint is finished again, sink to preposition until the steel casing;
F) will separate for beating, remove the obstruction in the steel casing, carry out bored pile then with the steel casing.
2. the method for claim 1 is characterized in that, described for the packing draw together upper end and bottom, the bottom can be inserted in the described steel casing, the upper end is used for fixing described vibrating hammer.
3. method as claimed in claim 2 is characterized in that, described is about 60cm for the height of beating, and described height for the bottom of beating is about 30cm.
CNB200710119583XA 2007-07-26 2007-07-26 A kind of method of removing the bored pile construction obstacle CN100557144C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB200710119583XA CN100557144C (en) 2007-07-26 2007-07-26 A kind of method of removing the bored pile construction obstacle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB200710119583XA CN100557144C (en) 2007-07-26 2007-07-26 A kind of method of removing the bored pile construction obstacle

Publications (2)

Publication Number Publication Date
CN101130980A true CN101130980A (en) 2008-02-27
CN100557144C CN100557144C (en) 2009-11-04

Family

ID=39128379

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB200710119583XA CN100557144C (en) 2007-07-26 2007-07-26 A kind of method of removing the bored pile construction obstacle

Country Status (1)

Country Link
CN (1) CN100557144C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105155516A (en) * 2015-08-14 2015-12-16 江苏省华建建设股份有限公司 Method for constructing cast-in-situ bored pile before comprehensively removing underground barriers
CN109208594A (en) * 2018-08-29 2019-01-15 中铁大桥局集团有限公司 Processing method, steel pile casting structure and the drilled pile of sinking steel protecting canister chance boulder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105155516A (en) * 2015-08-14 2015-12-16 江苏省华建建设股份有限公司 Method for constructing cast-in-situ bored pile before comprehensively removing underground barriers
CN105155516B (en) * 2015-08-14 2016-11-30 江苏省华建建设股份有限公司 The method of construction drill bored concrete pile before making an overall screening underground obstacle
CN109208594A (en) * 2018-08-29 2019-01-15 中铁大桥局集团有限公司 Processing method, steel pile casting structure and the drilled pile of sinking steel protecting canister chance boulder

Also Published As

Publication number Publication date
CN100557144C (en) 2009-11-04

Similar Documents

Publication Publication Date Title
Tomlinson et al. Pile design and construction practice
CN100465386C (en) Pile-anchor foundation ditch supporting construction method
US8221034B2 (en) Methods of providing a support column
Hobst et al. Anchoring in rock and soil
EP2837554A1 (en) Partially floating marine platform for offshore wind-power, bridges and marine buildings, and construction method
Viggiani et al. Piles and pile foundations
CN1265062C (en) Construction for making piles and tools
Fleming et al. Piling engineering
CN106120839B (en) A kind of construction technology of off-lying sea blower foundation embedded rock pile
CN100572683C (en) The large-diameter ultra-deep rock borehole bottom-expanding filling pile job practices
KR100758113B1 (en) Cast-in-place large diameter piling method by casing rotator in underwater rock conditions
CN102864946B (en) Process for supporting existing buildings through structural steel and horizontal rachel rod member and additionally adding multilayer basement
CN103321260B (en) Interval boring cuts stake inclination correction method
CN103195058B (en) Be convenient to solution cavity and grow the method that regional bridge pier adopts many casings to construct
CN102720186B (en) Underwater once pouring method for variable cross-section bored cast-in-place pile
CN104947690B (en) Grooving construction method for embedding underground continuous wall into rock
CN109630015A (en) A kind of friction pile mechanical hole building method
CN102505704A (en) Large open caisson construction method in soft geological shaft
CN204199335U (en) A kind of pressure release well reducing PHC tube pile construction soil compaction effect
CN102644275A (en) Rotary-digging combined pile-forming construction method in complicated geological conditions
Zotsenko et al. Innovative solutions in the field of geotechnical construction and coastal geotechnical engineering under difficult engineering-geological conditions of Ukraine
Allenby et al. Examples of open caisson sinking in Scotland
CN1837506A (en) Construction method for excavating box-shape structure over an operating tunnel
CN109487807B (en) Steel pipe pile cofferdam hole leading and replacement construction method
KR101211811B1 (en) Cast in concrete pile With precast type Caisson

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model
CP01 Change in the name or title of a patent holder

Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing

Co-patentee after: China Oilfield Services Limited

Patentee after: China Offshore Oil Group Co., Ltd.

Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing

Co-patentee before: China Oilfield Services Limited

Patentee before: China National Offshore Oil Corporation

CP01 Change in the name or title of a patent holder