CN101781894B - Steel pipe pile locking notch structure and water-stopping method of steel pipe pile cofferdam - Google Patents

Steel pipe pile locking notch structure and water-stopping method of steel pipe pile cofferdam Download PDF

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Publication number
CN101781894B
CN101781894B CN2009102276087A CN200910227608A CN101781894B CN 101781894 B CN101781894 B CN 101781894B CN 2009102276087 A CN2009102276087 A CN 2009102276087A CN 200910227608 A CN200910227608 A CN 200910227608A CN 101781894 B CN101781894 B CN 101781894B
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China
Prior art keywords
steel pipe
fore shaft
pipe pile
water
locking notch
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CN2009102276087A
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CN101781894A (en
Inventor
李艳哲
黄龙华
夏学军
李华强
沈金贵
袁晓红
纪宏庆
王鹤
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No1 Engineering Co Ltd Zhongtie Bridge Bureau Group
1st Engineering Co Ltd of MBEC
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No1 Engineering Co Ltd Zhongtie Bridge Bureau Group
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Abstract

The invention discloses a steel pipe pile locking notch structure and a water-stopping method of a steel pipe pile cofferdam by using the structure. The notch-locking structure comprises steel pipe piles and locking notches, wherein the steel pipe piles are arranged at intervals, each locking notch is arranged between two adjacent steel pipe piles, each locking notch comprises a female locking notch and a male locking notch, the male locking notch is I-shaped steel, the female locking notch is a steel pipe which is provided with a slit along the axial direction, and an I-shaped steel web plate is inserted into the slit. When the locking notch structure is used for leak stoppage, clay is pounded into the cavities of the locking notches, and reinforcing steel bars are inserted to carry out compaction processing for the clay. The invention relates to an effective locking notch structure and the water-stopping method thereof which are disclosed specially for solving the problem of difficult water prevention and leak stoppage of the locking notches in the steel pipe pile cofferdam.

Description

The water-stopping method of steel pipe pile locking notch structure and steel pipe pile cofferdam
Technical field
The present invention relates to a kind of locking notch structure of steel pipe pile cofferdam and the water-stopping method of steel pipe pile cofferdam.
Background technology
At present, for the not dark bridge bearing platform construction of water level, adopt the mode of steel pipe pile cofferdam more.Steel pipe pile cofferdam is applicable to various complicated geologicals, stratum, and advantages such as speed of application is fast, technology is simple, equipment needed thereby is few, rigidity of section is big, and interior support is few are arranged.But because fore shaft is more, most of waterproofing and leakage-stopping problem is difficulty very, and the waterproofing and leakage-stopping Research on ability that therefore improves fore shaft is of crucial importance.
Summary of the invention
The purpose of this invention is to provide a kind of a kind of very effective fore shaft combining structure that aims at the fore shaft waterproofing and leakage-stopping difficult problem in the solution steel pipe pile cofferdam and propose and the water-stopping method of steel pipe pile cofferdam.
For realizing above-mentioned purpose, the present invention adopts following technical scheme: a kind of steel pipe pile locking notch structure, comprise the steel pipe pile that is provided with at interval, and be provided with fore shaft between adjacent two steel pipe piles, fore shaft comprises cloudy fore shaft and positive fore shaft, said cloudy fore shaft and positive fore shaft elasticity are gripped and are closed; The front end of sun fore shaft is provided with water-resisting piece; Water-resisting piece props up cloudy fore shaft inwall, and and cloudy fore shaft inwall between form two independent water proof chambeies.
Water proof is filled with inserts in the chamber, and described inserts is fluid-tight clay.
Described cloudy fore shaft is for to be provided with round steel pipe or the square steel pipe that cracks vertically, and positive fore shaft is i iron or T-steel, and in the web of said i iron or T-steel inserted and cracks, said i iron or T-steel web closed with cracking to grip for elasticity.
Said i iron comprises web and is vertically located in upper and lower two frange plates at web two ends respectively; The top flange plate of i iron and the contained part web of steel pipe that cracked are formed water-resisting piece; The bottom wing listrium of i iron is positioned at outside the cloudy fore shaft steel pipe; Top flange plate props up the cloudy fore shaft steel pipe inwall of the offside that cracks, and bottom wing listrium and cloudy fore shaft steel pipe are welded in respectively between the two adjacent steel pile tubes.
In described two independent water proof chambeies, fill fluid-tight inserts, and in cavity, insert and beat strongly, fluid-tight inserts is carried out compacted processing.
The described waterproof inserts that fills is a clay.
Described slotting beat strong is bar reinforcement.
Beneficial effect of the present invention is:
(1) the fore shaft form that adopts steel pipe opening and i iron to interlock makes this fore shaft contact closely, and under equal section area condition, materials are most economical.Experiment showed, that this fore shaft form belongs to the strongest fore shaft compound mode of waterproof ability.
(2) width that cracks of steel pipe is less than the width of worker's steel web, guarantees that it clamps worker's steel; After the worker's steel and the steel pipe interlock of cracking, worker's steel will prop up the inwall of the offside that cracks, and guarantees that water route was the longest.
(3) the fore shaft inner filling material adopts clay and fiber crops, get into if any water, and the clay dilution, viscosity improves, and waterproof ability strengthens, and has strengthened the leak stopping ability in cofferdam; Fiber crops are mixed and stirred with clay simultaneously, and the adhesion stress of clay improves, and are not easy to be washed away by current, and material is very simple and easy on using, and also practices thrift construction cost widely.
(4) after employing clay and fiber crops etc. are filled completion in the fore shaft, in fore shaft, insert in the space and beat bar reinforcement, can guarantee that inserts is closely knit, also increased water route simultaneously, improve the sealing ability.
Steel pipe pile locking notch structure of the present invention is the enterprising row of this body structure of steel pipe pile cofferdam to be rationalized handle the interlock form that is best suited for using.Can improve the waterproofing and leakage-stopping ability in cofferdam greatly through the embodiment of the present invention constructure scheme, guarantee that construction safety goes on reliably.
Description of drawings
Fig. 1 is the structural representation of steel pipe pile cofferdam;
Fig. 2 is the partial enlarged drawing at A place among Fig. 1;
Fig. 3 is the structural representation of steel pipe pile cofferdam water-stopping method.
The specific embodiment
By a kind of steel pipe pile locking notch structure illustrated in figures 1 and 2; Comprise at interval setting and surround square steel pipe pile 1 in a row that be provided with fore shaft between adjacent two steel pipe piles 1, fore shaft is closely cooperated by cloudy fore shaft and positive fore shaft and forms; The sun fore shaft is an i iron 3; Cloudy fore shaft is for be provided with the steel pipe 2 that cracks vertically, and i iron 3 comprises web 5 and is vertically located in upper and lower two frange plate 4A, the 4B at web 5 two ends respectively, in i iron web 5 inserts and cracks; The width that steel pipe 2 cracks is less than the width of worker's steel web 5, and i iron web 5 is tight fit with cracking.Top flange plate 4A is positioned at cloudy fore shaft steel pipe 2 and props up cloudy fore shaft steel pipe 2 inwalls of the offside that cracks; The top flange plate 4A of i iron 3 and the steel pipe 2 contained part webs 5 that cracked are formed water-resisting piece; The bottom wing listrium 4B of i iron 3 is positioned at outside the cloudy fore shaft steel pipe 2; Form two independent water proof chambeies between water-resisting piece and cloudy fore shaft steel pipe 2 inwalls, all be filled with inserts 6 in the water proof chamber, inserts 6 is fluid-tight clay.Bottom wing listrium 4B and cloudy fore shaft steel pipe 2 are welded in respectively between the two adjacent steel pile tubes 1.
Steel pipe pile locking notch structure of the present invention is the enterprising row of this body structure of steel pipe pile cofferdam to be rationalized handle the interlock form that is best suited for using.Can improve the waterproofing and leakage-stopping ability in cofferdam greatly through the embodiment of the present invention constructure scheme, guarantee that construction safety goes on reliably.Certainly, steel pipe pile locking notch structure according to the invention is not limited to above-mentioned form, and cloudy fore shaft can use the tubing in arbitrary shape cross sections such as round steel pipe or square steel pipe, and positive fore shaft also can use the section bar of arbitrary form, such as: angle steel, T-steel etc.
Water-stopping method by Fig. 1 and steel pipe pile cofferdam shown in Figure 3 is provided with fore shaft between adjacent two steel pipe piles 1, and fore shaft is closely cooperated by cloudy fore shaft and positive fore shaft and forms; The sun fore shaft is an i iron 3, and i iron 3 has the top flange plate 4 of web 5 and web 5 front ends, and top flange plate 4 is a water-resisting piece; Cloudy fore shaft is for be provided with the steel pipe 2 that cracks vertically; In i iron web 5 inserted and cracks, the width that steel pipe 2 cracks was less than the width of worker's steel web 5, and i iron web 5 closes with cracking to grip for elasticity.Top flange plate 4 is positioned at cloudy fore shaft steel pipe 2 and props up cloudy fore shaft steel pipe 2 inwalls of the offside that cracks.Between i iron web 5, top flange plate 4 and steel pipe 2 inwalls, form two independently water proof cavitys 7, water proof cavity 7 has filled inserts 6.In inserts 6, insert and beat bar reinforcement 8, and carry out compacted processing, make that described inserts 6 is closely knit, realize good stagnant water effect, guarantee that the infiltration routes 9 of current is the longest.

Claims (7)

1. a steel pipe pile locking notch structure comprises the steel pipe pile that is provided with at interval, is provided with fore shaft between adjacent two steel pipe piles, and fore shaft comprises cloudy fore shaft and positive fore shaft, it is characterized in that: said cloudy fore shaft and positive fore shaft elasticity are gripped and closed; The front end of sun fore shaft is provided with water-resisting piece; Water-resisting piece props up cloudy fore shaft inwall, and and cloudy fore shaft inwall between form two independent water proof chambeies.
2. steel pipe pile locking notch structure as claimed in claim 1 is characterized in that: water proof is filled with inserts in the chamber, and described inserts is fluid-tight clay.
3. according to claim 1 or claim 2 steel pipe pile locking notch structure; It is characterized in that: described cloudy fore shaft is for be provided with round steel pipe or the square steel pipe that cracks vertically; The sun fore shaft is i iron or T-steel; In the web of said i iron or T-steel inserted and cracks, said i iron or T-steel web closed with cracking to grip for elasticity.
4. steel pipe pile locking notch structure as claimed in claim 3 is characterized in that: said i iron comprises web and is vertically located in upper and lower two frange plates at web two ends respectively; The top flange plate of i iron and the contained part web of steel pipe that cracked are formed water-resisting piece; The bottom wing listrium of i iron is positioned at outside the cloudy fore shaft steel pipe; Top flange plate props up the cloudy fore shaft steel pipe inwall of the offside that cracks, and bottom wing listrium and cloudy fore shaft steel pipe are welded in respectively between the two adjacent steel pile tubes.
5. adopt the water-stopping method of the steel pipe pile cofferdam of the said steel pipe pile locking notch structure of claim 1, it is characterized in that: in described two independent water proof chambeies, fill fluid-tight inserts, and in cavity, insert and beat strongly, fluid-tight inserts is carried out compacted processing.
6. the water-stopping method of steel pipe pile cofferdam as claimed in claim 5, it is characterized in that: the described waterproof inserts that fills is a clay.
7. the water-stopping method of steel pipe pile cofferdam as claimed in claim 5 is characterized in that: described to insert beat strong be bar reinforcement.
CN2009102276087A 2009-12-23 2009-12-23 Steel pipe pile locking notch structure and water-stopping method of steel pipe pile cofferdam Active CN101781894B (en)

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CN101781894B true CN101781894B (en) 2012-05-09

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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102134853A (en) * 2011-02-22 2011-07-27 北京城建道桥建设集团有限公司 CT sealed steel pipe pile foundation pit water stop supporting device and construction method thereof
CN102518140B (en) * 2011-12-21 2015-02-11 中铁大桥局集团有限公司 Locking opening structure of steel cofferdam and construction method for locking opening structure
CN103215961B (en) * 2012-01-20 2016-04-27 陈东曙 A kind of construction method of super-large diameter cylinder pile cofferdam
CN102561314A (en) * 2012-03-05 2012-07-11 张继红 Prefabricated waterproof pile (WSP pile) and inserting and pulling construction method thereof
CN103397634A (en) * 2013-08-16 2013-11-20 中铁上海工程局有限公司 Anchoring construction method for fastener steel tube pile cofferdam
CN104213569B (en) * 2014-10-01 2016-02-24 中交第一公路工程局有限公司 A kind of bridge pier cofferdam equipment integrating and construction method thereof
CN105603965A (en) * 2016-02-29 2016-05-25 上海市水利工程设计研究院有限公司 Sheet pile with tenon disengagement preventing structure and pile planting process thereof
CN106638640B (en) * 2017-01-23 2019-01-18 中铁七局集团有限公司勘测设计研究院 Construction method without bottom concrete combined type cofferdam under the conditions of formation geology
CN106988328A (en) * 2017-05-22 2017-07-28 中铁局集团有限公司 A kind of C c-types opening locked steel tube pilecofferdam and construction method
CN109372031B (en) * 2018-12-19 2020-12-22 中铁二局集团有限公司 Water-stop material for steel pipe pile cofferdam lock catch
CN110184995A (en) * 2019-06-03 2019-08-30 中交二航局第三工程有限公司 The pile sinking process of major diameter fore shaft steel-pipe pile

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CN101182717A (en) * 2007-07-30 2008-05-21 中铁十八局集团有限公司 Construction method of opening locked steel tube pilecofferdam
CN101597904A (en) * 2009-07-03 2009-12-09 东南大学 A kind of splash guard pile cofferdam and job practices thereof

Patent Citations (5)

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JP3368398B2 (en) * 1994-07-19 2003-01-20 川崎製鉄株式会社 Fitting member and fitting structure
JP2002129550A (en) * 2000-10-20 2002-05-09 Nkk Corp Underground column wall member and method for constructing underground column wall
JP2006063641A (en) * 2004-08-26 2006-03-09 Nippon Steel Corp Steel pipe sheet pile for sealing panel, and sealing steel pipe sheet pile panel using the steel pipe sheet pile
CN101182717A (en) * 2007-07-30 2008-05-21 中铁十八局集团有限公司 Construction method of opening locked steel tube pilecofferdam
CN101597904A (en) * 2009-07-03 2009-12-09 东南大学 A kind of splash guard pile cofferdam and job practices thereof

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