CN105442622A - Water-retaining construction technology for locked steel pipe piles - Google Patents
Water-retaining construction technology for locked steel pipe piles Download PDFInfo
- Publication number
- CN105442622A CN105442622A CN201510929218.XA CN201510929218A CN105442622A CN 105442622 A CN105442622 A CN 105442622A CN 201510929218 A CN201510929218 A CN 201510929218A CN 105442622 A CN105442622 A CN 105442622A
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- Prior art keywords
- fore shaft
- mud
- water
- steel pipe
- construction
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0061—Production methods for working underwater
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/0023—Slurry
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to a deepwater foundation construction technology for bridges, discloses a water-retaining construction technology for locked steel pipe piles and belongs to the field of engineering construction. The water-retaining construction technology specifically comprises the steps of machining, inserting and driving the TC type locked steel pipe piles, cleaning locking openings, inserting waterproof cloth belts and grouting pipes into the locking openings, preparing mud, injecting the mud into the locking openings and curing the mud. According to the invention, for overcoming the shortcomings and constraints in the prior art, the TC type locking openings are designed for being matched with mortar, constructing, inserting and driving are convenient, the water-retaining performance is good, the construction efficiency is high, and the effect is good in construction of deepwater locked cofferdams. The TC type locking openings formed by combining H-shaped steel and steel pipes are adopted and have the advantages that embedding is convenient, the strength is high and the water-retaining effect is good. The low-strength slight-expansion mud is poured into waterproof geotextile in the middle of the locking openings for retaining water.
Description
Technical field
What the present invention relates to is a kind of bridge deepwater foundation construction technology, and particularly a kind of waterstop construction process of opening locked steel tube pilecofferdam, belongs to engineering construction field.
Background technology
Along with the development of China's engineering construction field, opening locked steel tube pilecofferdam deep water construction technology by application to a certain extent and popularization.It is fast that fore shaft cofferdam has speed of application, and cofferdam rigidity is large, the advantage that steel pipe column can repeatedly have enough to meet the need.
But the sealing problem of fore shaft is still the important factor of restriction one of its Technique Popularizing.Adopt opening locked steel tube pilecofferdam to use because its sealing difficulty limits at foundation in water at present less, and also need after sealing to consider that later stage steel pipe pile can be extracted smoothly.
Summary of the invention
The present invention is directed to the deficiencies in the prior art and restraining factors, by the fore shaft of design TC type and the cooperation of mortar, construction inserted to play is convenient, and sealing is excellent, and efficiency of construction is high, can obtain extraordinary effect in deep water fore shaft cofferdam construction.Fore shaft adopts i iron to combine with steel pipe TC fore shaft pattern, and TC fore shaft form is convenient to be fitted together to, and enough, stagnant water effect is good for intensity.Perfusion low-intensity microdilatancy mud sealing in waterproof geotextiles is adopted in the middle of fore shaft.
Specific construction technique of the present invention is as follows:
Processing also inserted to play TC type fore shaft steel pipe pile → fore shaft cleaning → waterproof strap and Grouting Pipe are inserted fore shaft → modulation low-intensity mortar → mud injects fore shaft → health.
Fore shaft steel pipe pile waterstop construction process, is characterized in that step is as follows:
1) TC type negative and positive fore shaft form, by fore shaft is designed to,
2), before sealing construction, first rinse in fore shaft, ensure in fore shaft unobstructed, wall body is without folder mud;
3) identical with fore shaft length waterproof cloth bag wraps Grouting Pipe and together inserts the female mouth bottom of fore shaft,
4), mixing mud, mud is mixed to forming by swell soil, cement, cement expansive material and water; Mud is in a liquid state, and needs to ensure not occur volume contraction, and intensity is not more than 2Mpa;
5), carry out slip casting, marginal not slurry limit promotes until fill the female mouth of fore shaft, until fill;
6), after mortar injection completes, health 3-5 days.
Further, simulated mud is: 350kg swell soil: 200kg cement: 40kg cement expansive material: 1000kg water.
The present invention is described in further detail:
1, fore shaft is designed to TC type negative and positive fore shaft form, makes between fore shaft steel pipe pile closely chimeric, sealing area is little and be beneficial to the dismounting in steel pipe pile inserted to play and later stage.The T-shaped Yang Kou of fore shaft adopts I16 i iron half-and-half to cut, and the cloudy mouth of C type adopts steel pipe opening.
2, before constructing before sealing, first rinse in fore shaft, ensure in fore shaft unobstructed, wall body is without folder mud.
In the waterproof cloth bag identical with fore shaft length, leak stopping is carried out in slip casting, and waterproof cloth bag wraps Grouting Pipe and stretches into female mouth bottom.Cloth bag and Grouting Pipe together insert fore shaft, prevent from kinking during installation.Adopt slip casting in cloth bag can prevent slurries from being broken up under water, also form separation layer at slurries and fore shaft wall body simultaneously, facilitate later stage pile pulling.
4, adopt conventional mud mixer mixing mud, mud stirring is even, and mud adopts Jiangsu Botexin Materials Co., Ltd to produce by swell soil, cement (32.5 cement), expansion agent
-III (D) cement expansive material, water are mixed to forming.Cement paste is in a liquid state, and be convenient to perfusion, do not occur volume contraction, intensity is generally not more than 2Mpa.
5, carry out slip casting after slurries allotment, marginal not slurry limit promotes until fill female mouth, until fill.
6, check cloth bag full condition in time, need supplementary irrigation person to carry out in time, prevent pocket from being hardened by slurry, affect supplementary irrigation quality.
7, after mortar injection completes, health 3-5 days, can carry out cofferdam and draw water.
Accompanying drawing illustrates:
Fig. 1 is fore shaft plan view
Fig. 2 is the complete A drawing of mortar injection in Fig. 1
Fig. 3 is fore shaft plan view,
Fig. 4 is TC type fore shaft drawing
Wherein
1. 2. steel pipe pile is fore shaft, is 3. Yang Kou, is 4. cloudy mouth, is 5. waterproof cloth bag,
6. be low-intensity mortar.
Detailed description of the invention
Opening locked steel tube pilecofferdam sealing construction is adopted to be that example is described in further details the present invention in conjunction with certain Bridge Project project.
The long 37m of bridge auxiliary pier cushion cap, wide 10.5m, high 4m, cushion cap is always just measured as 1372m
3, in construction, adopt fore shaft steel pipe pile as water stop cofferdam.Fore shaft steel pipe pile waterstop construction process is as follows: steel pipe pile → inserted to play fore shaft steel pipe pile → fore shaft cleaning → waterproof strap and Grouting Pipe are inserted fore shaft → modulation low-intensity height mortar → mortar injects fore shaft → health for design, processing TC type fore shaft
1, during construction, fore shaft is designed to TC type fore shaft, carries out inserted to play.Steel pipe adopts diameter of phi 800*10mm, and the T-shaped Yang Kou of fore shaft adopts I16 i iron half-and-half to cut, and the cloudy mouth of C type adopts Φ 159 steel pipe opening.Fore shaft detailed construction figure is as Fig. 3 and 4:
2, use high-pressure hydraulic pump to rinse silt particle in fore shaft, ensure in fore shaft unobstructed, wall body is without folder mud.
3, test room is through the match ratio of test of many times determination mortar, and proportioning is: 350kg (swell soil): 200kg (cement): 40kg (expansion agent): 1000kg (water).The mortar that this mortar is large can arrive the optional position of fore shaft easily when pouring into, plugging effect is good, and low intensive mortar can reach the object of sealing, and is convenient to the dismounting in later stage.Cement is that 32.5 cement get final product, expansion agent can adopt Jiangsu Botexin Materials Co., Ltd to produce
-III (D) cement expansive material.
4, slip casting in the diameter 15cm waterproof cloth bag identical with fore shaft length is adopted to carry out leak stopping.Cloth bag and Grouting Pipe together insert fore shaft, waterproof cloth bag are wrapped Ф 30mm Grouting Pipe and stretch into female mouth bottom, after carry out slip casting, marginal not slurry limit promote until fill female mouth.
5, personnel check that fore shaft place does not fill the position of mortar in time, timely after-teeming.The complete rear health of mortar injection 3 days.
By research of technique, adopt the construction technology of the novel fore shaft pattern that combines with steel pipe of i iron and the water shutoff of low-intensity mortar injection fore shaft, successful implementation underwater support table cofferdam.After sealing process implementing, draw water smoothly in cofferdam, do not occur water leakage situation, cushion cap is constructed in anhydrous conditions.Later stage steel pipe pile is pulled out smoothly, uses as other position, has effectively saved cost.
Claims (2)
1. fore shaft steel pipe pile waterstop construction process, is characterized in that step is as follows:
1) TC type negative and positive fore shaft form, by fore shaft is designed to,
2), before sealing construction, first rinse in fore shaft, ensure in fore shaft unobstructed, wall body is without folder mud.
3) identical with fore shaft length waterproof cloth bag wraps Grouting Pipe and together inserts the female mouth bottom of fore shaft,
4), mixing mud, mud is mixed to forming by swell soil, cement, cement expansive material and water.Mud is in a liquid state, and needs to ensure not occur volume contraction, and intensity is not more than 2Mpa.
5), carry out slip casting, marginal not slurry limit promotes until fill the female mouth of fore shaft, until fill.
6), after mortar injection completes, health 3-5 days.
2. technique according to claim 1, is characterized in that: simulated mud is: 350kg swell soil: 200kg cement: 40kg cement expansive material: 1000kg water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510929218.XA CN105442622A (en) | 2015-12-15 | 2015-12-15 | Water-retaining construction technology for locked steel pipe piles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510929218.XA CN105442622A (en) | 2015-12-15 | 2015-12-15 | Water-retaining construction technology for locked steel pipe piles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105442622A true CN105442622A (en) | 2016-03-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510929218.XA Pending CN105442622A (en) | 2015-12-15 | 2015-12-15 | Water-retaining construction technology for locked steel pipe piles |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105887769A (en) * | 2016-05-18 | 2016-08-24 | 王燏斌 | Dam construction method |
| CN105926543A (en) * | 2016-05-18 | 2016-09-07 | 王燏斌 | Dam construction method |
| CN105951682A (en) * | 2016-05-18 | 2016-09-21 | 王燏斌 | Dam construction method |
| CN106284272A (en) * | 2016-10-08 | 2017-01-04 | 江苏省交通工程集团有限公司 | Fore shaft grouting steel tube pile guide wall and construction method |
| CN108118702A (en) * | 2018-01-31 | 2018-06-05 | 中交上海三航科学研究院有限公司 | For the recoverable flexible compound supporting construction and method of construction of coral reef foundation pit |
| CN108677927A (en) * | 2018-06-21 | 2018-10-19 | 上海坚实地基基础工程有限公司 | One kind, which blocks water, is engaged steel-pipe pile |
| CN108729457A (en) * | 2018-06-27 | 2018-11-02 | 中铁十六局集团第三工程有限公司 | A kind of steel pipe pile cofferdam and its construction method for bridge deepwater foundation |
| CN109372032A (en) * | 2018-12-19 | 2019-02-22 | 中铁二局集团有限公司 | A kind of lock steel pipe pile cofferdam lock water-stopping method |
| CN109469062A (en) * | 2018-12-19 | 2019-03-15 | 中铁二局集团有限公司 | A kind of lock steel pipe pile cofferdam lock borehole cleaning method |
| CN111851504A (en) * | 2020-06-19 | 2020-10-30 | 湖南路桥建设集团有限责任公司 | Method for installing water stopping steel hanging box of tie beam between piles in water |
| CN112211209A (en) * | 2020-09-24 | 2021-01-12 | 中铁大桥局集团第一工程有限公司 | Water stopping method for locking notch of steel pipe pile |
| CN112227382A (en) * | 2020-10-19 | 2021-01-15 | 中建一局集团建设发展有限公司 | Double-row pile structure with water stopping function and construction method thereof |
| CN115045310A (en) * | 2022-07-25 | 2022-09-13 | 中交一公局第八工程有限公司 | Steel pipe pile cofferdam construction method |
| CN115142448A (en) * | 2022-07-25 | 2022-10-04 | 中交一公局第八工程有限公司 | Steel-pipe pile cofferdam |
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| CN203034467U (en) * | 2012-10-31 | 2013-07-03 | 东南大学 | Combined steel pile cofferdam with water-proof fore shafts |
| CN203866819U (en) * | 2014-05-07 | 2014-10-08 | 江苏巨鑫石油钢管有限公司 | Steel pipe pile lock mouth structure |
| CN105000830A (en) * | 2015-04-22 | 2015-10-28 | 南京航空航天大学 | Double-expansion filling mortar |
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2015
- 2015-12-15 CN CN201510929218.XA patent/CN105442622A/en active Pending
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| US6427402B1 (en) * | 2000-10-25 | 2002-08-06 | American Piledriving Equipment, Inc. | Pile systems and methods |
| 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 |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105887769A (en) * | 2016-05-18 | 2016-08-24 | 王燏斌 | Dam construction method |
| CN105926543A (en) * | 2016-05-18 | 2016-09-07 | 王燏斌 | Dam construction method |
| CN105951682A (en) * | 2016-05-18 | 2016-09-21 | 王燏斌 | Dam construction method |
| CN106284272A (en) * | 2016-10-08 | 2017-01-04 | 江苏省交通工程集团有限公司 | Fore shaft grouting steel tube pile guide wall and construction method |
| CN108118702A (en) * | 2018-01-31 | 2018-06-05 | 中交上海三航科学研究院有限公司 | For the recoverable flexible compound supporting construction and method of construction of coral reef foundation pit |
| CN108677927A (en) * | 2018-06-21 | 2018-10-19 | 上海坚实地基基础工程有限公司 | One kind, which blocks water, is engaged steel-pipe pile |
| CN108729457A (en) * | 2018-06-27 | 2018-11-02 | 中铁十六局集团第三工程有限公司 | A kind of steel pipe pile cofferdam and its construction method for bridge deepwater foundation |
| CN109372032A (en) * | 2018-12-19 | 2019-02-22 | 中铁二局集团有限公司 | A kind of lock steel pipe pile cofferdam lock water-stopping method |
| CN109469062A (en) * | 2018-12-19 | 2019-03-15 | 中铁二局集团有限公司 | A kind of lock steel pipe pile cofferdam lock borehole cleaning method |
| CN111851504A (en) * | 2020-06-19 | 2020-10-30 | 湖南路桥建设集团有限责任公司 | Method for installing water stopping steel hanging box of tie beam between piles in water |
| CN112211209A (en) * | 2020-09-24 | 2021-01-12 | 中铁大桥局集团第一工程有限公司 | Water stopping method for locking notch of steel pipe pile |
| CN112227382A (en) * | 2020-10-19 | 2021-01-15 | 中建一局集团建设发展有限公司 | Double-row pile structure with water stopping function and construction method thereof |
| CN115045310A (en) * | 2022-07-25 | 2022-09-13 | 中交一公局第八工程有限公司 | Steel pipe pile cofferdam construction method |
| CN115142448A (en) * | 2022-07-25 | 2022-10-04 | 中交一公局第八工程有限公司 | Steel-pipe pile cofferdam |
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Application publication date: 20160330 |
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