CN106498935B - A kind of bored pile underwater concrete casting method - Google Patents
A kind of bored pile underwater concrete casting method Download PDFInfo
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- CN106498935B CN106498935B CN201610984463.5A CN201610984463A CN106498935B CN 106498935 B CN106498935 B CN 106498935B CN 201610984463 A CN201610984463 A CN 201610984463A CN 106498935 B CN106498935 B CN 106498935B
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- concrete
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- pile foundation
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/06—Placing concrete under water
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of bored pile underwater concrete casting methods, and foundation pit mouth steel guard ring is installed in bored concrete pile foundation pit;The vomit pipe of concrete bucket stretches into bored concrete pile foundation pit, and vomit pipe lower end to hole bottom retains distance A;Distance A is 8%-the 15% of bored concrete pile foundation depth L;Concrete bucket is opened, concrete material is discharged to the hole upward 0.4-0.85A height and positions in bottom;Concrete bucket is promoted, it is 30%-the 50% of bored concrete pile foundation depth L to make vomit pipe lower end to the distance between hole bottom B, distance B;Then opening concrete bucket is discharged to hole bottom and is up to 0.85B height and positions upwards;Concrete bucket and blowing are repeatedly promoted, until it is near coal-mine to be discharged to top, cast-in-place pile concrete is obtained after maintenance.The method of the present invention, can shorten the activity time of bridge pile foundation substructure concrete placings, it is ensured that the quick formation of bridge pile foundation substructure concrete placings improves speed of application and the safety of concrete placings, reaches the closely knit quality technology effect of concrete placings.
Description
Technical field
The present invention relates to a kind of bridge pile foundation substructure cast-in-place pile concrete casting method more particularly to a kind of bored concrete piles
Underwater concreting method.
Background technology
Traditional bridge pile foundation substructure construction bored concrete pile underwater concrete pouring, typically after foundation pit is formed, using not
Interruption is drawn water or pouring using floating ball method progress pile foundation concrete, and the tedious process used, construction take, are underwater for bored concrete pile
The quick formation of concrete placings, need to take corresponding ancillary measure;It is formed in construction first, concrete is not easy fast pouring, need to be adopted
With uninterruptedly drawing water;Second is that when continuous placing concrete, it is not easy to ensure that the pouring quality of concrete, concrete meeting moisture ratio can change
Situation;Third, traditional concrete drain hopper is slide valve, open and close when charge that valve is laborious, and the moment for being unfavorable for concrete material goes out
Material, blowing resistance are larger;And the activity time of operation is longer, work efficiency is low;It is unfavorable for bridge pile foundation substructure concrete placings
The construction of rapid shaping, this be mainly bridge pile foundation substructure bored concrete pile underwater concrete pouring construction technology and method needs change
Into and the discharge valve of concrete hopper need to improve, the needs such as fast pouring, continuous placing are can not achieve, it cannot be guaranteed that concrete
Pouring quality.
Invention content
Aiming at the above shortcomings existing in the prior art, the present invention provides what a kind of bored pile underwater concrete poured to apply
Work technology, easily designed and construction bridge substructure, the construction technology that the bored pile underwater concrete of construction pours are improved
Method.
In order to solve the above-mentioned technical problem, present invention employs the following technical solutions:
A kind of bored pile underwater concrete casting method, which is characterized in that include the following steps:
(1)According to construction process requirement, construction obtains bored concrete pile foundation pit;
(2)Foundation pit mouth steel guard ring is installed;According to construction process requirement, the foundation pit mouth dimensional fits with bored concrete pile foundation pit are made
Steel guard ring, steel guard ring is placed on the foundation pit mouth of bored concrete pile foundation pit, and the cavity at center when pouring for being passed through vomit pipe;
(3)It allocates and transports above concrete bucket to the foundation pit mouth of bored concrete pile foundation pit;Vomit pipe stretches into bored concrete pile foundation pit, vomit pipe
Lower end to hole bottom retains distance A;Distance A is 8%-the 15% of bored concrete pile foundation depth L;
(4)It is packed into concrete bucket according to the concrete material of technological requirement mixing;
(5)Concrete bucket is opened, concrete material is discharged to the hole upward 0.4-0.85A height and positions in bottom, closes concrete bucket;
(6)It is lifted up concrete bucket, it is bored concrete pile foundation pit to make vomit pipe lower end to the distance between hole bottom B, distance B
30%-the 50% of depth L;Then opening concrete bucket is discharged to hole bottom and is up to 0.85B height and positions upwards;
(7)Repeat above-mentioned the(6)Step repeatedly promotes concrete bucket and blowing, until vomit pipe lower end to it is near coal-mine away from
From 10% -15% height and position for bored concrete pile foundation depth;It is near coal-mine to continue to be discharged to top, after maintenance, it is mixed to obtain bored concrete pile
Solidifying soil.
Further feature is:Terminate to take out foundation pit mouth steel guard ring in concrete pouring, reuse.
Concrete bucket is pyramidal structure, is internally provided with solid steel ball, and solid steel ball is placed on to be connected with concrete bucket lower part
The opening of the vomit pipe upper end connect;The lower end of down-set ball valve pull rod is connect with solid steel ball, ball valve pull rod upper end with
Spherical valve switch handlebar is connected;The intermediate position of spherical valve switch handlebar is movably hinged with operating mechanism holder, upward or downward
The handle of spherical valve switch handlebar is rotated, operating lever is driven to rotate backward, ball valve pull rod is driven to move up and down, is driven on solid steel ball
Lower movement, closes or opens vomit pipe upper end opening.
The upper end of the ball valve pull rod coordinates with pull rod holder for steel bushing activity, and ball valve pull rod passes vertically through pull rod holder
Steel bushing.
The construction technology and method of the bridge pile foundation substructure concrete filling pile underwater concrete pouring of the present invention, relative to existing
Technology has following features:
1, the activity time of bridge pile foundation substructure concrete placings can be shortened, it is ensured that bridge pile foundation substructure concrete placings
It is quickly formed, improves speed of application and the safety of concrete placings, realize the closely knit quality skill of bridge pile foundation substructure concrete placings
Art effect.
2, the present invention can also enrich existing highway bridge pile foundation substructure, bored concrete pile according to the execution conditions and technique of formation
The construction technical schemes and engineering legislation of underwater concrete pouring.
3, the present invention need not extract water in bored concrete pile, accelerate construction speed, improve construction efficiency.
4, after the completion of a poured pile base cheats underwater concrete pouring, foundation pit mouth steel guard ring is can be taken off, is then fitted into next
On the foundation pit mouth of the bored concrete pile foundation pit of a concrete to be perfused, repeatable poured pile base hole underwater casting concrete technology flow continues to grasp
Make.
Description of the drawings
Fig. 1 is a kind of process flow diagram of bridge substructure bored concrete pile underwater concrete pouring method;
Fig. 2 is a kind of hopper construction schematic diagram of bridge substructure bored concrete pile underwater concrete pouring method.
In figure:1-bored concrete pile foundation pit, 2-pit water accumulations, 3-foundation pit mouth steel guard rings, 4-concrete buckets,
5-solid steel balls, 6-vomit pipes, 7-ball valve pull rods, 8-pull rod holders, 9-operating mechanism holders, 10-balls
Threshold switch handle, 11-concrete hopper hoist cables, 12-pour concrete material.
Specific implementation mode
Present invention will be further explained below with reference to the attached drawings and examples.
Embodiment:
A kind of bridge substructure bored pile underwater concrete casting method, includes the following steps:
(1)According to construction process requirement, construction obtains bored concrete pile foundation pit;Through excavating construction etc., bored concrete pile foundation pit is obtained;Tool
Body may be used the prior art and be excavated, and obtain bored concrete pile foundation pit;
(2)Foundation pit mouth steel guard ring is installed;According to construction process requirement, the foundation pit mouth dimensional fits with bored concrete pile foundation pit are made
Steel guard ring, steel guard ring is placed on the foundation pit mouth of bored concrete pile foundation pit, and the cavity at center is convenient for for being passed through vomit pipe when pouring
Concrete material is poured by vomit pipe into bored concrete pile foundation pit;
(3)It allocates and transports above concrete bucket to the foundation pit mouth of bored concrete pile foundation pit;The vomit pipe of extended length stretches into poured pile base
In hole, vomit pipe lower end retains the distance A of technological requirement to hole bottom;Distance A is usually the 8%-of bored concrete pile foundation depth L
15%, on concrete bucket is in the closed position;
(4)It is packed into concrete bucket according to the concrete material of technological requirement mixing, waits for blowing;
(5)Concrete bucket is opened, concrete material is discharged to the hole upward 0.4-0.85A height and positions in bottom, closes concrete bucket, closes
Close the solid steel ball of concrete bucket;
(6)It is lifted up concrete bucket, the upward distance B in vomit pipe lower end to hole bottom, distance B is usually poured pile base
30%-the 50% of depth is cheated, opening concrete bucket is discharged to hole bottom and is up to 0.85B height and positions upwards;That is the concrete material of blowing,
Extreme higher position is 0.85B height;
(7)Repeat above-mentioned the(6)Step repeatedly promotes concrete bucket and blowing, until vomit pipe lower end to it is near coal-mine away from
From 10% -15% height and position for bored concrete pile foundation depth;It is near coal-mine to continue to be discharged to top, after maintenance, it is mixed to obtain bored concrete pile
Solidifying soil.
In addition, as needed, concrete pouring terminates to take out foundation pit mouth steel guard ring, foundation pit mouth steel shield can be repeatedly used
Circle.
As a further improvement on the present invention, grout pile concrete pours the corresponding improvement of concrete bucket 4:The concrete bucket of taper
Solid steel ball 5 is provided in 4, solid steel ball 5 is placed on(It blocks)6 upper end opening of vomit pipe being connect with concrete bucket lower part
Place, concrete bucket 4 is air-tight state at this time, forms the valve of solid steel ball;It is down-set(Straight down)Ball valve pull rod 7
Lower end is connect with solid steel ball 5, and 7 upper end of ball valve pull rod is connected with 10 activity of ball valve song shoulder type spherical valve switch handlebar;Specifically,
Sliding slot is set in the operating lever of spherical valve switch handlebar 10, and 7 upper end of ball valve pull rod is movably arranged in the sliding slot, and packaged type connects
It is connected in sliding slot;The intermediate position of spherical valve switch handlebar 10 is movably hinged with operating mechanism holder 9, is rotated around the hinge joint,
The handle for rotating spherical valve switch handlebar 10 upward or downward, drives operating lever to rotate backward, and ball valve pull rod 7 is driven to move up and down,
It drives solid steel ball 5 to move up and down, closes or opens 6 upper end opening of vomit pipe, open the opening of vomit pipe 6, then concrete bucket 4
Concrete material pour downwards;The upper end of ball valve pull rod 7 coordinates with pull rod holder 8 for steel bushing activity, and ball valve pull rod 7 passes vertically through pull rod
The steel bushing of holder 8 ensures the verticality of ball valve pull rod 7;Lower end couples solid steel ball 5, and concrete hopper hoist cable 11 connects for four-in-one
Hoist cable is picked up, is picked up outside under device for hoisting drive, allocation and transportation concrete bucket 4.
After the completion of a poured pile base cheats underwater concrete pouring, foundation pit mouth steel guard ring 3 is can be taken off, is then fitted into next
On the foundation pit mouth of the bored concrete pile foundation pit of concrete to be perfused, repeatable poured pile base hole underwater casting concrete technology flow continues to grasp
Make.
Using the construction technology and method of improved bridge pile foundation substructure concrete filling pile underwater concrete pouring, can shorten
The activity time of bridge pile foundation substructure concrete placings, it is ensured that the quick formation of bridge pile foundation substructure concrete placings improves concrete
The closely knit quality technology effect of bridge pile foundation substructure concrete placings is realized in the speed of application poured and safety.It also can basis
The execution conditions and technique of formation enrich existing highway bridge pile foundation substructure, the construction technical schemes of bored concrete pile underwater concrete pouring
And engineering legislation.
Its technological process is as follows:
(1)Bored concrete pile underwater concrete pouring sequence:(Early period bored concrete pile foundation pit formation)→ 1. installation foundation pit mouth steel guard ring →
2. concrete bucket is in place, extend spreading vomit pipe to the hole upward positions L/10 in bottom, solid steel ball it is in the closed position it is upper → 3.
Hopper, which starts to contain concrete material, waits for that the hopper of blowing → 4. contains concrete material and is discharged to the hole upward positions L/5 in bottom, closes solid steel ball → 5.
Promotion hopper shortens vomit pipe and extremely cheats the upward positions L/3 in bottom, continues to be discharged to and cheat the upward positions L/4 in bottom, until promotion hopper subtracts
It is near coal-mine to continue to be discharged to the tops L to the near coal-mine downward positions L/5 for short vomit pipe, and → 6. concrete pouring terminates → 7. takes out foundation pit mouth steel shield
Circle →(After the completion of a poured pile base cheats underwater concrete pouring, foundation pit mouth steel guard ring 3 is can be taken off, next wait for is then fitted into
It is perfused on the foundation pit mouth of the bored concrete pile foundation pit 1 of concrete, repeatable poured pile base hole underwater casting concrete technology flow continues to grasp
Make).
Finally, it should be noted that technical side the above examples are only used to illustrate the technical scheme of the present invention and are not limiting
Case, although applicant describes the invention in detail with reference to preferred embodiment, those skilled in the art should manage
Solution, those are modified or replaced equivalently technical scheme of the present invention, without departing from the objective and range of the technical program,
It is intended to be within the scope of the claims of the invention.
Claims (3)
1. a kind of bored pile underwater concrete casting method, which is characterized in that include the following steps:
(1)According to construction process requirement, construction obtains bored concrete pile foundation pit;
(2)Foundation pit mouth steel guard ring is installed;According to construction process requirement, the steel with the foundation pit mouth dimensional fits of bored concrete pile foundation pit is made
Guard ring, steel guard ring are placed on the foundation pit mouth of bored concrete pile foundation pit, and the cavity at center when pouring for being passed through vomit pipe;
(3)It allocates and transports above concrete bucket to the foundation pit mouth of bored concrete pile foundation pit;Vomit pipe stretches into bored concrete pile foundation pit, vomit pipe lower end
Retain distance A to hole bottom;Distance A is 8%-the 15% of bored concrete pile foundation depth L;
The concrete bucket is pyramidal structure, is internally provided with solid steel ball, and solid steel ball is placed on to be connected with concrete bucket lower part
The opening of the vomit pipe upper end connect;The lower end of down-set ball valve pull rod is connect with solid steel ball, ball valve pull rod upper end with
Spherical valve switch handlebar is connected;The intermediate position of spherical valve switch handlebar is movably hinged with operating mechanism holder, upward or downward
The handle of spherical valve switch handlebar is rotated, operating lever is driven to rotate backward, ball valve pull rod is driven to move up and down, is driven on solid steel ball
Lower movement, closes or opens vomit pipe upper end opening;
(4)It is packed into concrete bucket according to the concrete material of technological requirement mixing;
(5)Concrete bucket is opened, concrete material is discharged to the hole upward 0.4-0.85A height and positions in bottom, closes concrete bucket;
(6)It is lifted up concrete bucket, it is bored concrete pile foundation depth to make vomit pipe lower end to the distance between hole bottom B, distance B
30%-the 50% of L;Then opening concrete bucket is discharged to hole bottom and is up to 0.85B height and positions upwards;
(7)Repeat above-mentioned the(6)Step repeatedly promotes concrete bucket and blowing, until vomit pipe lower end near coal-mine distance is
10% -15% height and position of bored concrete pile foundation depth;It is near coal-mine to continue to be discharged to top, after maintenance, obtains bored concrete pile coagulation
Soil.
2. a kind of bored pile underwater concrete casting method according to claim 1, it is characterised in that:Terminate in concrete pouring
Foundation pit mouth steel guard ring is taken out, is reused.
3. a kind of bored pile underwater concrete casting method according to claim 1 or 2, it is characterised in that:The ball valve
The upper end of pull rod coordinates with pull rod holder for steel bushing activity, and ball valve pull rod passes vertically through the steel bushing of pull rod holder.
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CN109403217B (en) * | 2018-12-13 | 2024-06-11 | 中国铁路总公司 | Underwater concrete pouring device and pouring method |
CN110146653A (en) * | 2019-05-29 | 2019-08-20 | 河海大学 | A kind of simulator and application method of liquidation curing sludge underwater casting |
CN111719548A (en) * | 2020-05-18 | 2020-09-29 | 中国建筑第八工程局有限公司 | Method for dry-method hole-forming pile foundation wet-method pouring construction |
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JPS57172039A (en) * | 1981-04-13 | 1982-10-22 | Ohbayashigumi Ltd | Method and apparatus for placing under-water concrete |
HK1026335A2 (en) * | 2000-08-04 | 2000-11-10 | Tysan Machinery Hire Ltd | A method of tremie concreting in non-displacement piles using cement grout cementitous materials of similar mixtures and a hydraulic-operated concrete discharger |
JP4636298B2 (en) * | 2001-03-26 | 2011-02-23 | 東洋建設株式会社 | Underwater concrete placement equipment |
CN101725148B (en) * | 2010-02-04 | 2012-07-25 | 大连阿尔滨集团有限公司 | Feeding device of pouring pile underwater concrete and pouring method thereof |
CN102561329B (en) * | 2011-12-19 | 2014-11-19 | 中冶交通工程技术有限公司 | Construction method of underwater concrete cast-in-place pipe pile |
CN102561355B (en) * | 2012-02-16 | 2013-03-27 | 广东省六建集团有限公司 | Method for treating burst and jam of bored pile guide pipe |
CN102720186B (en) * | 2012-07-10 | 2014-11-05 | 上海港务工程公司 | Underwater once pouring method for variable cross-section bored cast-in-place pile |
CN103031848B (en) * | 2012-12-19 | 2014-10-29 | 广东省基础工程公司 | Concrete grouting construction method and device for implementing same |
CN103306287A (en) * | 2013-07-02 | 2013-09-18 | 张璐 | Underwater concrete pouring hopper |
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