CN203782715U - Self-floating type inner mold system for under water pouring of hollow pipe column - Google Patents

Self-floating type inner mold system for under water pouring of hollow pipe column Download PDF

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Publication number
CN203782715U
CN203782715U CN201420208207.3U CN201420208207U CN203782715U CN 203782715 U CN203782715 U CN 203782715U CN 201420208207 U CN201420208207 U CN 201420208207U CN 203782715 U CN203782715 U CN 203782715U
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CN
China
Prior art keywords
formword
template
mold
formwork
hollow pipe
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.)
Expired - Fee Related
Application number
CN201420208207.3U
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Chinese (zh)
Inventor
殷永高
章征
张立奎
朱福春
吕奖国
赵公明
郑伟峰
王凯
纪厚强
沈宜萍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ANHUI HIGHWAY HOLDING GROUP Co Ltd
Anhui Expressway Holding Group Co Ltd
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ANHUI HIGHWAY HOLDING GROUP Co Ltd
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Priority to CN201420208207.3U priority Critical patent/CN203782715U/en
Application granted granted Critical
Publication of CN203782715U publication Critical patent/CN203782715U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a self-floating type inner mold system for under water pouring of a hollow pipe column. The self-floating type inner mold system is characterized in that an inner mold system arranged in a pipe column hole comprises a bottom-section mold plate adopting a steel structure; sections of prefabricated inner mold plates are assembled on the bottom-section mold plate from top to bottom section by section and form the inner mold system; the sections of prefabricated inner mold plates are full-closed buoy with the steel structure, which can obtain buoyancy in water. The self-floating type inner mold system can be applicable to construction of piles, immersed tubes, sunk wells and anchorages effectively, and realizes the cast-in-situ production of piles, immersed tubes, sunk wells and anchorages in water; the mold plate can be recycled; the construction efficiency and the material utilization rate are high.

Description

A kind of hollow pipe column underwater casting self-floating inner formwork system
Technical field
The utility model relates to that civil engineering, bridge room are built, basic cast-in-place construction inner formwork system in hydro-structure.
Background technology
Existing open caisson and immersed tube foundation construction adopt the method that relies on deadweight or ancillary method heightening and sinking then to carry out mud jacking processing after segmentation prefabricating member to construct.For this technique, except existing, a construction prefabricated component transportation difficulty, hanging device are large, prefabricated component sinks the problems such as difficulty, also has following what time being difficult to control: after sinking because the easy integral inclination of residue is arranged at bottom; Segmentation prefabricating, it is large that each saves interface concatenation construction difficulty; Mud jacking complex process, squeezing quality is difficult to control, and cost long in time limit is high.The above problem of prefabrication construction has become a difficult problem recognized within the industry.
Utility model content
The utility model is for avoiding the existing weak point of above-mentioned prior art, and a kind of hollow pipe column underwater casting self-floating inner formwork system is provided, and to realize the cast-in-place construction on basis in land and water, thereby convenient construction, improves efficiency of construction.
The utility model is that technical solution problem adopts following technical scheme:
The design feature of the utility model hollow pipe column underwater casting self-floating inner formwork system is: the inner formwork system being arranged in tubing string hole comprises: a steel work coxopodite template, in described coxopodite template, assemble section by section each precast segment inner formword from bottom to top; Described each precast segment inner formword for obtaining the totally-enclosed steel structure pontoon of buoyancy in water.
The design feature of the utility model hollow pipe column underwater casting self-floating inner formwork system is also:
Described coxopodite template is cast in the concrete back cover in tubing string hole and positions; Described each precast segment inner formword is to be formed by tile template assembly; In described each precast segment inner formword, be four support level upper supports that horizontally disposed " ten " word bracing frame is " ten " word at it and have positioning vertical column, the mutual inlay card of positioning vertical column on each tile template and adjacent position, and can take described positioning vertical column and vertically slide as lead; Between the prefabricated inner formword of adjacent segment, the positioning vertical column on correspondence position is threaded mutually; Be in adjacent locational the first precast segment inner formword of described coxopodite template in positioning vertical column be to be threaded on the end face of described coxopodite template, between described each precast segment inner formword, run through the locking steel hinge line for stretch-draw; Described locking steel hinge line utilizes jack to carry out stretch-draw on the limiting platform of top, hole.
The epimere of described coxopodite template is cylindrical tube, and hypomere is divergent-cone wall, and described coxopodite template is to position to be cast at the bottom of its conical tube in the concrete back cover in tubing string hole.
The center of Ge road " ten " word bracing frame is respectively arranged with steel strand and fastens node, and has the steel strand of recovery at each steel strand, to fasten the aperture that is connected in series and extends to tubing string hole between node, for reclaiming " ten " word bracing frame.
Compared with the prior art, the useful technique effect of the utility model is embodied in:
1, the cast in place process that realizes underwater foundation construction with the utility model, its technique simply, has greatly improved work efficiency.Compare with the cylinder pile foundation construction method of the prefabricated sinking of routine, the utility model does not need that large-scale place is prefabricated, transport member, the complicated procedures of forming of saving main equipment lifting and transferring.
2, the utility model is realized cylinder pile foundation primary concreting and is completed, and basis is complete integral body, can effectively improve fundamental mechanics performance, utilizes the utility model to realize the underwater casting of hollow pipe column, its system easy to control the quality.And the prefabricated construction method of tradition needs prefabricated component to connect height, junction difficult treatment, difficult quality is controlled.
3, the construction method of traditional prefabricated sinking needs to carry out mud jacking processing after prefabricated component has sunk, mud jacking complex process, particularly for cylinder pile foundation bottom squeezing quality, be quite difficult to control, cause foundation bottom periphery loose, foundation bearing capacity is reduced, and the utility model is realized disposable cast-in-place, does not need mud jacking to process, its steel work coxopodite template can extend darker position, completes after building and can avoid the loose problem of bottom periphery.
4, the utility model welding between each sections inner formword, facilitates installation and removal, can reuse, and effectively improves efficiency of construction and saves cost.
5, in the utility model, the setting of " ten " word bracing frame will, effectively to prevent the longitudinal and hoop strain of concreting, guarantee basic quality.
6, the utility model virtue of buoyancy carries out the recovery of prefabricated inner formword, can realize completely unmanned lower hole operation, the safety that has improved work progress.
Accompanying drawing explanation
Fig. 1 is the utility model self-floating inner formwork system elevation;
Fig. 2 is the utility model self-floating inner formwork system plan view;
Fig. 3 is coxopodite locating template scheme of installation in the utility model;
Fig. 4 is second section column and cross supporting frame scheme of installation in the utility model;
Fig. 5 is from floating template and positioning vertical column connection diagram in the utility model;
Fig. 6 is cross supporting frame and positioning vertical column connection diagram in the utility model.
Number in the figure: 1 retaining wall layer, 2 reinforcing cages, 3 inner formwords, 3a stiffener, 4 coxopodite templates, 5 is " ten " word bracing frame, 5a cone pin, 6 positioning vertical columns, 6a supports bracket, 7 locking steel hinge lines, 8 top, hole limiting platforms, 9 jack, 10 steel strand are fastened node, 11 concrete back covers, 12 recovery steel strand, 13 through wires holes.
The specific embodiment
Referring to Fig. 1, the form of structure of the present embodiment hollow core tubing string underwater casting self-floating inner formwork system is: the inner formwork system being arranged in tubing string hole comprises steel work coxopodite template 4, in coxopodite template 4, assemble section by section each precast segment inner formword 3 from bottom to top; Each precast segment inner formword 3 for obtaining the totally-enclosed steel structure pontoon of buoyancy in water.
As shown in Figure 1, coxopodite template 4 is cast in the concrete back cover 11 in tubing string hole and positions.
As shown in Figure 2 and Figure 5, each precast segment inner formword 3 is to be formed by tile template assembly; In each precast segment inner formword 3, be four support level upper supports that horizontally disposed " ten " word bracing frame 5 is " ten " word at it and have positioning vertical column 6, the mutual inlay card of positioning vertical column 6 on each tile template and adjacent position, and can take positioning vertical column 6 and vertically slide as lead; Each tile template is hollow totally-enclosed floating template, is provided with each road stiffener 3a in it; Each precast segment inner formword 3 can 6-15m according to practice of construction condition.
As shown in Fig. 3, Fig. 4 and Fig. 5, between the prefabricated inner formword 3 of adjacent segment, the positioning vertical column 6 on correspondence position is threaded mutually; Be in adjacent locational the first precast segment inner formword of coxopodite template 4 in positioning vertical column be to be threaded on the end face of coxopodite template 4, between each precast segment inner formword 3, by the through wires hole 13 being arranged in prefabricated inner formword 3, run through the locking steel hinge line 7 for stretch-draw; Locking steel hinge line 7 utilizes jack 9 to carry out stretch-draw on top, hole limiting platform 8.
In concrete enforcement, the epimere of coxopodite template 4 is cylindrical tube, and hypomere is divergent-cone wall, and coxopodite template 4 is to position to be cast at the bottom of its conical tube in the concrete back cover 11 in tubing string hole;
As shown in Figure 6, " ten " word bracing frame 5 arranges according to stressing conditions, every joint positioning vertical column 6 at least arranges twice " ten " word bracing frame 5, the center of Ge road " ten " word bracing frame 5 is respectively arranged with steel strand and fastens node 10, and have to reclaim with steel strand 12 and fasten and between node 10, be connected in series and extend to aperture at each steel strand, for reclaiming " ten " word bracing frame 5, on the inside wall of positioning vertical column 6, arrange and support bracket 6a, " ten " word bracing frame 5 is connected to and is supported bracket 6a by cone pin 5a.
The construction method that realizes hollow pipe column underwater casting with the present embodiment hollow core tubing string underwater casting self-floating inner formwork system is to carry out according to the following procedure:
1, reinforcing cage 2, after desired location pore-forming, is transferred in tubing string hole in pore-forming, makes the bottom of reinforcing cage 2 reach position at the bottom of hole;
2, in pore-forming, transfer coxopodite template 4, while being in position, aperture to the top of coxopodite template 4, at the end face of coxopodite template 4, positioning vertical column and " ten " word bracing frame in the first sections prefab form is installed; Again transfer to the top end of the positioning vertical column in the first sections prefab form when the position, aperture, with positioning vertical column and " ten " word bracing frame being threaded in a upper precast segment template; Continue to transfer positioning vertical column and " ten " word bracing frame in the pre-inner formword of each sections, until coxopodite template 4 reaches pore-forming bottom desired location, build fixedly coxopodite template 4 form the circular cylinder of back cover of bottom concrete;
3, utilize plug-in counterweight that each tile template in each precast segment template is sunk on assigned address for 6 times along positioning vertical column successively from place, aperture, on top, hole limiting platform 8, utilize jack 9 stretch-draw to be applied in each precast segment inner formword 3 locking steel strand 7 and carry out compacting locking, complete internal mold and install;
4, take the outer wall soil body of pore-forming is external mold, carries out pipe shaft concreting between external mold and internal mold; When pipe shaft concrete reaches intensity, take out plug-in counterweight, discharge the locking of locking steel strand 7, take out section by section positioning vertical column and " ten " bracing frame, virtue of buoyancy reclaims each precast segment inner formword section by section, completes construction.
In concrete enforcement, can also be after pore-forming and before transferring reinforcing cage, utilize annular sliding form apparatus along pore-forming inwall, with fast gel material under water, to build and be formed with retaining wall layer 1 (as shown in Figure 1) in pore-forming from bottom to top, and be to take retaining wall layer 1 as external mold while building pipe shaft.This retaining wall layer has higher intensity mass ratio, rigidity mass ratio and good decay resistance, and barrier performance is good, usings its protecting sheathing as concrete pipe shaft can implement life-cycle protection to concrete structure; Moreover, retaining wall layer can retrain the longitudinal and hoop strain of tubing string preferably, and reinforcing cage can configure according to minimum steel ratio, greatly reduces with ordinary reinforced concrete immersed tube reinforcement ratio, has also alleviated the lifting weight of reinforcing cage.
In concrete enforcement, under water fast gel material be with cement, gypsum, HPMC material and water by 1: 1: 0.01: 0.5 quality mixture ratio mixes, can highly wait actual condition suitably to adjust according to building, fast gel material setting time is 1 hour, intensity is 2MPa, and the thickness of building the retaining wall layer 1 of formation is 5 to 20cm.
The casting process of annular sliding form apparatus is at initial position, to build the strength of materials to reach after permissible value, mobile traveling formwork to the next position continues to build, realize continuous placing, sliding traveling formwork in annular sliding form apparatus is annular, and this construction technology is used widely at present in engineering construction.
The utility model tubing string diameter to 6m, can be widely used in the engineering construction fields such as bridge room is built, hydro-structure 3, and application scenario comprises: the construction on land conventional basis, as open caisson etc.; The construction on basis in water, as Anchor Foundation, group wells basis etc. in the king-post basis of bridge, water.

Claims (4)

1. a hollow pipe column underwater casting self-floating inner formwork system, it is characterized in that: the inner formwork system being arranged in tubing string hole comprises: a steel work coxopodite template (4), in described coxopodite template (4), assemble section by section each precast segment inner formword (3) above, from bottom to top; Described each precast segment inner formword (3) for obtaining the totally-enclosed steel structure pontoon of buoyancy in water.
2. hollow pipe column underwater casting self-floating inner formwork system according to claim 1, is characterized in that: described coxopodite template (4) is cast in the concrete back cover (11) in tubing string hole and positions; Described each precast segment inner formword (3) is to be formed by tile template assembly; In described each precast segment inner formword (3), be four support level upper supports that horizontally disposed " ten " word bracing frames (5) are " ten " word at it and have positioning vertical column (6), the mutual inlay card of positioning vertical column (6) on each tile template and adjacent position, and can take described positioning vertical column (6) and vertically slide as lead; Between the prefabricated inner formword (3) of adjacent segment, the positioning vertical column on correspondence position (6) is threaded mutually; Be in adjacent locational the first precast segment inner formword of described coxopodite template (4) in positioning vertical column be to be threaded on the end face of described coxopodite template (4), between described each precast segment inner formword (3), run through the locking steel hinge line (7) for stretch-draw; Described locking steel hinge line (7) utilizes jack (9) to carry out stretch-draw on top, hole limiting platform (8).
3. hollow pipe column underwater casting self-floating inner formwork system according to claim 2, it is characterized in that: the epimere of described coxopodite template (4) is cylindrical tube, hypomere is divergent-cone wall, and described coxopodite template (4) is to position to be cast at the bottom of its conical tube in the concrete back cover (11) in tubing string hole.
4. hollow pipe column underwater casting self-floating inner formwork system according to claim 2, it is characterized in that: the center of Ge road " ten " word bracing frame (5) is respectively arranged with steel strand and fastens node (10), and have recovery with steel strand (12), at each steel strand, to fasten the aperture that is connected in series and extends to tubing string hole between node (10), for reclaiming " ten " word bracing frame (5).
CN201420208207.3U 2014-04-25 2014-04-25 Self-floating type inner mold system for under water pouring of hollow pipe column Expired - Fee Related CN203782715U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420208207.3U CN203782715U (en) 2014-04-25 2014-04-25 Self-floating type inner mold system for under water pouring of hollow pipe column

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420208207.3U CN203782715U (en) 2014-04-25 2014-04-25 Self-floating type inner mold system for under water pouring of hollow pipe column

Publications (1)

Publication Number Publication Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103924595A (en) * 2014-04-25 2014-07-16 安徽省高速公路控股集团有限公司 Self-float type inner formwork system for underwater pouring of hollow pipe column and application thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103924595A (en) * 2014-04-25 2014-07-16 安徽省高速公路控股集团有限公司 Self-float type inner formwork system for underwater pouring of hollow pipe column and application thereof
CN103924595B (en) * 2014-04-25 2016-01-20 安徽省交通控股集团有限公司 A kind of hollow pipe column underwater casting self-floating inner formwork system

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140820

Termination date: 20160425