CN103147438A - Cast-in-place post-tensioning method-based I-shaped support pile and manufacturing method of support pile - Google Patents
Cast-in-place post-tensioning method-based I-shaped support pile and manufacturing method of support pile Download PDFInfo
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- CN103147438A CN103147438A CN201310030438XA CN201310030438A CN103147438A CN 103147438 A CN103147438 A CN 103147438A CN 201310030438X A CN201310030438X A CN 201310030438XA CN 201310030438 A CN201310030438 A CN 201310030438A CN 103147438 A CN103147438 A CN 103147438A
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Abstract
The invention discloses a cast-in-place post-tensioning method-based I-shaped support pile and a manufacturing method of the support pile. According to the support pile, an I-shaped pile body is arranged on a prefabricated template; a plurality of prestressed ribs and non-prestressed ribs are symmetrically distributed on the I-shaped pile body; embedded pipes are coaxially sleeved outside all the prestressed ribs; and a reinforcing part of the I-shaped pile body is provided with embedded irons. The manufacturing method comprises the main steps of manufacturing components such as the prefabricated template and a steel reinforcement framework; erecting the steel reinforcement framework on the prefabricated template; fixing the embedded pipes and the embedded irons on the steel reinforcement framework; pouring concrete on the prefabricated template; plastering and maintaining in sequence after the concrete is poured; performing prestressed tensioning after the concrete strength is reached; and storing for later use after the tensioning is finished. With the mode, the rigidity of the pile body is improved, the durability of the pile body is increased, the vibration and the elastic deformation are reduced, the bending and shear resistance is enhanced, the deformation of a foundation pit can be greatly reduced, and the cost can be reduced by 30-40 percent.
Description
Technical field
The present invention relates to the post-stressed soldier pile engineering pile of holding concurrently, particularly relate to the preparation method based on cast in situs post stretching I shape soldier pile and soldier pile.
Background technology
At present, have in market as the precast concrete piling of foundation pile engineering a variety of, if any all kinds of stakes such as barrette, cast stake (pipe stake, square pipe pile).These types respectively have its excellent, shortcoming, and its applicable engineering specifications is respectively arranged.The cast stake mostly is prestressed concrete pile, has a bearing capacity high, the economic advantage of joint material, but thin hollow because of its wall, the shearing resistance anti-bending strength is poor; Barrette has square and two kinds of rectangles, and it is high that it has a bearing capacity, the advantage that the bending resistance shear behavior is high, but it be solid pile, concrete amount is many, from great, transports inconvenience.Now along with the development of engineering, for constantly satisfying the requirement of engineering, only depend on the piling of these several shapes can not well satisfy engineering and used.
Summary of the invention
The object of the invention is to the deficiency of above-mentioned prior art and provide a kind of manufacture craft simple, the piling that application performance is superior, shearing resistance, bending resistance, tension, compressive property are good, make simple, the preparation method based on cast in situs post stretching I shape soldier pile and soldier pile of material-saving economy.
Purpose of the present invention can reach by following measure: a kind of based on cast in situs post stretching I shape soldier pile, comprise: prefab form, be provided with the I shape pile body on described prefab form, on described I shape pile body, symmetry is laid with many presstressed reinforcing steels and non-prestressing tendon, the outer all concentrics of described presstressed reinforcing steel are arranged with built-in pipe, and the rib of described I shape pile body is provided with embedded iron.
In a preferred embodiment of the present invention, described prefab form is steel matter template.
In a preferred embodiment of the present invention, described rib is located at the middle part of I shape pile body.
In a preferred embodiment of the present invention, described I shape pile body one end is pile top, and the other end is strengthened the upper symmetry of end and is laid with many presstressed reinforcing steels and non-prestressing tendon for strengthening end.
The invention still further relates to a kind of preparation method based on cast in situs post stretching I shape soldier pile, comprise the following steps:
1) make prefab form, cage of reinforcement, built-in pipe and embedded iron;
2) cage of reinforcement is located on prediction module, built-in pipe and embedded iron are fixed on cage of reinforcement;
3) after each parts installation, with concrete casting to the above-mentioned prefab form;
4) wipe one's face successively after concrete casting is completed, maintenance, form removal and visual inspection process;
5) after concrete strength reaches 70%～100%, carry out prestressed stretch-draw;
6) after stretch-draw is completed, deposit standby.
In a preferred embodiment of the present invention, cage of reinforcement comprises the I shape pile body, is furnished with symmetrically many presstressed reinforcing steels and non-prestressing tendon on the I shape pile body.
In a preferred embodiment of the present invention, in step 5), prestressed stretch-draw is tensioned prestressing bar.
In a preferred embodiment of the present invention, during the step 3) placing of concrete, the pouring while vibrating.
The invention has the beneficial effects as follows: the preparation method that the present invention is based on cast in situs post stretching I shape soldier pile and soldier pile has improved the rigidity of pile body, increased the durability of pile body, reduce vibration and elastic deformation, strengthened the bending resistance shear behavior, can greatly reduce the deflection of foundation ditch; Can reduce costs 30-40%; Adopting cast in situs I shape pile body is cast in situs, and then on-the-spot stretch-draw insert in cement mixing method, and pollution-free without mud, the duration shortens greatly, and the civilized construction degree is high; Adopt special steel template, can build sheet pile according to the soldier pile body length in design drawing, reduced the overlap joint supervisor between sheet pile, greatly increased efficiency of construction.
Description of drawings
Fig. 1 is the schematic cross-section of a preferred embodiment of the present invention;
Fig. 2 is the reinforcement end section schematic diagram of a preferred embodiment of the present invention;
In accompanying drawing, the mark of each parts is as follows: 1, I shape pile body, 2, non-prestressing tendon, 3, presstressed reinforcing steel, 4, built-in pipe, 5, embedded iron.
The specific embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made more explicit defining.
See also Fig. 1-Fig. 2,
A kind of based on cast in situs post stretching I shape soldier pile, comprising: prefab form, described prefab form are steel matter template.Can build sheet pile according to the soldier pile body length in design drawing, reduce the overlap joint supervisor between sheet pile, greatly increase efficiency of construction.
Be provided with I shape pile body 1 on prefab form, described I shape pile body 1 one ends are pile top, are convenient to insert in the soil body, and the other end is convenient to lifting and injection for strengthening end.Strengthen the upper symmetry of end and be laid with many presstressed reinforcing steels 3 and non-prestressing tendon 2.
The outer equal concentric of described presstressed reinforcing steel 3 is arranged with built-in pipe 4, is convenient to stretch-draw and grouting reinforcement.The rib of described I shape pile body 1 is provided with embedded iron 5.Described rib is located at the middle part of I shape pile body 1, destroys to prevent lifting and injection process medial end portions pile body.
The invention still further relates to a kind of preparation method based on cast in situs post stretching I shape soldier pile, comprise the following steps:
1) make prefab form, cage of reinforcement, built-in pipe 4 and embedded iron 5; Cage of reinforcement comprises I shape pile body 1, and I shape pile body 1 is made the different length design according to design drawing, is furnished with symmetrically many presstressed reinforcing steels 3 and non-prestressing tendon 2 on I shape pile body 1.
2) cage of reinforcement is located on prediction module, built-in pipe 4 and embedded iron 5 are fixed on corresponding position on cage of reinforcement; Built-in pipe 4 is set in outside presstressed reinforcing steel 3, and embedded iron 5 is located at the rib of I shape pile body 1.
3) after each parts installation, concrete casting to above-mentioned prefab form, is watered while vibrating.
4) wipe one's face successively after concrete casting is completed, maintenance, form removal and visual inspection process.
5) after concrete strength reaches 70%～100%, presstressed reinforcing steel 3 is carried out prestressed stretch-draw.
6) after stretch-draw is completed, deposit standby.
Preparation method of the present invention is compared with bored pile gear soil, Soil-cement sealing with the H shaped steel of inserting in cement mixing method of routine, can reduce costs 30%-40%.
Cast in situs I shape sheet pile is cast in situs, and then on-the-spot stretch-draw insert in cement mixing method, and pollution-free without mud, the duration shortens greatly, and the civilized construction degree is high.
The preparation method that the present invention is based on cast in situs post stretching I shape soldier pile and soldier pile has improved the rigidity of stake greatly, has increased the durability of stake, has reduced vibration and elastic deformation, has strengthened the bending resistance shear behavior.Owing to adopting special steel template, can build sheet pile according to the soldier pile body length in design drawing, reduced the overlap joint supervisor between pile body, saved the time, greatly increased efficiency of construction.
The above is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or equivalent flow process conversion that utilizes manual of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (8)
1. one kind based on cast in situs post stretching I shape soldier pile, it is characterized in that, comprise: prefab form, be provided with the I shape pile body on described prefab form, on described I shape pile body, symmetry is laid with many presstressed reinforcing steels and non-prestressing tendon, the outer all concentrics of described presstressed reinforcing steel are arranged with built-in pipe, and the rib of described I shape pile body is provided with embedded iron.
2. according to claim 1 based on cast in situs post stretching I shape soldier pile, it is characterized in that: described prefab form is steel matter template.
3. according to claim 1 based on cast in situs post stretching I shape soldier pile, it is characterized in that: described rib is located at the middle part of I shape pile body.
4. according to claim 1 based on cast in situs post stretching I shape soldier pile, it is characterized in that: described I shape pile body one end is pile top, and the other end is strengthened the upper symmetry of end and is laid with many presstressed reinforcing steels and non-prestressing tendon for strengthening end.
5. the preparation method based on cast in situs post stretching I shape soldier pile according to claim 1 is characterized in that: comprise the following steps:
1) make prefab form, cage of reinforcement, built-in pipe and embedded iron;
2) cage of reinforcement is located on prediction module, built-in pipe and embedded iron are fixed on cage of reinforcement;
3) after each parts installation, with concrete casting to the above-mentioned prefab form;
4) wipe one's face successively after concrete casting is completed, maintenance, form removal and visual inspection process;
5) after concrete strength reaches 70%～100%, carry out prestressed stretch-draw;
6) after stretch-draw is completed, deposit standby.
6. the preparation method based on cast in situs post stretching I shape soldier pile according to claim 1, it is characterized in that: cage of reinforcement comprises the I shape pile body, is furnished with symmetrically many presstressed reinforcing steels and non-prestressing tendon on the I shape pile body.
7. the preparation method based on cast in situs post stretching I shape soldier pile according to claim 6, it is characterized in that: in step 5), prestressed stretch-draw is tensioned prestressing bar.
8. the preparation method based on cast in situs post stretching I shape soldier pile according to claim 1, is characterized in that: during the step 3) placing of concrete, water while vibrating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310030438XA CN103147438A (en) | 2013-01-28 | 2013-01-28 | Cast-in-place post-tensioning method-based I-shaped support pile and manufacturing method of support pile |
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| CN201310030438XA CN103147438A (en) | 2013-01-28 | 2013-01-28 | Cast-in-place post-tensioning method-based I-shaped support pile and manufacturing method of support pile |
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| CN103147438A true CN103147438A (en) | 2013-06-12 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104878744A (en) * | 2015-05-07 | 2015-09-02 | 成都聚智工业设计有限公司 | Support pile structure based on prestressing technology |
| CN106677163A (en) * | 2016-11-14 | 2017-05-17 | 王立明 | Pipe hoop truss fender pile and auxiliary construction equipment thereof |
| CN107299636A (en) * | 2017-07-11 | 2017-10-27 | 臧金龙 | A kind of I-shaped support pile of pretensioned prestressing high-strength concrete |
| CN111778966A (en) * | 2020-07-06 | 2020-10-16 | 常州市建筑科学研究院集团股份有限公司 | Prefabricated energy pile and manufacturing method thereof |
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| CN2782763Y (en) * | 2005-04-08 | 2006-05-24 | 王伟明 | Pretensioned type steel strand prestressed concrete pipe pile |
| CN101629418A (en) * | 2009-08-03 | 2010-01-20 | 天津市建筑科学研究院 | Post-tensioned prestressing cast pile and construction method thereof |
| JP2010048039A (en) * | 2008-08-25 | 2010-03-04 | Japan Pile Corp | Prestressed reinforced concrete pile |
| CN102518120A (en) * | 2012-01-05 | 2012-06-27 | 上海城地建设发展有限公司 | Prestressed reinforcement and non-prestressed reinforcement combined H-shaped reinforced concrete sheet pile and manufacture method thereof |
| CN102561319A (en) * | 2012-02-06 | 2012-07-11 | 天津建城基业集团有限公司 | Composite soil retaining tubular pile with reinforcing bars and manufacturing method thereof |
| CN102828510A (en) * | 2012-09-14 | 2012-12-19 | 谢建富 | H-shaped support pile and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2782763Y (en) * | 2005-04-08 | 2006-05-24 | 王伟明 | Pretensioned type steel strand prestressed concrete pipe pile |
| JP2010048039A (en) * | 2008-08-25 | 2010-03-04 | Japan Pile Corp | Prestressed reinforced concrete pile |
| CN101629418A (en) * | 2009-08-03 | 2010-01-20 | 天津市建筑科学研究院 | Post-tensioned prestressing cast pile and construction method thereof |
| CN102518120A (en) * | 2012-01-05 | 2012-06-27 | 上海城地建设发展有限公司 | Prestressed reinforcement and non-prestressed reinforcement combined H-shaped reinforced concrete sheet pile and manufacture method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104878744A (en) * | 2015-05-07 | 2015-09-02 | 成都聚智工业设计有限公司 | Support pile structure based on prestressing technology |
| CN104878744B (en) * | 2015-05-07 | 2017-03-01 | 陈祥 | Supporting pile structure based on prestressing technique |
| CN106677163A (en) * | 2016-11-14 | 2017-05-17 | 王立明 | Pipe hoop truss fender pile and auxiliary construction equipment thereof |
| CN107299636A (en) * | 2017-07-11 | 2017-10-27 | 臧金龙 | A kind of I-shaped support pile of pretensioned prestressing high-strength concrete |
| CN111778966A (en) * | 2020-07-06 | 2020-10-16 | 常州市建筑科学研究院集团股份有限公司 | Prefabricated energy pile and manufacturing method thereof |
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Application publication date: 20130612 |