CN104032732B - Cast-type pre-stressed steel plate concrete-pile and construction method thereof and supporting piling wall - Google Patents
Cast-type pre-stressed steel plate concrete-pile and construction method thereof and supporting piling wall Download PDFInfo
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Abstract
The invention discloses a kind of cast-type pre-stressed steel plate concrete-pile and construction method thereof and supporting piling wall, this cast-type pre-stressed steel plate concrete-pile includes the hollow casing body being made up of steel plate, portion is cast-in-place in described hollow casing body concrete and the many presstressed reinforcing steels being arranged in described concrete, the upper end open of described hollow casing body, bottom is enclosed construction.The present invention also provides for the construction method of aforementioned cast-type pre-stressed steel plate concrete-pile and has the supporting piling wall of aforementioned cast-type pre-stressed steel plate concrete-pile.By the way, the cast-type pre-stressed steel plate concrete-pile of the present invention can require field fabrication according to design, it is to avoid it is unfavorable that pile body spreading and transport bring, save cost of transportation, on the premise of ensureing that pattern foundation pit supporting structure is safe and reliable, it is possible to reduce engineering cost, and easy construction.
Description
Technical field
The present invention relates to all construction project fields such as building, municipal administration, traffic, water conservancy, electric power, industry, particularly relate to a kind of cast-type pre-stressed steel plate concrete-pile and construction method thereof and supporting piling wall.
Background technology
Base pit engineering technical scheme mainly accounted in terms of security reliability, economic rationality, difficulty of construction, construction period etc..In China coast periphery soft clay area to SMW engineering method stake, bored concrete pile, diaphram wall Application comparison many.
Shaped steel Soil-cement Wall, commonly referred to SMW engineering method, is a kind of compound gear soil water-stop structure being inserted into shaped steel formation at the triaxial cement mixing pile being socketed continuously.Three axes agitating pile rig is i.e. utilized to cut earth in the layer of original place, rig leading portion low pressure injects cement grout simultaneously, it is sufficiently stirred for forming the cement earth pile column barricade that water-resisting property is higher with the chopping soil body, before cement grout not yet hardens, inserts a kind of Construction Technique of Underground Works of shaped steel.SMW engineering method stake grows up based on Deep Mixing Pile Construction, and this structure has given full play to the mechanical characteristic of soil cement mixture and shaped steel, has economy, the duration is short, water-resisting property is strong, to features such as surrounding environment influence are little.H profile steel, after basement construction completes, can be extracted from cement mixing method by shaped steel Soil-cement Wall enclosed structure, reach reclaim and again with purpose.Therefore this engineering method compared with conventional maintenance form not only the duration short, work progress is pollution-free, place neatly clean, noise is little, and can save social resources, it is to avoid safeguard that body is forever left in underground after basement construction, become underground obstacle.Building a conservation-minded society in promotion, it is achieved today of sustainable development, this engineering method of popularization and application more has realistic meaning.
But SMW engineering method stake has the disadvantage in that in SMW engineering method stake and is used mostly H profile steel, the cost of H profile steel is high, and during actual architectural engineering uses, freight and the lease expenses of shaped steel are the highest, especially the duration longer in the case of, the lease expenses of shaped steel can be greatly increased use cost.Additionally shaped steel is typically after basement construction terminates, and needs to pull out, may result in the bending of shaped steel, breaks equal loss, can be greatly increased again engineering cost when place limits and cannot extract.
The reinforcing bar of bored concrete pile and the consumption of concrete are more, also need additionally to arrange water-stop curtain, construct cumbersome, and the impact on environment is bigger.
Therefore, supporting construction used in existing architecture Foundation Pit Engineering can't fully meet engineering demand, needs to develop a kind of novel foundation pit supporting construction, safe and reliable, economical rationality, easy construction.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of cast-type pre-stressed steel plate concrete-pile and construction method thereof and supporting piling wall, cast-type pre-stressed steel plate concrete-pile used can require field fabrication according to design, avoid pile body spreading unfavorable with what transport brought, save cost of transportation, on the premise of ensureing that pattern foundation pit supporting structure is safe and reliable, engineering cost, and easy construction can be reduced.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provide a kind of cast-type pre-stressed steel plate concrete-pile, including: the hollow casing body that is made up of steel plate, the concrete layer that portion is cast-in-place in described hollow casing body and the many presstressed reinforcing steels being arranged in described concrete layer, the upper end open of described hollow casing body, bottom is enclosed construction.
In a preferred embodiment of the present invention, the cross section of described hollow casing body is dumbbell shape, including top flange, lower flange and the web being arranged between described top flange, lower flange.
In a preferred embodiment of the present invention, described top flange, lower flange and web are all rectangle, and described top flange be arranged in parallel with lower flange, and described web is vertically arranged with top flange.
In a preferred embodiment of the present invention, described top flange and lower flange are rectangle, and described web includes two symmetrically arranged indent circular arc steel plates.
In a preferred embodiment of the present invention, described presstressed reinforcing steel is arranged in top flange and lower flange, and the presstressed reinforcing steel in top flange and the presstressed reinforcing steel in lower flange are symmetrical arranged.
In a preferred embodiment of the present invention, described presstressed reinforcing steel includes and the having adhesive section and expose the soap-free emulsion polymeization section of concrete of concrete tight bond.
In a preferred embodiment of the present invention, the bottom of described hollow casing body is pyramid enclosed construction.
Present invention also offers the construction method of above-mentioned cast-type pre-stressed steel plate concrete-pile, including step in detail below:
A, in described hollow casing body, side arranges a template, has multiple conduit matched with presstressed reinforcing steel position in described template；
B, employing cement-soil stirring pile construction machinery are constructed, and form cement mixing method；
C, hollow casing body is put in cement mixing method together with template, and be respectively put into presstressed reinforcing steel in each conduit；
D, from hollow casing body upper end open to its internal casting concrete, template and conduit are lifted up in concreting process, and while concreting completes, template and conduit are extracted the most completely.
In a preferred embodiment of the present invention, in step d, template and conduit are lifted up by bobbing machine.
Present invention also offers a kind of supporting piling wall with above-mentioned cast-type pre-stressed steel plate concrete-pile, described supporting piling wall includes several cement mixing methods and the cast-type pre-stressed steel plate concrete-pile being arranged in described cement mixing method.
The method have the advantages that
1, the cast-type pre-stressed steel plate concrete-pile of the present invention, can reduce cost of transportation according to design requirement, cast in situs in cement mixing method, it is to avoid the trouble of pile body spreading.
2, compared with cast-in-situ bored pile, the cast-type pre-stressed steel plate concrete-pile of the present invention, the reinforcing bar used and the consumption of concrete are few, cost-effective, and effect on environment is little.
3, compared with SMW engineering method stake, the cast-type pre-stressed steel plate concrete-pile of the present invention, relative to shaped steel, add intensity, reduce cost of transportation, and need not pull out, it is to avoid engineering complete after shaped steel pull out loss problem.
4, the supporting piling wall of the present invention, uses cast-type pre-stressed steel plate concrete-pile, has preferable bending rigidity, and supporting intensity is high.
In sum, cast-type pre-stressed steel plate concrete-pile of the present invention and construction method thereof and supporting piling wall, i.e. ensure the safe and reliable of foundation pit supporting construction, there is again good economic benefit, easy construction, environmental effect is little, meets the demand that base pit engineering is built further.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in describing embodiment below, the required accompanying drawing used is briefly described, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the cross section structure schematic diagram one of described cast-type pre-stressed steel plate concrete-pile；
Fig. 2 is the cross section structure schematic diagram two of described cast-type pre-stressed steel plate concrete-pile；
Fig. 3 is the cross section structure schematic diagram three of described cast-type pre-stressed steel plate concrete-pile；
Fig. 4 is the structural representation of a preferred embodiment of supporting piling wall of the present invention；
Fig. 5 is the structural representation of another preferred embodiment of supporting piling wall of the present invention.
Detailed description of the invention
Technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, all other embodiments that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Referring to Fig. 1 to Fig. 5, the embodiment of the present invention includes:
Embodiment one:
Refering to Fig. 1 and Fig. 4, a kind of cast-type pre-stressed steel plate concrete-pile, including: the hollow casing body 11 that is made up of steel plate, at the internal cast-in-place concrete layer 12 of described hollow casing body 11 and many presstressed reinforcing steels 13 being arranged in described concrete layer 12, the upper end open of described hollow casing body 11, bottom is enclosed construction, this cast-type pre-stressed steel plate concrete-pile is to use cast in situs method to make, and reduces cost of transportation, easy construction.
The steel plate wall thickness of composition hollow casing body 11 is 1.5mm ~ 30mm, sets according to different architectural engineerings.
The cross section of described hollow casing body 11 is dumbbell shape, including top flange 111, lower flange 112 and the web 113 being arranged between described top flange 111, lower flange 112, rational in infrastructure, is obtained in that higher intensity after casting concrete.
Described top flange 111, lower flange 112 and web 113 are all rectangle, and described top flange 111 be arranged in parallel with lower flange 112, and described web 113 is vertically arranged with top flange 111.
Described presstressed reinforcing steel 13 is arranged in top flange 111 and lower flange 112, and the presstressed reinforcing steel in top flange and the presstressed reinforcing steel in lower flange are symmetrical arranged.
Described presstressed reinforcing steel 13 includes and the having adhesive section and expose the soap-free emulsion polymeization section of concrete of concrete tight bond, described in have adhesive section and concrete tight bond, soap-free emulsion polymeization section is used for reaching the after-applied prestressing force of Shi Hanzhang intensity at pile body.
As shown in Figure 4, present invention also offers a kind of supporting piling wall with above-mentioned cast-type pre-stressed steel plate concrete-pile, described supporting piling wall includes several cement mixing methods and the cast-type pre-stressed steel plate concrete-pile being arranged in described cement mixing method.
Described cement mixing method uses triaxial cement mixing pile construction machinery to construct, process three cement mixing methods being mutually twisted every time, it is respectively front stake, central pile and rear stake, form a Soil-cement pile element, form body of wall, by multiple form of construction work in described cement mixing method continuously or interval arranges cast-type pre-stressed steel plate concrete-pile.
Described supporting piling wall is formed by multiple Soil-cement pile element Heterogeneous Permutations, the rear stake of previous Soil-cement pile element is mutually twisted with the front stake of later Soil-cement pile element, form alternating expression structure, enhance bending rigidity and the Lateral resisting ability of entirety.During practice of construction, undersized cast-type pre-stressed steel plate concrete-pile can be set in single cement mixing method, the cement mixing method being mutually twisted at dislocation arranges large-sized cast-type pre-stressed steel plate concrete-pile.
Embodiment two:
Refering to Fig. 2 and Fig. 5, a kind of cast-type pre-stressed steel plate concrete-pile, including: the hollow casing body 21 that is made up of steel plate, at the internal cast-in-place concrete layer 22 of described hollow casing body 21 and many presstressed reinforcing steels 23 being arranged in described concrete layer 22, the upper end open of described hollow casing body 21, bottom is enclosed construction, this cast-type pre-stressed steel plate concrete-pile is to use cast in situs method to make, and reduces cost of transportation, easy construction.
The cross section of described hollow casing body 21 is dumbbell shape, including top flange 211, lower flange 212 and the web 213 being arranged between described top flange 211, lower flange 212, rational in infrastructure, is obtained in that higher intensity after casting concrete.
Described top flange 211 and lower flange 212 are rectangle, and described web 213 includes two symmetrically arranged indent circular arc steel plates 214.
Described presstressed reinforcing steel 23 is arranged in top flange 211 and lower flange 212, and the presstressed reinforcing steel in top flange and the presstressed reinforcing steel in lower flange are symmetrical arranged.
Described presstressed reinforcing steel 23 includes and the having adhesive section and expose the soap-free emulsion polymeization section of concrete of concrete tight bond, described in have adhesive section and concrete tight bond, soap-free emulsion polymeization section is used for reaching the after-applied prestressing force of Shi Hanzhang intensity at pile body.
As it is shown in figure 5, present invention also offers a kind of supporting piling wall with above-mentioned cast-type pre-stressed steel plate concrete-pile, described supporting piling wall includes several cement mixing methods and the cast-type pre-stressed steel plate concrete-pile being arranged in described cement mixing method.
Described cement mixing method uses triaxial cement mixing pile construction machinery to construct, process three cement mixing methods being mutually twisted every time, it is respectively front stake, central pile and rear stake, form a Soil-cement pile element, form body of wall, by multiple form of construction work in described cement mixing method continuously or interval arranges cast-type pre-stressed steel plate concrete-pile.
Described supporting piling wall includes being arranged in order, by multiple, the cement soil wall matrix that the cement mixing method being mutually twisted forms, it is interval with multiple Soil-cement pile element being parallel to described cement soil wall matrix in described cement soil wall matrix side, spaced apart can be a cement mixing method or multiple cement mixing method, depending on length according to actual cement soil wall matrix, three stakes of described Soil-cement pile element are mutually twisted with three stakes on cement soil wall matrix respectively, form raised type structure, in described cement mixing method continuously or be arranged at intervals with cast-type pre-stressed steel plate concrete-pile, enhance bending rigidity and the Lateral resisting ability of entirety.During practice of construction, undersized cast-type pre-stressed steel plate concrete-pile can be set in single cement mixing method, the cement mixing method being mutually twisted at raised type structure arranges large-sized cast-type pre-stressed steel plate concrete-pile.
Embodiment three:
As it is shown on figure 3, the third embodiment of the present invention is essentially identical with first embodiment, differ primarily in that the both sides of described top flange and lower flange are changed into arc-shaped edges by original straight flange.
Present invention also offers the construction method of above-mentioned cast-type pre-stressed steel plate concrete-pile, including step in detail below:
A, in described hollow casing body, side arranges a template, has multiple conduit matched with presstressed reinforcing steel position in described template；
B, employing cement-soil stirring pile construction machinery are constructed, and form cement mixing method；
C, hollow casing body is put in cement mixing method together with template, and it is respectively put into presstressed reinforcing steel in each conduit, the bottom of described hollow casing body is pyramid enclosed construction, avoid hollow casing body during insertion, cement mortar in soil cement enters in hollow casing body, affects the intensity of high-strength concrete；
The bottom of described hollow casing body is pyramid enclosed construction, also makes hollow casing body put into the process of cement mixing method more smooth and easy；
D, from hollow casing body upper end open to its internal casting concrete, template and conduit are lifted up in concreting process, while concreting completes, template and conduit are extracted the most completely, described template and conduit are lifted up by bobbing machine, also by the closely knit concrete of the vibration tamping of template while lifting.
The method have the advantages that
1, the cast-type pre-stressed steel plate concrete-pile of the present invention, can reduce cost of transportation according to design requirement, cast in situs in cement mixing method, it is to avoid the trouble of pile body spreading.
2, compared with cast-in-situ bored pile, the cast-type pre-stressed steel plate concrete-pile of the present invention, the reinforcing bar used and the consumption of concrete are few, cost-effective, and effect on environment is little.
3, compared with SMW engineering method stake, the cast-type pre-stressed steel plate concrete-pile of the present invention, relative to shaped steel, add intensity, reduce cost of transportation, and need not pull out, it is to avoid engineering complete after shaped steel pull out loss problem.
4, the supporting piling wall of the present invention, uses cast-type pre-stressed steel plate concrete-pile, has preferable bending rigidity, and supporting intensity is high.
In sum, cast-type pre-stressed steel plate concrete-pile of the present invention and construction method thereof and supporting piling wall, i.e. ensure the safe and reliable of foundation pit supporting construction, there is again good economic benefit, easy construction, environmental effect is little, meets the demand that base pit engineering is built further.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the invention content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, the most in like manner it is included in the scope of patent protection of the present invention.
Claims (8)
1. a cast-type pre-stressed steel plate concrete-pile, it is characterised in that including: the hollow casing body that is made up of steel plate,
The concrete layer that in described hollow casing body, portion is cast-in-place and the many presstressed reinforcing steels being arranged in described concrete layer, described
The upper end open of hollow casing body, bottom is enclosed construction；
The construction method of described cast-type pre-stressed steel plate concrete-pile, including step in detail below: a, at described hollow casing
Internal side arranges a template, has multiple conduit matched with presstressed reinforcing steel position in described template；B, employing soil cement stir
Mix pile driving construction machinery to construct, form cement mixing method；C, hollow casing body is put into Soil-cement together with template
In Zhuan, and it is respectively put into presstressed reinforcing steel in each conduit；D, from hollow casing body upper end open to its internal casting concrete,
Template and conduit are lifted up by bobbing machine in concreting process, while concreting completes, and template and leading
Pipe is extracted the most completely.
Cast-type pre-stressed steel plate concrete-pile the most according to claim 1, it is characterised in that described hollow casing body
Cross section is dumbbell shape, including top flange, lower flange and the web being arranged between described top flange, lower flange.
Cast-type pre-stressed steel plate concrete-pile the most according to claim 2, it is characterised in that described top flange, bottom wing
Edge and web are all rectangle, and described top flange be arranged in parallel with lower flange, and described web is vertically arranged with top flange.
Cast-type pre-stressed steel plate concrete-pile the most according to claim 2, it is characterised in that described top flange and bottom wing
Edge is rectangle, and described web includes two symmetrically arranged indent circular arc steel plates.
Cast-type pre-stressed steel plate concrete-pile the most according to claim 2, it is characterised in that described presstressed reinforcing steel is arranged
In top flange and lower flange, and the presstressed reinforcing steel in top flange and the presstressed reinforcing steel in lower flange are symmetrical arranged.
Cast-type pre-stressed steel plate concrete-pile the most according to claim 1, it is characterised in that described presstressed reinforcing steel includes
With the having adhesive section and expose the soap-free emulsion polymeization section of concrete of concrete tight bond.
Cast-type pre-stressed steel plate concrete-pile the most according to claim 1, it is characterised in that described hollow casing body
Bottom is pyramid enclosed construction.
8. a supporting piling wall, it is characterised in that described supporting piling wall includes several cement mixing methods and is arranged on described
Cast-type pre-stressed steel plate concrete-pile in cement mixing method, described cast-type pre-stressed steel plate concrete-pile is that right is wanted
Seek the cast-type pre-stressed steel plate concrete-pile described in 1 ~ 7 any one.
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| CN104032732B true CN104032732B (en) | 2016-11-16 |
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| CN113309128B (en) * | 2021-05-24 | 2022-09-16 | 北京建材地质工程有限公司 | Construction method of dumbbell-shaped cement soil curtain pile in peat soil stratum |
| CN113529790B (en) * | 2021-07-26 | 2022-08-26 | 中铁四局集团第五工程有限公司 | Underground driveway prestressed side wall and tensioning construction method thereof |
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| CN203855955U (en) * | 2014-05-04 | 2014-10-01 | 江苏鼎达建筑新技术有限公司 | Cast-in-place pre-stress steel plate concrete pile and support pile wall |
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2014
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Patent Citations (7)
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| JPH06136745A (en) * | 1992-04-28 | 1994-05-17 | J D F:Kk | Construction method for hollow widened bottom cast-in-place concrete pile |
| CN2298285Y (en) * | 1997-03-26 | 1998-11-25 | 福建建专基础工程公司 | Deformed sectional bored concrete pile |
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Address after: 213015 Jiangsu province Changzhou City Zhonglou District Mushu Road No. 10 Patentee after: Jiangsu Dingda Building New Technology Co., Ltd. Patentee after: Changzhou Institute of building science group Limited by Share Ltd Address before: 213015 Jiangsu province Changzhou City Zhonglou District Mushu Road No. 10 Patentee before: Jiangsu Dingda Building New Technology Co., Ltd. Patentee before: Changzhou Architectural Research Institute Co., Ltd. |