CN101979777B - Construction method of combined underground continuous wallboard of cast-in-place hollow square pile - Google Patents
Construction method of combined underground continuous wallboard of cast-in-place hollow square pile Download PDFInfo
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- CN101979777B CN101979777B CN 201010501642 CN201010501642A CN101979777B CN 101979777 B CN101979777 B CN 101979777B CN 201010501642 CN201010501642 CN 201010501642 CN 201010501642 A CN201010501642 A CN 201010501642A CN 101979777 B CN101979777 B CN 101979777B
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Abstract
The invention discloses a cast-in-place hollow square pile and a combined underground continuous wallboard and a construction method thereof. The section of the cast-in-place hollow square pile has a hollow structure in a shape like a Chinese character hui; a square reinforcement cage (1-1) is arranged between an inner wall and an outer wall of the cast-in-place hollow square pile; concrete (1-2) is filled between the inner wall and the outer wall of the cast-in-place hollow square pile (1) and coats the square reinforcement cage (1-1); and a pile tip (7) in a shape like a Chinese character hui is arranged on the lower part of the cast-in-place hollow square pile (1). The continuous wallboard consists of a plurality of cast-in-place hollow square piles (1) arranged in parallel; profile steel (8) is arranged between every two neighboring hollow square piles (1); the pile tip (7) in a shape like the Chinese character hui positioned on the lower part of the cast-in-place hollow square pile (1) comprises an inclined tip (7-1), namely one side of the pile tip of the next hollow square pile contacted with the last hollow square pile is parallel to a side wall of the hollow square pile (1); an inclined plane of the pile tip is inwards inclined on a single side; and the pile tips of the other three sides are in v-shaped inclination on two sides. The square pile can be independently used as an engineering pile or a support pile, and also can be arranged and constructed to form the underground continuous wallboard.
Description
Technical field
The present invention relates to stake and foundation pit supporting construction in the civil construction project, particularly a kind of hollow square pile, and with the steel bar concrete underground continuous wall plate of this square pile formation.
Background technology
At present in foundation pit supporting construction, method commonly used has bored pile, diaphragm wall, the forms such as SMW engineering method, wherein the drill-pouring pilework can only be kept off soil, can not sealing, still need and join in addition water-stopping structure, can finish the prop function, although the SMW engineering method can be accomplished to keep off native sealing and be united two into one, but because its rigidity is little, distortion is large and be subject to many restrictions, and traditional continuous underground wall structure namely can keep off soil again can sealing, but mud displacement is large during its construction, cost is higher again, is difficult to use in the general engineering go the Prefabricated pile composite supporting panel (patent No. 200620125443.4) of my invention, it is large to have the supporting rigidity, economical reliable, easy construction, the gear soil plurality of advantages such as unite two into one that blocks water, but because pile tube is prefabricated units, it is not very flexible that the strength and stiffness of supporting wallboard are regulated.Some ' worker ' is although that the font mould can be accomplished gear soil, sealing, wall body structure is three-in-one, but because it is the grid diaphragm wall that is formed by ' worker ' font mould, his binding site is the two Ge Yi Vela of ' worker ' font, bonding surface less, binding site become the weak link of sealing easily.
Summary of the invention
Technical problem: purpose of the present invention aims to provide a kind of job practices of combined underground continuous wallboard of cast-in-place hollow square pile, this square pile can independently be used as engineering pile or soldier pile, also can arrange construction and form underground continuous wall plate, it has overcome the deficiencies in the prior art, when combined hollow square pile underground continuous wall plate is used in supporting and protection structure, can accomplish gear soil, sealing, structure is three-in-one, and rigidity is large, in-site pouring, reinforcing bar is with the soil property situation, the size configure of soil pressure, strength and stiffness are easy to regulate, and construction costs is low, but the decrease engineering cost.
Technical scheme: it is square that cast-in-place hollow square pile of the present invention is long (accurate long), and the core of stake is the soil body, during independent the use, can be used as engineering pile or soldier pile; When continuous arrangement is constructed, namely formed combined hollow square pile underground continuous wall plate, be the soil body in the hollow core portion of combined hollow square pile, continuous wall plate is according to stressed size configure reinforcing bar, and concreting, namely can keep off native sealing thereby form, can bear again the supporting and protection structure of external force.
The cross section of cast-in-place hollow square pile of the present invention is three-back-shaped hollow-core construction, be provided with square reinforcing cage between the inwall of this cast-in-place hollow square pile and the outer wall, be filled between the inwall of hollow square pile and the outer wall and wrap up square reinforcing cage by concrete, be provided with three-back-shaped pile top in the bottom of hollow square pile.
The combined underground continuous wallboard of hollow square pile of the present invention is combined by a plurality of cast-in-place hollow square piles that are arranged side by side, between per two adjacent hollow square piles, be provided with shaped steel, the three-back-shaped pile top that is positioned at hollow square pile bottom has partially point, be a rear hollow square pile pile top with the contacted side of previous hollow square pile, parallel sidewalls with the hollow square pile, the inclined-plane of pile top is monolateral inside skew back, and the pile top on other three limits is that v font two limits are oblique.
The job practices of the combined underground continuous wallboard of cast-in-place hollow square pile of the present invention is:
1) with lifting appliance sling vibrations immersed tube equipment, clamper and three-back-shaped template;
2) will have the below that partially sharp three-back-shaped pile top is suspended on three-back-shaped template with thin wire;
3) mobile lifting appliance, slinging is provided with the three-back-shaped template that hangs three-back-shaped pile top, so that three-back-shaped pile top places the precalculated position;
4) starting shock immersed tube equipment sinks to underground predetermined absolute altitude with first pile top and first three-back-shaped template;
5) repeat above-mentioned 1～4 the step, sink to respectively again second and third ... the three-back-shaped template of root and three-back-shaped pile top,
6) in first three-back-shaped template, place square reinforcing cage, and the perfusion concrete;
7) starting shock immersed tube equipment promotes first three-back-shaped template while vibrating, and forms first three-back-shaped square pile;
8) repeat above-mentioned 6～7 the step, form second and third ... the three-back-shaped square pile of root, and after extracting three-back-shaped template, insert in the concrete that does not still solidify with being about to shaped steel,
So far, namely finish the construction of combined cast-in-place hollow square pile underground continuous wall plate.
Described three-back-shaped template is provided with the first guided way, the second guided way; Wherein, the first guided way on the second guided way on first three-back-shaped template and the second three-back-shaped template is in mating connection, the first guided way on the second guided way on second three-back-shaped template and the 3rd three-back-shaped template is in mating connection, so postpones.
Beneficial effect: with traditional diaphragm wall, and with I the application grid-like underground continuous wall plate compare, the present invention has plurality of advantages:
1) because the core of combined hollow square pile underground continuous wall plate is undisturbed soil, can economical with materials, reduce cost.
2) water not in the process of construction, not only using water wisely, but also do not have discharging and the transportation problem of mud.
3) owing to having adopted steel form, so overcome collapse hole and the undergauge problem of traditional diaphragm wall.
4) this supporting and protection structure gear soil, sealing and outer wall of basement are three-in-one, save space, save cost.
5) contact surface between two ' returning ' fonts is than large many of the contact surface between two ' worker ' fonts, thereby greatly strengthened the anti-permeability performance of contact surface.
6) square-section is large than the intensity of I-shaped cross-section, good rigidity, and globality is high, and therefore, the performance by I-shaped diaphragm wall that forms is good for the diaphragm wall that is formed by the hollow square pile.
Description of drawings
Fig. 1 is three-back-shaped template schematic cross-section.
Fig. 2 is hollow square pile schematic cross-section.
Fig. 3 is the three-back-shaped template schematic cross-section of tape guide rail.
Fig. 4 is three-back-shaped pile top schematic cross-section.
Fig. 5 has the partially three-back-shaped pile top schematic cross-section of point.
Fig. 6 is that construction machinery and template concern schematic diagram.
Fig. 7 is combined hollow square pile underground continuous wall plate schematic cross-section.
Have among the above figure: hollow square pile 1, square reinforcing cage 1-1, concrete 1-2, lifting appliance 2, vibrations immersed tube equipment 3, clamper 4, the three-back-shaped template 5 of tape guide rail, the first guided way 5-1, the second guided way 5-2, thin wire 6, three-back-shaped pile top 7, partially sharp 7-1, shaped steel 8.
The specific embodiment
The cross section of cast-in-place hollow square pile of the present invention is three-back-shaped hollow-core construction, be provided with square reinforcing cage 1-1 between the inwall of this hollow square pile 1 and the outer wall, be filled between the inwall of hollow square pile and the outer wall and wrap up square reinforcing cage 1-1 by concrete 1-2, be provided with three-back-shaped pile top 7 in the bottom of hollow square pile 1.
Cast-in-place hollow square pile combined underground continuous wallboard of the present invention is combined by a plurality of cast-in-place hollow square piles that are arranged side by side 1, between per two adjacent hollow square piles 1, be provided with shaped steel 8, the three-back-shaped pile top 7 that is positioned at the bottom of hollow square pile 1 has partially sharp 7-1, be a rear hollow square pile pile top with the contacted side of previous hollow square pile, parallel sidewalls with hollow square pile 1, the inclined-plane of pile top is monolateral inside skew back, and the pile top on other three limits is that v font two limits are oblique.A plurality of such cast-in-place hollow square piles are constructed continuously and have been formed underground continuous wall plate.
Embodiment 1
Certain engineering adopts cast-in-place hollow square pile, and the sectional dimension of stake is: 1200x1000mm, and square pile wall thickness 200mm, arrangement of reinforcement 16@20, iliacus@10@150, concrete adopts c30, and the long 36m of stake is friction pile.
Certain Deep Foundation Pit cutting depth 15.8m, adopt the cast-in-place hollow square pile underground continuous wall plate to carry out supporting, continuous wall plate gross thickness 1200mm, inside and outside wall board thickness is 220mm, floor thickness is 440mm, and each three-back-shaped inside and outside wall board is joined longitudinal reinforcement and is 10@20, and floor is joined longitudinal reinforcement 4@16, stirrup adopts A8@150, and pile top adopts has the partially three-back-shaped pile top of steel bar concrete of point.
Above embodiment 2 combined cast-in-place hollow square pile diaphragm wall board manufacturing methods are:
1) with lifting appliance 2 sling vibrations immersed tube equipment 3, clamper 4 and three-back-shaped template 5;
The three-back-shaped pile top 7 that 2) will have a partially sharp 7-1 with thin wire 6 is suspended on the below of three-back-shaped template 5;
3) mobile lifting appliance, slinging is provided with the three-back-shaped template 5 that hangs three-back-shaped pile top 7, so that three-back-shaped pile top 7 places the precalculated position;
4) starting shock immersed tube equipment sinks to underground predetermined absolute altitude with first pile top and first three-back-shaped template;
5) repeat above-mentioned 1～4 the step, sink to respectively again second and third ... the three-back-shaped template 5 of root and three-back-shaped pile top (7),
6) in first three-back-shaped template, place square reinforcing cage 1-1, and perfusion concrete 1-2;
7) starting shock immersed tube equipment promotes first three-back-shaped template 5 while vibrating, and forms first three-back-shaped square pile;
8) repeat above-mentioned 6～7 steps, form second and third, the three-back-shaped square pile of root, and after extracting three-back-shaped template, insert in the concrete that does not solidify with being about to shaped steel (8),
So far, namely finish the construction of combined hollow square pile underground continuous wall plate.
Described three-back-shaped template 5 is provided with the first guided way 5-1, the second guided way 5-2; Wherein, the first guided way 5-1 on the second guided way 5-2 on first three-back-shaped template 6 and the second three-back-shaped template is in mating connection, the first guided way 5-1 on the second guided way 5-2 on second three-back-shaped template and the 3rd three-back-shaped template 6 is in mating connection, so postpones.
In the cast-in-place hollow square pile combined underground continuous wallboard of the present invention, the first guided way 5-1, the second guided way 5-2 and three-back-shaped template weld together, when implementing, first with lifting appliance 2 sling vibrations immersed tube equipment 3, clamper 4 and three-back-shaped template 5, the three-back-shaped pile top 7 that will have a partially sharp 7-1 with thin wire 6 is suspended on the below of three-back-shaped template 5; Mobile lifting appliance, sling and be provided with the three-back-shaped template 5 that hangs three-back-shaped pile top 7, so that three-back-shaped pile top 7 places the precalculated position, starting shock immersed tube equipment sinks to underground predetermined absolute altitude with first pile top and first three-back-shaped template, the guide rail 5-2 of second template is inserted in the guide rail 5-1 of first template, sink to respectively so again second and third ... the three-back-shaped template 5 of root and three-back-shaped pile top 7; Then in first three-back-shaped template, place square reinforcing cage 1-1, and perfusion concrete 1-2, starting shock immersed tube equipment promotes first three-back-shaped template 5 while vibrating, form first three-back-shaped square pile, repeat above-mentioned steps, form the three-back-shaped square pile of second and third root, and after extracting three-back-shaped template, insert in the concrete that does not solidify with being about to shaped steel 8 ..., so circulation, the combined underground continuous wallboard of formation cast-in-place hollow square pile.
Claims (2)
1. the job practices of the combined underground continuous wallboard of a cast-in-place hollow square pile, it is characterized in that this continuous wall plate is combined by a plurality of cast-in-place hollow square piles that are arranged side by side (1), between per two adjacent hollow square piles (1), be provided with shaped steel (8), the three-back-shaped pile top (7) that is positioned at hollow square pile (1) bottom has partially point (7-1), be a rear hollow square pile pile top with the contacted side of previous hollow square pile, parallel sidewalls with hollow square pile (1), the inclined-plane of pile top is monolateral inside skew back, and the pile top on other three limits is that v font two limits are oblique; Wherein, the cross section of cast-in-place hollow square pile is three-back-shaped hollow-core construction, be provided with square reinforcing cage (1-1) between the inwall of this cast-in-place hollow square pile (1) and the outer wall, be filled between the inwall of hollow square pile and the outer wall and wrap up square reinforcing cage (1-1) by concrete (1-2), be provided with three-back-shaped pile top (7) in the bottom of hollow square pile (1);
This diaphragm wall board manufacturing method is:
1) with lifting appliance (2) sling vibrations immersed tube equipment (3), clamper (4) and three-back-shaped template (5);
The three-back-shaped pile top (7) that 2) will have partially a point (7-1) with thin wire (6) is suspended on the below of three-back-shaped template (5);
3) mobile lifting appliance, slinging is provided with the three-back-shaped template (5) that hangs three-back-shaped pile top (7), so that pile top (7) places the precalculated position;
4) starting shock immersed tube equipment sinks to underground predetermined absolute altitude with first pile top and first three-back-shaped template;
5) repeat above-mentioned 1～4 the step, sink to respectively again second and third ... the three-back-shaped template of root (5) and three-back-shaped pile top (7),
6) in first three-back-shaped template, place square reinforcing cage (1-1), and perfusion concrete (1-2);
7) starting shock immersed tube equipment promotes first three-back-shaped template (5) while vibrating, and forms first three-back-shaped square pile;
8) repeat above-mentioned 6～7 the step, form second and third ... the three-back-shaped square pile of root, and after extracting three-back-shaped template, insert in the concrete that does not still solidify with being about to shaped steel (8),
So far, namely finish the construction of combined cast-in-place hollow square pile underground continuous wall plate.
2. the job practices of cast-in-place hollow square pile combined underground continuous wallboard according to claim 1 is characterized in that described three-back-shaped template (5) is provided with the first guided way (5-1), the second guided way (5-2); Wherein, the second guided way (5-2) on first three-back-shaped template is in mating connection with the first guided way (5-1) on second three-back-shaped template, the second guided way (5-2) on second three-back-shaped template is in mating connection with the first guided way (5-1) on the 3rd three-back-shaped template, so postpones.
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| CN 201010501642 CN101979777B (en) | 2010-09-29 | 2010-09-29 | Construction method of combined underground continuous wallboard of cast-in-place hollow square pile |
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| CN 201010501642 CN101979777B (en) | 2010-09-29 | 2010-09-29 | Construction method of combined underground continuous wallboard of cast-in-place hollow square pile |
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| CN101979777B true CN101979777B (en) | 2013-01-16 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102191778A (en) * | 2011-04-15 | 2011-09-21 | 傅健 | Construction method of immersed-tube compress soil-free underground continuous wall |
| CN102535446B (en) * | 2012-02-20 | 2014-06-11 | 中交第一航务工程勘察设计院有限公司 | Large-cross-section driven-casing cast-in-place post-grouted concrete hollow square pile and production method thereof |
| CN107059842B (en) * | 2017-03-15 | 2022-05-31 | 宁波建工工程集团有限公司 | Matched construction equipment and construction method for prefabricated wall body for underground continuous wall construction |
| CN106930286B (en) * | 2017-03-19 | 2019-05-03 | 福建永强岩土股份有限公司 | All steel mould square-outside and round-inside hollow square pile Combined type underground diaphragm wall and its construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB430378A (en) * | 1934-04-12 | 1935-06-18 | British Steel Piling Co Ltd | Improvements in and relating to concrete piles and columns |
| CN2346836Y (en) * | 1998-09-18 | 1999-11-03 | 孔清华 | Steel concrete large section hollow square pile |
| CN1265439A (en) * | 2000-04-04 | 2000-09-06 | 吕怀民 | Anti-seeping hollow pile |
| CN2661771Y (en) * | 2003-12-05 | 2004-12-08 | 郭兆泉 | Reinforced concrete hollow pile technology adopting vibrating tube-sinking cast-in-situ ram machine |
| CN201010901Y (en) * | 2007-01-29 | 2008-01-23 | 同济大学 | Inscribed polygon prestressed steel concrete hollow square pile |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08260458A (en) * | 1995-03-22 | 1996-10-08 | Hideji Okamoto | Foundation pile |
| CN201865098U (en) * | 2010-11-17 | 2011-06-15 | 卫龙武 | Concrete pile with square-hole-shaped cross section and assembled wallboard thereof |
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- 2010-09-29 CN CN 201010501642 patent/CN101979777B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB430378A (en) * | 1934-04-12 | 1935-06-18 | British Steel Piling Co Ltd | Improvements in and relating to concrete piles and columns |
| CN2346836Y (en) * | 1998-09-18 | 1999-11-03 | 孔清华 | Steel concrete large section hollow square pile |
| CN1265439A (en) * | 2000-04-04 | 2000-09-06 | 吕怀民 | Anti-seeping hollow pile |
| CN2661771Y (en) * | 2003-12-05 | 2004-12-08 | 郭兆泉 | Reinforced concrete hollow pile technology adopting vibrating tube-sinking cast-in-situ ram machine |
| CN201010901Y (en) * | 2007-01-29 | 2008-01-23 | 同济大学 | Inscribed polygon prestressed steel concrete hollow square pile |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平8-260458A 1996.10.08 |
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Effective date of registration: 20170608 Address after: 210000, No. 9, No. 11, Spark Road, Nanjing hi tech Development Zone, Pukou District, Jiangsu, Patentee after: JIANGSU HONGJI ENERGY SAVING NEW TECHNOLOGY CO., LTD. Address before: Danfeng Xinyu Nanjing 210008 Jiangsu six five floor Patentee before: Wei Longwu |
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