CN101979777A - Cast-in-place hollow square pile and combined underground continuous wallboard and construction method thereof - Google Patents
Cast-in-place hollow square pile and combined underground continuous wallboard and construction method thereof Download PDFInfo
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- CN101979777A CN101979777A CN 201010501642 CN201010501642A CN101979777A CN 101979777 A CN101979777 A CN 101979777A CN 201010501642 CN201010501642 CN 201010501642 CN 201010501642 A CN201010501642 A CN 201010501642A CN 101979777 A CN101979777 A CN 101979777A
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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, the stake of particularly a kind of hollow side, and with the steel bar concrete underground continuous wall plate of this side stake formation.
Background technology
At present in foundation pit supporting construction, method commonly used has bored pile, diaphragm wall, forms such as SMW worker's method, wherein the drill-pouring pilework can only be kept off soil, can not sealing, still need and join water-stopping structure in addition, can finish the prop function, though SMW worker's method can be accomplished to keep off native sealing and be united two into one, but because of its rigidity is little, distortion is big and be subjected to many restrictions, and traditional continuous underground wall structure promptly can keep off soil again can sealing, but mud displacement is big during its construction, cost is higher again, is difficult to use in the general engineering go the prefabricated tubular pile composite support wallboard (patent No. 200620125443.4) of my invention, it is big to have the supporting rigidity, economic and reliable, easy construction, the retaining 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 though that the font mould can be accomplished retaining 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 is less relatively, and binding site becomes the weak link of sealing easily.
Summary of the invention
Technical problem: purpose of the present invention aims to provide a kind of cast-in-place hollow side stake and combined underground continuous wall plate and job practices, this side's stake can independently be used as engineering piles 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 side's stake underground continuous wall plate is used in supporting and protection structure, can accomplish retaining soil, sealing, structure is three-in-one, and rigidity is big, 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, can reduce engineering cost significantly.
Technical scheme: it is square that cast-in-place hollow side stake 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 piles or soldier pile; When continuous arrangement construction, promptly formed combined hollow side's stake underground continuous wall plate, be the soil body in the hollow core portion of combined hollow side stake, continuous wall plate is according to stressed size configure reinforcing bar, and concreting, promptly can keep off native sealing thereby form, can bear the supporting and protection structure of external force again.
The cross section of cast-in-place hollow side stake 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 side stake and the outer wall, be filled between the inwall of hollow side's stake and the outer wall and wrap up square reinforcing cage by concrete, be provided with three-back-shaped stake point in the bottom of hollow side's stake.
The combined underground continuous wall plate of hollow side of the present invention stake is combined by a plurality of cast-in-place hollow side stakes that are arranged side by side, between per two adjacent hollow side stakes, be provided with shaped steel, the three-back-shaped stake point that is positioned at stake bottom, hollow side has inclined to one side point, be back hollow side's stake stake point with the contacted side of previous hollow side stake, parallel sidewalls with the stake of hollow side, the inclined-plane of stake point is monolateral inside skew back, and the stake point on other three limits is that v font two limits are oblique.
The job practices of the combined underground continuous wall plate of cast-in-place hollow side stake of the present invention is:
1) with lifting appliance sling vibrations immersed tube equipment, clamper and three-back-shaped template;
2) the three-back-shaped stake point that will have an inclined to one side point with thin wire is suspended on the below of three-back-shaped template;
3) mobile lifting appliance, slinging is provided with the three-back-shaped template that hangs three-back-shaped stake point, makes three-back-shaped stake point place the precalculated position;
4) starting shock immersed tube equipment sinks to underground predetermined absolute altitude with first point and first three-back-shaped template;
5) repeat above-mentioned 1～4 the step, sink to respectively again second and third ... three-back-shaped template of root and three-back-shaped stake point,
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 side's stake;
8) repeat above-mentioned 6～7 the step, form second and third ... the three-back-shaped side's stake 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, promptly finish the construction of combined cast-in-place hollow side's stake underground continuous wall plate.
Described three-back-shaped template is provided with first guided way, second guided way; Wherein, second guided way on first three-back-shaped template matches with first guided way on second three-back-shaped template and is connected, second guided way on second three-back-shaped template matches with first guided way on the 3rd three-back-shaped template and is connected, and 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 side's stake underground continuous wall plate is a 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 the discharging and the transportation problem of mud.
3) owing to having adopted steel form, so overcome the collapse hole and the undergauge problem of traditional diaphragm wall.
4) this supporting and protection structure retaining soil, sealing and outer wall of basement are three-in-one, save space, save cost.
5) contact surface between two ' returning ' fonts is than big many of the contact surface between two ' worker ' fonts, thereby greatly strengthened the anti-permeability performance of contact surface.
6) square-section is big than the intensity of I-shaped cross-section, good rigidity, and the globality height, therefore, the performance by I-shaped diaphragm wall that forms is good for the diaphragm wall that is formed by the stake of hollow side.
Description of drawings
Fig. 1 is three-back-shaped template schematic cross-section.
Fig. 2 is hollow side's stake schematic cross-section.
Fig. 3 is the three-back-shaped template schematic cross-section of tape guide rail.
Fig. 4 is the sharp schematic cross-section of three-back-shaped stake.
Fig. 5 is the sharp schematic cross-section of three-back-shaped stake with inclined to one side point.
Fig. 6 is that construction machinery and template concern schematic diagram.
Fig. 7 is combined hollow side's stake underground continuous wall plate schematic cross-section.
Have among the above figure: hollow side's stake 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 stake point 7, sharp partially 7-1, shaped steel 8.
The specific embodiment
The cross section of cast-in-place hollow side stake 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 side's stake 1 and the outer wall, be filled between the inwall of hollow side's stake and the outer wall and wrap up square reinforcing cage 1-1 by concrete 1-2, be provided with three-back-shaped stake point 7 in the bottom of hollow side's stake 1.
The combined underground continuous wall plate of cast-in-place hollow side stake of the present invention is combined by a plurality of cast-in-place hollow side stakes 1 that are arranged side by side, between per two adjacent hollow side stakes 1, be provided with shaped steel 8, the three-back-shaped stake point 7 that is positioned at the bottom of hollow side's stake 1 has sharp partially 7-1, be back hollow side's stake stake point with the contacted side of previous hollow side stake, parallel sidewalls with hollow side's stake 1, the inclined-plane of stake point is monolateral inside skew back, and the stake point on other three limits is that v font two limits are oblique.A plurality of so cast-in-place hollow side stakes are constructed continuously and have been formed underground continuous wall plate.
Embodiment 1
Certain engineering adopts the stake of cast-in-place hollow side, and the sectional dimension of stake is: 1200x1000mm, and the thick 200mm of square pile lining, arrangement of reinforcement 16@20, Gu Jin @10@150, concrete adopts c30, and the long 36m of stake is friction pile.
Certain engineering excavation of foundation pit degree of depth 15.8m, adopt cast-in-place hollow side's stake 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 the stake point adopts the three-back-shaped stake point of the steel bar concrete with inclined to one side point.
Above embodiment 2 combined cast-in-place hollow side's stake 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;
2) the three-back-shaped stake point 7 that will have a sharp partially 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 stake point 7, makes three-back-shaped stake point 7 place the precalculated position;
4) starting shock immersed tube equipment sinks to underground predetermined absolute altitude with first point and first three-back-shaped template;
5) repeat above-mentioned 1～4 the step, sink to respectively again second and third ... three-back-shaped template 5 of root and three-back-shaped stake point (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 side's stake;
8) repeat above-mentioned 6～7 steps, form second and third, the three-back-shaped side of root stake, and after extracting three-back-shaped template, with being about in the concrete that shaped steel (8) insertion do not solidify,
So far, promptly finish the construction of combined hollow side's stake 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 second guided way 5-2 on first three-back-shaped template 6 matches with the first guided way 5-1 on second three-back-shaped template and is connected, the second guided way 5-2 on second three-back-shaped template matches with the first guided way 5-1 on the 3rd three-back-shaped template 6 and is connected, and so postpones.
In the combined underground continuous wall plate of cast-in-place hollow side stake 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, sling with lifting appliance 2 earlier and shake immersed tube equipment 3, clamper 4 and three-back-shaped template 5, will have three-back-shaped sharp 7 below that is suspended on three-back-shaped template 5 of sharp partially 7-1 with thin wire 6; Mobile lifting appliance, sling and be provided with the three-back-shaped template 5 that hangs three-back-shaped stake point 7, make three-back-shaped stake point 7 place the precalculated position, starting shock immersed tube equipment sinks to underground predetermined absolute altitude with first point 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 ... three-back-shaped template 5 of root and three-back-shaped stake point 7; In first three-back-shaped template, place square reinforcing cage 1-1 then, and perfusion concrete 1-2, starting shock immersed tube equipment promotes first three-back-shaped template 5 while vibrating, form first three-back-shaped side's stake, repeat above-mentioned steps, form the three-back-shaped side's stake 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 circulate, form the combined underground continuous wall plate of cast-in-place hollow side stake.
Claims (4)
1. cast-in-place hollow side stake, the cross section that it is characterized in that this cast-in-place hollow side stake is three-back-shaped hollow-core construction, be provided with square reinforcing cage (1-1) between the inwall of this cast-in-place hollow side stake (1) and the outer wall, be filled between the inwall of hollow side's stake and the outer wall and wrap up square reinforcing cage (1-1) by concrete (1-2), be provided with three-back-shaped stake point (7) in the bottom of hollow side's stake (1).
2. the combined underground continuous wall plate of a cast-in-place hollow side stake as claimed in claim 1, it is characterized in that this continuous wall plate is combined by a plurality of cast-in-place hollow side stakes (1) that are arranged side by side, between per two adjacent hollow side stakes (1), be provided with shaped steel (8), the three-back-shaped stake point (7) that is positioned at hollow side's stake (1) bottom has inclined to one side point (7-1), be back hollow side's stake stake point with the contacted side of previous hollow side stake, parallel sidewalls with hollow side's stake (1), the inclined-plane of stake point is monolateral inside skew back, and the stake point on other three limits is that v font two limits are oblique.
3. the job practices of the combined underground continuous wall plate of a cast-in-place hollow side stake as claimed in claim 2 is characterized in that 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);
2) the three-back-shaped stake point (7) that will have an inclined to one side 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 stake point (7), makes stake point (7) place the precalculated position;
4) starting shock immersed tube equipment sinks to underground predetermined absolute altitude with first point and first three-back-shaped template;
5) repeat above-mentioned 1～4 the step, sink to respectively again second and third ... three-back-shaped template of root (5) and three-back-shaped stake point (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 side's stake;
8) repeat above-mentioned 6～7 the step, form second and third ... the three-back-shaped side's stake 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, promptly finish the construction of combined cast-in-place hollow side's stake underground continuous wall plate.
4. the job practices of the combined underground continuous wall plate of cast-in-place hollow side's stake according to claim 3 is characterized in that described three-back-shaped template (5) is provided with first guided way (5-1), second guided way (5-2); Wherein, second guided way (5-2) on first three-back-shaped template matches with first guided way (5-1) on second three-back-shaped template and is connected, second guided way (5-2) on second three-back-shaped template matches with first guided way (5-1) on the 3rd three-back-shaped template and is connected, and so postpones.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010501642 CN101979777B (en) | 2010-09-29 | 2010-09-29 | Construction method of combined underground continuous wallboard of cast-in-place hollow square pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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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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| Publication Number | Publication Date |
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| CN101979777A true CN101979777A (en) | 2011-02-23 |
| CN101979777B CN101979777B (en) | 2013-01-16 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535446A (en) * | 2012-02-20 | 2012-07-04 | 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 |
| CN102605764A (en) * | 2011-04-15 | 2012-07-25 | 傅健 | Construction method for immersed tube type underground continuous wall without compacting |
| CN106930286A (en) * | 2017-03-19 | 2017-07-07 | 福建永强岩土股份有限公司 | The construction method of all steel mould square-outside and round-inside hollow square pile and combinations thereof type continuous underground wall structure |
| CN107059842A (en) * | 2017-03-15 | 2017-08-18 | 宁波建工工程集团有限公司 | The equipment and construction method of construction of diaphragm wall precast wall body and matching operation |
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| 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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| GB430378A (en) * | 1934-04-12 | 1935-06-18 | British Steel Piling Co Ltd | Improvements in and relating to concrete piles and columns |
| JPH08260458A (en) * | 1995-03-22 | 1996-10-08 | Hideji Okamoto | Foundation pile |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102605764A (en) * | 2011-04-15 | 2012-07-25 | 傅健 | Construction method for immersed tube type underground continuous wall without compacting |
| CN102535446A (en) * | 2012-02-20 | 2012-07-04 | 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 |
| 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 |
| CN107059842A (en) * | 2017-03-15 | 2017-08-18 | 宁波建工工程集团有限公司 | The equipment and construction method of construction of diaphragm wall precast wall body and matching operation |
| 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 |
| CN106930286A (en) * | 2017-03-19 | 2017-07-07 | 福建永强岩土股份有限公司 | The construction method of all steel mould square-outside and round-inside hollow square pile and combinations thereof type continuous underground wall structure |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN101979777B (en) | 2013-01-16 |
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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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