CN103967001A - Hole-forming construction method for punching pile - Google Patents
Hole-forming construction method for punching pile Download PDFInfo
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- CN103967001A CN103967001A CN201310032135.1A CN201310032135A CN103967001A CN 103967001 A CN103967001 A CN 103967001A CN 201310032135 A CN201310032135 A CN 201310032135A CN 103967001 A CN103967001 A CN 103967001A
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- punching
- reinforcing bar
- pile
- blasting charge
- percussion piles
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Abstract
The invention discloses a hole-forming construction method for a punching pile. The method comprises the steps as follows: firstly, flattening ground and cleaning a construction site; secondly, performing staking-out survey on the pile position, and placing a punching machine in position; thirdly, burying a pile casing for performing punching operation; fourthly, when encountering a boulder layer, performing explosion by adopting a internal-pile drilling method; thirdly, arranging a steel rib cage after the punching; finally, arranging a guide pipe and pouring concrete. Through adopting the method, the security is high; when the punching machine encounters boulder layers, the method of internal-pile drilling is adopted to solve the problem that the punching machine is slow in progress and easy to cause hammer deviation while encountering boulder layers; according to the construction method of the punching pile, the problems that the working efficiency is reduced and the construction progress is slowed down due to the boulder layers are overcome; through adopting the method of explosion, the rocks in the pile can be dealt with quickly, so that the construction progress is accelerated and the cost is saved.
Description
[technical field]
The present invention relates to building, civil construction field, relate in particular to the construction method of Percussion Piles pore-forming under lithostratigraphy or intricately quality condition.
[background technology]
In the work progresss such as road abutment, can run into various geological condition, if run into complicated geological situation, when serious, can have influence on duration and progress, particularly, in Percussion Piles work progress, if run into rock, Percussion Piles construction speed is slow, or can not be completed expection construction target, produce larger economic loss.Percussion Piles, also referred to as Punching Borehole Cast-in-place Concrete Pile, is a kind of castinplace pile that adopts punching machine impact holing, and castinplace pile is the direct upper pore-forming in stake position at the construction field (site), then put into reinforcing cage again concrete perfusion form.When punching machine punch, the block stamp of punching machine need to be risen to certain altitude, utilize the impact energy of block stamp free-falling to smash soil layer or rock, then coordinate the circulation of mud rubble removal system to discharge, with this, form punching.
Percussion Piles technique is applicable to the stratum construction of fill stratum, argillic horizon, powder soil horizon, mud, sandy soils, crushed stone soil layer, gravel boulder bed, karst growth rock stratum or cranny development, stake bore dia is generally 600～2500mm, maximum gauge can reach 2500mm, and punching degree of depth maximum can reach 300m left and right.
While adopting existing Percussion Piles construction technology, when running into boulder layer, speed of fulfiling hole slows down, and the situation of hammer partially easily occurs, and has a strong impact on construction speed.
[summary of the invention]
The present invention is directed to above situation and proposed a kind of can solution and in formation of pile, run into boulder layer, solve the construction method that affects job scheduling due to boulder layer, the method can be avoided the problems such as block stamp whereabouts deviation, speed of fulfiling hole slow down.
A kind of Percussion Piles drilling construction method of the present invention, is characterized in that, comprises the following steps:
Smooth location, cleaning job site;
Measure of pile position setting-out, places punching machine in place;
Bury casing underground, carry out punching operation;
Run into boulder layer, adopt stake internal drilling to carry out explosion;
Punching completes lays reinforcing cage;
Catheter placement, concrete perfusion.
The method that explosion is carried out in described stake internal drilling, gets out a geology hole at Percussion Piles center, in this geology hole, demolition set is installed, and the lead-in wire of demolition set is located at outside Percussion Piles.
The diameter in described geology hole is 120mm, and the diameter of described demolition set is 100mm.
Described demolition set comprises reinforcing bar and several blastings charge, and these several blastings charge are tubular emulsion, and its diameter is 32mm; This reinforcing bar length surpasses 1.2 times of rock thickness, and its diameter is 20mm; 3 blastings charge are fixed on to the part that reinforcing bar extend into geology hole, and the length that the blasting charge covers on reinforcing bar surpasses rock thickness.
The two ends that described reinforcing bar stretches out outside rock are all coated with the blasting charge, and this blasting charge is in exceeding within the scope of lithosome 30cm.
When rock thickness is far longer than single blasting charge length, on reinforcing bar length direction, interval arranges blasting charge unit, 3 blastings charge that each blasting charge unit comprises circumferential directions.
Adopt method of the present invention, safe, while running into boulder layer, adopt a method for interior explosion can solve punching machine and run into the problem that boulder layer progress slowly easily hammered into shape partially, this Percussion Piles construction method, overcomes the operating efficiency reduction that boulder layer brings, slow down the problem of construction speed, the mode fast processing of employing explosion falls to be positioned at the rock of stake, and accelerating construction progress is cost-saving.
[accompanying drawing explanation]
Fig. 1 is Percussion Piles drilling construction structural representation of the present invention.
Wherein: 10, geology hole; 20, demolition set; 21, reinforcing bar; 22, the blasting charge; 30, rock; 40, lead-in wire.
[specific embodiment]
Below in conjunction with the drawings and specific embodiments of the present invention, the present invention is described in further detail.
According to conventional steps, carry out Percussion Piles drilling construction method, comprise the following steps:
Smooth location, cleaning job site;
Measure of pile position setting-out, places punching machine in place;
Bury casing underground, carry out punching operation;
At Percussion Piles, be deep into below the 1.0m of ground, run into boulder layer, adopt stake internal drilling to carry out explosion;
Be illustrated in figure 1 and in Percussion Piles, bury demolition set structural representation underground, when explosion, need in Percussion Piles, get out the geology hole 10 that a diameter is 120mm in center, at the interior installation demolition set 20 in this geology hole 10, the lead-in wire 40 of demolition set is located at outside Percussion Piles, demolition set 20 need to and geology hole 10 between keep a determining deviation, the diameter of described demolition set 20 is 100mm.
Described demolition set 20 comprises reinforcing bar 21 and the blasting charge 22, and this blasting charge 22 is tubular emulsion, and its diameter is 32mm; These reinforcing bar 21 length surpass 1.2 times of rock 30 thickness, and its diameter is 20mm; 3 blastings charge 22 are fixed on to the part that reinforcing bar 21 extend into geology hole 10, and the length that the blasting charge covers on reinforcing bar 21 surpasses rock thickness.
The two ends that described reinforcing bar 21 stretches out outside rock 30 are all coated with the blasting charge 22, this blasting charge 22 in exceed lithosome and apart from the scope between lithosome 30cm in.
When rock 30 thickness are far longer than single blasting charge length, described demolition set comprises reinforcing bar and several blasting charge unit, on reinforcing bar length direction, interval arranges blasting charge unit, 3 blastings charge that each blasting charge unit comprises circumferential directions, adopt two detonator parallel connections of the single blasting charge, lead-in wire 40 is moved out, the initiation net of two safety of a plurality of blasting charge series connection.
Complete after explosion, continue to adopt punching machine punch, punching completes lays reinforcing cage;
Catheter placement, concrete perfusion.
In follow-up working, also needed concrete curing, pile foundation to detect the examination of just handing over.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be not depart from technical solution of the present invention content, according to the technology of the present invention, refer to any simple modification that above embodiment is done, equivalent variations and modification, all belong in the scope of technical solution of the present invention.
Claims (6)
1. a Percussion Piles drilling construction method, is characterized in that, comprises the following steps:
Smooth location, cleaning job site;
Measure of pile position setting-out, places punching machine in place;
Bury casing underground, carry out punching operation;
Run into boulder layer, adopt stake internal drilling to carry out explosion;
Punching completes lays reinforcing cage;
Catheter placement, concrete perfusion.
2. Percussion Piles hole forming method according to claim 1, is characterized in that, the method that explosion is carried out in described stake internal drilling, gets out a geology hole at Percussion Piles center, in this geology hole, demolition set is installed, and the lead-in wire of demolition set is located at outside Percussion Piles.
3. Percussion Piles hole forming method according to claim 2, is characterized in that, the diameter in described geology hole is 120mm, and the diameter of described demolition set is 100mm.
4. Percussion Piles hole forming method according to claim 2, is characterized in that, described demolition set comprises reinforcing bar and the blasting charge, and this blasting charge is tubular emulsion, and its diameter is 32mm; This reinforcing bar length surpasses 1.2 times of rock thickness, and its diameter is 20mm; 3 blastings charge are fixed on to the part that reinforcing bar extend into geology hole, and the length that the blasting charge covers on reinforcing bar surpasses rock thickness.
5. Percussion Piles hole forming method according to claim 4, is characterized in that, the two ends that described reinforcing bar stretches out outside rock are all coated with the blasting charge, this blasting charge in exceed lithosome and apart from the scope between lithosome 30cm in.
6. Percussion Piles hole forming method according to claim 4, it is characterized in that, when rock thickness is far longer than single blasting charge length, described demolition set comprises reinforcing bar and several blasting charge unit, on reinforcing bar length direction, interval arranges blasting charge unit, 3 blastings charge that each blasting charge unit comprises circumferential directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310032135.1A CN103967001A (en) | 2013-01-25 | 2013-01-25 | Hole-forming construction method for punching pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310032135.1A CN103967001A (en) | 2013-01-25 | 2013-01-25 | Hole-forming construction method for punching pile |
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| CN103967001A true CN103967001A (en) | 2014-08-06 |
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| CN201310032135.1A Pending CN103967001A (en) | 2013-01-25 | 2013-01-25 | Hole-forming construction method for punching pile |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246010A (en) * | 2017-05-07 | 2017-10-13 | 云南建投第十三建设有限公司 | Karst area Percussion Piles construction |
| CN108571286A (en) * | 2018-05-07 | 2018-09-25 | 华中科技大学 | A kind of pile foundation boring device and method |
| CN108589704A (en) * | 2018-04-11 | 2018-09-28 | 广东梁亮建筑工程有限公司 | Concrete pouring of punched hole piles method |
| CN108894230A (en) * | 2018-07-19 | 2018-11-27 | 中铁大桥局集团有限公司 | The processing method of boulder is met in a kind of casing sinking |
| CN112482357A (en) * | 2020-12-04 | 2021-03-12 | 浙大城市学院 | Drilling tool for pre-blasting cement mixing pile suitable for hard soil layer and application method thereof |
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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 |
| CN101713624A (en) * | 2009-11-17 | 2010-05-26 | 广东爆破工程有限公司 | Explosion and crushing method for underground concealed rock ground drilling |
| CN102031775A (en) * | 2010-06-12 | 2011-04-27 | 中铁十六局集团有限公司 | Construction technology of drilled pile in hard oblique rocks by medium hole blasting |
| CN102031782A (en) * | 2009-09-29 | 2011-04-27 | 中国二十冶集团有限公司 | Layered inclined hole blast construction method for multilayer complex quicksand foundation |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246010A (en) * | 2017-05-07 | 2017-10-13 | 云南建投第十三建设有限公司 | Karst area Percussion Piles construction |
| CN107246010B (en) * | 2017-05-07 | 2019-05-10 | 云南建投第十三建设有限公司 | Karst area Percussion Piles construction |
| CN108589704A (en) * | 2018-04-11 | 2018-09-28 | 广东梁亮建筑工程有限公司 | Concrete pouring of punched hole piles method |
| CN108589704B (en) * | 2018-04-11 | 2020-10-27 | 广东梁亮建筑工程有限公司 | Construction method of punching cast-in-place pile |
| CN108571286A (en) * | 2018-05-07 | 2018-09-25 | 华中科技大学 | A kind of pile foundation boring device and method |
| CN108571286B (en) * | 2018-05-07 | 2024-04-19 | 华中科技大学 | Pile foundation perforating device and method |
| CN108894230A (en) * | 2018-07-19 | 2018-11-27 | 中铁大桥局集团有限公司 | The processing method of boulder is met in a kind of casing sinking |
| CN108894230B (en) * | 2018-07-19 | 2020-08-18 | 中铁大桥局集团有限公司 | Method for treating boulder during sinking of pile casing |
| CN112482357A (en) * | 2020-12-04 | 2021-03-12 | 浙大城市学院 | Drilling tool for pre-blasting cement mixing pile suitable for hard soil layer and application method thereof |
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Application publication date: 20140806 |