CN202323934U

CN202323934U - Hole forming device for cast-in-situ triangular composite foundation pile

Info

Publication number: CN202323934U
Application number: CN2011201732579U
Authority: CN
Inventors: 常雷
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-26
Filing date: 2011-05-26
Publication date: 2012-07-11
Anticipated expiration: 2021-05-26

Abstract

The utility model discloses a hole forming device for fast completion of a triangular cast-in-situ concrete large-scale composite foundation pile in a soft soil foundation. The hole forming device comprises a medium and high frequency vibratory hammer, a special clamp device, a circular outer steel casing, a triangular inner steel casing, an embedded triangular reinforced concrete sealed solid pile tip and an articulated triangular steel valve pile tip. The scheme of the utility model can be used for the large-scale composite foundation pile in the treatment of the soft soil foundation, the inner and outer steel casings and the pile tips can be fast deposited to the design scale height of a soil layer by vibration through the medium and high frequency vibratory hammer and a clamp head of the special clamp, and then the cast-in-situ concrete composite foundation pile is further realized. According to the construction method, cast-in-situ concrete can be saved, the single-pile bearing capacity can be improved, the anti-sedimentation and anti-side slip displacement capabilities of the whole compound foundation can be enhanced; and in addition, the construction cost can be reduced by above 20%, the construction unearthed volume can be reduced by 50%, the pollution caused by secondary desilting transportation can be avoided, and the construction method is suitable for construction in different soft soil layers and complex places.

Description

The perforating device that is used for cast-in-place triangle compound foundation pile

Technical field

The utility model relates to a kind of perforating device that soft foundation is accomplished the large-scale compound foundation pile of cast-in-situ concrete triangle fast that is used for; It is applicable to the construction of the compound foundation pile of all kinds of deep weak soil, backfill, can be widely used in the treatment of soft foundation and the processing of the soft foundation in other civil construction of sea wall composite pile foundation, port and pier reclamation by pumping filling.

Background technology

At present; In the pile foundation construction of handling the deep weak soil of all kinds of harbours, harbour, water conservancy, airport, railway and building, backfill; The overwhelming majority still adopts traditional construction technology; Promptly earlier large diameter single steel casing is squeezed into or is pressed in the soil and fetch earth through punching, excavation or auger again, this job practices in pore forming process, need to discharge a large amount of earth, engineering quantity big, bring pollution to site environment, also in secondary desilting transportation, stained surrounding environment once more; When the cast pile body, need use a large amount of concrete simultaneously, not only consuming time taking a lot of work also strengthened engineering cost.

In order to overcome the deficiency that above-mentioned conventional method exists in work progress, reduce the construction cost accelerating construction progress, avoid secondary desilting transportation to pollute, adapt to the construction demand in different soil and place, just become the technical problem that the utility model scheme will solve.

The utility model content

To the problems referred to above, the utility model aims to provide a kind of perforating device that is used for cast-in-place triangle compound foundation pile, and it comprises the medium-high frequency hydraulic vibration driver 1, flange 2, special fixture chute crossbeam 3, the moving telescopic chuck 4, circular outer steel casing 6, steel casing in the triangle 7, build-in type triangle reinforcing bar concrete sealing solid pile point 9With articulated type triangle steel flapper pile tip 13It is through medium-high frequency hydraulic vibration driver and special fixture cartridge device with the clamping of inside and outside steel casing, unclamp and be connected; Said stake position, tip is adopted build-in type triangle reinforcing bar concrete sealing solid pile point respectively 9With articulated type triangle steel flapper pile tip 13Steel casing cavity top is provided with cast-in-situ concrete and pours into the place in the said triangle 5Be provided with a kind of construction technology that reinforcing cage from top to bottom hangs passage in the said triangle between steel casing cavity.

As this patent, said medium-high frequency hydraulic vibration driver 1Be to clamp steel casing in the triangle through the clamping of special fixture cartridge device difference 7With the outer steel casing of circle 6The position, upper end is executed to shake and is exerted pressure, and makes steel casing in the triangle 7, circular outer steel casing 6With build-in type triangle reinforcing bar concrete sealing solid pile point 9Association is shaken fast sinks to underground soil layer design elevation place.

As this patent, said reinforcing cage in the triangle between steel casing cavity the top from top to bottom hang in.

As this patent, said cast-in-situ concrete steel casing cavity top end in the triangle is poured into gradually.

As this patent, after completion is built in said cast-in-situ concrete, start the medium-high frequency hydraulic vibration driver 1Clamp steel casing in the triangle through the clamping of special fixture cartridge device difference 7With the outer steel casing of circle 6The upper end is executed to shake to execute and is pulled out, and simultaneously steel casing in the triangle 7With outer steel casing 6The ground of extricating oneself from a predicament and brace oneself up to action at a slow speed also can be earlier steel casing in the triangle 7The ground of extricating oneself from a predicament and brace oneself up to action at a slow speed, treat that inner chamber body is replenished sufficient concrete after, again outer steel casing 6The ground of extricating oneself from a predicament and brace oneself up to action at a slow speed.

As this patent, said stake position, tip is adopted build-in type triangle reinforcing bar concrete sealing solid pile point respectively 9With articulated type triangle steel flapper pile tip 13

The utility model scheme can be accomplished the complex structure body that is used for the large-scale compound foundation pile of soft foundation cast-in-situ concrete triangle fast; It has not only been practiced thrift cast-in-situ concrete and has improved whole anti-sedimentation and the anti-side sliding displacement capacity that single pile bearing capacity has also been strengthened composite foundation, and this scheme can shorten 4～June of construction period, reduce construction cost 20% or more, reduce construction the be unearthed different soft layer of amount 50%, the pollution of avoiding secondary desilting transportation, adaptation and the construction of complex site.

Description of drawings

Fig. 1 is the comprehensive complete process principle schematic of the utility model.

Fig. 2 is the utility model triangle cast-in-situ concrete compound foundation pile floor map.

Fig. 3 is the utility model build-in triangle reinforcing bar concrete sealing solid pile point floor map.

Fig. 4 is the utility model build-in triangle reinforcing bar concrete sealing solid pile point generalized section.

Fig. 5 is the hinged link floor map of the utility model triangle steel flapper pile tip and steel.

Fig. 6 is the hinged link generalized section of the utility model triangle steel flapper pile tip and steel.

Its description of reference numerals: medium-high frequency hydraulic vibration driver 1, flange 2, special fixture chute crossbeam 3, the moving telescopic chuck 4, cast-in-situ concrete pours into the place 5, circular outer steel casing 6, steel casing in the triangle 7, triangle reinforcing bar concrete sealing solid pile point water jacket 8, build-in type triangle reinforcing bar concrete sealing solid pile point 9, the cavity soil discharge channel between inside and outside steel casing 10, the triangle reinforcing bar concrete stake after building 11, the stake point soft soil that shakes and arranged when sinking to underground soil layer 12, articulated type triangle steel flapper pile tip 13, steel articulated link chain joint 14

The specific embodiment

Below in conjunction with accompanying drawing and practical implementation the utility model scheme is explained further details:

One, like accompanying

drawing

1,2,3,4,5, shown in 6, the utility model scheme provides through having the medium-high frequency hydraulic vibration driver 1, flange 2, special fixture chute crossbeam 3, the moving telescopic chuck 4The special fixture association that equipment is formed is simultaneously to the outer steel casing of circle 6With steel casing in the triangle 7Upper end position clamping steps up, and makes steel casing in the triangle 7Bottom elder generation build-in is in build-in type triangle reinforcing bar concrete solid pile point 9On, start the medium-high frequency hydraulic vibration driver 1The enforcement pressure of shaking makes circular outer steel casing 6, steel casing in the triangle 7With build-in type triangle reinforcing bar concrete solid pile point 9Association is sunk to the operation construction technology of the underground soil layer and the inside and outside steel casing of extricating oneself from a predicament and brace oneself up to action at a slow speed fast simultaneously by shaking.

Two, before concreting, must be earlier hang in reinforcing cage from top to bottom in the triangle in the steel casing cavity, again concreting.

Three, if pile crown partly adopts articulated type triangle steel flapper pile tip 13, when practice of construction, still follow one in the above-mentioned specific embodiment, a step construction.

Four, the special-purpose perforating device in the present embodiment is mainly three parts composition: first is for having the medium-high frequency hydraulic vibration driver 1, flange 2 and special fixture chute crossbeam 3, the moving telescopic chuck 4Association's equipment of forming; The outer steel casing of second portion circle 6With steel casing in the triangle 7Form; Third part is a build-in triangle reinforcing bar concrete solid pile point 9Or be hinged triangle steel flap valve pile crown 13And steel articulated link chain joint 14Form.

Practical implementation method and result

1) puts the large-scale compound foundation pile type of cast-in-place mixed earth triangle of reinforcing cage

A, elder generation move on to construction location by portable stake machine drive medium-high frequency vibrating hammer and special hydraulic clamp system, start the medium-high frequency hydraulic vibration driver 1, through the flange connecting dish 2With special fixture chute crossbeam 3, the moving telescopic chuck 4, clamp outer steel casing simultaneously 6Top and interior steel casing 7The top is executed to shake and is exerted pressure, and makes it association and is shaken fast and sink to design soil layer absolute altitude place, unclamps clamping fixture head 4, remove the medium-high frequency hydraulic vibration driver 1

B, accomplish above-mentioned practical implementation method and result 1) behind a, step process, hang onto interior steel casing to the reinforcing cage of having made 7In the cavity, after the reinforcing cage localization examination is accomplished, from interior steel casing cavity upper end 5Fluid concrete, treat that concrete pouring is intact after, restart the medium-high frequency hydraulic vibration driver 1, through the flange connecting dish 2And special fixture 3And chuck 4, clamp inside and outside steel casing top and execute and shake, after 5 seconds of vibration earlier, check the concrete that has watered in the chamber till supplying design elevation, pull out inside and outside steel casing simultaneously slowly until going out ground, and move on to next working procedure.

2) the large-scale compound foundation pile type of cast-in-place plain concrete triangle

Accomplish above-mentioned practical implementation method and result 1) behind a, step process, remove outside the install reinforcing cage step process, directly on interior steel casing cavity 5Fluid concrete, treat that concrete pouring is intact after, restart the medium-high frequency hydraulic vibration driver 1, through the flange connecting dish 2And special fixture 3And chuck 4, clamp inside and outside steel casing top and execute and shake, after 5 seconds of vibration earlier, check the concrete that has watered in the chamber till supplying design elevation, pull out inside and outside steel casing simultaneously slowly until going out ground, and move on to next working procedure.

The above; Be merely preferable case study on implementation in the utility model constructure scheme; Every trickle modification of above case study on implementation being done according to the utility model scheme of any essence all is equal to replacement and improves, and all should be included within the protection domain of the utility model scheme.

Claims

1. perforating device that is used for cast-in-place triangle compound foundation pile, it comprises in medium-high frequency hydraulic vibration driver (1), flange (2), special fixture chute crossbeam (3), moving telescopic chuck (4), circular outer steel casing (6), the triangle that steel casing (7), build-in type triangle reinforcing bar concrete sealing solid pile point (9) and articulated type triangle steel flapper pile tip (13) are sharp; It is through medium-high frequency hydraulic vibration driver and special fixture cartridge device with the clamping of inside and outside steel casing, unclamp and be connected; Said stake position, tip is adopted build-in type triangle reinforcing bar concrete sealing solid pile point (9) and articulated type triangle steel flapper pile tip (13) respectively; Steel casing cavity top is provided with cast-in-situ concrete and pours into place (5) in the said triangle; The reinforcing cage that is provided with from top to bottom between steel casing cavity in the said triangle hangs passage.