CN103334433A

CN103334433A - Pile pulling construction method

Info

Publication number: CN103334433A
Application number: CN2013102531994A
Authority: CN
Inventors: 魏发利
Original assignee: China MCC17 Group Co Ltd
Current assignee: China MCC17 Group Co Ltd
Priority date: 2013-06-25
Filing date: 2013-06-25
Publication date: 2013-10-02
Anticipated expiration: 2033-06-25
Also published as: CN103334433B

Abstract

The invention discloses a pile pulling construction method which comprises the following steps of: A, preparing before pulling a pile; B, separating an old pile foundation; and C, pulling the pile. The pile pulling construction method has the advantages that the pile pulling construction method has low requirements on the construction site and has high construction efficiency; the pile pulling construction method is safe and reliable to use, has low disturbance to surrounding soil mass, has low noise, has no vibration and has no pollution; and operability is strong, large-scale equipment such as a crane and the like is not required, and construction cost is reduced.

Description

A kind of job practices of pile pulling

Technical field

The present invention relates to a kind of job practices of extracting old foundation pile of building engineering field, in particular, relate to the job practices of a kind of low noise, the simple pile pulling of construction.

Background technology

At present, quickening along with urban construction and development speed, original most of communal facilities can not satisfy user demand, particularly evident in urban traffic and housing construction, just need remodel and expand original building again, in dismounting, reconstruction and enlarging process, the underground pile foundation that all inevitably relates to is removed.Yet because the characteristics of urban renewal, near other building of following often and the existence of obstruction, removing and the job site, often obstruction is numerous, main equipments such as the pipe bit machine that conventional pile pulling technology uses and crane can't enter the job site, need clear up back main equipment such as crane to the scene and just can enter construction, delay construction speed, and the wasting manpower and material resources.

Summary of the invention

The present invention is directed to the deficiencies in the prior art, and a kind of, low noise, shockproof, pollution-free little to peripheral soil disturbance is provided, it is flexible to construct, the job practices of the pile pulling that efficiency of construction is high.

In order to achieve the above object, the present invention has taked following technical scheme:

A kind of job practices of pile pulling comprises the steps:

Prepare before A, the pile pulling:

Select the tonnage of fork truck according to the weight of old pile foundation, fork truck is arranged on the old pile foundation limit; Set up tripod, the angle of tripod be fixed on ground, in the center of tripod movable pulley is installed, by movable pulley with the pipe bit head sling be installed in old pile foundation directly over, drilling pipe is installed in pipe bit head lower end, the old pile foundation of the drilling pipe perpendicular alignmnet center of circle;

B, separate old pile foundation:

Start under the pipe bit head drive drilling pipe and bore, the degree of depth that drilling pipe pierces is not less than the degree of depth of old pile foundation, extracts drilling pipe again out and removes the rig head;

C, pile pulling:

The steel wire loop centre position is fixed on the lower end of old pile foundation, and an end of steel wire loop is fixed on the jaw of fork truck, and the other end is fixed on the movable pulley; Fork truck and movable pulley alternately cooperate firmly, and old pile foundation is extracted.

Described tripod is provided with base, and described base is fixed by expansion bolt and ground.The internal diameter of described drilling pipe is not less than the external diameter of old pile foundation.The position of the old pile foundation of distance of described angle steel pile is not less than 5 meters.Described steel wire loop and angle steel pile are that 8 words are overlapping fixing.

Beneficial effect of the present invention: (1) requires low to the construction plant, the efficiency of construction height; (2) safe and reliable,, low noise, shockproof, pollution-free little to peripheral soil disturbance; It is (3) workable,, do not need main equipments such as crane, reduce construction cost.

Description of drawings

Fig. 1 is the schematic diagram of setting up tripod of the job practices of a kind of pile pulling of the present invention;

Fig. 2 is the schematic diagram of the old pile foundation of separation of the job practices of a kind of pile pulling of the present invention;

Fig. 3 is the schematic diagram of fixedly steel wire loop of the job practices of a kind of pile pulling of the present invention;

Fig. 4 is the schematic diagram of pile pulling process of the job practices of a kind of pile pulling of the present invention;

Among the figure: tripod 1, pipe bit head 2, drilling pipe 3, old pile foundation 4, movable pulley 5, angle steel pile 6, steel wire loop 7, fork truck 8.

The specific embodiment

Below in conjunction with accompanying drawing the present invention is done and to describe in further detail.

As shown in the figure: in the job practices of a kind of pile pulling of the present invention, tripod 1, pipe bit head 2, drilling pipe 3, old pile foundation 4, movable pulley 5, angle steel pile 6, steel wire loop 7, fork truck 8.

The job practices of a kind of pile pulling of the present invention comprises the steps:

Prepare before A, the pile pulling:

Select the tonnage of fork truck 8 according to the weight of old pile foundation 4, fork truck 8 is arranged on old pile foundation 4 limits; Set up tripod 1, and an angle of tripod 1 is fixed on ground, described tripod 1, made by seamless steel pipe, its wall thickness and height determine that according to the degree of depth of the old foundation pile of preparing to pull out 4 tripod 1 is provided with base, and described base is fixed by expansion bolt and ground.Movable pulley 5 is installed in center at tripod 1, by movable pulley 5 with pipe bit head 2 sling be installed in old pile foundation 4 directly over, drilling pipe 3 is installed in pipe bit head 2 lower ends, the old pile foundation of drilling pipe 3 perpendicular alignmnets 4 centers of circle, the internal diameter of described drilling pipe 3 is not less than the external diameter of old pile foundation 4;

B, the old pile foundation 4 of separation:

By tripod 1 pipe bit head 2 and drilling pipe 3 suspentions are lifted, the old pile foundation 4 that 3 mouthfuls of perpendicular alignmnets of drilling pipe are residual, start pipe bit head 2, utilize drilling pipe 3 rotation, press down, cutting and separate old pile foundation 4 and on every side earth, the degree of depth that drilling pipe 3 pierces is not less than the degree of depth of old pile foundation 4, extracts drilling pipe 3 again out and removes rig head 2; Then with two steel wire loops 7, along the head of old pile foundation 4 down, in the slit by cutting and separating, old pile foundation 4 is fixedly entangled firm;

C, pile pulling:

Steel wire loop 7 is fixed on the lower end of old pile foundation 4, and an end of steel wire loop 7 is fixed on the jaw of fork truck 8, and the other end passes movable pulley 5 and angle steel pile 6 repeats to fix by 8 word interior extrapolation methods, and the position of the old pile foundation 4 of described angle steel pile 6 distances is not less than 5 meters; Fork truck 8 and movable pulley 5 alternately cooperate firmly, and pile pulling begins, and fork truck 8 and movable pulley 5 replace stressed lifting, tighten up wire rope at lifting process; When fork truck 8 is lifted to certain altitude, movable pulley 5 tightens up thereupon, and make steel wire loop 7 be in stress always, at this time fork truck tightens up wire rope again, promotes again, when old pile foundation 4 upper ends propose ground, to fasten rope in old pile foundation 4 upper ends, fell and do traction for extracting the back pile foundation, and then old pile foundation 4 was extracted, traction was fallen; Timely backfill, compacting are wanted in the hole of the old pile foundation 4 that stays at last, and the personnel of preventing fall.

The job practices of a kind of pile pulling of the present invention is used in crane and the unapproachable job site of main equipment, can carry out old pile foundation efficiently and extract work, and is safe and reliable, and the efficiency of construction height is workable, can reduce construction cost.

Claims

1. the job practices of a pile pulling is characterized in that, comprises the steps:

Prepare before A, the pile pulling:

Select the tonnage of fork truck (8) according to the weight of old pile foundation (4), fork truck (8) is arranged on old pile foundation (4) limit; Set up tripod (1), an angle of tripod (1) is fixed on ground, movable pulley (5) is installed in center at tripod (1), by movable pulley (5) with pipe bit head (2) sling be installed in old pile foundation (4) directly over, drilling pipe (3) is installed in pipe bit head (2) lower end, the old pile foundation of drilling pipe (3) perpendicular alignmnet (4) center of circle;

B, separate old pile foundation (4):

Start pipe bit head (2) and drive drilling pipe (3) brill down, the degree of depth that drilling pipe (3) pierces is not less than the degree of depth of old pile foundation (4), extracts drilling pipe (3) again out and removes rig head (2);

C, pile pulling:

Steel wire loop (7) centre position is fixed on the lower end of old pile foundation (4), and an end of steel wire loop (7) is fixed on the jaw of fork truck (8), and the other end is fixed on the angle steel pile (6) by movable pulley (5); Fork truck (8) and movable pulley (5) alternately cooperate firmly then, and old pile foundation (4) is extracted.

2. the job practices of pile pulling according to claim 1 is characterized in that, described tripod (1) is provided with base, and described base is fixed by expansion bolt and ground.

3. the job practices of pile pulling according to claim 1 is characterized in that, the internal diameter of described drilling pipe (3) is not less than the external diameter of old pile foundation (4).

4. the job practices of pile pulling according to claim 1 is characterized in that, the position of described angle steel pile (6) the old pile foundation of distance (4) is not less than 5 meters.

5. the job practices of pile pulling according to claim 1 is characterized in that, described steel wire loop (7) is that 8 words are overlapping fixing with angle steel pile (6).