CN202017205U

CN202017205U - Middle-digging prestress centrifugal pipe pile and square pile soil taking structure

Info

Publication number: CN202017205U
Application number: CN2011200595273U
Authority: CN
Inventors: 谢晓东; 卢寿根
Original assignee: SHANGHAI CHENGDI CONSTRUCTION DEVELOPMENT Co Ltd
Current assignee: Shanghai Chengdi Construction Co., Ltd.
Priority date: 2011-03-09
Filing date: 2011-03-09
Publication date: 2011-10-26
Anticipated expiration: 2021-03-09

Abstract

The utility model discloses a middle-digging prestress centrifugal pipe pile and square pile soil taking structure, which comprises a centrifugal pipe pile, a square pile, a soil taking drill rod and a reverse rotation wing expansion drill bit, wherein the centrifugal pipe pile and the square pile are in a circular tube shape or a square tube shape, the soil taking drill rod penetrates into the centrifugal pipe pile and the square pile, the bottom end of the soil taking drill rod is connected with the reverse rotation wing expansion drill bit, the soil taking drill rod comprises a center shaft pipe and a spiral sheet, the soil taking drill rod is driven to rotate by a motive power head, the rotation of the reverse rotation wing expansion drill bit is realized, and the soil taking is realized by the spiral sheet in the rotation process of the soil taking drill rod. The middle-digging prestress centrifugal pipe pile and square pile soil taking structure has the advantages that the soil taking is realized during the pile pressing, the pile pressing stability is ensured, the soil extruding phenomenon can not be generated, and the like.

Description

Middle pick prestressed centrifugally pile tube, square the structure that fetches earth

Technical field

Pick prestressed centrifugally pile tube, the side's stake structure that fetches earth during the utility model relates to is mainly used in civilian and during industrial infrastructure builds, is used for the structure that fetches earth simultaneously in building piling process.

Background technology

At present in civilian or communal facilities, in the process of construction of civilian or office premises, higher more stable in order to make that building is made, between building is set up, reinforcing to ground generally all is to assign into underground with pile tube or side's stake, play the effect of support of buildings, as pile tube or side's stake all is to be pressed in the soil by the mode that presses down generally, but because mode by pressing down, will produce object and press down soil compaction phenomenon in the process, simultaneously, the generation that presses down soil compaction in the process is squeezed for producing between the firmness of ground and pile body and the pile body, firmness to pile foundation exerts an influence, and the phenomenon of soil compaction makes the resistance that presses down strengthen again, is unfavorable for the sinking of pile body.

Summary of the invention

In order to overcome the deficiency of existing situation, can not satisfy the requirement of building development, the utility model presses down in the process mode by fetching earth simultaneously at original pile body, the resistance that makes pile body press down reduces greatly, the pile body that increases presses down stability and the verticality in the process, realizes that pile body presses down the phenomenon generation of no soil compaction.

The utility model is to realize like this, middle pick prestressed centrifugally pile tube, square the structure that fetches earth, comprise, wing drill bit is expanded in centrifugal pile tube, side's stake, the drilling rod that fetches earth, counter-rotating, described centrifugal pile tube, side's stake are cylindrical shape or square tube shape, the described drilling rod that fetches earth interts in centrifugal pile tube, stake inside, side, the described drilling rod bottom of fetching earth is connected with counter-rotating and expands wing drill bit, the described drilling rod that fetches earth comprises central siphon and flight, the described drilling rod that fetches earth drives by unit head and rotates, realize that counter-rotating expansion wing drill bit rotates, flight is realized fetching earth in the drilling rod rotation process that fetches earth.

The utlity model has following remarkable advantages and characteristics:

1) fetches earth by centrifugal pile tube, side's inner drilling rod that fetches earth of stake, better realize pressing down of centrifugal pile tube, side's stake;

2) the bottom coating is stirred in the rotation that wing drill bit is expanded in the realization counter-rotating in the process that the drilling rod that fetches earth fetches earth, better realization whitewashing.

Description of drawings

Fig. 1 is the perspective internal view of pick prestressed centrifugally pile tube, square the structure that fetches earth in the utility model;

Fig. 2 is the drilling rod structural representation that fetches earth of pick prestressed centrifugally pile tube, square the structure that fetches earth in the utility model;

Wherein: the centrifugal pile tube of 1-, side's stake; The 2-drilling rod that fetches earth; The 3-flight; The 4-central siphon; Wing drill bit is expanded in the 5-counter-rotating.

The specific embodiment

Pick prestressed centrifugally pile tube, square the structure that fetches earth in shown in Fig. 1-2, comprise, wing drill bit 5 is expanded in centrifugal pile tube, side's stake 1, the drilling rod 2 that fetches earth, counter-rotating, described centrifugal pile tube, side's stake 1 are cylindrical shape or square tube shape, the described drilling rod 2 that fetches earth interts in centrifugal pile tube, stake 1 inside, side, described drilling rod 2 bottoms of fetching earth are connected with counter-rotating and expand wing drill bit 5, the described drilling rod 2 that fetches earth comprises central siphon 4 and flight 3, the described drilling rod 2 that fetches earth drives by unit head and rotates, realize that counter-rotating expansion wing drill bit 5 rotates, flight 3 is realized fetching earth in drilling rod 2 rotation processes that fetch earth.

It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technical scheme of unrestricted the utility model; Therefore, although this manual has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of the spirit and scope of utility model, and it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1. middle pick prestressed centrifugally pile tube, square the structure that fetches earth, comprise, wing drill bit is expanded in centrifugal pile tube, side's stake, the drilling rod that fetches earth, counter-rotating, it is characterized in that: described centrifugal pile tube, square stake are cylindrical shape or square tube shape, and the described drilling rod that fetches earth interts in centrifugal pile tube, stake inside, side.

2. pick prestressed centrifugally pile tube, square the structure that fetches earth in according to claim 1, it is characterized in that: the described drilling rod bottom of fetching earth is connected with counter-rotating and expands wing drill bit, the described drilling rod that fetches earth comprises central siphon and flight, the described drilling rod that fetches earth drives by unit head and rotates, realize that counter-rotating expansion wing drill bit rotates, flight is realized fetching earth in the drilling rod rotation process that fetches earth.