Self-service wall protecting device and wall protecting method for cast-in-situ bored pile

A technology of bored cast-in-place piles and drill bits, which can be used in excavation, sheet pile walls, earthwork drilling and mining, etc. It can solve problems such as hole collapse, reduce the possibility of blockage, and speed up the effect

Pending Publication Date: 2021-05-07
江苏地基工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to improve the problem that the hole may collapse during drilling, the application provides a self-service wall protection device and wall protection method for bored piles

Method used

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  • Self-service wall protecting device and wall protecting method for cast-in-situ bored pile
  • Self-service wall protecting device and wall protecting method for cast-in-situ bored pile
  • Self-service wall protecting device and wall protecting method for cast-in-situ bored pile

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Embodiment Construction

[0036] The following is attached Figure 1-3 The application is described in further detail.

[0037] The embodiment of the present application discloses a self-service wall protection device and a wall protection method for bored piles.

[0038] refer to figure 1 , The self-service wall protection device for bored cast-in-situ piles includes a drilling device, a mud delivery device, an inflation device, and a cleaning device.

[0039] refer to figure 1 with figure 2 , the drilling device includes a drill rod 10 and a drill bit 11, the drill rod 10 is vertically arranged and hollow inside, the drill bit 11 is fixedly connected to the bottom end of the drill rod 10, the drill bit 11 and the drill rod 10 are coaxially arranged, and the bottom of the drill bit 11 is conical type setting.

[0040] refer to figure 1 with figure 2, the mud delivery device includes a mud spray pipe 20, a mud delivery hose 22, a mud pump 21, an adapter, and a control valve 23; the mud spray p...

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Abstract

The invention relates to a self-service wall protecting device and method for a cast-in-situ bored pile, the self-service wall protecting device comprises a vertically-arranged hollow drill rod, the bottom end of the drill rod is connected with a drill bit, the drill bit is internally provided with a plurality of mud spraying pipes, the mud spraying pipes are circumferentially arranged around the axis of the drill bit, one end of each mud spraying pipe communicates with the outer side wall of the circumference of the drill bit, and the other end of each mud spraying pipe communicates with the outer side wall of the circumference of the drill bit. The other end extends into the drill rod. A mud pump is arranged on the ground, the outlet end of the mud pump is communicated with a mud conveying hose, the end, away from the mud pump, of the mud conveying hose extends into the drill rod from the top of the drill rod, and the mud conveying hose and the mud spraying pipe are communicated and rotationally connected. The method has the advantage that the collapse possibility of the hole during drilling is reduced.

Description

technical field [0001] The present application relates to the field of cast-in-place piles, in particular to a self-service wall protection device and wall protection method for bored piles. Background technique [0002] Bored pile refers to the pile hole formed in the foundation soil by means of mechanical drilling, steel pipe extrusion or manual excavation on the construction site, and a steel cage is placed in it and concrete is poured into it. [0003] Yet, because the soil quality of some construction sites is relatively loose, the hole formed by drilling is prone to collapse. Therefore, after the drilling is completed, the construction workers usually put the retaining wall structure in the drilled hole to reduce the risk of the hole collapsing. possibility. [0004] In view of the above-mentioned related technologies, the inventor believes that the above-mentioned retaining wall structure is put into the hole after the drilling is completed, so it can only function a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/13E21B21/00E21B21/10E02D5/34E02D17/08
CPCE02D5/34E02D17/08E21B21/00E21B21/10E21B33/13
Inventor 陈家冬吴亮汪小健
Owner 江苏地基工程有限公司
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