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Drilling hole forming internal screw rod slurry hoisting system

A lifting system and internal screw technology, applied in drilling equipment and methods, drilling equipment, earthwork drilling and mining, etc., can solve the problems of thick mud and mud blocks that are difficult to discharge pile holes by themselves, so as to reduce mud discharge and speed up Construction progress, the effect of environmental protection and social benefits

Inactive Publication Date: 2014-10-01
SHANGHAI MECHANIZED CONSTR GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a screw slurry lifting system drilled into holes to solve the problem in the prior art that thick mud and mud blocks are difficult to discharge from the lower section of the pile hole when the slurry is positively circulated. question

Method used

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  • Drilling hole forming internal screw rod slurry hoisting system
  • Drilling hole forming internal screw rod slurry hoisting system
  • Drilling hole forming internal screw rod slurry hoisting system

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Embodiment Construction

[0022] The present invention will be described in more detail below in conjunction with the drawings. It should be noted that these drawings all adopt very simplified forms and all use imprecise ratios, which are only used to conveniently and clearly assist in explaining the embodiments of the present invention.

[0023] See Figure 1-Figure 4 , The screw mud lifting system in the drilled hole of the present invention includes a power device 6, a drill rod 4, a drill bit 5, a mud pump 7, a first pipeline system 10, a second pipeline system 11, and a background processing system 8. The power unit 5 is connected to the rear end of the drill pipe 4, the drill bit 5 is connected to the front end of the drill pipe 4, the drill pipe 4 is connected to the mud pump 7, one end of the background processing system 8 is connected to the mud pump 7 through the second pipeline system 11, and the other One end is inserted into the opening 9 through the first management system 10. Wherein, the...

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Abstract

The invention discloses a drilling hole forming internal screw rod slurry hoisting system, which comprises a motive power device, a drill rod, a drill bit, a slurry pump, a first pipeline system, a second pipeline system and a background processing system, wherein the drill rod comprises a hollow drill rod and a drill rod joint connected with the hollow drill rod; and in addition, a spiral blade is arranged on the outer surface of the hollow drill rod. During the construction, the spiral blade rotates in the positive direction of the drill rod; upward hoisting force is generated on the slurry at the lower section of a pile hole, and meanwhile, downward thrust is generated on the drill rod; in addition, a slurry normal circulation principle with low equipment requirements is adopted; the construction progress is accelerated; the slurry discharge quantity is reduced; and the environment-friendly social benefits are achieved.

Description

Technical field [0001] The invention relates to a borehole drilling system for cast-in-place piles in civil engineering, in particular to a screw slurry lifting system in the borehole drilling. Background technique [0002] At present, in the process of constructing holes for conventional bored piles, drill rods have the following functions: one is to connect the drill bit and construction equipment through the connection of multiple drill rods when the drill bit sinks; The device is transferred to the drill bit, which causes the drill bit to rotate. [0003] In the construction of conventional bored piles in soft soil, the mud circulation methods are: positive circulation (the drill bit sprays mud) and reverse circulation (the drill bit sucks mud). However, in the conventional bored pile construction, the soil is completely crushed to form mud through drill bit grinding, and the hole formation speed is slow and the construction efficiency is low. [0004] The Chinese patent with t...

Claims

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Application Information

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IPC IPC(8): E21B7/00
Inventor 周铮李庭辉周蓉峰刘军
Owner SHANGHAI MECHANIZED CONSTR GRP
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