Underground grouting pile-forming multipurpose drill bit and designated pile diameter injection system construction method

A technology for forming piles and drilling bits, which is applied to drilling with liquid/gas jets, drilling equipment and methods, sheet pile walls, etc. Disturbance, long action time, small effect of surrounding environment

Inactive Publication Date: 2021-07-30
上海煜铠智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, RJP and MJS use their own independent drill bits and drilling tools according to their technological characteristics, which not only increases the cost of equipment, but also increases the workload of replacement when switching construction processes, which affects the construction progress

Method used

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  • Underground grouting pile-forming multipurpose drill bit and designated pile diameter injection system construction method
  • Underground grouting pile-forming multipurpose drill bit and designated pile diameter injection system construction method
  • Underground grouting pile-forming multipurpose drill bit and designated pile diameter injection system construction method

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Embodiment Construction

[0038] Below in conjunction with accompanying drawing and concrete application embodiment, content of the present invention is described further: Accompanying drawing is shown as underground grouting specified pile diameter injection system construction method SJS of the present invention, MJS / RJP process flow chart and construction flow chart and underground injection Structural schematic diagram of the multi-purpose drill bit for grouting pile formation. The multi-purpose drill bit for underground grouting pile formation includes the reverse suction section 1, the upper cutting water section 2, the slurry return section 3, the transition section 4, the slurry outlet section 5, the lower cutting water section 6, the upper Cutting water outlet 7, slurry return port 8, ground internal pressure sensor 9, main slurry nozzle (1) 10, main slurry nozzle (2) 11, cross cutting nozzle 12, simulated slurry 13, main slurry air hole 14, main slurry hole (1 ) 15, the main slurry hole (2) 16...

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Abstract

The invention relates to an underground grouting pile-forming multi-purpose drill bit and a specified pile diameter injection system construction method in the technical field of rock and soil construction mechanical equipment, and adopts a novel underground grouting pile-forming multi-purpose drill bit shared by RJP and MJS processes on the basis of the existing RJP and MJS construction processes. The nozzle spacing of double main slurry nozzles (or multiple main slurry nozzles) is controlled through a specified pile diameter injection system construction method, and the specified pile diameter pile forming function is achieved in the injection mode that the injection angle is adjustable. The method has the advantages that the method is suitable for a large-flow and large-pile-diameter construction method, the pile diameter can be adjusted and controlled, and the pile forming effect is good.

Description

technical field [0001] The invention relates to a construction method of an underground grouting pile multi-purpose drill bit and a specified pile diameter injection system in the technical field of rock and soil construction machinery and equipment. Background technique [0002] With the development of high-pressure rotary grouting construction technology in the field of geotechnical construction, the jet-jet pile forming technology is developing towards the direction of large diameter and large depth. The basic principles of RJP technology (Rodin Jet Pile) and MJS technology (Metro Jet Syetem) The jet fluid acts as kinetic energy to destroy the tissue structure of the soil layer, and the destroyed soil particles are mixed with the slurry, and after solidification, a consolidated body is formed in the formation. In the prior art, RJP and MJS use independent drill bits and drilling tools according to their technological characteristics, which not only increases the cost of e...

Claims

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Application Information

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IPC IPC(8): E21B7/18E21B7/20E21B47/06E21B21/00E02D5/46E02D3/00
CPCE02D3/00E02D5/46E21B7/18E21B7/20E21B21/00E21B47/06
Inventor 李勇黄忠陈军郝利军
Owner 上海煜铠智能科技有限公司
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