Down hole impacting rotary jetting mixing pile construction technology and device

A technology of construction equipment and construction technology, applied in sheet pile wall, foundation structure engineering, construction and other directions, can solve the problems of poor pile forming effect and poor drilling performance, and achieve the reduction of material consumption, cement consumption and simple frame structure. Effect

Pending Publication Date: 2017-08-01
BEIJING RONGCHUANG GEOTECHNICAL ENG CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a construction technique and equipment for down-the-hole impact rotary spraying mix

Method used

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  • Down hole impacting rotary jetting mixing pile construction technology and device
  • Down hole impacting rotary jetting mixing pile construction technology and device
  • Down hole impacting rotary jetting mixing pile construction technology and device

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[0074] In order to have a clearer understanding of the technical features, objectives and effects of the present invention, the present invention will now be described with reference to the accompanying drawings.

[0075] Such as image 3 As shown, the down-the-hole impact rotary jet mixing pile construction equipment of the present invention includes:

[0076] Drill pipe 4;

[0077] The down-the-hole impactor 1 is arranged at the bottom end of the drill rod 4;

[0078] The stirring device 2 is connected to the outside of the down-the-hole impactor 1; the stirring device and the down-the-hole impactor work synchronously;

[0079] Nozzle 3 is arranged on the side of the drill rod;

[0080] Such as Figure 4 As shown, the drill pipe 4 is provided with a through channel inside, respectively connected to the high-pressure slurry pipeline 5 and the high-pressure air passage 7 of the drill bit or the DTH impactor 1; the high-pressure slurry pipeline 5 is separated from the high-pressure air pa...

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Abstract

The invention provides a down hole impacting rotary jetting mixing pile construction technology and device. The down hole impacting rotary jetting mixing pile construction device includes a drill rod, a down hole impacting device arranged at the bottom end of the drill rod, a mixing device connected to the lateral side of the drill rod or the down hole impacting device, and a nozzle arranged on the lateral side of the down hole impacting device. A communicating high-pressure air passageway is arranged among the drill rod, the nozzle and the down hole impacting device. The above down hole impacting rotary jetting mixing pile is adopted in the down hole impacting rotary jetting mixing pile construction technology. By means of the down hole impacting rotary jetting mixing pile construction technology and device, the stratum adaptability is high, and pollution and influences of industrial production to the environment are reduced.

Description

Technical field [0001] The invention relates to the field of geotechnical engineering, in particular to a construction technology and equipment for a down-the-hole impact rotary jet mixing pile. Background technique [0002] High-pressure jet grouting piles are used to reinforce the foundations of silt, silt, fill, sand and other soils, and are more used to stop water in foundation pits, water conservancy, and subway projects. Due to the low power of the equipment of the traditional rotary jetting process, when constructing hard formations such as pebble and gravel layers, the quality factors such as the depth of the hole, the verticality, and the diameter of the pile body cannot be guaranteed. The water stopping effect is general and the amount of reflow is large. The utilization rate of cement is low, the construction site is messy and the cleaning work is heavy. [0003] Cement mixing pile is a method used to treat silt, silty soil, silt, sandy soil, peat soil and other saturat...

Claims

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Application Information

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IPC IPC(8): E02D5/46
CPCE02D5/46Y02W30/91
Inventor 张亮戴斌刘宏运朱允伟马云飞郭大庆马恩帅张斌
Owner BEIJING RONGCHUANG GEOTECHNICAL ENG CO LTD
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