多工艺旋挖钻进施工钻具及在冻土层中的应用

多工艺旋挖钻进施工钻具及在冻土层中的应用

刘三意^1,2,夏柏如¹

1.中国地质大学工程技术学院，北京 100083;2.中国地质科学院勘探技术研究所，河北廊坊 065000

收稿日期:2008-02-18 修回日期:1900-01-01 出版日期:2008-05-26 发布日期:2008-05-26
通讯作者: 刘三意

Multi-Process Rotary Digging Tools and Their Application in Frozen Formation

LIU San-yi^1，2,XIAO Bai-ru¹

1.College of Engineering Technology, China University of Geosciences, Beijing 100083,China;2.Institute of Exploration Techniques, Chinese Academy of Geological Sciences, Langfang,Hebei 065000,China

Received:2008-02-18 Revised:1900-01-01 Online:2008-05-26 Published:2008-05-26
Contact: LIU San-yi

摘要/Abstract

摘要： 针对我国旋挖钻进施工中存在旋挖钻具与主机不匹配、钻具结构形式与地层不适应等问题，研究开发了BS系列旋挖钻斗和AG系列螺旋钻头两种新型的旋挖施工钻具。通过在青藏铁路冻土层基础桩施工中的应用，钻进平均时效达6～10 m/h，较进口同类型钻具提高2～4倍，解决了我国大口径基础桩冻土层施工的技术难题。

关键词: 多工艺, 旋挖, 钻具, 冻土层

Abstract: According to the problems of mismatching drilling tools with drilling rigs and maladjustment the structure of drilling tools to strata for the application of the rotary digging technology in China, the BS series of buckets and the AG series auger bits were developed. The benefits were resulted in field application case of Qing Tibet railway, and the technology problems of construction large diameter plies in frozen earth were solved. The average drilling PRM is 2～4 times than the import tools and up to 6～10 m/h.

Key words: multi-process, rotary digging, drilling tool, frozen formation

中图分类号:

P634.4

刘三意,夏柏如. 多工艺旋挖钻进施工钻具及在冻土层中的应用[J]. J4, 2008, 38(3): 460-0462.

LIU San-yi,XIAO Bai-ru. Multi-Process Rotary Digging Tools and Their Application in Frozen Formation[J]. J4, 2008, 38(3): 460-0462.

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