摘要
川藏公路二郎山隧道是国家“九五”重点建设工程。长期以来龙胆溪滑坡影响川藏公路这一交通大动脉 ,由于紧邻公路的滑坡体规模大 ,滑面深、稳定性差 ,设计采用了较长的堆积体锚索 (76m)和较深的堆积体抗滑桩 (6 5m) ,而在国内外还没有类似工程的成功经验 ,特别是在松散堆积体中进行大口径跟管钻进 ,其难度很大。结合工程实践 ,首次成功开发对心式、自锐式跟管钻具及配套的工艺技术 ,很好地解决了工程难题 。
The Erlang Mountain's tunnel on the Sichuan Tibet Highway is one of the key projects of the country during the Ninth Five Year Plan period. The Longdanxi Landslide has affected the normal traffic of the Sichuan Tibet Highway for a long time. Because the sliding body is big in size, deep in sliding surface and bad in stability, the longer anchor cable (76 m) and the deep anti sliding pile (65 m) for the accumulation body have been adopted in the design. There is no successful experience for such engineering at home and abroad. Specially, it is difficult for the big mouth to drill with casing in the loose accumulation body. According to the project's construction, we developed the centering and self sharp drilling machine with casing and some corresponding techniques, which solved the difficulties in the construction. This paper also puts forward some relative construction measures for the different accumulation bodies.
出处
《水力发电》
北大核心
2003年第1期41-42,58,共3页
Water Power
关键词
滑坡
治理
冲击跟管钻进
堆积体
抗滑桩
锚索
川藏公路工程
landslide treatment, drilling with casing, accumulation body, anchor, anti sliding piles, Sichuan Tibet Highway Project
