摘要
首次针对新疆地区220kV输电线路工程典型的强风化岩体地质条件,进行了六根单锚基础的抗拔承载力真型试验,得到了其破坏性态与极限承载力,给出了相关设计计算参数的取值,为其在输电线路工程中的应用提供参考。
The rock anchor foundation can be widely used for the practical engineering in the transmission lines of mountain areas. Aiming at the highly weathered granite, six representative field prototype tests about the rock anchor foundation were carried out for a 220kV electric power transmission line in Xijiang mountain areas. The tests mainly include the vertical uplift loading in order to obtain such parameters as the bearing capacity and the bond strength between anchor bar and concrete for design of the rock anchor foundation. Based on the testing results, the typical failure modes of foundations, and the load-displacement relations are obtained. The testing results indicate that the rock anchor can be applied in moderately and strongly weathered rock foundations with good economic benefit.
出处
《建筑科学》
北大核心
2012年第9期57-59,共3页
Building Science
基金
国家电网公司科技项目(SGKJ[2007]1027
GC71-09-004)
关键词
输电线路
岩石锚杆基础
真型试验
极限抗拔承载力
transmission line
rock anchor foundation
full-scale experiment
ultimate uplift bearing capacity
