重庆地区岩溶地质条件下架空输电线路地基处理方案探讨

A Study on the Foundation Treatment Schemes for Overhead Transmission Lines in the Karst Geological Condition of Chongqing

针对岩溶地质条件下架空输电线路工程的特点,总结了主要勘察设计思路,建议施工阶段采用信息法施工方式解决岩溶地质问题,并提出了几种岩溶地质段输电线路地基处理方式,即避、补、跨、穿等方式。在实际工程处理中,应根据工程优化原则,进行多方案综合分析比较,一方面是路径优化与地基处理的技术经济比选,另一方面是地基处理方式的技术经济对比分析,最后确定最优的处理方案。

Based on the features of overhead transmission line projects in the karst geological condition,this paper summarizes main ideas of the survey and design as well as suggesting using the information method during the construction stage.Besides,it presents such foundation treatment schemes as avoiding,filling,crossing and traversing.Comprehensive analyses and comparisons should be done according to the principle of engineering optimization in actual projects.Technical and economical contrasts and analyses should be done not only between the route optimization and the foundation treatment but also among different foundation treatment schemes to determine the optimal one.