Through analyzing the causes of international square foundation pit risks in Changsha,it proposes reinforcement scheme,and summarizes deep foundation pit support design and construction experience in pebble bed areas,so as to guide foundation reinforcemen%通过长沙某国际广场基坑产生险情的原因进行分析,提出了加固处理方案,同时,总结了深厚卵石层地区深基坑支护设计与施工的一些经验,从而指导类似地质条件下基坑加固。
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