基坑竖向围护结构变形对周边地表沉降的影响
Impact of Foundation Pit Vertical Support Structure Deformation on Surrounding Ground Surface Settlement
摘要
基坑开挖卸荷将导致周边一定范围内土体发生水平和竖向变形,进而对周边环境产生影响。为此,以考虑土体小应变刚度特性的有限元方法对基坑施工时竖向围护结构不同的变形影响进行分析,并将变形影响区大致简化为规则的几何形状。验算结果:在围护结构变形控制值相同条件下,踢脚变形值最大,复合变形和内凸次之,悬臂最小;但变形范围却是悬臂处最大,复合变形和内凸次之,踢脚最小。
出处
《建筑施工》
2016年第9期1217-1219,共3页
Building Construction
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