软土地区基坑支护中地表沉降的实用评估方法

Practicality calculation measure of ground displacement of Deep Foundation in Soft Clay Area

根据软土地区深基坑的经验公式 ,推导出深基坑开挖中由支护结构变形引起地表沉降的估算公式 ,提出了按正态分布密度函数拟合基坑周围地表沉降曲线的方法 ,结合工程实例 ,与现场实测值作对比分析 ,说明该方法具有一定的实用性和可行性。

Based on the empirical formula of ground settlement, this paper deduces a new calculating formula of it by displacement of support structure. Ground settlement curve is imitated with normal school curve. To contrast forcasted settlement with true measured, the engineering example shows that this method is practical and reasonable.The method of calculating ground settlement caused by wall deformation presented. The details on reducing settlement are also discussed.