Ground settlement value is forecast. The results show that the precision of this method is high and spatial effect is necessary.
结果表明，该方法精度较高，在进行地表沉降分析时，考虑空间效应是必要的。
The seepage field is coupled with stress field, which is simulated by FEM. The value of ground settlement of foundation pit is acquired.
把由开挖产生的应力场与渗流场叠加，并通过有限元模拟，求取基坑周边地表沉降值。
With the allowable maximum ground settlement as target value, a dynamic optimization model is designed to draw up the strategy(technical measures) controlling the effect of tunnelling on environment.
以地表最大允许沉降值 作为目标控制值，设计了一个用于制定隧道工程环境影响控制策略（施工技术措施）的动态优化模型。
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