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采用ｍ 法，控制桩身最大变形，通过对给定基坑外地表最大沉降量情况下的悬臂式桩排支护结构进行优化设计，来考虑基坑开挖的环境效应。经工程验证表明，效果明显。
The m-method is used to control the maximum deformation of the pile body, and the environmental effects of the excavation of the foundation pit are considered by optimizing the design of the cantilever pile supporting structure under the maximum settlement of the ground surface outside the given foundation pit. The engineering verification shows that the effect is obvious.