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水泥土围护墙是由深层搅拌机用连续搭接施工方法将水泥和原状土均匀搅拌而形成的一种挡土墙。由于水泥土的渗透系数一般不大于10~(-7)cm/s,因此这类挡土墙具有良好的抗渗性能。一般用于开挖深度4～7m的中小型基坑可不设支撑。本文按作者已在1996年日本东京第二届地基加固国际会议发表的文章和已编写完成的上海市基坑工程设计规程(报批稿)撰写,并增加了工程计算实例,以便于设计人员实际应用。
The cement and soil retaining wall is a kind of retaining wall formed by continuous lap joint construction method of the deep mixer to evenly mix the cement and the original soil. Since the permeability coefficient of cement soil is generally not more than 10~(-7)cm/s, such retaining walls have good impermeability. Generally used for excavation depth 4 ~ 7m small and medium-sized pit can not support. This article is based on the article that the author has published in the second foundation reinforcement international conference in Tokyo, Japan in 1996, and the design regulations (receipt approval draft) of the Shanghai foundation pit project that has been written and completed, and adds engineering calculation examples to facilitate the practical application of the designer. .