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一、前言挡土墙的设计和计算还存在着很多问题,现场普遍反映是挡土墙断面尺寸过大,不少单位均在研究和总结生产实践经验,力求挡土墙的断面经济合理,以满足社会主义建设的需要。影响挡土墙断面尺寸的因素较多,计算土压力时参数的选择尤其影响较大。关于墙背摩擦角δ,目前还没有较为合理的方法来确定,甚至对影响δ因素的某些概念上尚有不同的认识。 1973年中国建筑工业出版社出版的《建筑结构设计手册—挡土墙》一书中对影响δ的因素明确指出:墙背在墙踵处向填土方向与水平
I. Preface There are still many problems in the design and calculation of retaining wall. The site generally reflects the oversized section of retaining wall. Many units are studying and summarizing the production practice experience, and strive to be economical and reasonable with the section of retaining wall Meet the needs of socialist construction. There are many factors that affect the size of the retaining wall section, especially the choice of parameters when calculating earth pressure. There is not a reasonable way to determine the friction angle δ of the back of the wall yet, and even some concepts on the δ factors have different understandings. In 1973, China Building Industry Press published “Building Structure Design Handbook - retaining wall,” a book on the factors that affect the δ clearly pointed out: the wall at the heel to fill the direction and level