- 摘 要
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蔡來炳 （福建省建筑科學研究院 福州 350025）
[提要] 通過對118組水泥土攪拌樁的單樁承載力和復合地基承載力的現場載荷試驗統(tǒng)計分析，研究了水泥土攪拌樁的單樁承載特性以及復合地基的承載特性，討論了復合地基的承載力與復合地基置換率、加固深度以及承壓板尺寸的相互關系，闡述了水泥土攪拌法在加固軟土地基的應用中存在的主要問題，可為水泥土攪拌樁復合地基的設計和施工提供參考。
[關鍵詞] 水泥土攪拌樁 復合地基 承載力 平板載荷試驗The bearing characteristics are described from analyzing loading tests of cement-soil pile. Based on the analysis results of plate loading tests,the behaviors of composite foundation improved by cement-soil piles are discussed. The relations of replacement ratio,strengthening depth and loading plate dimension to the bearing capacity of composite foundation are given. The problems on the application of cement deep mixing method to improve the soft soil are interpreted. Finally several suggestions for the design and construction of cement-soil-pile composite foundation are provided.
Keywords: cement-soil pile; composite foundation; bearing capacity; plate loading test
