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[提要]  根據(jù)基底下埋設(shè)土壓力盒的觀測(cè)結(jié)果，研究了墩-筏基礎(chǔ)的工作機(jī)理；明確了基底壓力及分布；分析了墩與筏基的荷載分配比。應(yīng)用該項(xiàng)成果已成功地設(shè)計(jì)了另一幢14層建筑的基礎(chǔ)，并獲得了較好的經(jīng)濟(jì)效益。
[關(guān)鍵詞]  墩 筏 接觸壓力 地基 承載力 傳感器 土壓力盒

This paper investigates the performance of a pier-raft foundation in situ. The contact pressure and its distribution, the load sharing between piers and the raft are monitored by the installed earth pressure cells at pier-soil and raft-soil interfaces. Testing results shows that this type of foundation can result in economical advantages with respect to optimized load transfer to the subsoil, which have been successfully applied to a building foundation design in Shenyang.
Keywords: pier; raft; contact pressure; bearing capacity; transducer; pressure cell