沉箱码头砂土地震液化后地基承载力计算方法

英文篇名：Sandy soil seismic liquefaction instability mechanism of the caisson wharf structure
中文刊名：山西建筑
英文刊名：Shanxi Architecture
作者：孙恒矗
英文作者：Sun Hengchu ; Guangzhou Branch ; Beijing Institute of Architectural Design
中文关键词：码头 ; 砂土液化 ; 失稳机理 ; 流体
英文关键词：caisson wharf ; sandy soil seismic ; instability mechanism ; liquefaction
出版日期：2015-06-01
机构：北京市建筑设计研究院有限公司广州分公司;
年：2015
期：16
出版单位：山西建筑

摘要

依据Prandtl机构,提出了砂土地震液化后港口码头地基承载力的计算方法,并对某沉箱码头地震后的地基承载力进行了分析,结果表明:地震力作用下,砂土孔隙水压力增大,对沉箱结构的水平力增大,弯矩增大,从而使沉箱结构偏心距增大,地基水平及竖向承载力出现不足,最终沉箱结构出现向海侧的平移、转动和沉降。
Based on Prandtl institutions,puts forward the foundation bearing capacity calculation method of wharf structure after earthquake liquefaction,and the foundation bearing capacity of a caisson wharf structure after the earthquake are analyzed. The result shows that under the action of earthquake,sandy soil pore water pressure increases,the horizontal force of caisson structure increases,bending distance increase. To make the caisson structure eccentricity increases,vertical bearing capacity of the foundation level and insufficient. Eventually the caisson structure appeared to the translation,rotation,and deposition of the sea side.

引文

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