地震作用下三峡围堰砂土液化及堰体动力稳定性

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英文篇名：Liquefaction of Sands in TGP Cofferdam and Its Dynamic Stability in Earthquake 中文刊名：长江科学院院报 英文刊名：JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTITUTE 作者：钱胜国 ; 包承纲 ; 陈玲玲 英文作者：Qian Shengguo ; Bao Chenggang ; Chen Lingling (Yangtze River Scientific Research Institute ; Wuhan 430010) 中文关键词：三峡工程 ; 二期围堰 ; 砂土液化 ; 动力有限元 ; 动力稳定 英文关键词：TGP ; 2nd stage cofferdam ; liquefaction of sand ; dynamic FEM ; dynamic stability 出版日期：1998-02-28 机构：长江科学院爆破与振动研究所 年：1998 期：01 出版单位：长江科学院院报

摘要

采用经典液化判别法与剪切波速判别法研究了堰基淤砂及堰体抛填风化砂的液化问题，并分别依据非线性、等效线性、稳态理论，按有限元方法进行了堰体动力响应及动力稳定计算分析，综合评价了其抗震安全性，并就抗液化的工程措施提出了建议。
Using classic liquefaction discriminant and shear wave velocity discriminant, the liquefaction of weathered sands filled in the cofferdam and silt in its foundation is studied. Based on the theories of nonlinearity, equivalent linearity and stability, respectively, and employing FEM, a calculating analysis on cofferdam dynamic response and dynamic stability is performed and its aseismic security is evaluated. And some engineering measures on anti liquefaction are proposed.

引文

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