土工基础

›› 2017, Vol. 31 ›› Issue (5): 633-636.

• 工程实录 • 上一篇    下一篇

基于土工试验和数值模拟的堤防险情原因分析

赵文超1，王汉武2，任佳丽2   

  1. （1.南水北调中线干线辉县管理处，河南新乡 453600；2.长江水利委员会长江科学院，武汉 430014）
  • 收稿日期:2016-11-23 修回日期:2016-12-01 出版日期:2017-10-20 发布日期:2017-10-29
  • 作者简介:赵文超（1983-），男，工程师，研究方向为水利水电施工与管理。
  • 基金资助:

    中央级公益性科研院所基本科研业务费专项资金课题（CKSF2015038/YT）

Factors Resulting Levee Instabilities from Numerical Analysis and Laboratory Test Results

ZHAO Wenchao1, WANG Hanwu2, REN Jiali2   

  1. (1.Huixian Management Bureau of Middle Route of the SouthtoNorth Water Transfer Project, Xinxiang, 453600;
    2.Changjiang Academy of Sciences, Changjiang Water Resources Commission, Wuhan, 430014)
  • Received:2016-11-23 Revised:2016-12-01 Online:2017-10-20 Published:2017-10-29

摘要： 基于室内土工试验和有限元数值模拟，结合以往历史资料，对某长江2级堤防进行险情原因分析。根据现场查勘情况，以及堤顶、堤脚、滩地三处土体物理力学指标的差异，综合判断堤防险情是由堤基的不均匀沉降引起的，并结合数值模拟排除了大堤的失稳问题。

关键词: 险情原因, 室内土工试验, 数值模拟, 不均匀沉降

Abstract: The instability of a Yangtze River levee was numerically evaluated with laboratory test results and historical data. The mechanical and physical differences of soil sample from crest, toe of the levee and from the bank of the river were evaluated. It is concluded that the hazards on the levee was caused by the differential settlement. The observed results are also in consistent with the numerical analysis results.

Key words: Factors Resulting Levee Instability, The Indoor Soil Test；Numerical Simulation, Differential Settlement