土工基础

›› 2019, Vol. 33 ›› Issue (3): 370-374.

• 工程实录 • 上一篇    下一篇

堤坝防渗墙完整性快速检测方法及数值仿真

王远明1,姚海林2,车爱兰3,李 恒1,4，骆行文2,卢 正2   

  1. （1.黑龙江省三江工程建设管理局，哈尔滨 150081；2.中国科学院武汉岩土力学研究所，武汉 430071；3.上海交通大学，上海 20040；4.黑龙江省松花江工程建设管理处，哈尔滨 150081)
  • 收稿日期:2018-08-01 修回日期:2018-08-03 出版日期:2019-06-20 发布日期:2019-08-16
  • 作者简介:王远明（1984-），男，高级工程师，在职博士生，研究方向为水利水电工程。
  • 基金资助:

    黑龙江省应用技术研究与开发计划项目（GZ16B007）

Fast Testing Methods and Numerical Analysis on the Integrity of a Levee Cut-off Wall

WANG Yuanming1, YAO Hailin2, CHE Ailan3, LI Heng1,4, LUO Xingwen2， LU Zheng2   

  1. (1.Sanjiang Engineering Construction Administration Bureau of Heilongjiang Province, Harbin 150081；
    2.Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, 430071；
    3.Shanghai Jiaotong University, Shanghai, 2002404；
    4.Songhuajiang Engineering Construction Administration Office of Heilongjiang Province, Harbin 150081)
  • Received:2018-08-01 Revised:2018-08-03 Online:2019-06-20 Published:2019-08-16

摘要： 堤坝防渗墙的质量安全关乎国计民生，寻求有效方法快速检测防渗墙缺陷十分重要。弹性波映像法是基于弹性波反射原理的无损检测方法，具备检测效率高、结果直观等特点。针对堤坝防渗墙的常见缺陷类型，以弹性波在堤坝模型中的传播特性为理论基础，采用数值模拟方法分别分析了弹性波在防渗墙竖向通缝缺陷、防渗墙深度不足、空洞缺陷处的传播特性，根据计算结果建立响应能量与防渗墙缺陷之间的关系，为堤坝防渗墙缺陷的检测提供了一种快速的评价方法。

关键词: 堤坝防渗墙, 弹性波映像法, 弹性波传播特性, 缺陷, 评价方法

Abstract: Both quality and safety of levee cutoff walls are very important for the nation's economics and people's daily activities, therefore, effective and fast testing methods of the integrity of these levee cutoff walls are necessary. The elastic wave imaging method is a nondestructive testing method based on the elastic wave reflection principles and it has the advantages of high efficiency and direct testing results. Based on the elastic wave propagation in the levee theory, this paper presents the numerical analysis results for different types of defects that are commonly encountered in the construction, such as, vertical throughout joints, cutoff wall that does not reach its design depth, and voids in the concrete. The relationships between the response energy and the defects in the levee cutoff wall are established. It is possible to provide a fast defect testing method for the integrity of the levee cutoff walls.

Key words: Levee Cut-off Wall, Elastic Wave Imaging Method, Characteristic of Elastic Wave Propagation, Defects, Evaluation Methods