基于高密度面波技术的堆石坝密实度检测初探  

Preliminary study on compactness detection of rock-filled dam based on high-density surface wave technology

作　　者：克里木 李辉[2] 冯少孔[3] 朱新民[2] 黄涛 Kelimu;LI Hui;FENG Shaokong;ZHU Xinmin;HUANG Tao(Xinjiang Administration of Water Resources and Hydropower Planning and Design,Urumqi 830000,China;State Key Laboratory Simulation and Regulation of Water Cycle in River Basin,China Institute of Water Resources and Hydropower Research,Beijing 100038,China;School of Naval Architectural,Ocean and Civil Engineering,Shanghai Jiao-tong University,Shanghai 200240,China)

机构地区：[1]新疆水利水电规划设计管理局,新疆乌鲁木齐830000 [2]中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京100038 [3]上海交通大学船舶海洋与建筑工程学院,上海200240

出　　处：《中国水利水电科学研究院学报》2020年第5期337-346,共10页Journal of China Institute of Water Resources and Hydropower Research

基　　金：国家重点研发计划项目(2018YFC0406901)。

摘　　要：堆石坝密实度是评价其质量好坏的重要指标。本文以高密度面波的基本原理为基础,建立了不同密实度堆石体的数值模型,采用有限元数值模拟法,研究面波在堆石体结构中的传播特性,建立了堆石体密实度与面波速度的关系曲线,并对已建水库的堆石坝进行了工程应用,同时论述了有限元数值建模和检测数据处理流程。可得出:(1)考虑基阶模态的反演分析时,堆石坝体密实度与面波波速成抛物线性关系,与材料的弹性模量相关性不大;(2)对已建堆石坝内部密实度进行快速的无损检测,并实现定量评价,可作为已建堆石坝压实质量评价的依据。The compactness of rock-filled dam is an important index to evaluate its quality.In this paper,numerical simulation of rock-filled models with different densities are established based on the basic princi-ples of high-density surface waves.The finite element method is used to study the propagation characteris-tics of surface waves in the rock-filled dam.The relationship curve between the different density of the rock-filled body and the surface wave velocity was established,and it was applied to the rock-filled dam of the built reservoir.The paper describes the finite element numerical modeling and processing flow of test data.It can be concluded that:1)When the inversion analysis of the fundamental mode is considered,the compactness of the rock-filled dam has a parabola relationship with the surface wave velocity,and has lit-tle correlation with the elastic modulus of the materials;2)The rapid non-destructive detection on the inter-nal density of the built rock-filled dam is carried out,and quantitative evaluation is also obtained,which is used as the foundation for the quality and safety evaluation of the built rock-filled dam.

关 键 词：堆石坝 高密度面波法 密实度 无损检测 

分 类 号：TV641.4[水利工程—水利水电工程]