沥青混凝土心墙土石坝水力劈裂计算分析  

Calculation and Analysis on Hydraulic Fracturing of Asphalt Concrete Core-wall Earth-rockfill Dam

作　　者：代凌辉[1,2] 张营营[1,2] 吴佳 

机构地区：[1]黄河水利职业技术学院,河南开封475004 [2]小流域水利河南省高校工程技术研究中心,河南开封475004 [3]河南省驻马店水文水资源勘测局,河南驻马店463000

出　　处：《黄河水利职业技术学院学报》2016年第1期15-17,共3页Journal of Yellow River Conservancy Technical Institute

基　　金：黄河水利职业技术学院校内科研基金:深厚覆盖层上沥青混凝土心墙坝应力应变仿真分析(2014QNKY013)

摘　　要：分析了土石坝水力劈裂原理,针对新疆吐鲁番二塘沟沥青混凝土心墙土石坝,选取河床部位最大断面为典型断面,采用有限元法对其进行水力劈裂计算分析,得出:该土石坝心墙任一高程处的中主应力都小于竖向应力,且中主应力和竖向应力都大于水压力。因此,该坝的心墙不会发生水力劈裂。This paper analyzes the principle of earth-rockfill dam hydraulic fracturing, selects the biggest section in river area for typical sections and conducts the calculation and analysis of hydraulic fracturing by using the finite element method for Xinjiang turpan ertanggou asphalt concrete core-wall earth-rockfill dam. It comes to the conclusion that the intermediate principal stress of any elevation in core-wall earthrockfill dam is less than the vertical stress, and the intermediate principal stress and vertical stress is greater than the water pressure. So, the core-wall hydraulic fracturing of the dam is not going to happen.

关 键 词：土石坝 沥青混凝土心墙 水力劈裂 有限元法 中主应力 竖向应力 

分 类 号：TV641[水利工程—水利水电工程]