我国沥青混凝土防渗工程技术的发展与展望  

Development and prospect of hydropower project with asphalt concrete impervious elements in China

作　　者：郝巨涛 刘增宏[2] 汪正兴[2] HAO Jutao;LIU Zenghong;WANG Zhengxing(State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin,Beijing 100038,China;China Institute of Water Resources and Hydropower Resources,Beijing 100038,China)

机构地区：[1]流域水循环模拟与调控国家重点实验室,北京100038 [2]中国水利水电科学研究院,北京100038

出　　处：《水利学报》2018年第9期1137-1147,共11页Journal of Hydraulic Engineering

基　　金：国家重点研发计划项目(2017YFC0404803);流域水循环模拟与调控国家重点实验室自主研究课题(SM0112B242018);中国水科院科研专项(SM0145B632017)

摘　　要：本文针对国内沥青混凝土防渗技术发展中的热点问题进行了评述和分析,包括学习掌握国外先进机械化施工技术,以骨料高级配指数方法解决沥青面板高温流淌问题,以SBS改性沥青技术解决沥青面板低温抗裂问题,以及目前还处于探索研究阶段的沥青混凝土面板老化评估和修补技术研究,沥青混凝土的水损害评估和酸性骨料应用技术研究,沥青混凝土心墙的水力劈裂问题研究等。可以预见,这些技术的研究进步必将在未来进一步助力沥青混凝土防渗技术的发展。Hot issues in the modern construction of hydropower project with asphalt concrete impervious elements in China have been reviewed and commented in this paper, which began in 1995 with the commencement of Tianhuangping Project using the western mechanization technology. Since then, the flow-offdefects of asphalt facing at high temperature, pervasive before 1990 s in China, has been prevented bymeans of a new mix design method with higher mixing index. Low temperature cracking of asphalt facing atextremely low temperature has also been avoided with the aid of special developed bitumen modified by SBS polymer. At present,new topics have been discussed and under studied,such as the aging of asphaltfacing and the repair method,the evaluating method of water damage and the application of acid aggregateto the asphalt concrete, hydraulic fracturing of asphalt core wall, etc, which will deepen the comprehension of the nature of hydraulic asphalt concrete.

关 键 词：沥青混凝土 沥青混凝土防渗 水力劈裂 低温抗裂 老化 酸性骨料 斜坡流淌 

分 类 号：TU528.42[建筑科学—建筑技术科学]