裂隙岩体渗流的优势水力路径  

Preferential Flow Pathways in Fractured Rock Mass

作　　者：倪绍虎[1,2] 何世海[1] 汪小刚[2] 吕慷[1] 

机构地区：[1]中国水电顾问集团华东勘测设计研究院,浙江杭州310014 [2]中国水利水电科学研究院,北京100038

出　　处：《四川大学学报（工程科学版）》2012年第6期108-115,共8页Journal of Sichuan University (Engineering Science Edition)

基　　金：国家自然科学基金资助项目(511109221)

摘　　要：优势水力路径是裂隙岩体中的主要渗透通道,是岩土工程中必须考虑和解决的问题。通过分析裂隙岩体渗流优势水力路径的形成机理及编制相应的分析程序,研究优势水力路径的主要表现形式及其应力相关性。研究表明,裂隙岩体中的优势水力路径客观存在于由连通裂隙簇、优势节理裂隙组、主干裂隙等形成的水力连通裂隙网络中,其分布与优势裂隙组和长大裂隙的分布及应力环境极其相关。通过分析裂隙岩体的优势水力路径,确定裂隙岩体中地下水的潜在渗透通道和分布状态,为边坡工程、地下工程等岩土工程的设计施工提供参考依据。Based on the formation mechanism of preferential flow pathways in fractured rock masses and compiling useful programs, hy- draulic properties of preferential flow pathways were briefly discussed and the stress-dependent properties were studied. The results in- dicated that the preferential flow pathways widely exist in interconnected fracture networks, dominant sets of joints or fractures and faults zone in fractured rock masses. Preferential flow pathways are remarkably correlative with the distribution of dominant sets of frac- tures and faults zone. According to the results, the water flow channeling and their distribution could be determined. Also, the rational recommendations were made for the design and construction in slope engineering and underground engineering.

关 键 词：岩石力学 裂隙岩体 水力学特性 渗透通道 优势水力路径 

分 类 号：TU45[建筑科学—岩土工程]