富水断层非标准三角堰测法流量计算方法及工程应用  

Flow calculation method and engineering application of non-standard triangle weir measurement method for rich-water faults

作　　者：牟勇忠 周传波[1] 肖文芳 蒋楠[1] 吴廷尧 杜超飞 刘赶平 刘磊 Mou Yongzhong;Zhou Chuanbo;Xiao Wenfang;Jiang Nan;Wu Tingyao;Du Chaofei;Liu Ganping;Liu Lei(Faculty of Engineering,China University of Geosciences(Wuhan),Wuhan 430074,China;College of Architecture and Engineering,Guizhou Minzu University,Guiyang 550025,China;College of Urban-rural Planning and Civil Engineering of Guiyang University,Guiyang 550005,China;Third Engineering Co.,Ltd.,Sixteenth Bureau Group of China Railway,Huzhou Zhejiang 313000,China)

机构地区：[1]中国地质大学(武汉)工程学院,武汉430074 [2]贵州民族大学建筑工程学院,贵阳550025 [3]贵阳学院城乡规划与建筑工程学院,贵阳550005 [4]中铁十六局集团第三工程有限公司,浙江湖州313000

出　　处：《地质科技通报》2020年第6期185-192,共8页Bulletin of Geological Science and Technology

基　　金：中铁十六局集团第三工程有限公司科研项目(2017056179);贵州省教育厅青年科技人才成长项目(黔教合KY字[2019]083);贵州省科技厅基础研究项目(黔科合基础[2019]1173)。

摘　　要：公路、铁路、水利水电、矿山等隧道工程建设和运营过程中,不可避免地会遭遇塌方、突涌水等地质灾害问题,围岩失稳破坏和渗流突变是发生突水的直接原因。为查明龙南隧道F8富水断层洞身范围涌水来源及其涌水量的大小,采用非标准三角堰测法结合矩形堰测法现场监测F8断层地表上、下游流量。本研究提出非标准三角堰测法的基本概念,并根据标准三角堰测法流量公式,结合流量的等效原理,推导出了非标准三角堰测法流量公式。通过理论与实测数据进行比较,证明了本公式的合理性。研究结果表明,非标准三角堰测法流量公式的推导为现场流量实测提供了方便,克服了标准三角堰测法公式适用范围不足的缺点,为分析断层破碎带洞身围岩范围内涌水量大小提供了可靠依据。In the construction and operation of tunnels such as highways,railways,water conservancy and hydropower,and mines,it is inevitable to encounter geological disasters such as collapse and water inrush.The instability and destruction of surrounding rocks and seepage sudden change are the direct causes of water inrush.To find out the source of water inrush and the amount of water inrush in the area of F8 rich-water faults of Longnan tunnel,the non-standard triangular weir measuring method and the rectangular weir measuring method are used to monitor the flow of F8 surface upstream and downstream.In this paper,the basic concept of non-standard triangular weir method is put forward,and according to the flow formula of standard triangular weir measuring method and the principle of flow equivalence,the flow formula of non-standard triangular weir measuring method is derived.The rationality of the formula is proved by comparing the theory with the measured data.The results show that the derivation of the flow formula of the non-standard triangular weir measurement method provides convenience for the field flow measurement,overcomes the shortcomings of the application scope of the standard triangular weir measurement method formula,and provides a reliable basis for the analysis of the water inflow in the surrounding rock of the tunnel body in the fault fracture zone.

关 键 词：富水断层 非标准三角堰测法 矩形堰测法 流量公式 流量等效原理 

分 类 号：X43[环境科学与工程—灾害防治]