高拱坝坝肩岩体裂隙连通性分析方法研究  

Analysis method of rock mass fracture connectivity of high arch dam abutment

作　　者：杜朋召 王品 高平 DU Pengzhao;WANG Pin;GAO Ping(Yellow River Engineering Consulting Co.,Ltd.,Zhengzhou 450003,China)

机构地区：[1]黄河勘测规划设计研究院有限公司,郑州450003

出　　处：《水科学与工程技术》2020年第5期6-9,共4页Water Sciences and Engineering Technology

摘　　要：针对高拱坝坝肩平洞内众多裂隙的连通分析,提出了一种基于裂隙数学表达和空间分析的连通性判别方法。首先采用全站仪对裂隙出露点进行精准测量,获取出露点三维坐标;然后,通过三维坐标拟合裂隙面空间方程,计算裂隙产状;最后,通过设置产状限差,实现裂隙连通性判别,编制连通分析程序。以泾河东庄水利枢纽工程为例,进行坝肩裂隙产状计算和连通分析,结果表明该方法合理,可为其他岩体工程裂隙连通分析提供参考。Aiming at the problem of connectivity analysis of many rock fractures in the flat tunnel abutment of high arch dam,a connectivity discrimination method based on mathematical expression of fractures and spatial analysis is proposed.This method firstly uses the total station to accurately measure the dew point of the fracture to obtain the three-dimensional coordinates of the dew point;then,the three-dimensional coordinates are fitted to the space equation of the fracture surface to calculate the occurrence of the fracture;finally,the fracture is connected by setting the difference in the occurrence of the fracture Sex discrimination,compile connectivity analysis program. Taking Jinghe Dongzhuang water conservancy project as an example,the calculation of dam abutment rock fracture occurrence and connectivity analysis show that the method is reasonable and can provide a reference for other rock mass engineering fracture connectivity analysis.

关 键 词：岩体裂隙 连通分析 产状计算 高拱坝 

分 类 号：TU45[建筑科学—岩土工程]