水力发电2026，Vol.52Issue(9)：22-30,9.
动水环境离散裂隙岩体时变浆液灌注仿真模拟
Modeling Time-dependent Grout Propagation in Discrete Fractured Rock Mass under Flowing Water Conditions
摘要
Abstract
In achieve the simulation of grouting in fractured rock masses under flowing water conditions,a coupled hydro-mechanical model is developed within a porous-fracture medium framework to describe the diffusion of time-dependent grout,and a three-dimensional discrete fracture network representative of underground engineering conditions is reconstructed using the Monte Carlo method,to analyze the grout propagation and sealing performance under high hydraulic head gradients.The results indicate that:the spatial architecture of fracture networks governs grout migration pathways,and the grout diffusion velocity decreases rapidly due to pressure attenuation and viscosity growth;increasing grouting pressure can effectively enhance the filling of secondary fractures,though the incremental sealing effect diminishes;with rising hydraulic gradient,grout propagation against the flow becomes more difficult,while downstream zones experience significant erosion and scouring,leading to premature termination of the effective filling process and a notable reduction in grout retention.关键词
岩体灌浆/突涌水/动水注浆/离散裂隙网络/数值模拟Key words
rock mass grouting/water inrush/grouting under flowing water/discrete fracture network(DFN)/numerical simulation分类
建筑与水利引用本文复制引用
贾荣谷,魏曦,梁金松,梅添平,鲁功达,高连通..动水环境离散裂隙岩体时变浆液灌注仿真模拟[J].水力发电,2026,52(9):22-30,9.基金项目
四川省国际科技创新合作项目(2025YFHZ0166) （2025YFHZ0166）
深地国家科技重大专项(2026ZD1011900) （2026ZD1011900）
