水利学报2017，Vol.48Issue(8)：945-954,10.DOI:10.13243/j.cnki.slxb.20161101
坝基裂隙岩体三维灌浆数值模拟
Three-dimensional grouting simulation in fractured rock mass of the dam bedrock
摘要
Abstract
It is important to have a good understanding of the accuracy of 3D fracture network model and the spread process of the grouting.Current 3D geological model are not efficient and cost-effective in visualizing complex fracture distribution for grouting simulation.Researches on grouting simulation simplified the stochastic fracture as one planar fracture or regular fracture network.To solve the above problems,the Carlo Monte method is adopted and a 3D stochastic fracture network model is established.Considering Bingham fluid characteristic,a three-dimensional grouting model is proposed.The bedrock curtain grouting of a hydropower station is taken as a case.The results show that the grout almost flows in the fractures that pass through the borehole,and grouting pressure decreases the fastest near the borehole and affects the diffusion markedly.Compared with the traditional results,this method can not only reveal the actual fractures features,but also obtain more reliable simulation results,which provides a reliable theoretical basis for engineering safety and economic efficiency.关键词
灌浆模拟/坝基裂隙岩体/三维随机裂隙网络模型/三维裂隙宾汉姆流体灌浆数学模型/宾汉姆流体/Monte Carlo法Key words
grouting simulation/fractured rock mass of bedrock/3D stochastic fracture network model/3D mathematical model of fracture grouting/Bingham fluid/Monte Carlo method分类
建筑与水利引用本文复制引用
敖雪菲,王晓玲,赵梦琦,吴含,祝玉珊..坝基裂隙岩体三维灌浆数值模拟[J].水利学报,2017,48(8):945-954,10.基金项目
国家自然科学基金创新研究群体科学基金项目(51621092) （51621092）
国家自然科学基金重点项目(51439005,51339003) （51439005,51339003）
