摘要
以浅孔抽放钻孔密封机理为出发点,针对由于对钻孔周壁的裂隙场缺少必要研究而导致无法对注液参数进行明确量化标准的现状,建立了煤岩体裂隙的几何模型,运用数值模拟对粘液在钻孔周围裂隙中的渗透规律进行了模拟,通过对模拟数据的整理分析得到了注浆压力、粘液粘度与密封效果的关系。
Aiming at the present situation of no proper mucus quantitative criteria for the grouting parameters because of lack of research on the cracks around the borehole,the geometrical model of cracks was established and the mucus infiltration law in the cracks around the borehole was simulated on the basis of sealing mechanism of shallow-hole drainage.The influences of grouting pressure and mucus viscosity on the sealing effect were obtained according to the numerical simulation data.
出处
《中国煤炭》
北大核心
2011年第9期82-85,96,共5页
China Coal
基金
国家重点基础研究发展计划资助(973计划)(2011CB201205)
国家自然科学基金资助项目(51074161)
国家自然科学基金青年科学基金(50804048)
爆炸科学与技术国家重点实验室开放基金项目(KFJJ10-19M)
国家科技支撑计划项目(2007BAK00168-1)
关键词
浅孔抽放
孔隙结构
粘液渗流
数值模拟
shallow-hole drainage
pore structure
mucus infiltration
numerical simulation
