矿山动水空洞条件下湖泥-水泥固化浆液抗冲散性模型试验  

Model Test on Anti-dispersion Performance of Solidified Slurry with Lake Mud and Cement Under the Condition of Mine Hydrodynamic Cavity

作　　者：彭国威 张云毅[1,2] 王颖卓 张可能[1,2] 但新民 桑康云 于佳维 朱仰凯 PENG Guowei;ZHANG Yunyi;WANG Yingzhuo;ZHANG Keneng;DAN Xinmin;SANG Kangyun;YU Jiawei;ZHU Yangkai(Key Laboratory of Nonferrous Metals Metallogenic Prediction and Geological Environment Monitoring,Ministry of Education,Central South University,Changsha,Hunan 410083,China;School of Geoscience and Info-Physics,Central South University,Changsha,Hunan 410083,China;Chengmenshan Copper Mine,Jiangxi Copper Co.,Ltd,Jiujiang,Jiangxi 332000,China)

机构地区：[1]中南大学有色金属成矿预测与地质环境监测教育部重点实验室,湖南长沙410083 [2]中南大学地球科学与信息物理学院,湖南长沙410083 [3]江西铜业有限公司城门山铜矿,江西九江市332000

出　　处：《矿业研究与开发》2021年第8期134-138,共5页Mining Research and Development

基　　金：国家自然科学基金项目(41972292)。

摘　　要：矿山动水空洞注浆一直是矿山帷幕注浆中的一大难点。针对城门山铜矿三期帷幕注浆中的动水空洞,研制了一种湖泥-水泥固化浆液,采用室内模拟注浆试验研究浆液的扩散规律和抗水冲散性能。通过试验获取了不同动水流速和浆液坍落度条件下的浆液留存率,明确了浆液留存率与流速和坍落度之间的关系。研究结果表明:浆液的抗水冲散性能与浆液的坍落度和动水流速皆成负相关,在动水流速不大于1.5 m/s的情况下,浆液的抗水冲散性能较好。The grouting of mine hydrodynamic cavity is always a difficult point in curtain grouting.Aiming at the hydrodynamic cavity in the third stage of curtain grouting in Chengmenshan Copper Mine,a kind of solidified slurry with lake mud and cement was developed.And the indoor simulation grouting test was used to study the diffusion law and anti-dispersion performance of the slurry.Grout retention ratios under different water velocities and slurry slumps were obtained through the test,and.The results show that the anti-dispersion performance of the slurry is negatively correlated with the slump and water velocity.When the flowing water velocity is no greater than 1.5 m/s,the anti-dispersion performance of the slurry is good.

关 键 词：矿山动水空洞 湖泥-水泥固化浆液 抗水冲散性能 浆液留存率 

分 类 号：TD745[矿业工程—矿井通风与安全]