| An Approximate Analytical Solution for Grout Transport Modeling： A Case Study in Luling Mining, China |
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| 引用本文： | 钱家忠,葛晓光,周念清.An Approximate Analytical Solution for Grout Transport Modeling： A Case Study in Luling Mining, China[J].上海交通大学学报(英文版),2008,13(5):585-588. |
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| 作者姓名： | 钱家忠 葛晓光 周念清 |
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| 作者单位： | School of Natural Resources and Environmental Engineering，Hefei University of Technology，Department of Hydraulic Engineering，Tongji University |
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| 基金项目： | 国家自然科学基金，新世纪大学优秀人才计划 |
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| 摘 要： | This case study describes the effects of a grouting process developed to decrease groundwater flow exiting from a ruptured mine ventilation shaft lining in Luling coal mine at Huaibei, China. The primary purpose of grouting at this site is to prevent groundwater flow into the mine from adjacent aquifers. The study supports a transport perspective to describe the miscible grout movement, and provides an approximate analytical method to determine grout concentration based on Wilson and Miller's (1978) model. This study shows that the breakthrough curves (BTCs) established from the Wilson and Miller's model match the experimental BTCs obtained from test grouting performed at the site, and Rd a retardation factor of 1.1 is determined. The retardation factor and the BTC are subsequently used to guide the actual production grouting. The monitored result shows that the groundwater inflow at the disrupted ventilation well has been reduced by 47% after drilling and grouting just one borehole. The discharge rate was measured at no more than 4 m3/h after completion of four injection boreholes, which is about 13% of the 30 m3/h before grouting.
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| 关 键 词： | 地下水 流体水力学 矿山 水泥浆 |
An approximate analytical solution for grout transport modeling: A case study in Luling mining,China |
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| Jia-zhong Qian,Xiao-guang Ge,Nian-qing Zhou.An approximate analytical solution for grout transport modeling: A case study in Luling mining,China[J].Journal of Shanghai Jiaotong university,2008,13(5):585-588. |
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| Authors: | Jia-zhong Qian Xiao-guang Ge Nian-qing Zhou |
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| Institution: | (1) School of Natural Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, China;(2) Department of Hydraulic Engineering, Tongji University, Shanghai, 200092, China |
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| Abstract: | This case study describes the effects of a grouting process developed to decrease groundwater flow exiting from a ruptured mine ventilation shaft lining in Luling coal mine at Huaibei, China. The primary purpose of grouting at this site is to prevent groundwater flow into the mine from adjacent aquifers. The study supports a transport perspective to describe the miscible grout movement, and provides an approximate analytical method to determine grout concentration based on Wilson and Miller's (1978) model. This study shows hat the breakthrough curves (BTCs) established from the Wilson and Miller's model match the experimental BTCs obtained from test grouting performed at the site, and Rd a retardation factor of 1.1 is determined. The retardation factor and the BTC are subsequently used to guide the actual production grouting. The monitored result shows that the groundwater inflow at the disrupted ventilation well has been reduced by 47% after drilling and grouting just one borehole. The discharge rate was measured at no more than 4 m3/h after completion of four injection boreholes, which is about 13% of the 30 m3/h before grouting. |
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| Keywords: | grouting hydrodynamic dispersion mine shaft lining |
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