| 老挝东泰钾盐矿水文地质特征分析及防治水方案探究 |
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| 引用本文： | 杨小三,张宪峰,张志远,陈文霞,熊玉强.老挝东泰钾盐矿水文地质特征分析及防治水方案探究[J].山东国土资源,2021,37(10). |
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| 作者姓名： | 杨小三 张宪峰 张志远 陈文霞 熊玉强 |
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| 作者单位： | 中化地质矿山总局山东地质勘查院;山东省地质矿产勘查开发局八〇一水文地质工程地质大队;蒙阴县自然资源和规划局 |
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| 摘 要： | 淡水下渗是钾盐开采中的难题,本文通过分析老挝东泰钾盐矿区含水层、隔水层特征,各层之间的水力联系,认为主要充水水源为第四系淡水和上泥岩裂隙水,充水通道为泥岩裂隙。提出开采前超前探水,提前掌握矿井水文特征;井巷工程周围帷幕预注浆堵水,堵塞充水通道;开挖截水沟截水,截流上部淡水;井壁后注浆形成水泥闭环封水,封闭出水点;建立完善的排水系统,将矿井涌水导出等防治水措施,保障矿井的生产安全。
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| 关 键 词： | 钾盐矿 水文地质特征 水力联系 充水通道 矿井防治水 预注浆 |
Analysis on Hydrogeological Characteristics and Water Control Plan of Dongtai Potash Deposit in Laos |
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| YANG Xiaosan,ZHANG Xianfeng,ZHANG Zhiyuan,CHEN Wenxi,XIONG Yuqiang.Analysis on Hydrogeological Characteristics and Water Control Plan of Dongtai Potash Deposit in Laos[J].Land and Resources in SHANDONG Province,2021,37(10). |
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| Authors: | YANG Xiaosan ZHANG Xianfeng ZHANG Zhiyuan CHEN Wenxi XIONG Yuqiang |
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| Abstract: | Fresh water infiltration has always been a difficult problem for potash mining. By analyzing the characteristics of waterbearing and waterretaining layers and hydraulic relations between the layers in Dongtai potash mining area in Laos, it is concluded that main water source of the mine is Quaternary fresh water and upper mudstone fissure water, and the waterfilling channel is mudstone fissure water. In this paper, water prevention and control measures are put forward as follows: water should be explored in advance before mining in order to master hydrological characteristics. Curtain pre grouting is used to block water around the shaft and roadway works to block the water filling channel. Intercepting ditch should be excavated to cut off fresh water in the upper part. The cement closed loop is formed by grouting behind the shaft wall to seal the water and close the outlet point. A perfect drainage system should be set up to drain water out of the mine. Thus, the safety of mine production can be ensured. |
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| Keywords: | Potash deposit hydrogeological characteristics hydraulic connection waterfilled channel water prevention and control of mine pregrouting |
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