| 底板注浆效果及突水危险性评价法在赵固二矿的应用 |
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| 引用本文： | 慕松利,李鹏飞,耿浩博,韩久方.底板注浆效果及突水危险性评价法在赵固二矿的应用[J].煤炭工程,2020,52(4):67-72. |
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| 作者姓名： | 慕松利 李鹏飞 耿浩博 韩久方 |
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| 作者单位： | 1. 焦作煤业（集团）有限责任公司;2. 中国矿业大学（北京）; |
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| 摘 要： | 针对赵固二矿14030工作面底板突水危险性及注浆加固效果评价问题,采用"27381注浆改造评价体系"进行了评价。结果表明:工作面注浆前底板L2含水层及其导升带含水性中等,距离工作面底板较远,突水危险性较低,L8含水层含水性强,距离工作面底板近,突水危险性中等,二者之间无密切的水力联系;严重危险区多受到断层影响,Ⅰ、Ⅱ、Ⅴ严重危险区含水类型为J型,突水危险性低;Ⅲ、Ⅳ、Ⅵ严重危险区含水性为U型,突水危险性中等。工作面注浆后,严重危险区"三参量"评价结果为均为"好";工作面注浆过程经历了初始升高-注浆平稳-相互影响-终压稳固四个阶段,正常带单位面积注浆量为0.012t/m^3,断层带为0.220t/m^3,注浆系数为18.3,工作面注浆效果综合评价为"好",突水危险性评价为"较低"。
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| 关 键 词： | 底板注浆效果 含水性 突水危险性 注浆评价体系 三参量 |
| 收稿时间： | 2019-05-07 |
| 修稿时间： | 2019-12-03 |
Application of Floor Grouting Effect and Water Inrush Risk Assessment Method in Zhaogu No.2 Mine |
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| Affiliation: | (Jiaozuo Coal Industrial(Group)Co.,Ltd.,Jiaozuo 454002,China;School of Energy and Mining Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China) |
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| Abstract: | Aiming at the evaluation of grouting reinforcement effect and water inrush danger after grouting on floor in 14030 working face, the "27381 Grouting and Water Control System" was used to evaluate it. Results showed that the L2 aquifer and its guiding zone has less dangerous to water inrush risk because they are farther from the working face and its water-rich medium. The L8 aquifer has medium dangerous to water inrush risk because it is close to the working face and its water-rich strong. There is no unimpeded hydraulic connection between L2 and L8. Severely dangerous zones are affected by faults. The types of water-rich in the severe danger zones of I, II and V are J-type, the risk of water inrush is low; and severe danger zones of the III, IV and VI are U-type, the risk of water inrush is medium. The results of the three-parameter evaluation of the grouting effect in the severely dangerous zones are good. The grouting process of the working face has experienced the initial increase—smooth grouting—interacting—the final stage of the final pressure stabilization. The normal zone grouting amount is 0.012t/m3, the fault zone is 0.220t/m3, and the grouting coefficient is 18.3. The working face grouting effect comprehensive evaluation is good, and the water inrush is lower. |
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| Keywords: | floor grouting effect water yield property water bursting risk grouting evaluation system three parameters |
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