煤矿井下防水工程施工与监理

协庄煤矿通过构筑井下防水工程,建立了井下至地表的完整的防水体系,有效地防止了地表水渗透或溃入,确保了安全生产。

井下防水闸门硐室设计及施工

井下防水闸门是为预防井下突然涌水而设置的一种带门的矿山防水设施,对矿井的安全生产起到重要的作用。本文介绍了设置井下防水闸门的必要性,重点分析了井下防水闸门硐室的设计方法及施工工艺,对煤矿企业设计施工防水闸门硐室具有一定的借鉴意义。

浅谈煤矿井下泵房防水门的要求

详细介绍了平板型、圆弧拱型、膜型扁壳型3种主要结构的防水门,并分析了它们在使用时的优缺点,同时介绍了防水门的门铰和拉紧装置及其使用时的注意事项,最后从安全生产的角度详细说明了井下泵房防水门的具体要求。防水门对于煤矿井下防水排水工作和安全生产有着重要的作用。

煤矿防治水措施研究

本文简洁的介绍了煤矿防治水方面一些方法和措施,结合当前新版规定从两个方面阐述煤矿防治水的基本原理和方法。

Factors Influencing the Iterative Accuracy of Ground Water Level in Forecasting the Water Burst of Deep Drawdown Mines

The purpose of this paper is to discuss the influential factors of iteration accuracy when we use iteration to determine the numerical model for predicting water yield of deep drawdown mines and calculating the groundwater level. The relationship among the calculation error of groundwater level, the pumping rate, the limit of iteration convergence error, the calculation time, and the aquifer parameters were discussed by using an ideal model. Finally, the water yield of Dianzi iron mine was predicted using the testified numerical model. It is indicated that the calculation error of groundwater level is related to the limit of iteration convergence error, the calculation time and the aquifer parameters, but not to the pumping rate and the variation of groundwater level.