煤矿采区排水系统优化研究

Optimization on the drainage system of mining area in Jinjie coal mine

通过总结历史疏放水数据及开采涌水量变化规律,将疏放水钻孔施工期间单个钻孔涌水量的衰减情况纳入管路设计参数。根据工作面实际涌水量与排水能力之间、工作面疏放水量与初始水量合计之间的物理关系,来确定工作面最大涌水量;"动静法"与比拟法相结合确定工作面污水涌水量。根据新的涌水量优化排水管径和水仓设置数量,确保工作面排水系统经济、安全、高效。

By summarizing the history water drainage data and the change rules of water inflow,the attenuation condition of water inflow from single borehole during the construction of drainage borehole was brought into pipeline design. Based on the physical relationships between the actual water inflow with drainage capacity and the water discharge volume with initial water volume,the maximum water inflow in mining face was determined. Using the static and dynamic method and analogy method,the rational water inflow was determined. According to the determined water inflow in mining face,the drainage pipe and sump layout was optimized and the economy and efficiency of drainage system was ensured.