断裂构造发育区矿坑涌水量预测的数值模拟研究

Study on Numerical Simulation for Forecast of Water Yield of Mine in Development Zones of Fault Structures

断裂构造往往是矿区的富水带和导水通道,在断裂构造发育区进行矿坑涌水量预测时,对断裂带的认识和研究程度会对涌水量预测的精度产生直接影响。该文以马城铁矿为研究对象,重点对工作区内构造断裂带的发育情况进行分析研究,通过建立三维地下水流数值模拟模型,采用抽水试验动态资料对模型进行识别,准确地预测了矿坑涌水量,为矿山开采提供了依据。

Fault structure is always the water enriched zone and conductor in mining area, the under- standing and research degree in the fault zone have direct influences on the forecast accuracy when pre- dicting the water yield of mine in development zones of fault structures. Taking Macheng mining area as research object, we mainly analyze and study the developmental condition of faults structure in working area, establish three-dimensional numerical simulation model of groundwater flow, and identify the model with the dynamic date of pumping test, then predict the water yield of mine and it provides basis for mining excavation.