【摘要】 煤层自燃后产生"热剩磁",基于这一理论,运用地面高精度磁测在灵武某煤田对煤田自燃区的边界范围进行圈定。由钻孔验证的结果来看,地面高精度磁测在圈定煤田自燃区边界范围时效果良好。更多还原

【Abstract】 <Abstrcat> Coal layer can be magnetized after its spontaneous combustion. Based on this theory, the boundary of coal layer spontaneous combustion area in a coalfield in northwest China is determined by high-precision magnetic measurement. Drilling data show that high-precision magnetic measurement is an effective means to determine the boundary of spontaneous combustion area of coalfield.更多还原