【摘要】 随着煤矿开采深度的增加,采空区积水成为影响煤炭安全生产的重大隐患,其积水区边界的划定是有效防治采空区突水的关键。在建立采空区积水区边界模型基础上,运用网络并行电法探测技术对7130工作面采空区放水前及放水过程进行连续动态监测,获取含水异常体与渗流场、地电场之间的响应特征,以此建立积水区边界与视电阻率之间变化关系,可圈定矿井采空区积水范围。结果表明:有效富水系数为0.1226的积水区边界与网络并行电法探测技术测量得到的电阻率参数所划定的积水区边界具有很好的一致性,且可在动态监测中形成不同时段的电阻率剖面。更多还原

【Abstract】 With the mining depth increased in the mine,the water ponding in the mining goaf would be major hidden danger affected to the mine coal safety production and the delineation of the water ponding boundary would be the key to effectively prevent and control the water inrush from the goaf.Based on establishment on the boundary model of water ponding,the network parallel electric method was applied to the continued dynamic monitoring and measuring the goaf in mining face No7130 before the water drainage and during the water drainage process.Response features of water bearing anomalous body between the seepage field and the geoelectric field were obtained and were applied to establish the variation relationship between the water ponding boundary and the resistivity in order to delineate and analyze the water ponding scope in the goaf of the mine.The results showed that the water ponding boundary with an effective watery coefficient of 0.122 6 and the water ponding boundary delineated with resistivity parameters measured by the network parallel electric method would have a good consistency and would format the resistivity section at different stage during the dynamic monitoring and measuring.更多还原