电阻率膏体充填效果评价方法在新阳煤矿的应用研究
发布时间：2018-11-19 10:57
【摘要】：以充填体的电阻率特性为基础,提出了电阻率膏体充填效果评价方法。以新阳煤矿膏体充填开采为具体的工程背景,计算受顶板垂直应力作用下充填体在1,3和7 d的电阻率分别为6.73,27.74和55.15Ω·m,并建立了电阻率的正演模型,通过反演计算视电阻率剖面图,分析视电阻率曲线形态及数值变化特征,在充填开采过程中利用电阻率充填效果评价方法对充填效果进行评价。视电阻率剖面图结果表明:充填体早期表现为强烈的低阻响应异常特征,随着充填开采的进行,响应逐渐减弱,对应充填范围内的视电阻率曲线形态呈上升趋势,数值升高;现场实际评价得到的视电阻率剖面图与井下充填的实际效果相对应,并与正反演数值模拟反映的视电阻率剖面图的结果一致。
[Abstract]:Based on the resistivity characteristics of the filling body, a method for evaluating the filling effect of the resistivity paste is proposed. Under the concrete engineering background of paste filling mining in Xinyang coal mine, the resistivity of filling body under vertical stress of roof is calculated to be 6.73n 27.74 and 55.15 惟 m in 1d and 7d respectively, and the forward model of resistivity is established. The shape and numerical variation characteristics of apparent resistivity curve were analyzed by inverse calculation of apparent resistivity profile. The filling effect evaluation method was used to evaluate the filling effect in the course of filling mining. The results of apparent resistivity profile show that the early filling body shows strong characteristics of low resistivity response anomaly. With the development of filling mining, the response gradually weakens, corresponding to the apparent resistivity curve shape in the filling range shows an upward trend, and the numerical value increases; The apparent resistivity profile obtained by field practical evaluation corresponds to the actual effect of downhole filling and is consistent with that of apparent resistivity profile reflected by forward and inverse numerical simulation.
【作者单位】： 太原理工大学采煤工艺研究所;山西省绿色矿山工程技术研究中心;太原理工大学矿业工程学院;
【基金】：国家自然科学基金优秀青年科学基金项目(51422404);国家自然科学基金项目(51574172) 山西省煤基重点科技攻关项目(MQ2014-12) 山西省高等学校中青年拔尖创新人才项目 山西省应用基础研究项目(201601D021089)
【分类号】：TD823.7
本文编号：2342091
[Abstract]:Based on the resistivity characteristics of the filling body, a method for evaluating the filling effect of the resistivity paste is proposed. Under the concrete engineering background of paste filling mining in Xinyang coal mine, the resistivity of filling body under vertical stress of roof is calculated to be 6.73n 27.74 and 55.15 惟 m in 1d and 7d respectively, and the forward model of resistivity is established. The shape and numerical variation characteristics of apparent resistivity curve were analyzed by inverse calculation of apparent resistivity profile. The filling effect evaluation method was used to evaluate the filling effect in the course of filling mining. The results of apparent resistivity profile show that the early filling body shows strong characteristics of low resistivity response anomaly. With the development of filling mining, the response gradually weakens, corresponding to the apparent resistivity curve shape in the filling range shows an upward trend, and the numerical value increases; The apparent resistivity profile obtained by field practical evaluation corresponds to the actual effect of downhole filling and is consistent with that of apparent resistivity profile reflected by forward and inverse numerical simulation.
【作者单位】： 太原理工大学采煤工艺研究所;山西省绿色矿山工程技术研究中心;太原理工大学矿业工程学院;
【基金】：国家自然科学基金优秀青年科学基金项目(51422404);国家自然科学基金项目(51574172) 山西省煤基重点科技攻关项目(MQ2014-12) 山西省高等学校中青年拔尖创新人才项目 山西省应用基础研究项目(201601D021089)
【分类号】：TD823.7
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