電阻率膏體充填效果評價方法在新陽煤礦的應(yīng)用研究
發(fā)布時間：2018-11-19 10:57
【摘要】：以充填體的電阻率特性為基礎(chǔ),提出了電阻率膏體充填效果評價方法。以新陽煤礦膏體充填開采為具體的工程背景,計算受頂板垂直應(yīng)力作用下充填體在1,3和7 d的電阻率分別為6.73,27.74和55.15Ω·m,并建立了電阻率的正演模型,通過反演計算視電阻率剖面圖,分析視電阻率曲線形態(tài)及數(shù)值變化特征,在充填開采過程中利用電阻率充填效果評價方法對充填效果進行評價。視電阻率剖面圖結(jié)果表明:充填體早期表現(xiàn)為強烈的低阻響應(yīng)異常特征,隨著充填開采的進行,響應(yīng)逐漸減弱,對應(yīng)充填范圍內(nèi)的視電阻率曲線形態(tài)呈上升趨勢,數(shù)值升高;現(xiàn)場實際評價得到的視電阻率剖面圖與井下充填的實際效果相對應(yīng),并與正反演數(shù)值模擬反映的視電阻率剖面圖的結(jié)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.
【作者單位】： 太原理工大學(xué)采煤工藝研究所;山西省綠色礦山工程技術(shù)研究中心;太原理工大學(xué)礦業(yè)工程學(xué)院;
【基金】：國家自然科學(xué)基金優(yōu)秀青年科學(xué)基金項目(51422404);國家自然科學(xué)基金項目(51574172) 山西省煤基重點科技攻關(guān)項目(MQ2014-12) 山西省高等學(xué)校中青年拔尖創(chuàng)新人才項目 山西省應(yīng)用基礎(chǔ)研究項目(201601D021089)
【分類號】：TD823.7
本文編號：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.
【作者單位】： 太原理工大學(xué)采煤工藝研究所;山西省綠色礦山工程技術(shù)研究中心;太原理工大學(xué)礦業(yè)工程學(xué)院;
【基金】：國家自然科學(xué)基金優(yōu)秀青年科學(xué)基金項目(51422404);國家自然科學(xué)基金項目(51574172) 山西省煤基重點科技攻關(guān)項目(MQ2014-12) 山西省高等學(xué)校中青年拔尖創(chuàng)新人才項目 山西省應(yīng)用基礎(chǔ)研究項目(201601D021089)
【分類號】：TD823.7
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