【摘要】：在地下采掘活動(dòng)的影響下,導(dǎo)水?dāng)嗔褞茨茇灤┖畬訒r(shí),大井法計(jì)算的涌水量誤差較大。針對(duì)這種情況,對(duì)復(fù)雜地質(zhì)條件合理概化,建立導(dǎo)水?dāng)嗔褞茨茇灤┖畬拥乃牡刭|(zhì)概化模型,對(duì)大井法進(jìn)行改進(jìn),將含水層概化為垂直方向上互不影響的兩元結(jié)構(gòu),提出倒置非完整大井法,可以分別計(jì)算頂部和側(cè)向的水量,使其更貼近實(shí)際情況;并結(jié)合相關(guān)理論進(jìn)行推導(dǎo),得出相應(yīng)的數(shù)學(xué)模型。結(jié)合彬長(zhǎng)礦區(qū)亭南礦和胡家河礦2個(gè)工作面的現(xiàn)場(chǎng)實(shí)測(cè)地質(zhì)資料,應(yīng)用該方法計(jì)算涌水量,并與實(shí)際涌水量進(jìn)行對(duì)比,結(jié)果較為準(zhǔn)確,驗(yàn)證了頂板巨厚基巖含水層采動(dòng)影響下,倒置非完整大井法計(jì)算涌水量的合理性。
[Abstract]:Under the influence of underground mining activities, when the water-conducting fault zone fails to penetrate the aquifer, the error of water inflow calculated by the large well method is large. In view of this situation, the complex geological conditions are reasonably generalized, the hydrogeological generalization model of the water-conducting fault zone which fails to penetrate the aquifer is established, the large-well method is improved, and the aquifer is reduced to a two-element structure which does not affect each other in the vertical direction. The inverted nonholonomic large well method can be used to calculate the water quantity at the top and the side respectively so as to make it more close to the actual situation and the corresponding mathematical model is derived by combining the relevant theory. Combined with the field measured geological data of the two working faces in Jinan Mine and Hujiahe Mine, this method is used to calculate the water inflow and to compare it with the actual water inflow. The results are more accurate, and verify the influence of mining on the roof thick bedrock aquifer. It is reasonable to calculate the inflow of water by inverted incomplete large well method.
【作者單位】： 中煤科工集團(tuán)西安研究院有限公司;陜西省煤礦水害防治技術(shù)重點(diǎn)實(shí)驗(yàn)室;
【基金】：中煤科工集團(tuán)西安研究院技術(shù)創(chuàng)新面上資助項(xiàng)目(2014MS011)
【分類號(hào)】：TD742.1

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