【摘要】：為合理評(píng)價(jià)濱湖煤礦161西采區(qū)16煤底板奧灰突水危險(xiǎn)性,在分析采區(qū)地質(zhì)及水文地質(zhì)特征的基礎(chǔ)上,利用突水指數(shù)法,選取奧灰含水層的水壓、斷層密度、斷層交點(diǎn)和端點(diǎn)的分布、斷層規(guī)模指數(shù)、底板有效隔水層厚度5個(gè)因素作為煤層底板突水預(yù)測(cè)的主控因素,并制作專題圖和均一化圖,建立了突水指數(shù)評(píng)價(jià)模型,并進(jìn)行了危險(xiǎn)程度分級(jí)分區(qū)預(yù)測(cè)。研究結(jié)果表明:按照突水指數(shù)n0.56、0.56≥n0.43、0.43≥n0.35、0.35≥n0.23、n≤0.23,將煤層底板奧灰突水危險(xiǎn)等級(jí)分別劃分為極危險(xiǎn)區(qū)、危險(xiǎn)區(qū)、較危險(xiǎn)區(qū)、較安全區(qū)和安全區(qū),評(píng)價(jià)結(jié)果與突水指數(shù)法結(jié)果相比預(yù)測(cè)結(jié)果更加詳細(xì)準(zhǔn)確,也與實(shí)際較為吻合,有助于指導(dǎo)濱湖煤礦161西采區(qū)防治水工作。
[Abstract]:In order to reasonably evaluate the risk of Ordovician ash water inrush from 16 coal floor in west mining area 161 of Binhu Coal Mine, based on the analysis of geological and hydrogeological characteristics of mining area, the water pressure and fault density of Ordovician ash aquifer are selected by using water inrush index method. The distribution of fault intersections and endpoints, the index of fault scale and the thickness of effective water barrier layer are the main controlling factors for water inrush prediction of coal seam floor, and the thematic map and homogenization map are made, and the evaluation model of water inrush index is established. The risk degree was predicted by classification and zoning. The results show that according to the water inrush index n0.56n0.56 鈮，

本文編號(hào)：2265896