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Water Abundance Forecast and Water Disaster Danger Evaluation Study of Sandstone Aquifers

Author: LiXinFeng
Tutor: WeiJiuChuan；GuoJianBin
School: Shandong University of Science and Technology
Course: Geological Engineering
Keywords: Sandstone Aquifer Rich water forecast Lithologic structure index Comprehensive analysis of multi-factor Water damage risk zoning
CLC: TD745
Type: Master's thesis
Year: 2010
Downloads: 187
Quote: 0
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Abstract


Roof and floor sandstone aquifer is often the direct coal seam water-filled aquifer , the impact on mine production . This article in Jiyang coal mining area geological, hydrogeological conditions and on the basis of past water inrush information , the mining area of ??the main coal seam coal and coal top , bottom sandstone aquifer rich in water and water harm risk prediction and evaluation . Empirical formula method , on-site detection method and numerical simulation , the roof and floor failure depth study of the main coal layer top , the floor failure with developmental depth understanding ; rich water through the sandstone aquifer impact factors analysis to determine the granularity of the sandstone thickness , roof and floor structure and tectonic development status as a sandstone aquifer water rich evaluation factors ; by draw deposition sectional view , of sandstone thickness variation , distribution and mudstone combination analyze the features ; constructed lithologic structure index quantitative description of the roof and the floor of the lithological and structural features , the complexity of the use of similar dimension describes the mining area structure ; roof and floor lithology and structural characteristics and mining area geological construct fractal characteristics on the basis of univariate analysis , the use of multi-factor analysis , the lithologic structure index and construction of the standardization of the fractal dimension , the sandstone aquifer rich water partition the study area, roof and floor sandstone is divided into the rich water , rich in water medium and rich water weak three levels ; using transient electromagnetic detection of waterborne sandstone , the results showed that : rich in water and strong areas are mainly located near the tectonic belt ; considering the lithological structure index , Geophysical results and multi-factor comprehensive analysis method to get the results , the top of the coal seam , the bottom plate sandstone aqueous layer was water damage risk partition divided the danger zone than the danger area and security area ; explore the mining area of ??water damage prevention and treatment of technical means and measures .

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CLC: > Industrial Technology > Mining Engineering > Mine safety and labor protection > Mine drainage and water shutoff > Prevention and treatment of mine flood
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