【作者】 程霞；

【导师】 杨梅忠；

【作者基本信息】 西安科技大学 ， 地质工程， 2009， 硕士

【摘要】 澄合矿区煤炭资源的大量开采,形成大面积采空区,导致大面积地面塌陷、地面沉降、地裂缝以及由此导致的滑坡、崩塌、地表植被破坏等多种形式的灾害,造成重大人员伤亡和设备事故,已成为矿山主要灾害,引起了政府、企业的高度重视。本文针对澄合矿区地下开采过程中形成的大量采空区危险性进行了系统、深入研究。通过对采空区上覆岩层破坏机理及破坏类型的研究,根据现场技术部门提供的资料以及采空区大量现场调查,分析澄合矿区采煤塌陷的基本规律和特殊性,从地质、水文、环境以及采矿四个主要影响因素,分析得出影响采空区塌陷危险性的主要因子,运用模糊综合评价理论,建立了采空区塌陷危险性多因子评价模型。提出了采空区危险性指标,采用层次分析法确定评价指标因素的权重,并用四值逻辑分区法确定隶属函数和评分标准。从而实现了澄合矿区采空区塌陷危险性的定量分析,将统计得出的27个采空区划分为危险性极高、危险性较高、危险性一般、危险性较低四个等级,并提出相应的防治对策。更多还原

【Abstract】 A large number of mining exploitation of coal resources in Cheng-He mining area forms a large area of goaf. The goaf cause large-scale ground collapse, ground subsidence, ground fissures,as well as induced disaster such as landslide, collapse,surface vegetation demolish etc.Above all have been the major disaster in underground mine,which have resulted in momentous personnel casualty and equipment accident and aroused government and enterprise’s intense recognition.This article did a systematic in-depth research about the risk of Cheng-He mining area’s goaf.By the study of the overlying strata’breakage mechanism and type, according to the information which provide by the technology departments, the article analyses Cheng-He mining area’s basic law and specificity which caused by mining subsidence.Main factors of goaf ground collapse risk were obtained by analyzing four affecting matters containing geology, hydrology, environment and mining. With these factors the article which uses Comprehensive fuzzy evaluation theory has established the risk of collapse of goaf of multi-factor evaluation model.We proposed hazard degree index,adopted the analytic hierarchy process to ascertain the weight of assessing index factor,and four-valued logic zoning method to ascertain subordination function and grade standard.Thereby quantitative analysis of underground goaf disaster hazard degree in Cheng-He mining area was realized,then 27 statistical goaf were compartmentalized to be extremely high degree,high hazard degree,common hazard degree and low hazard degree,and the corresponding control measures were proposed.更多还原