【作者】 王建国；

【导师】 杨德明；

【作者基本信息】 吉林大学 ， 第四纪地质学， 2009， 硕士

【摘要】 论文以抚顺市区暨抚顺县地质灾害调查与区划工作中野外调查及分析得出的地质灾害数据资料,概要总结抚顺市区暨抚顺县地质灾害类型、规模、发育特征及分布状况;根据抚顺市区暨抚顺县的灾害现状,对区域地质构造、地形地貌、地层岩性、岩土体特征、人类活动、灾害侵扰等形成地质灾害的孕灾环境、致灾因子及承灾体进行系统研究,建立多源空间数据库。对地质灾害影响因素进行预处理,掌握地质灾害发生、发展影响因素及其内在规律,得出主要影响因素权重向量。以MAPGIS为技术平台,运用等值区分析、缓冲区分析、空间叠加分析、网络分析等技术方法,对各致灾因子进行量化,建立地质灾害影响因素空间影响分值区;根据滑坡、崩塌、泥石流、地面塌陷与地裂缝地质灾害灾点等级建立单灾种地质灾害等值区;采用灰色关联度分析法确定各单灾种地质灾害对研究区域整体地质灾害的影响程度;采用层次分析法确定致灾因素影响程度;对致灾因素及灾点等值结果进行空间叠加,建立地质灾害多源DTM数据模型并通过空间叠加划分评价单元后,采用多因素加和法确定单灾种地质灾害易发程度区划和地质灾害综合易发程度区划;对研究区域地质灾害进行模糊综合评判,确定行政区域为评价单元的地质灾害综合区划;利用聚类分析数学方法确定研究区域地质灾害行政区域聚类综合区划。更多还原

【Abstract】 Fushun urban district and Fushun County is located in junction of liao river rift basin and the uplift-zone of liaodong.The geological disasters often occur in the influence of topographical ground feature, geologic structure, stratum rock gender and humanity engineering activities in recent years, geological disasters have strongly threatened human beings’lives,wealth, property security and have been the hinder the sustainable development of regional society and economy.The article combines work of geological disaster survey item“The survy and Zoning of geological disaster in the Fushun urban district and Fushun County of Liaoning province”issued by the Minstry of Land and Resource P.R.C,use the disaster and territorial geological environment data investigated on the spot, the type of geological disasters, the scale, characteristics of development and distribution. According to the disaster status of Fushun urban district and Fushun County, study with comprehensively pregnant disaster environment, disaster-causing factors and body for disaster, constitute by the regional geological structure, topography, lithology, rock and soil characteristics, human activities, disaster intrusive and so on.Based on different types of geological disasters, disaster preparedness mechanism of different bodies, disaster-causing factors and geological disasters points in the spatial distribution, set up multi-source spatial database. Combination with pre-treatment of impact of geological disasters, study of spatial distribution law of geological disasters in the occurrence and development. Application of GIS technology, such as equivalent area analysis, buffer analysis, spatial overlay analysis, network analysis and other methods. According to quantitative results of the disaster impact of the spatial distribution, set up score zone of influencing factors of geological disasters. According to severity of disasters of landslides, mud-rock flows, ground subsidence, ground fissures ,set up equivalent zone of every disaster. Based on gray correlation analysis method, determine the impact of kinds of geological disasters in the overall study area. Use the way of AHP to determine the degree of disaster factors. Set up the source of many geological disasters DTM Data Model after space Superposition of Disaster-causing factors and the results of disaster point equivalent, and divide the evaluation unit by Superposition space. Determine kinds of geological disasters’disaster-prone districts and general geological disasters. Use fuzzy mathematics to evaluate geological disasters, and determine the general regional of geological disasters. Use the of mathematical methods of cluster analysis to determine clustering general region of geological disasters, In the last, according to the characteristics of zoning district, general analysis of the characteristics of geological disasters, and the internal occurrence mechanism, reveal the spatial distribution of geological disasters.更多还原