CAJ | 학술논문

浙江海洋经济示范区具有非常重要的经济地位，崩塌、滑坡、泥石流等突发性地质灾害严重威胁该区域的社会经济发展。该文通过地质灾害点对坡度、坡向、地质、岩性、降雨、植被、断层、道路、水系等因素的敏感性计算，获得评价格网的各指标的综合面积指数，采用主成分分析法计算评价格网各要素的综合分值，表征格网地质灾害脆弱性，对示范区地质灾害脆弱性进行分级，结合典型区域的地质灾害易发区规划作为样本，对脆弱性等级划分标准进行调整得到区域地质灾害易发程度分区，为区域地质灾害防御及工程建设活动提供参考依据。
절강해양경제시범구구유비상중요적경제지위，붕탑、활파、니석류등돌발성지질재해엄중위협해구역적사회경제발전。해문통과지질재해점대파도、파향、지질、암성、강우、식피、단층、도로、수계등인소적민감성계산，획득평개격망적각지표적종합면적지수，채용주성분분석법계산평개격망각요소적종합분치，표정격망지질재해취약성，대시범구지질재해취약성진행분급，결합전형구역적지질재해역발구규화작위양본，대취약성등급화분표준진행조정득도구역지질재해역발정도분구，위구역지질재해방어급공정건설활동제공삼고의거。
The Marine Economy Demonstration Area of Zhejiang Qrovince is very important on economic sta-tus.Geological hazards of collapse,landslide,debris flow and so on are factors which threaten the social economic development.In this paper,we calculate the sensitive coefficient based on historical hazard and slope,aspect,ge-ological,lithology,rainfall zoning and vegetative cover etc.To obtain comprehensive area index of each evaluation grid,the principal component analysis method is used to gain the comprehensive score of grid which indicate the vulnerability of the certain grid.Finally,we use the method on the typical regional geological disaster areas as an example and divide four grades according to the score results.The results are benefit to the regional geological dis-aster prevention and engineering activities.