| 刘永俊,朱爽,杨鑫鑫,魏恋欢,张鑫.基于加权信息量模型的庄河市地质灾害易发性评价[J].矿产勘查,2025,16(S1):283-288 |
| 基于加权信息量模型的庄河市地质灾害易发性评价 |
| Assessment of geological hazards susceptibility based on weighted information method model in Zhuanghe City |
| 投稿时间：2024-12-24 |
| DOI：10.20008/j.kckc.2025S1035 |
| 中文关键词: GIS 加权信息量 地质灾害 易发性评价 庄河市 |
| 英文关键词: GIS weighted information method geological hazards susceptibility assessment Zhuanghe City |
| 基金项目:本文受辽宁省自然资源厅项目(JH21-210000-87489)和大连市自然资源局项目(DLDGZB-2020-026.2)联合资助。 |
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| 中文摘要: |
| 庄河市是辽宁省受地质灾害威胁最为严重的县市之一，为客观科学地评价庄河市地质灾害易发性，本文在总结多年的地质环境条件与地质灾害调查成果的基础上，根据地质地貌、地层岩性、断裂构造、地形坡度、地势起伏度、地表水系、岩石坚硬程度和岩体完整程度等 8个评价因子，基于 GIS技术，将层次分析法与信息量模型相耦合，建立了庄河市地质灾害易发性评价体系，将研究区易发性分区划分为 4个等级:高易发区、中易发区、低易发区和非易发区。研究结果表明，庄河市地质灾害高易发区面积占比 14. 76 %，集中分布于侵蚀构造中低山、断裂构造发育带、松散软弱岩土层、破碎和极破碎岩层、坡度大于 30°等地带；地质灾害中易发区面积占比 26. 18 %，集中分布于高丘陵、较软弱和较破碎岩层等地带；地质灾害低易发区面积占比 15.41 %，集中分布于低丘陵、较坚硬和较完整岩层等地带；地质灾害非易发区面积占比 |
| 英文摘要: |
| Zhuanghe City is severely threatened by geological hazards in Liaoning Province，In order to objectively and scientifically evaluate the geological hazard susceptibility of Zhuanghe City，this paper summarizesthe investigation results of the geological environment conditions and geologica hazards . According to the eight fac. tors of topography，stratum lithology，fracture，slope，degree of fluctuation，water system，hardness and integrity of rock，based on GIS technology，combining AHP and information method，this paper establishes the geological hazard susceptibility evaluation system of Zhuanghe Ctiy，and divides the study area into four susceptibility areas: high，medium，low and non. The research results show that the high incidence area proportion 14. 76%，which is mainly distributed in erosion medium and low mountain，fault zone with developed structure，loose and weak rock stratum，broken rock stratum，area with slope greater than 30°. The medium incidence area proportion 26. 18%， mainly distributed in high hilly areas，weak and broken rock stratum. The low incidence area proportion 15. 41%， mainly distributed in low hilly areas，relatively hard and complete rock stratum. The non incidence area proportion 43. 66%，mainly distributed in the no fault zone，plain，valley and reservoir. |
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