河南北部平原地裂缝易发性分区评价及防治措施研究

Study on the evaluation of ground fissure susceptibility and prevention measures in the northern plain of Henan Province

本研究旨在评估特定研究区域内地裂缝灾害的易发性,以识别高风险区域,从而有效地应对地裂缝对人民群众生活、生命财产安全及地方经济社会发展的危害。基于Arc GIS的空间分析技术,结合层次分析法(AHP)构建了一套全面的地裂缝易发性评价指标体系。通过该体系,利用综合评价模型进行数据的叠加分析与预测,科学划分地裂缝灾害的易发区域。研究区内共发育48条地裂缝,依据易发性评价结果,将该区细分为4个等级:高易发区(3046.58 km2,占比14.77%)、中易发区(4451.37 km^(2),占比21.58%)、低易发区(8215.10 km^(2),占比39.82%)和非易发区(4913.25 km~2,占比23.82%)。这一分区结果详细揭示了地裂缝灾害在不同区域的潜在威胁程度,基于上述研究结果,提出了针对地裂缝灾害的合理化防治建议,旨在为未来地裂缝灾害的预警、防灾减灾工作提供科学依据和参考,以减轻其对当地社会经济和居民生活的负面影响。

This study aims to assess the susceptibility to ground fissure hazards within a specific research area,in order to identify high-risk zones and effectively address the threats posed by ground fissures to the safety of people’s lives,property,and local socio-economic development.Using spatial analysis techniques based on ArcGIS,a comprehensive evaluation index system for ground fissure susceptibility was established in combination with the Analytic Hierarchy Process(AHP).Through this system,data overlay analysis and prediction were conducted using a comprehensive evaluation model to scientifically delineate ground fissure hazard susceptibility zones.A total of 48 ground fissures were identified in the study area,and based on the susceptibility evaluation results,the area was classified into four levels:high susceptibility zone(3046.58 km^(2),accounting for 14.77%),medium susceptibility zone(4451.37 km^(2),accounting for 21.58%),low susceptibility zone(8215.10 km^(2),accounting for 39.82%),and non-susceptibility zone(4913.25 km^(2),accounting for 23.82%).This classification reveals the potential threat levels of ground fissure hazards across different regions.Based on these findings,rational prevention and control recommendations for ground fissure hazards are proposed,providing a scientific basis and reference for future early warning,disaster prevention,and mitigation efforts,with the goal of reducing the negative impact on local socio-economic conditions and residents’lives.