摘要
福建沿海丘陵地带广泛发育侵入岩,坡面普遍分布大量滚石及由其堆积形成的岩堆,成为地区性典型的一种不良地质现象。针对厦门某拟建健康步道工程面临的斜坡滚石岩堆稳定性评价问题,研究采用多学科方法体系综合评价:通过工程地质测绘、探槽揭露和地球物理勘探,系统查明斜坡区地形特征、地质结构及滚石空间分布特征;运用层次分析法构建综合评价模型,结合规范法进行滚石稳定性分析;基于运动学模拟预测滚石运动轨迹及影响范围,最终提出分级防控建议。研究成果形成“勘察-评价-模拟-防治”技术路径,为同类工程提供了三方面参考价值:①多源数据融合的滚石识别技术;②考虑空间异质性的风险分级体系;③工程防治与生态保护协同的处置策略。
The coastal hilly areas of Fujian Province exhibit extensive development of intrusive rocks,with slopes commonly covered by abundant rockfalls and talus deposits formed from accumulated debris.These constitute a regionally typical adverse geological phenomenon.Addressing the stability evaluation of rockfalls and talus deposits on slopes for a proposed health trail project in Xiamen,this study employs a multidisciplinary methodology for comprehensive assessment.Through engineering geological mapping,trench exposure,and geophysical exploration,the topographic features,geological structure,and spatial distribution characteristics of rockfalls in the slope area are systematically investigated.The analytic hierarchy process(AHP)is used to construct a comprehensive evaluation model.And the stability of rockfalls is analyzed in combination with the specification method.Based on kinematic simulation,the movement trajectories and influence ranges of rockfalls are predicted,and finally,graded prevention and control suggestions are proposed.The research results form a‘survey-evaluation-simulation-mitigation’technical path,providing three types of reference values for similar projects:①rockfall identification technology based on multi-source data fusion;②risk classification system considering spatial heterogeneity;③disposal strategies that coordinate engineering prevention and control with ecological protection.
作者
林大丰
LIN Dafeng(Fujian Provincial Institute of Architecture Design and Research Co.,LTD,Fuzhou 350001)
出处
《福建建筑》
2025年第11期38-46,共9页
Fujian Architecture & Construction
关键词
滚石
岩堆
稳定性评价
风险分级评价
Rockfall
Talus deposits
Stability evaluation
Risk classification evaluation
