摘要
分析边坡孤石的稳定性影响因素对灾害的预警预测至关重要。为揭示边坡孤石的失稳致灾成因,针对某大型花岗岩边坡孤石滚落诱发的地质灾害,开展工程地质调查。调查结果表明:导致孤石失稳致灾的诱因可分为内因和外因两方面,其中内因包括地形地貌、工程地质岩组组合、水文地质条件,其中地形地貌与水文地质条件主要影响地表水的冲刷与地下水的径流,工程地质岩组组合主要控制岩体产状;外因包括强降雨与外力作用。地质调查结果可对孤石的稳定性分析与灾害预警提供理论依据。
Influence factors of weathered spheres on the slope is crucial for disaster warning and prediction.In order to reveal the factors leading to the instability of weathered sphere on slope,conducted an engineering geological investigation on a large-scale granite slope where rockfall disasters occurred.The investigation results indicate that the factors contributing to the instability and triggering of disasters in weathered spheres can be divided into internal and external factors.Internal factors include topography,geomorphology,engineering geological rock composition,and hydrogeological conditions.Topography and hydrogeological conditions primarily influence surface water erosion and groundwater runoff,while engineering geological rock composition controls the development of joint fissures.External factors encompass heavy rainfall and external forces.The geological investigation findings provide a theoretical basis for stability analysis and disaster warning of weathered spheres.
作者
周明文
李文俊
孙翰卿
许龙
ZHOU Mingwen;LI Wenjun;SUN Hanqing;XU Long(Guangzhou Design Institute Group Co.,Ltd.Guangzhou 510620,China;School of Civil Engineering and Transportation,South China University of Technology Guangzhou 510640,China;Guangzhou Municipal Construction Co.,Ltd.Guangzhou 510030,China;Nonferrous Mine Geological Disaster Prevention Center of Guangdong Province Guangzhou 510080,China)
出处
《广东土木与建筑》
2024年第2期38-41,共4页
Guangdong Architecture Civil Engineering
基金
住房和城乡建设部科学技术计划项目(2022-K-039)
广东省住房和城乡建设厅科技计划项目(2020-K5-144658)
广州市建筑集团有限公司科技计划项目([2023]-KJ016)。
关键词
花岗岩风化球
稳定性
落石崩塌
强降雨
地质调查
weathered granite sphere
stability
rockfall collapse
heavy rainfall
geology survey
作者简介
周明文(1984-),男,大学本科,高级工程师,主要从事地质勘察方面研究工作。E-mail:182276312@qq.com;通讯作者:李文俊(2000-),男,硕士研究生,助理工程师,主要从事岩土工程方面的研究工作。E-mail:202221009095@mail.scut.edu.cn。
