茂名某工程砂土状及碎块状强风化花岗岩的工程地质特征  

ENGINEERING GEOLOGICAL CHARACTERISTICS OF SAND-LIKE AND BLOCK-LIKE STRONGLY WEATHERED GRANITE IN A PROJECT IN MAOMING

作　　者：恽孟河 韩非 YUN Menghe;HAN Fei(AVIC Institute of Geotechnical Engineering Co.,Ltd.,Beijing 100083,China)

机构地区：[1]中航勘察设计研究院有限公司,北京100083

出　　处：《资源信息与工程》2025年第2期17-20,共4页Resource Information and Engineering

摘　　要：在工程勘察中,人们通常将标准贯入击数大于等于50击的花岗岩岩体定名为强风化岩体。通过某工程勘察成果发现,强风化花岗岩地层根据其工程地质特性的差异性,可将其细分为砂土状强风化和碎块状强风化两种地层。本研究采用野外特征观察、原位测试、室内试验等多种方法手段,对岩体特征指标进行评价,对物理力学参数及后续施工提出针对性建议,可节省设计施工成本并提高工程效率。In engineering investigations,granites with SPT blow count greater than or equal to 50 are usually named as strongly weathered rock.Through the results of an engineering survey,it was found that strongly weathered granite stratum can be subdivided into sandy strongly weathered stratum and fragmented strongly weathered stratum according to the differences in their engineering geological properties.Through various methods including field observation,in-situ testing,and indoor testing,this research evaluates the characteristic indicators of the rock mass,puts forward targeted suggestions for physical and mechanical parameters and subsequent construction,which can save design and construction costs and improve project efficiency.

关 键 词：砂土状 碎块状 强风化花岗岩 工程地质特征 

分 类 号：TU45[建筑科学—岩土工程]