原位测试技术在冲洪积区岩土工程勘察中的应用  

Application of in-situ testing technologyto geotechnical engineering investigation in alluvial area

作　　者：肖强 闫亚亚 Xiao Qiang;Yan Yaya(Ningxia Highway Survey and Design Institute Co.,Ltd.,Yinchuan Ningxia 750000,China;Ningxia Institute of Remote Sensing Survey,Yinchuan Ningxia 750000,China)

机构地区：[1]宁夏公路勘察设计院有限责任公司,宁夏银川750000 [2]宁夏回族自治区遥感调查院,宁夏银川750000

出　　处：《山西建筑》2024年第24期73-75,共3页Shanxi Architecture

基　　金：基于综合遥感的宁夏清水河河谷平原典型湿陷性黄土地区地表形变特征研究(编号:2023AAC03786)。

摘　　要：河流经古河床的多次变迁,冲洪积地层分布复杂、不均匀,为了准确查明复杂区线路的岩土层力学性质,采用静力触探、标准贯入试验等原位测试方法,对多种勘察方法得到的成果进行对比印证,结果表明原位测试方法测试得到的成果相较于室内试验能更有效地反映岩土层力学性质,具有操作便捷、受客观因素影响小的优点,得出的岩土层的压缩特性、承载力特征值等结果较为合理。The distribution of alluvial strata is complex and uneven due to the multiple changes of ancient river beds.In order to accurately identify the mechanical properties of rock and soil layers in complex areas,in-situ testing methods such as static penetration test and standard penetration test are used to compare and confirm the results obtained by various investigation methods.The results show that the results obtained by in-situ testing method can more effectively reflect the mechanical properties of soil layer than the indoor tests,and have the advantages of convenient operation and less influence by objective factors.The results obtained by in-situ testing method are more reasonable in terms of the compression characteristics and bearing capacity characteristics of soil layer.

关 键 词：原位测试 室内试验 力学性质 岩土工程勘察 

分 类 号：TU412[建筑科学—岩土工程]