水利工程勘察中原位测试方法的应用研究  

Research on the Application of In-situ Testing Methods for Hydraulic Engineering Surveys

作　　者：于洋 Yu Yang(Guyuan Water Conservancy Survey and Design Institute Co.Ltd.,Guyuan,Ningxia 756000)

机构地区：[1]固原市水利勘测设计院有限公司,宁夏固原756000

出　　处：《江西建材》2024年第11期124-125,131,共3页

摘　　要：原位测试法作为直接获取工程土体信息的技术手段,在工程勘察中发挥着关键作用。某供水站项目为获取施工场地内表层土体地基承载力,开展静力触探试验、十字板试验以及标准贯入试验测试,并对比不同原位测试方法的准确性和操作便捷性。研究结果表明,静力触探试验、十字板试验以及标准贯入试验所得地基承载力特征值分别为93、94和96 kPa,相差较小,与室内试验(100 kPa)和建议值(90 kPa)也较为接近,均具有一定的代表性和可靠性,保障了工程项目进度和施工质量。然而,实际工程需综合考虑工程成本、操作难度、现场设备情况等因素,综合选择合适的原位测试方法。As a technical means to directly obtain underground engineering information,in-situ testing methods play a key role in engineering investigation.In order to obtain the bearing capacity of the surface soil foundation in the construction site of a water supply station,the static cone test,the cross plate test and the standard penetration test were carried out,and the accuracy and ease of operation of different in-situ test methods were compared,and the results showed that the characteristic values of the bearing capacity of the foundation obtained by the static cone penetration test,the cross plate test and the standard penetration test were 93,94 and 96 kPa,respectively,which were small and close to the indoor test(100 kPa)and the recommended value(90 kPa).All of them have a certain representativeness and reliability,which ensures the smooth progress and quality of the project,but in the actual project,it is necessary to comprehensively consider the project cost,operation difficulty,on-site equipment and other factors to comprehensively select the appropriate in-situ test method.

关 键 词：原位测试 工程勘察 供水站 地基承载力 

分 类 号：TV221[水利工程—水工结构工程]