分析岩土工程勘察中标准贯入试验(SPT)的N值运用及校正

Analysis on the Application and Correction of N Value of Standard Penetration Test(SPT)in Geotechnical Investigation

标准贯入试验是一种易操作,设备简单,能取祥,适用性强,并且精度较高,积累了较多丰富经验的原位测试技术,是在岩土工程勘察中运用广泛且不可缺少的一项野外现场测试方法。通过文献资料及规范,论文探讨了标贯在工程勘察领城中的广泛运用及现有规范中关于标贯击数N值的校正情况;重新梳理认识标贯试验的优点及局限性,在标贯成果运用中提出一点建议,为工程技术人员提供参考。

The standard penetration test is an in-situ test technology which is easy to operate, has simple equipment, can sample, has strong applicability and high precision, and has accumulated more rich experience. It is an indispensable in-situ test technology in geotechnical investigation. Through papers and standards, this paper discusses the broad application of standard penetration text in the field of geotechnical investigation and the correction of hit numbers N in current existing standards, reviews the advantages and limitations of the standard penetration test, puts forward some suggestions in the application of standard penetration test results and provides reference for engineers and technical personnel.