การหาความสัมพันธ์ระหว่างผลทดสอบตอกหยั่งแบบเบา กับ การตอกทดสอบมาตรฐาน ด้วยการวิเคราะห์ทางสถิติจากฐานข้อมูลการทดสอบจริงในสนาม เพื่อใช้ในงานออกแบบฐานรากระดับตื้น

Abstract

Properties and variation of subsoils are usually required for a geotechnical design. This information can be obtained from various tests including the standard penetration test (SPT) which may be the most common technique in Thailand. Due to its weight, the SPT is only suitable for car accessible areas and also requires a certain cost for the mobilization of equipment. For shallow or low number investigations, the tests that can be operated and mobilized by 1~2 people such as dynamic probe light tests (DPL, EN ISO 22476) may be more appropriate. In this study, the influence of friction between test rod and surrounding ground to the DPL test results is investigated using a DPL apparatus with energy measurement sensors. The comparisons are also made between SPT and DPL results for developing an empirical relationship between standard penetration test and dynamic probe test under working environment in Thailand.