Tentatively, this study introduced simple and economical Dynamic Cone Penetrometer (DCP) and Impact Soil Tester (IST) for facilitating the investigation of subgrade and upgrading its quality.

• 为此，本研究尝试导入简易且低价位之动态圆锥贯入仪(DCP)与土壤冲击测定器(IST)，来调查路基之工程性质。