【摘要】 选取甘肃黄土地区有代表性的几条高等级公路,采用承载板、贝克曼弯沉梁、落锤式弯沉仪3种方法实测土基回弹模量,建立三者之间的相互转换公式,进而提出了路基设计回弹模量取值范围为35～71MPa,保证率97.7%,为进一步研究甘肃黄土地区的路面典型结构打下基础。更多还原

【Abstract】 Bearing plate, Benkelman beam deflectometer and falling weight deflectometer are utilized to test rebound module of subgrade on some typical high-grade highways in Gansu province. Their relationship formulas and design rebound module limits of subgrade is found, it is from 35 MPa to 71 MPa, the insurance rate is 97%.The results can give a basis for investigating the pavement typical structure in this area. 7 tabs, 8 refs.更多还原