双桥静力触探在沪宁高速铁路地基土层定名中的应用

Application of Static Cone Penetration Test of Double Bridge in the Nomenclature of Foundation Layer of Shanghai-Ningbo High-speed Railway

介绍了双桥静力触探应用于地基土层划分及定名中的操作流程和参考标准,在沪宁高速铁路镇江段的触探测试中,由触探曲线特征和参数值大小,可以快捷准确地划分出土层土类,进而得到土体的其他物理参数,确保强度和变形等理论计算的及时、合理,指导了路堤填筑等方案的科学实施,取得显著的经济效益。

The paper introduces the operation procedures and reference standards for the application of static cone penetration test of double bridge in classification and nomenclature of foundation layer. In the cone test of Zhenjiang section on Shanghai-Ningbo Railway, the accurate classification of soil layer can be done quickly through the characteristics of cone penetration test and parameters and subsequently obtain other physical parameter to ensure the timely and proper calculation of the strength and deformation which provides references for the filling of subgrade and achieves significant economic benefit.