一、前言本文介绍修订1978年《公路工程抗震设计规范》(试行)(以下称“78规范”)关于饱和砂土与饱和亚砂土液化判别公式的建议。“78规范”采用了《工业与民用建筑抗震设计规范》(TJ11—74)所推荐的标准贯入判别砂土液化的方法,该公式是根据我国1972年以前6次大地震的现场勘察资料和震害资料建立的。自规范公布使用以来,在勘察设计中起到了重要的作用,普遍认为 I. INTRODUCTION This paper introduces the proposal to revise the liquefaction judgment formula of saturated sand and saturated subsoil in the 1978 “Seismic Design Code for Highway Engineering” (Trial) (hereinafter referred to as “the Code of 78”). The “78 Code” adopted the method of penetrating discrimination of sand liquefaction recommended by “Seismic design code for industrial and civil buildings” (TJ11-74). The formula is based on the site survey data of 6 large earthquakes before 1972 and Earthquake damage information established. Since the announcement and use of the standard, it has played an important role in survey and design and is generally believed