黄河三角洲地区砂土路基液化机理探讨及处置

Study and Conduction on Liquefaction Mechansim of Sand Subgrade in the Yellow River Delta Area

摘要:

从砂土路基液化机理入手，结合黄河三角洲地区地基土工程地质特征，对该地区路基砂土液化做现场振动试验，找出影响砂土路基液化的影响因素，主要内因有土体的密实度、含水量和土体中是否存在软弱区；主要外因有荷载的大小、作用时间和荷载频率。并针对砂土液化的内外因，结合青银高速公路强夯处理案例展开分析，提出了处理方法。

Abstract:

From the mechanism of liquefaction of sand subgrade, combining with the geo-engineering characteristics of sand subgrade in the Yellow River delta region, and carrying out roadbed vibration test of sand liquefaction in the region, elements which can effe