沉管干振碎石桩对土层振动效应的试验研究  

Analysis of soil-layer vibrant effectiveness caused by forming dry-vibrated gravel column

作　　者：邱钰[1] 刘松玉[1] 黄卫[1] 

机构地区：[1]东南大学交通学院,江苏南京210096

出　　处：《中国公路学报》2001年第4期33-36,共4页China Journal of Highway and Transport

摘　　要：根据高速公路液化地基沉管碎石桩加固试验 ,对沉管碎石桩引起土层的振动效应、地基中孔隙水压力进行了分析。结果表明 :在碎石桩成桩过程中 ,对土层的预振作用、桩体的排水作用 ,将有利于土层的抗震。Based on the test of the liquefied foundation for expressway treated by the dry vibrated gravel column,the soil layer vibrant effectiveness and the pore water pressure in foundation caused by forming columns are analyzed.The result indicates that pre vibration during forming columns and the drainage action of columns is available for the earthquake resistance of foundation.

关 键 词：沉管 加固 干振碎石桩 高速公路 液化地基 孔隙水压力 土层 振动效应 试验 

分 类 号：U416.1[交通运输工程—道路与铁道工程]