增压式真空预压处理广珠铁路珠海西站软基效果分析  

Experimental Study on Air-boosted Vacuum Preloading for Zhuhai West Station Soft Foundation in Guangzhou-Zhuhai Railway

作　　者：余江 

机构地区：[1]中铁六局集团有限公司北京铁路建设有限公司,北京100036

出　　处：《路基工程》2011年第5期166-168,171,共4页Subgrade Engineering

摘　　要：分析介绍了一种新型的真空预压处理技术——增压式真空预压应用于广珠铁路珠海西站软基处理。为验证增压式真空预压的适宜性,在现场设置四个不同设计方案的试验断面,分别进行了表层沉降、分层沉降和孔隙水压力的对比分析。试验结果表明,采用增压式真空预压提高了预压期的沉降量,缩短了固结时间。This paper introduced a new type vacuum preloading technology—air-boosted vacuum preloading applied in Zhuhai West Station Soft Foundation in Guangzhou-Zhuhai Railway.In order to verify the applicability of air-boosted vacuum preloading,four different designed sections are set on site to separately analyze surface settlement,layered settlement and pore water pressure.The test results showed that air-boosted vacuum preloading improved settlement in preloading period and shortened consolidation time.

关 键 词：增压式真空预压 软土 站场路基 

分 类 号：U416.166[交通运输工程—道路与铁道工程]