郑西客专陕西段路基湿陷性黄土地基处理简介  

Introduction to treatment of collapsible loess subgrade for Shaanxi section of Zhengzhou-Xi'an passenger dedicated railway line

作　　者：王应铭[1] 李肖伦[1] 

机构地区：[1]中铁第一勘察设计院集团有限公司,西安710043

出　　处：《岩土力学》2009年第S2期283-286,共4页Rock and Soil Mechanics

摘　　要：郑州至西安铁路客运专线为时速350千米的无砟轨道铁路,其路基竣工后不允许发生15mm以上的沉降,为满足该要求,开展了相关试验研究,确定了湿陷性黄土地基处理原则,采用水泥土挤密桩、长短桩及埋入式连续桩板结构成功地对地基进行了处理,取得的成果对即将修建的西宝客专、宝兰客专、西成客专及大西客专具有借鉴意义。Zhengzhou-Xi'an passenger dedicated railway line is 350 kilometers per hour ballastless track;its allowable subgrade settlement should be less than 15 mm after completion of the subgrade.In order to meet the requirements,the relevant tests are carried out;and the collapsible loess subgrade treatment principles are determined.And the subgrade are treated successfully by using cement-soil compacted piles,long and short piles and embedding continuous pile-board structure.The achievement will be reference to the upcoming construction of Xi'an-Baoji passenger dedicated line,Baoji-Lanzhou passenger dedicated line,Xi'an-Chengdu passenger dedicated line.

关 键 词：湿陷性黄土 客运专线 无砟轨道 沉降观测 

分 类 号：U213.1[交通运输工程—道路与铁道工程]