厚大卵石层中淹水沉井施工技术  

Construction Technology on Waterlogged Caisson at Thick Boulder Bed

作　　者：杜伟[1] 曹会清[1] 寇宝庆[1] 王乐[1] 姜涛[1] 

机构地区：[1]中国石油天然气管道局,河北廊坊065000

出　　处：《施工技术》2010年第S2期286-287,共2页Construction Technology

摘　　要：沉井施工是比较成熟的工艺,但是在层厚达16m、粒径超过1.4m漂石的砂卵石层中的沉井施工在国内还是比较罕见的。以吉林市第二松花江盾构始发沉井工程为例,详细介绍在厚大卵石层的淹水沉井施工,探索行之有效的施工技术。Open caisson construction is a relatively mature technology,but in thickness up to 16 meters,diameter of more than 1.4 meters of sand and boulders,the caisson construction in China is still relatively rare.Based on launching caisson project of shield tunnel crossing the second Songhua River in Jilin,the authors introduce construction of caisson in the thick boulder,and explore effective construction technology.

关 键 词：厚大卵石层 淹水沉井 潜水作业 

分 类 号：TU753.64[建筑科学—建筑技术科学]