摘要
针对青藏铁路高含冰量冻土地区特殊自然条件 ,改进了拼装涵洞的施工技术 ,在涵节预制、涵节运输、涵洞基础施工、涵节现场拼装方面作了技术改进 ,克服了现浇涵洞作业量大、投入多、保温困难的缺点 ,同时又便于推广新技术、新工艺 .实践证明 。
According to the natural environment of Qinghai Tibet railway,the construction technique of precast installed culvert is improved.The method of precast,transportation,foundation constuction and in site installation are improved.This method overcomes the shortcoming of traditional method and is good at using a new technique.It is proved that it has a good result.
关键词
高含冰量
冻土
拼装涵洞
施工
high ice content
frozen soil
precast installed culvert
construction technique
