摘要
以广州地铁五号线岩溶地层盾构技术处理措施为例,分析了溶洞的特点和分布特征。采用钻探法和CT法结合的勘察方法,论证了盾构通过岩溶地层的特殊处理办法,结合盾构施工情况对隧道进行检测,结果表明注浆均达到设计效果。最后,总结盾构掘进过程中需要注意的问题,保证施工质量。
Taking Guangzhou Subway No. 5 line as an example, construction of shield tunnel in karst stratum is researched. Characteristics and distribution features of karst caves are analyzed. Investigation method of drilling and CT method are combined to discuss special treatment measures when shield machine passing through karst stratum. Based on shield construction conditions, inspection results show that grouting effect can reach design requirements. At last, attention problems during shield construction are summed up, and construction quality is ensured.
出处
《施工技术》
CAS
北大核心
2008年第9期51-53,57,共4页
Construction Technology
关键词
隧道工程
盾构技术
岩溶地层
施工技术
tunnel engineering
shield technology
karst stratum
construction technology
