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Analysis of Water Stop Reinforcement and Deformation of Surrounding Rock in Water-rich Quicksand Stratum
Author(s): 
Pages: 14-19
Year: Issue:  6
Journal: Urban Mass Transit

Keyword:  富水流砂地层隧道围岩止水加固分段止水帷幕;
Abstract: 通过理论分析和数值模拟方法,对深圳地铁4号线穿越大脑壳山富水流砂地层的洞内长管结合短管注浆、地面帷幕墙结合洞内导管注浆、地面旋喷分段止水帷幕及袖阀管注浆结合洞内导管注浆、地面高压旋喷桩分段止水帷幕结合洞内导管注浆等四种止水加固方案进行了分析.结果表明,方案四的隧道顶部沉降和应力皆小于前两种方案.综合考虑工期和造价,最终选用方案四.方案四无漏砂涌水现象发生,最终变形符合规定.实测表明,注浆加固开挖后...
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