摘要
重点介绍了富水砂质粉土地层浅埋暗挖法隧道修建技术,通过采用夯管超前预支护、全断面注浆、CRD工法等辅助施工措施穿越既有运营铁路干线,保证了近距离双洞大跨隧道安全施工。
Undercutting construction technology of a shallow-buried tunnel in water-bearing layer of sandy silt was introduced. By taking some assisting construction measures such as advanced forepoling reinforcement, full-sectional grouting and CRD construction method, the passing of tunnel beneath the existing trunk railways and the construction safety of closely-spaced large-span twin tunnels were guaranteed.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2006年第3期353-357,共5页
Chinese Journal of Geotechnical Engineering
关键词
富水粉质砂土
浅埋暗挖
双洞大跨
信息反馈
water-rich sandy silt
undercutting with shallow overburden
twin large-span tunnels
information feedback
