【摘要】 结合广州地区已建和在建的数条地铁线路建设过程中存在的技术难点,针对含断裂带、残积土、软弱土、溶洞、"红层"及上软下硬等特殊地层,总结分析在这些复杂变化地质条件下盾构施工风险及主要的风险控制技术,为今后地铁建设提供一定的参考及指导。更多还原

【Abstract】 Risks are summarized and risk control technologies are proposed for shield tunneling in complex geological conditions as encountered during the construction of Metro lines in Guangzhou,which include fractured zones,residual soils,soft strata,karst caves,"red strata" and "upper-soft and lower-hard" strata.The study results can provide reference and guidance for Metro construction in the future.更多还原