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武广高速铁路金沙洲隧道是我国首次在复杂地质条件下下穿城市立交桥的浅埋特大断面(大于160m2)隧道。为了确保施工过程安全可控,对沙贝立交枢纽进行风险辨识和风险评估,根据评估结果,在洞内外采取了有效的降低施工风险的处理措施,确保了浅埋特大断面隧道下穿立交枢纽的安全,可供类似工程参考。
The Jinshazhou Tunnel of the Wuhan-Guangzhou high-speed railway is the first large-shallow super-large section (over 160m2) tunnel under the complicated geological conditions in China under the city overpass. In order to ensure the safe and controllable construction process, risk identification and risk assessment of the Shabei Interchange are carried out. Based on the assessment results, effective measures to reduce the construction risk are taken both inside and outside the cave to ensure the safety of the Shabu Interchange under the crossing interchange Security, for similar projects for reference.