Practical Exploration on Open Shield Tunneling in Underground Engineering under Complex External Construction Conditions
This article takes the implementation of the Xinzhuang underground crossing project as the background.The project is located at the intersection of multiple main roads,with existing elevated bridges above ground and subways as well as pipelines under ground.The external conditions for construction are relatively complex.The project is the first underground crossing project in the country to use the open shield tun-neling method for construction.By introducing the open shield tunneling method,analyzing its advantages,and introducing the construction process,the feasibility of using the open shield tunneling method in underground engineering under complex external conditions is explored.And also based on practical experience the existing problems of the method are analyzed.
Open shield tunnelingUnderground engineeringComplex external construction conditions
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