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Abstract: In the 2008 Wenchuan earthquake, more than ten mountain tunnels in operation around the epicenter suffered severe damages. Among all the damaged tunnels, the Longxi tunnel was the most special one which is located at a distance of 2 km from the epicenter of the earthquake. For the seismic design of tunnel structure, an effective simplified approach, two-dimensional finite element model is...
Abstract: Shield tunnelling technology has significant advantages in urban areas, and it has become one of the most common tunnel excavation methods in the world. However, there are huge challenges for shield tunnelling in Chengdu, China, i.e., cobbles and boulders are difficult to smash, cutter tools wear severely, water-rich sand and gravel spew easily and soil conditioning is challenging. These...