No document
Search & filter
Search for a publication
Search & filter
List of products by author: B. Yun
-
A Comparative Study on Shield Tunnels with Different Cross - Section Forms
Abstract: Compared with circular tunnels, the space utilization of rectangular tunnels is more efficient, with a bigger usable tunnel face and a smaller minimum buried depth, resulting in lower project demolition cost. In the past 30 years, with advanced technology, and the necessity of higher utilization of precious underground resource, tunnel engineers have paid more attention to rectangle mechanized...
0,00 € -
Comparison of Two Possible Alternatives for the Development of Subsurface of Historical Buildings: A Case Study in...
Abstract: The role of underground space in the development and urbanization of cities has been increasingly challenged in recent years, especially in urban areas where the surface-land is mostly occupied. This is due to factors such as the unexpected need to go underground in large-scales, the initial human settlements of the city and the fast development of infrastructure. Therefore engineers,...
0,00 € -
Research on a new device used to decrease excess pore water pressure of soil around shield tunnels
Abstract: Grouting is important for shield tunneling as grouting material fills the adverse gap between segments and the surrounding soil. Generally, high grouting pressure will lead to large segment stress. In order to reduce the stress and deformation of segment, extra soil is usually removed behind the segment through a prefabricated hole located in the middle of each segment. However, this method may...
0,00 € -
Research on Settlement Characteristics and Calculation of Immersed Tunnels with Soft Foundation
Abstract: For the settlement characteristics and calculation of immersed tunnels with soft foundation, there is no sound experience for reference. Foundation settlement analysis method and design-parameter selection are important for large immersed tunnel design and construction, especially for tunnels with soft bed.The Dalian Bay Immersed Tunnel, with a full length of 3080m, consists of thirteen...
0,00 € -
Study on the Piston Wind in the Tunnel Generated by a Train with Fire Speeding to a Rescue Station
Abstract: A 3-D dynamic mesh model of a train with fire speeding to a rescue station was built in FLUENT software of CFD series. This paper has researched the change of the piston wind on cross sections in different positions of the tunnel and rescue station when a train runs and stops in the rescue station with different states (uniform motion, decelerated motion and stationary state). The results show,...
0,00 €
