Ditapis dengan
Dynamic Response of Tunnel Lining to Resonance Rubblization Induced Vibration…
The resonance rubblization technology can be adopted to reconstruct old concrete pavement and eradicate reflection cracking. This method fractures pavement into fragments quickly and directly casts asphalt on fractures, shortening time cost of reconstruction. Previous studies about this technology mainly concentrated on asphalt-casting methods, and the quality, stiffness, and flatness of reco…
Effect og Different Adding Methods of Nano-TiO2 on Photocatalytic Degradation…
LOKASI: Ruang Koleksi Umum Rak 3
Research on Strength Charcteristic Parameter of Sandy Pebble Soil Based on Di…
Sandy pebble soil is widely distributed in our country. Lots of studies show that sandy pebble soil makes dynamic behavior not clear due to typical discreteness of gravels and random geometrical distribution. This paper quantitatively analyzes the law of the strength characteristics of sandy pebble tunnel surrounding rock under different density and moisture content conditions through large-s…
In-Situ Experimental Analysis of Acceleration Response of Mountain Tunnel Lin…
Resonant rubblization technology is often utilized to rehabilitate deteriorated condrete pavements. Vibrations induced by a resonant breaker would produce detrimental effects on lining structures in tunnel during rubblization construction. The in-situ experiments were carried out in Yangjiao Mountain Tunnel in Zheijiang Province, China. First, the characteristics of rubblization-induced vibrati…
Discrete Element Analysis of the Excavation Disturbance of Cross-River Twin-T…
The increasing number of twin-tunnels constructed in river-crossing subway traffic compels the designers to explore its dynamics performance in the excavation progress. The characteristics of particle accelerations of the granular medium in the surroundings are the important factors to reflect the excavation disturbance. In the construction process of the twin-tunnels, the excavation of the sec…
A Multilayer Analytical Model and Experimental Verification for Tunnel Lining…
The thermal-mechanical behavior of tunnel lining segment plays a key role in governing its fire protection design. Existing models are mainly developed for the analysis nonlinear and non-elastic behavior of segment under fire, however the complexity of the model impede their application in engineering. In this study, a multilayer analytical model is proposed to describe the behavior of segmen…
Analysis and Application Exploration of Smoothed Particle Hydrodynamics (SPH)…
Home Proceedings of GeoShanghai 2018 International Conference: Tunnelling and Underground Construction Conference paper Analysis and Application Exploration of Smoothed Particle Hydrodynamics (SPH) for Non-circular Shield Tunneling Peinan Li, Jun Liu, Yixin Zhai & Wenqi Ding Conference paper First Online: 05 May 2018 Abstract Cutting stirring and synchronous grouting is direct interact…
Influence of Aspect Ratio of the Exhaust Opening on Smoke Propagation in a La…
The point extraction system (PES) is effective and popular especially for long and large cross-section tunnels. To clearly comprehend the fire characteristics on the cross-section and correctly apply the smoke strategy, we conduct a series of numerical Computation Fluid Dynamics (CFD) simulations according to the dimensions of the South Hongmei Rd. tunnel, located in Shanghai, China. We set the…
Fire Response Performance and Social Behavior in Tunnels Distingulshing from …
The most decisive factor of tunnels’ safety in the face of fire is the chance of evacuation safely. Immediate response and proper movement in evacuation from tunnels in fire is essential, which can largely improve the rescue efficiency and reduce the casualties. Tunnels, different from buildings, provide significantly different influence on evacuees due to its unique environment, layout, fi…
