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Changan Zhang, Jianlei Gao, Zhengzhong Wang and Chang Liu
More complex geological conditions could be encountered with the construction of urban subway projects. At present, many subway tunnels have been built in composite strata with upper soft and lower hard layers, but the presence of a cavity in the strata ...
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Xu Zhang, Chiyu Liang, Shimin Huang and Youjun Xu
Straight-wall arch cross-sections are usually designed at the entrance and exit tunnels of subway stations, and dense underground pipelines often cross these cross-sections at close range. Among these pipelines, gas pipelines have the highest risk level....
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Dengqun Wang, Shuaihua Ye and Jun Zhang
The construction of an urban metro will inevitably involve deep excavation. Risk assessment before deep excavation, risk reduction measures, and real-time monitoring during excavation can effectively ensure the safety of deep excavation. Taking the deep ...
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Giulia Delo, Marco Civera, Erica Lenticchia, Gaetano Miraglia, Cecilia Surace and Rosario Ceravolo
In recent years, the use of interferometric satellite data for Structural Health Monitoring has experienced a strong development. The urban environment confirms its fragility to adverse natural events, made even more severe by climate change. Hence, the ...
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Xiang Zhao, Hanxuan Wang, Zhongwei Li, Guoliang Dai, Ziwei Yin, Shuning Cao and Junlong Zhou
The excavation of the foundation pit will cause changes in the soil stress field around the foundation pit, and that may have adverse effects on the adjacent subway tunnels. In this paper, a complex deep foundation pit excavated in different sections is ...
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Jianye Li, Qian Fang, Xiang Liu, Jianming Du, Gan Wang and Jun Wang
This article investigates and presents a case study on the Beijing Subway Line 12 excavation beneath the existing Qinghuayuan Tunnel. The composite pre-reinforcement technique was used in conjunction with the shallow tunneling method to control the disto...
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Ehsan Ghobakhloo,Mahyar Pourlak,Arash Razmkhah
Pág. 59 - 66
The study of the effect of seismic wave scattering has attracted extensive attention in the past couple of decades especially in infrastructures like tunnels. A seismic wave, meeting the tunnel, can generate scattering which, in most cases, may incur dam...
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