Influencing factors and evaluation application of regional crustal stability in the Bohai Strait

Mei, Sai; Chu, Hongxian; Dong, Lü; Zhonghua, Fang; Li, Pan-feng; Zhang, Feifei; Shan, Rui; Tie-hu, Zhao

doi:10.31035/cg2018075

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“…Building ventilation shafts will affect regular shipping, whereas, due to military limitations, no infrastructure at the sea surface is permitted. erefore, a subsea tunnel scheme without shafts crossing the Laotieshan Course should be designed [2][3][4]. e narrowest width of the Laotieshan Course is 48 km, which is the shortest possible length of the BSC tunnel.…”

Section: Introductionmentioning

confidence: 99%

Exploring the Feasibility of Ventilation without Shafts for an Ultralong Subsea Tunnel in the Bohai Strait Channel

Liang

et al. 2021

Advances in Civil Engineering

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The Bohai Strait Channel (BSC) is a strategic infrastructure project connecting the Shandong Peninsula and northeastern China. One challenge related to building the BSC tunnel portion is that ventilation shafts cannot be constructed due to certain limitations, which leads to a barrier for ventilation design. To explore the feasibility of ventilation without shafts, we first compare the tunnel ventilation design methods in China and the European Union. We also present the development process of emission standards, base emission rates, and design concentration values. Then, a new ventilation calculation for the BSC tunnel with reference values from the World Road Association (PIARC) is presented. The results show that the longitudinal ventilation design without shafts is feasible under normal traffic conditions when adopting values designed by PIARC under both the Chinese method and the European method. Furthermore, the influence of new energy vehicles and the necessity of ventilation rate on ventilation design are discussed. We suggest considering new energy vehicle fire situations and ignoring the ventilation rate for BSC tunnels. We hope to provide a strong reference for the ventilation design of BSC tunnels and for the improvement of relative ventilation codes in China.

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Section: Introductionmentioning

confidence: 99%

Exploring the Feasibility of Ventilation without Shafts for an Ultralong Subsea Tunnel in the Bohai Strait Channel

Liang

et al. 2021

Advances in Civil Engineering

View full text Add to dashboard Cite

show abstract

Influencing factors and evaluation application of regional crustal stability in the Bohai Strait

Cited by 1 publication

References 0 publications

Exploring the Feasibility of Ventilation without Shafts for an Ultralong Subsea Tunnel in the Bohai Strait Channel

Exploring the Feasibility of Ventilation without Shafts for an Ultralong Subsea Tunnel in the Bohai Strait Channel

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