Time effects in rock-support interaction: a case study in the construction of two road tunnels

2004 ◽  
Vol 41 (3) ◽  
pp. 540
Author(s):  
Ling Xu ◽  
Hongwei Huang
Keyword(s):  
Rock Support ◽  
Time Effects ◽  
Support Interaction ◽  
Road Tunnels

Case Study on Rock Support Technology for Roadways Based on Characteristics of Plastic Area

2020 ◽  
Author(s):  
Chao Yuan ◽  
Liming Cao ◽  
Wenjun Wang ◽  
Lei Fan ◽  
Cong Huang
Keyword(s):  
Rock Support

scholarly journals Should We Expect a Disastrous Fire Accident in an Urban Road Tunnel? Literature Data Review and a Case Study for Selected Tunnels in Poland

2021 ◽  
Vol 13 (11) ◽  
pp. 6172
Author(s):  
Krystian Szewczyński ◽  
Aleksander Król ◽  
Małgorzata Król
Keyword(s):  
Time Horizon ◽  
Road Traffic ◽  
Traffic Intensity ◽  
Road Tunnel ◽  
Urban Road ◽  
Road Tunnels ◽  
High Uncertainty ◽  
Fire Outbreak ◽  
Fire Accident

Urban road tunnels are a reasonable remedy for inconvenience due to congested road traffic. However, they bring specific threats, especially those related to the possibility of fire outbreak. This work is a case study for selected urban road tunnels. Considering tunnel specificity, road traffic intensity, and structure and based on the literature data for vehicle fire probability, the chances of a fire accident were estimated for selected tunnels in Poland. It was shown that low power tunnel fires could be expected in the 10–20-year time horizon. Although such threats cannot be disregarded, tunnel systems are designed to cope with them. The chances of a disastrous fire accident were estimated as well. Such events can occur when an HGV with flammable goods or a tanker are involved. Such accidents are fortunately very rare, but, on the other hand, that is the reason why the available data are scanty and burdened with high uncertainty. Therefore, a discussion on the reliability of the obtained results is also provided.

Discontinuum analysis and support design of road tunnels – A case study

2018 ◽  
pp. 141-150
Author(s):  
R. Venugopala Rao ◽  
S. Naik ◽  
M.N. Reddy ◽  
R.N. Gupta
Keyword(s):  
Support Design ◽  
Road Tunnels

Case studies considering the influence of the time-dependent behaviour of concrete on the serviceability limit state design of composite steel-concrete buildings

2021 ◽  
pp. 137-156
Author(s):  
Alejandro Pérez Caldentey ◽  
John Hewitt ◽  
John van Rooyen ◽  
Graziano Leoni ◽  
Gianluca Ranzi ◽  
...  
Keyword(s):  
Case Studies ◽  
Limit State ◽  
Time Dependent ◽  
Commercial Building ◽  
Time Effects ◽  
Concrete Buildings ◽  
Time Dependent Behaviour ◽  
Dependent Behaviour ◽  
Composite Steel

<p>This chapter presents a number of case studies that deal with the service design of composite steel-concrete buildings associated with the time-dependent behaviour of the concrete. The particular focus of this chapter is to outline key design aspects that need to be accounted for in design and that are influenced by concrete time effects. The first case study provides an overview of the design considerations related to the time-dependent column shortening in typical multi-storey buildings by considering the layout of the Intesa Sanpaolo Headquarters in Turin as reference. The second case study focuses on a composite floor of a commercial building constructed in Australia and it provides an overview of the conceptual design used to select the steel beam framing arrangement to support the composite floor system while accounting for concrete cracking and time effects. The third case study deals with the Quay Quarter Tower that has been designed for the repurposing of an existing 50-year old building in Australia while accounting for the time-dependent interaction between the existing and the new concrete components of the building.</p>

The environmental impact of rock support for road tunnels: The experience of Norway

2020 ◽  
Vol 712 ◽  
pp. 136421
Author(s):  
Lizhen Huang ◽  
Pål Drevland Jakobsen ◽  
Rolf André Bohne ◽  
Yongping Liu ◽  
Amund Bruland ◽  
...  
Keyword(s):  
Environmental Impact ◽  
Rock Support ◽  
Road Tunnels
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