Geomechanics and Engineering

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Tunnel lining load with consideration of the rheological properties of rock mass and concrete

  • Lukic, Dragan C. (Faculty of Civil Engineering Subotica, University of Novi Sad) ;
  • Zlatanovic, Elefterija M. (Faculty of Civil Engineering and Architecture, University of Nis) ;
  • Jokanovic, Igor M. (Faculty of Civil Engineering Subotica, University of Novi Sad)
  • Received : 2019.05.10
  • Accepted : 2020.03.08
  • Published : 2020.04.10
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Abstract

Rheological processes in the rock mass for the stress-strain analysis are quite important when considering the construction of underground structures in soft rock masses, particularly in case of construction in several stages. In the analysis, it can be assumed that the reinforced concrete structure is slightly deformable in relation to the rock mass, and the rheological stress redistribution happens at the expense of the elements of rock mass. The basic elements of rheological models for certain types of rock mass and analysis of these models are presented in the first part of this paper. The second part is dedicated to the analysis of rheological processes in marl rock mass and the influence of these processes on the reinforced-concrete tunnel structure.

Keywords

Acknowledgement

Supported by : Ministry of Education, Science, and Technological Development of the Republic of Serbia

The paper is a result of the investigation in the scope of the scientific–research projects OI 174027 and TR 36043 financed by the Ministry of Education, Science, and Technological Development of the Republic of Serbia.

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