Simulation of strain-stress behavior of a tunnel collector in the combined anthropogenic effects conditions

7th International Symposium Actual Problems of Computational Simulation in Civil Engineering

土木建筑工程;计算机科学

Perminov, N.^1 ; Perminov, A.^2

Emperor Alexander i St.Petersburg State Transport University, Moskovsky av. 9, St. Petersburg

190031, Russia^1

Scientific Research and Design Center TransSpetsStroy, 24 Furshtatskaya st., St. Petersburg

191028, Russia^2

关键词: Anthropogenic effects;    High-rise construction;    Internal effects;    Protective measures;    Service reliability;    Transport infrastructure;    Underground transport;    Urban engineering;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/456/1/012083/pdf
DOI  :  10.1088/1757-899X/456/1/012083

来源: IOP

【 摘 要 】

In the intensive development conditions of urban engineering and transport infrastructure long-operating sewage tunnel collectors face the action of unfavorable anthropogenic effects combination. The external anthropogenic effects include additional static and vibro-dynamic loads caused by ground and underground transport, changes in urban planning and geotechnical situation, as a rule, during joint underground and high-rise construction. The internal effects include sign-alternating (headed and non-headed) influence of aggressive sewage waters and, consequently, structural corrosion and beyond-limit decrease of its bearing capacity during long-term exploitation. The paper gives real practical examples and shows that pre-limit strain-stress behavior simulation of tunnel collectors under the conditions of combined anthropogenic effects and calculative substantiation of protective measures provide bearing capacity and service reliability during their lifecycle at the stages of reconstruction and use.