Permanent Lining Design of Tunnels Junction using Hyperstatic Reaction Method

Publish Year: 1395
نوع سند: مقاله کنفرانسی
زبان: English
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ICASCE03_043

تاریخ نمایه سازی: 6 اسفند 1395

Abstract:

Deformations and stress distributions in tunnel intersection areas are more complicated than those in common tunnels. In this paper, three dimensional numerical modeling is performed by considering hyperstatic reaction concepts. Designing is done for a real tunnel project. The numerical analyses were performed for Operational Design Earthquake (ODE) and Maximum Design Earthquake (MDE) loading conditions. The numerical results showed the maximum axial force and bending moment are occurred in the intersection of main and connection tunnels. Then, the stable lining for this section is obtained using axial force-bending moment interaction diagram. This numerical analyzing presented that HRM is a suitable, fast, and practical method for tunnel engineers.

Authors

Rahim Hassani

MSc in Rock Mechanics Engineering, Iran Oston Consulting Engineers Company, Tehran, Iran

Rouhollah Basirat

Iran Oston Consulting Engineers Company, Tunnel Engineer; PhD Student in Rock Mechanics Engineering, Tarbiat Modares University, Tehran, Iran

Navid Mahmoodian

Head of Structural Engineering Department, Iran Oston Consulting Engineers Company, Tehran, Iran