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Keywords: internal force
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Proceedings Papers
Study on Combined Bearing Effect of Concrete Lining and Surrounding Rock of Large Tunnel and Lining Optimization
Available to PurchasePublisher: American Rock Mechanics Association
Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1206
... is smaller. For tunnels in category III 2 surrounding rock, the 0.4 m lining has little increase in maximum tensile stress compared with 0.5 m lining, the load bearing ratio is smaller, the internal force is smaller, the amount of reinforcement is also smaller. Therefore, it is feasible to reduce the lining...
Proceedings Papers
Case Study on Design and Construction of a Urban Subway Tunnel in Karst Regions
Available to PurchasePublisher: American Rock Mechanics Association
Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0598
...’ experiences. Furthermore, comparison of different design methods in different countries and analysis of effective support techniques in karst areas will also be summarized. 1. INTRODUCTION structural geology Construction Risk construction method Upstream Oil & Gas internal force support...
Proceedings Papers
Stability Analysis of a Tunnel Supported By Shotcrete-rockbolt System In Hard Bedrock
Available to PurchasePublisher: American Rock Mechanics Association
Paper presented at the DC Rocks 2001, The 38th U.S. Symposium on Rock Mechanics (USRMS), July 7–10, 2001
Paper Number: ARMA-01-1029
... ABSTRACT: In tunnel excavation methods that use rock as main suppol1, shotcrete and rockbolt are installed to help the formation of ground arch region as a primary reinforcement. For the evaluation of tunnel stability in hardrock, the ground displacements, convergence and the internal forces...
