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Comparative Analysis of Two Kinds of Support Structure in Jointed Rock Tunnels: Rock Bolts and Steel Arches
Rock bolts and steel arches are common methods of support used in tunnel engineering. To compare the support efficiency of rock bolts and steel arches, numerical simulations were conducted using discrete element software to analyze the mechanical response characteristics and tunnel stability of support systems. Firstly...
Optimization of a Highway Tunnel Bottom Structure in Three-Layer Upper-Soft and Lower-Hard Composite Ground Using Physical and Numerical Models
Tunnel excavation in ground comprising a soft upper stratum and a hard lower stratum posed significant challenges, particularly during invert construction using drilling-and-blasting methods, which could disturb the surrounding rock and the installed support system. To address these issues, this study evaluates the fea...