MODEL TEST RESEARCH ON A COMPOSITE LINING OF UNDERGROUND ENGINEERING IN JOINTED ROCK[J]. Journal of Civil and Environmental Engineering, 1991, 13(1). DOI: 10.11835/j.issn.1674-4764.1991.01.001.
层状岩体中地下工程复合衬砌模型试验研究
摘要
本文结合重庆市菜袁公路Ⅱ号隧道设计方案
对层状岩体中深埋隧道围岩及二次衬砌的受力状态、时间效应及破坏机理
进行了模型试验研究.试验结果表明
复合衬砌的破坏亦属剪切破坏;喷锚支护改善围岩的力学性能
提高抵抗变形的能力;二次村砌能起到支护结构的作用.
Abstract
Combined with thedesign precept of Cai-Yuan highway tunnel 2 in Chongqing
stress state
time ffectiveness and rupture mechanism of rock near the bounda-ries of the tunnel and the second lining in jointed rock mass arc studied with model tests.The results show that shotcretc-bolt support betters mechanical properties of the periphey rock of the tunnel
and increases the capacity of anti-deformation.The second lining also has the action of supporting structure.