摘要
结合十漫高速公路云岭隧道建设,分析了隧道底鼓的形式和发展过程,研究了影响隧道底鼓的多个因素,在分析隧道仰拱稳定性的基础上,推导了隧道底鼓的表达式,并通过现场监测对其进行了验证。通过对隧道底鼓机制进行分析,正确认识了围岩的变形破坏机制,提出了隧道底鼓的治理措施。其研究结果不仅为优化隧道的支护体系提供了依据,同时对指导隧道现场施工,确保施工安全具有重要意义。
Combining the construction of Yunling Tunnel of Shiman Expressway,the form and developing process of floor heave in tunnel are described.Several factors affecting floor heave are studied.By analyzing the stability of the invert of tunnel,a formula for calculating floor heave is obtained;and then verified by the data of spot monitoring.By analyzing the mechanism of floor heave of tunnel,the deformation damage mechanism of rock mass is understood correctly and the disposal measures of floor heave are prescribed.The research not only can provide basis to optimize the supporting system of tunnel,but also to guide construction process and insure constructive safety.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2010年第8期2530-2534,共5页
Rock and Soil Mechanics
关键词
隧道
软弱围岩
仰拱底鼓
治理措施
tunnel
weak rock mass
floor heave of invert
disposal measures.
