摘要
针对隧洞工程设计过程中岩体力学参数取值难的问题,将能综合考虑岩块力学特性及岩体地质条件的改进H—B准则引入某公路隧洞的支护设计过程,在介绍这一准则使用条件、使用方法的基础上,应用这一准则对某公路隧洞考虑和不考虑爆破影响的岩体力学参数进行了确定,并应用大型岩土工程数值分析软件FINAL进行了模拟施工过程的仿真分析,最后对H—B准则应用过程中的几个关键问题进行了探讨。
Aimed at the difficulty of parameters selecting in tunneling engineering design, the improved H-B criterion which can consider the mechanical properties of rock block and geological condition of rock mass is introduced to the supporting design of a highway tunnel. Based on the detailed description of the using condition and using method of H-B criterion, the termined when considering and not considering the blasting mechanical parameters of rock mass are deeffect. Furthermore, the numerical analysis considering the construction process is done using the software FINAL. Finally, some key problems in the course of using H-B criterion are discussed.
出处
《中南公路工程》
2006年第6期61-64,84,共5页
Central South Highway Engineering
基金
国家自然科学基金(50479023)
湖南大学科学基金(521101834)联合资助项目
关键词
H-B准则
隧洞
爆破
优化
支护
H-B criterion
tunnel
blasting
optimism
supporting
