摘要
根据工程地质的岩体结构控制观点及“突破”观点,岩石边坡工程的稳定性往往由其中的块体分布及其稳定状态所控制,因此,及时确定与实时控制这些块体系统的稳定性就十分重要。为此,以某大型岩石高边坡为例,在分析该高边坡的工程地质条件,尤其是结构面分布特征基础上,首先,采用块体理论分析了该复杂岩石边坡工程块体系统的分布规律,找出了控制该大型边坡稳定性的关键块体的位置、规模及开挖后的稳定性系数,并据此指导优化岩石边坡稳定性的监测布置与加固控制;其次,根据监测信息对块体系统加固前后的受力及稳定性动态进行了分析。
According to the viewpoint of discontinuity control and structure breakthrough of rockmass stability,the stability of rock slope engineering is greatly controlled by the distribution and stability state of key block system which is formed by the combination of rock discontinuities with excavation plane,so it is very important to determine and control the stability of key block system. For a complex high rock slope engineering as example,based on the analysis of geological conditions for the slope,especially the distribution of rock discontinuities,the distribution laws of block system for the complex rock slope engineering are analyzed by key block body theory firstly. Then the location,scale and stability coefficient of key block system of the complex slope are found out and calculated,and above results are used to instruct and optimize the monitoring layout in field,so that the correct bolt support is made effectively according to the monitoring information of key block system.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2004年第10期1658-1661,共4页
Chinese Journal of Rock Mechanics and Engineering
基金
国家自然科学基金(49802026)资助项目
关键词
边坡工程
岩体结构
块体理论
滑面
监测
稳定性
slope engineering,rock discontinuities,key block body theory,slip surface,monitoring and control
