摘要
通过对现有岩锚梁设计计算方法的分析,指出了设计的基本假设中存在的缺陷,在原有研究的基础上,建立了综合考虑岩壁变形、锚杆变形和岩锚吊车梁变位的岩锚吊车梁设计计算方法。同时,建议了岩壁弹性抗力系数的取值方法,并采用数值方法模拟锚杆拉拔试验,建立了岩石锚杆水平弹性刚度系数的求算公式。最后,按一般方法和改进方法针对3个不同实例分别进行了计算,并与数值计算的结果进行了对比分析。
The rigid ultimate equilibrium method is the common calculating method for rock-bolt crane girder design. A main shortcoming of this calculating method is that the common calculating method cannot consider the deformation of the structure and the action between the rock-bolt crane girder and rock wall. Based on the analysis of the common calculating method of rock-bolt crane girder, some problems of the design methods are identified; and a new calculating method for rock-bolt crane girder which has involved...
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2005年第S1期175-179,共5页
Rock and Soil Mechanics
关键词
岩锚吊车梁
计算方法
岩石锚杆
弹性刚度系数
rock-bolt crane girder
calculating method
rock bolt
elastic stiffness coefficient
