摘要
简述了锚杆支护机理,阐明了锚杆的支护作用表现在对围岩应力状态的改变和对围岩力学参数的提高上.推导了具有加固圈圆形隧洞的弹塑性解析解,运用锚杆对圆形隧洞围岩物理力学参数提高的公式,得出了锚杆加固圆形隧洞的加固效应.通过计算验证了锚杆对围岩的加固作用.
The timbering mechanism of ground anchors is stated according to the principle of mechanics of rock mass.It indicates that the function of ground anchors is changing the status of surrounding rock and improving the mechanics parameter.The elastic and plastic analytic formulation on circular tunnel structure is given.By using the formulation about ground anchors improving the mechanics parameter of surrounding rock,the function of strengthen about ground anchors timbering circular tunnel.The result of timbering of ground anchors is tested.
出处
《焦作工学院学报》
2002年第6期427-430,共4页
Journal of Jiaozuo Institute of Technology(Natural Science)
关键词
锚杆支护
围岩
隧洞
ground anchors
timbering
surrounding rock
tunnel
