Innovative wavy bolts and their supporting mechanism for burst prone rock masses

摘要：

A new type of bolt with wavy body has been designed for the supporting of burst prone rock masses and turned out to be a great success. To reveal its working mechanism, static and dynamic analyses have been carried out. Firstly, static pull-out investigations show that wavy body of the bolt has largely improved its deformation capability. Then, vibration modes and corresponding frequencies of wavy bolts and traditional point anchored bolts are obtained respectively by mode analyses. It is revealed that, at the same exciting frequency range, more vibration modes, especially the axial vibrations, can be excited for wavy bolts than for traditional bolts. Furthermore, Analyses on wave interaction between bolt and rock masses show that the energy catcher function of wavy bolt cluster is vital for its excellent supporting effect in burst prone rock masses.

关键词： Wavy bolt Burst prone rock mass Vibration Modal analysis Energy catcher

作者: Zi Long Zhou Xi Bing Li Chun De Ma Yang Zou Tu Bing Yin

作者单位: School of Resources and Safety Engineering, Central South University, Changsha, 410083, China Testing Center, Central South University, Changsha 410083, China

会议类型: 国际会议

会议名称: 2011 International Conference on Mechatronics and Applied Mechanics(2011年机电一体化与应用力学国际会议 ICMAM 2011)

会议地点: 香港

会议语种:英文

页码: 1195-1198

在线出版日期: 2011-12-27（万方平台首次上网日期，不代表论文的发表时间）