IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2011  > Vol8 No.2
A physical simulation test for the rockburst in tunnels
Li Tianbin; Wang Xiangfeng; Meng Lubo
Corresponding AuthorLi, TB
AbstractAccording to the test results of the physical and mechanical properties of similar materials in various quality mixture, a type of material with obvious tendency of rockburst was selected to produce a large-size model to simulate rockburst phenomena in tunnels. The prototype model comes from a typical section of diversion tunnels in Jinping Hydropower Station in China. The simulation of excavating tunnels is carried out by opening a hole in the model after loading. The modeling results indicated that under the condition of normal stresses in the model boundaries the arch top, spandrel and side walls of the tunnel produced an obvious jump reaction of stress and strain and the acoustic emission counts of the surrounding rock also increased rapidly in a different time period after the "tunnel" excavation, showing the clear features of rockburst. The spalling, buckling and breaking occurred in the surrounding rock of model in conditions of over loading. It is concluded that the modeling tunnel segment in Jinping Hydropower Station is expected to form the tensile rockburst with the pattern of spalling, buckling and breaking.
KeywordRockburst Physical Simulation Strain Jump Similar Materials (Gypsum Spalling Cement Buckling Sand Breaking Water)
Document Type期刊论文
CollectionJournal of Mountain Science_Journal of Mountain Science-2011_Vol8 No.2
Recommended Citation
GB/T 7714
Li Tianbin,Wang Xiangfeng,Meng Lubo. A physical simulation test for the rockburst in tunnels[J]. JOURNAL OF MOUNTAIN SCIENCE,2011,8(2):278–285.
APA Li Tianbin,Wang Xiangfeng,&Meng Lubo.(2011).A physical simulation test for the rockburst in tunnels.JOURNAL OF MOUNTAIN SCIENCE,8(2),278–285.
MLA Li Tianbin,et al."A physical simulation test for the rockburst in tunnels".JOURNAL OF MOUNTAIN SCIENCE 8.2(2011):278–285.
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