A physical simulation test for the rockburst in tunnels
文献类型:期刊论文
作者 | Li Tianbin ; Wang Xiangfeng ; Meng Lubo |
刊名 | JOURNAL OF MOUNTAIN SCIENCE
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出版日期 | 2011-04 |
卷号 | 8期号:2页码:278–285 |
关键词 | Rockburst Physical simulation Similar materials (Gypsum Strain jump Spalling Buckling Breaking Cement Sand Water) |
ISSN号 | 1672-6316 |
通讯作者 | Li, TB |
英文摘要 | According 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. |
语种 | 英语 |
公开日期 | 2013-08-12 |
源URL | [http://ir.imde.ac.cn/handle/131551/5833] ![]() |
专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2011_Vol8 No.2 |
推荐引用方式 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. |
入库方式: OAI收割
来源:成都山地灾害与环境研究所
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