Analytical study of hydraulic tunnel in brittle rock masses with strain-softening characteristic
文献类型：期刊论文
| 作者 | Kang, Bian; Jian, Liu |
| 刊名 | DISASTER ADVANCES
 |
| 出版日期 | 2013 |
| 卷号 | 6页码:200-213 |
| 关键词 | brittle rock mass hydraulic tunnel strain-softening brittle-damage variable seepage analytical solution |
| ISSN号 | 0974-262X |
| 英文摘要 | In order to describe the strain-softening behavior after peak stress of brittle rock masses, a brittle-damage variable under uniaxial compression status is introduced in analytical solutions. On this basis, the damage variable for brittle rock mass nearby circular tunnel is derived in this paper, when the tunnel is subjected to a hydrostatic stress field. Considering the influence of seepage, analytical solutions of elastoplastic stresses and plastic radii for circular hydraulic tunnel are proposed. Moreover, the direction of first principal stress for surrounding rock nearby circular tunnel is taken into account in the derivation process: The calculation results of example show that after considering brittle damage, the plastic radius will increase to a certain extent compared with elastic-perfectly plastic model; besides, plastic radius will also rise along with growth of brittle extent for rock masses. With consideration of seepage influence, the plastic radius will expand, and elastoplastic stresses are also influenced by a series of seepage parameters. Consequently, it is non-ignorable to consider impacts of brittle characteristic for rock masses and seepage in structural stability analysis of hydraulic tunnel. |
| WOS研究方向 | Geology ; Meteorology & Atmospheric Sciences ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000325056000024 |
| 出版者 | DISASTER ADVANCES |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3510]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn |
| 推荐引用方式 GB/T 7714 | Kang, Bian,Jian, Liu. Analytical study of hydraulic tunnel in brittle rock masses with strain-softening characteristic[J]. DISASTER ADVANCES,2013,6:200-213. |
| APA | Kang, Bian,&Jian, Liu.(2013).Analytical study of hydraulic tunnel in brittle rock masses with strain-softening characteristic.DISASTER ADVANCES,6,200-213. |
| MLA | Kang, Bian,et al."Analytical study of hydraulic tunnel in brittle rock masses with strain-softening characteristic".DISASTER ADVANCES 6(2013):200-213. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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