Calculation of Pressure on the Shallow-buried Double-arch Tunnel Without Middle Drift
文献类型：期刊论文
| 作者 | Tang, Hua1,2; Jiang, Chengye1,2; Deng, Qin1,2; Bi, Taijun1,2; Cha, Zengyun3 |
| 刊名 | KSCE JOURNAL OF CIVIL ENGINEERING
 |
| 出版日期 | 2022-11-01 |
| 卷号 | 26期号:11页码:4805 |
| 关键词 | Double-arch tunnel without middle drift Pressure calculation Shallow-buried Analytical approach |
| ISSN号 | 1226-7988 |
| 英文摘要 | Compared with the traditional double-arch tunnel, the double-arch tunnel without middle drift has the obvious advantage of improving the construction progress. However, the surrounding rock pressure calculation method and evolution law for it is unclear. Based on a limit equilibrium analysis, a method to calculate the surrounding rock pressure is proposed with considering the sequential excavation of the two tunnels. A numerical analysis is conducted to verify the rationality of this method. The dynamic evolution and spatial distribution characteristics of surrounding rock pressure are pointed out, i.e., the vertical pressure acting on the first tunnel increases with the second tunnel being excavated, and the vertical pressure acting on the first tunnel is greater than that of the second tunnel. The excavation impact coefficient zeta and the bias coefficient eta are defined to quantitatively analyze the pressure characteristics. Two key factors influencing the coefficients including the depth of the tunnel and the surrounding rock characteristic have been analyzed. The results demonstrate that both the zeta and eta increase with increasing the depth of tunnel. Besides, the two coefficients increase when the friction angle increases between 30 degrees and 40 degrees, but decreases after exceeding 40 degrees. The analytical results are consistent with the numerical calculation results, which can provide a reference for similar engineering projects. |
| 学科主题 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000850462100002 |
| 出版者 | KOREAN SOCIETY OF CIVIL ENGINEERS-KSCE |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34995]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.University of Chinese Academy of Sciences, Beijing 100049, China 2.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, 430071, China 3.Yunnan Meng-lv Expressway Investment and Development Co., Ltd., Yunnan 665000, China |
| 推荐引用方式 GB/T 7714 | Tang, Hua,Jiang, Chengye,Deng, Qin,et al. Calculation of Pressure on the Shallow-buried Double-arch Tunnel Without Middle Drift[J]. KSCE JOURNAL OF CIVIL ENGINEERING,2022,26(11):4805. |
| APA | Tang, Hua,Jiang, Chengye,Deng, Qin,Bi, Taijun,&Cha, Zengyun.(2022).Calculation of Pressure on the Shallow-buried Double-arch Tunnel Without Middle Drift.KSCE JOURNAL OF CIVIL ENGINEERING,26(11),4805. |
| MLA | Tang, Hua,et al."Calculation of Pressure on the Shallow-buried Double-arch Tunnel Without Middle Drift".KSCE JOURNAL OF CIVIL ENGINEERING 26.11(2022):4805. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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