Lanzhou University of Technology Institutional Repository (LUT_IR)
Field Testing of Earth Pressures in a Large-scale Natural Loess Slope | |
Kong, Yang1,2,3; Ruan, Huai-ning1,2,3; Huang, Xue-feng4,5; Zhu, Zhen-de1,2,3 | |
2018-07 | |
发表期刊 | KSCE JOURNAL OF CIVIL ENGINEERING |
ISSN | 1226-7988 |
卷号 | 22期号:7页码:2266-2273 |
摘要 | An in-situ large-scale earth pressure test was undertaken in a natural loess slope in Lanzhou, China. A 14.5-m-high natural slope was gradually cut into a vertical slope through a series of eight slope cutting work conditions. By pre-installing re-bar meters and cutting slope unloading, the real earth pressure distribution law and potential slip surface development mechanism, along with the variation of the Slope Cutting Depth (SCD), were obtained under the condition that each point in the free surface can move independently and freely. Earth pressure increases slowly at first and then decreases sharply along the Slope Excavating Depth (SED). The increase rate for 9.0 to 10.4 m is 3 to 4 times as much as the former conditions, so the self-stability height of the slope is 9.0 to 10.4 m. The unsaturated natural loess shear outlet of the slope is always located at the H/3 (where H is the natural slope height) position, so the slip surface does not pass through the bottom of the slope. The measured values of unsaturated vertical slope earth pressures are far less than the values calculated by Rankine's earth pressure theory-especially the size and position of the maximum earth pressure. |
关键词 | natural loess slope earth pressure in-situ testing cutting slope |
DOI | 10.1007/s12205-017-0339-x |
收录类别 | SCI |
语种 | 英语 |
资助项目 | National Natural Science Foundation of China[51579081] |
WOS研究方向 | Engineering |
WOS类目 | Engineering, Civil |
WOS记录号 | WOS:000436440900014 |
出版者 | KOREAN SOCIETY OF CIVIL ENGINEERS-KSCE |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/32587 |
专题 | 兰州理工大学 |
通讯作者 | Huang, Xue-feng |
作者单位 | 1.Hohai Univ, Inst Geotech Res, Nanjing 210098, Jiangsu, Peoples R China 2.Hohai Univ, Key Lab, Minist Educ Geomech & Embankment Engn, Nanjing 210098, Jiangsu, Peoples R China 3.Hohai Univ, Jiangsu Res Ctr Geotech Engn Technol, Nanjing 210098, Jiangsu, Peoples R China 4.Logist Engn Univ, Dept Architectural Engn, Chongqing 401331, Peoples R China 5.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Gansu, Peoples R China |
通讯作者单位 | 兰州理工大学 |
推荐引用方式 GB/T 7714 | Kong, Yang,Ruan, Huai-ning,Huang, Xue-feng,et al. Field Testing of Earth Pressures in a Large-scale Natural Loess Slope[J]. KSCE JOURNAL OF CIVIL ENGINEERING,2018,22(7):2266-2273. |
APA | Kong, Yang,Ruan, Huai-ning,Huang, Xue-feng,&Zhu, Zhen-de.(2018).Field Testing of Earth Pressures in a Large-scale Natural Loess Slope.KSCE JOURNAL OF CIVIL ENGINEERING,22(7),2266-2273. |
MLA | Kong, Yang,et al."Field Testing of Earth Pressures in a Large-scale Natural Loess Slope".KSCE JOURNAL OF CIVIL ENGINEERING 22.7(2018):2266-2273. |
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