Investigation on strain characteristic of buried natural gas pipeline under longitudinal landslide debris flow | |
Ma, Hongqiang1,2,3,4; He, Binxian1,2,3; Luo, Xinmei1; Cai, Weihua3; Liu, Dexu4; Hou, Caiqin2; Han, Jianping2 | |
2021-02 | |
发表期刊 | JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING |
ISSN | 1875-5100 |
卷号 | 86页码:- |
摘要 | In order to ensure the safe operation of buried natural gas pipeline (BNGP) under landslide debris flow (LDF), a model is established to investigate the strain characteristic of BNGP. The influence of longitudinal LDF morphology is analyzed for the elliptic deformation rate, tensile and compression strain of BNGP. The results show that the influence area of LDF is about 5 m from the upstream and downstream position of active area, respectively. The peak value of elliptic deformation rate is mainly impacted by the thickness and length of LDF, and will increase linearly with that. The maximum value of axial strains will also increase linearly with length, thickness and breadth of LDF. It will decrease with the angle of mountain slope and depth of BNGP. The fracture failure of BNGP may be occurred at the active area of LDF and upstream position of that. But the local yield or fold failure of BNGP will be occurred at the active area of LDF and downstream position of that. At the same time, a method is proposed to estimate the maximum value of elliptic deformation rate and axial strains of BNGP under longitudinal LDF. The deviations between the prediction results and simulation data are less than +/- 10%. |
关键词 | EQUIVALENT STRAIN RISK IDENTIFICATION DISASTER SAFETY DAMAGE AREA |
DOI | 10.1016/j.jngse.2020.103708 |
收录类别 | SCI ; SCIE ; EI |
语种 | 英语 |
WOS研究方向 | Energy & Fuels ; Engineering |
WOS类目 | Energy & Fuels ; Engineering, Chemical |
WOS记录号 | WOS:000606788500003 |
出版者 | ELSEVIER SCI LTD |
来源库 | WOS |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/147308 |
专题 | 土木工程学院 教务处(创新创业学院) |
通讯作者 | Ma, Hongqiang; Luo, Xinmei |
作者单位 | 1.East China Jiaotong Univ, Sch Civil Engn & Architecture, Nanchang, Jiangxi, Peoples R China; 2.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou, Peoples R China; 3.Northeast Elect Power Univ, Sch Energy & Power Engn, Jilin 132012, Jilin, Peoples R China; 4.Sinopec Petr Engn Zhongyuan Corp, Puyang, Peoples R China |
第一作者单位 | 兰州理工大学 |
通讯作者单位 | 兰州理工大学 |
推荐引用方式 GB/T 7714 | Ma, Hongqiang,He, Binxian,Luo, Xinmei,et al. Investigation on strain characteristic of buried natural gas pipeline under longitudinal landslide debris flow[J]. JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,2021,86:-. |
APA | Ma, Hongqiang.,He, Binxian.,Luo, Xinmei.,Cai, Weihua.,Liu, Dexu.,...&Han, Jianping.(2021).Investigation on strain characteristic of buried natural gas pipeline under longitudinal landslide debris flow.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,86,-. |
MLA | Ma, Hongqiang,et al."Investigation on strain characteristic of buried natural gas pipeline under longitudinal landslide debris flow".JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING 86(2021):-. |
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