自然科学版 英文版
自然科学版 英文版
自然科学版 英文版

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中南大学学报(英文版)

Journal of Central South University

Vol. 24    No. 3    March 2017

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Determination of isolation layer thickness for undersea mine based on differential cubature solution to irregular Mindlin plate
PENG Kang(彭康)1, 2, 3, LIU Zhao-peng(刘照朋)1, 3, ZHANG Yong-liang(张永亮)4, FAN Xiang(范祥)5, CHEN Qin-fa(陈庆发)6

1. State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University,
Chongqing 400044, China;
2. State Key Laboratory of Resources and Safe Mining (CUMT), Xuzhou 221116, China;
3. College of Resources and Environmental Science, Chongqing University, Chongqing 400030, China;
4. Automotive School, Qingdao Technological University, Qingdao, Shandong 266520, China;
5. School of Highway, Chang’an University, Xi’an 710064, China;
6. College of Resources and Metallurgy, Guangxi University, Nanning 530004, China

Abstract:The differential cubature solution to the problem of a Mindlin plate lying on the Winkler foundation with two simply supported edges and two clamped edges was derived. Discrete numerical technology and shape functions were used to ensure that the solution is suitable to irregular shaped plates. Then, the mechanical model and the solution were employed to model the protection layer that isolates the mining stopes from sea water in Sanshandao gold mine, which is the first subsea mine of China. Furthermore, thickness optimizations for the protection layers above each stope were conducted based on the maximum principle stress criterion, and the linear relations between the best protection layer thickness and the stope area under different safety factors were regressed to guide the isolation design. The method presented in this work provides a practical way to quickly design the isolation layer thickness in subsea mining.

 

Key words: subsea mine; irregular Mindlin plate; differential cubature method; isolation layer; protection layer; thickness optimization

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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