矿业科学技术学报(英文版)2023，Vol.33Issue(11) ：1377-1395.DOI:10.1016/j.ijmst.2023.10.003

Design and development of the deep-rock in-situ condition-preserved coring calibration platform

Yihang Li Heping Xie Ru Zhang Zetian Zhang Zhilong Zhang Heng Gao Wei Huang Jixun Zhang Jiming Gao Xin Ma Ruibing Xu
矿业科学技术学报(英文版)2023，Vol.33Issue(11) ：1377-1395.DOI:10.1016/j.ijmst.2023.10.003
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Design and development of the deep-rock in-situ condition-preserved coring calibration platform

Yihang Li 1Heping Xie 2Ru Zhang 1Zetian Zhang 1Zhilong Zhang 1Heng Gao 1Wei Huang 3Jixun Zhang 4Jiming Gao 4Xin Ma 5Ruibing Xu6
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作者信息

  • 1. State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering,College of Water Resource and Hydropower,Sichuan University,Chengdu 610065,China
  • 2. State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering,College of Water Resource and Hydropower,Sichuan University,Chengdu 610065,China;Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization,Institute of Deep Earth Sciences and Green Energy,College of Civil and Transportation Engineering,Shenzhen University,Shenzhen 518060,China;Shenzhen Key Laboratory of Deep Underground Engineering Scienc
  • 3. School of Mechanical Engineering,Sichuan University,Chengdu 610065,China
  • 4. Donghua Zhuoyue Technology Co.,Ltd.,Chengdu 611130,China
  • 5. Special Equipment Safety Supervision Inspection Institute of Jiangsu Province,Nanjing 210036,China
  • 6. Inner Mongolia North Heavy Industries Group Co.,Ltd.,Baotou 014033,China
  • 折叠

Abstract

To systematically validate and calibrate the theory and technology of the deep in-situ condition-preserved coring,the in-situ conditions at different depths should be simulated,and the full-size coring tests should be carried out in this simulated environment.Therefore,a deep-rock in-situ condition-preserved coring calibration platform was designed and developed.The self-tightening sealing structure and the quick-disassembly structure were designed on the basis of an innovative segmented nonuniform-diameter structure,which was a breakthrough from the traditional high-pressure vessel frame and was verified by finite element simulation and actual testing under extreme working conditions,respectively.To simulate the actual deep in-situ environment with a temperature of 150°C and pressure of 140 MPa for a large Φ450 mm×H1400 mm core,temperature and pressure control systems were designed by cou-pling,and a pre-embedded high-pressure-resistant temperature sensor was designed.Finally,high-precision assembly automation,complex movement coordination of the coring device with the platform,and rotary dynamic sealing were achieved by utilizing the combination of adaptive cabin body servo con-trol and an adaptive mechanical structure in a limited space,laying a solid foundation for the calibration of in-situ condition-preserved coring.

Key words

In-situ condition-preserved coring calibration/Deep Earth science/Coring simulation/Rotary dynamic seal

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基金项目

National Natural Science Foundation of China(51827901)

National Natural Science Foundation of China(52225403)

Shenzhen National Science Fund for Distinguished Young Scholars(RCJC20210706091948015)

出版年

2023
矿业科学技术学报(英文版)
中国矿业大学

矿业科学技术学报(英文版)

CSTPCDCSCDEI
影响因子：1.222
ISSN：2095-2686
参考文献量8
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