Exploring Deep-Rock Mechanics through Mechanical Analysis of Hard-Rock In Situ Coring System
Exploration of deep-rock mechanics has a significant influence on the techniques of mining and rock mechanics. Rock coring technique is the basic method for all rock mechanics study. With the increase of the drilling depth and increasing strength of the hard rock, how to obtain high-quality rock cor...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/8899156 |
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| author | Jianan Li Heping Xie Ling Chen Cong Li Zhiqiang He |
| author_facet | Jianan Li Heping Xie Ling Chen Cong Li Zhiqiang He |
| author_sort | Jianan Li |
| collection | DOAJ |
| description | Exploration of deep-rock mechanics has a significant influence on the techniques of mining and rock mechanics. Rock coring technique is the basic method for all rock mechanics study. With the increase of the drilling depth and increasing strength of the hard rock, how to obtain high-quality rock core through various coring techniques is an eternal work. Here an innovative method is applied to design the new coring system to maximize the efficiency of operation. The stress conditions or parameters of rock core in the coring are analyzed, and the mechanism of the core with in situ stress is shown in this paper. The conflict of the core and coring tool chamber is proposed for the innovative design. The innovative design method is fulfilled by the theory of inventive problem solving (TRIZ). An improved coring system for the full-length core with in situ stress was obtained with the solutions of improved coring mechanism, cutting mechanism, and spiral drill pipe. |
| format | Article |
| id | doaj-art-957b909b9a2a481cbfaf0a975ac6fbf1 |
| institution | OA Journals |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-957b909b9a2a481cbfaf0a975ac6fbf12025-08-20T02:10:05ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/88991568899156Exploring Deep-Rock Mechanics through Mechanical Analysis of Hard-Rock In Situ Coring SystemJianan Li0Heping Xie1Ling Chen2Cong Li3Zhiqiang He4School of Mechanical Engineering, State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, ChinaSchool of Mechanical Engineering, State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, ChinaSchool of Mechanical Engineering, State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, ChinaSchool of Mechanical Engineering, State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, ChinaSchool of Mechanical Engineering, State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, ChinaExploration of deep-rock mechanics has a significant influence on the techniques of mining and rock mechanics. Rock coring technique is the basic method for all rock mechanics study. With the increase of the drilling depth and increasing strength of the hard rock, how to obtain high-quality rock core through various coring techniques is an eternal work. Here an innovative method is applied to design the new coring system to maximize the efficiency of operation. The stress conditions or parameters of rock core in the coring are analyzed, and the mechanism of the core with in situ stress is shown in this paper. The conflict of the core and coring tool chamber is proposed for the innovative design. The innovative design method is fulfilled by the theory of inventive problem solving (TRIZ). An improved coring system for the full-length core with in situ stress was obtained with the solutions of improved coring mechanism, cutting mechanism, and spiral drill pipe.http://dx.doi.org/10.1155/2020/8899156 |
| spellingShingle | Jianan Li Heping Xie Ling Chen Cong Li Zhiqiang He Exploring Deep-Rock Mechanics through Mechanical Analysis of Hard-Rock In Situ Coring System Advances in Civil Engineering |
| title | Exploring Deep-Rock Mechanics through Mechanical Analysis of Hard-Rock In Situ Coring System |
| title_full | Exploring Deep-Rock Mechanics through Mechanical Analysis of Hard-Rock In Situ Coring System |
| title_fullStr | Exploring Deep-Rock Mechanics through Mechanical Analysis of Hard-Rock In Situ Coring System |
| title_full_unstemmed | Exploring Deep-Rock Mechanics through Mechanical Analysis of Hard-Rock In Situ Coring System |
| title_short | Exploring Deep-Rock Mechanics through Mechanical Analysis of Hard-Rock In Situ Coring System |
| title_sort | exploring deep rock mechanics through mechanical analysis of hard rock in situ coring system |
| url | http://dx.doi.org/10.1155/2020/8899156 |
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