Ｄｉｓｃｒｅｔｅ ｅｌｅｍｅｎｔ ｎｕｍｅｒｉｃａｌ ｓｉｍｕｌａｔｉｏｎ ｏｆ ｔｒｉａｘｉａｌ ｆｌｕｉｄ ｓｏｌｉｄ ｃｏｕｐｌｉｎｇ ｂａｓｅｄ ｏｎ ｓｅｅｐａｇｅ ｅｘｐｅｒｉｍｅｎｔ
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ＺｈａｎｇＣｕｎ１1,2,3,
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２4,
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３1,2,3,
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ＴｕＳｈｉｈａｏ４1,2,3,
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ＺｈａｏＹｉｘｉｎ１1,2,3
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1??BeijingKeyLaboratoryforPreciseMiningofIntergrownEnergyandResources,Beijing100083,China; 2??SchoolofResourceandSafetyEngineering,ChinaUniversityofMiningandTechnolog,Beijing100083,China; 3??StateKeyLaboratoryofCoalResourcesandSafeMining,Beijing100083,China; 4??SchoolofMines,ChinaUniversityofMiningandTechnology,XuzhouJiangsu221116,China
More Information
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- Received Date:
November 25, 2018
- Revised Date:
November 25, 2018
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Abstract
Ｔｈｅｃｏｕｐｌｉｎｇｃｈａｒａｃｔｅｒｉｓｔｉｃｓｏｆｃｏａｌｓｅａｍｓｔｒｅｓｓ，ｆｒａｃｔｕｒｅａｎｄｓｅｅｐａｇｅｄｉｒｅｃｔｌｙａｆｆｅｃｔｔｈｅｍｉ⁃ ｇｒａｔｉｏｎｃｈａｒａｃｔｅｒｉｓｔｉｃｓｏｆｐｒｅｓｓｕｒｅｒｅｌｉｅｆｇａｓｄｕｒｉｎｇｔｈｅｐｒｏｔｅｃｔｉｖｅｓｅａｍｍｉｎｉｎｇ*Ｉｎｔｈｉｓｐａｐｅｒ，ｃｏｍｂｉｎｅｄ ｗｉｔｈｃｕｂｉｃｌａｗ，ｔｈｅｍｅｔｈｏｄｆｏｒｔｈｅｓｅｌｅｃｔｉｏｎｏｆｔｈｅｆｌｕｉｄｓｏｌｉｄｃｏｕｐｌｉｎｇｐａｒａｍｅｔｅｒｓｏｆｅｌａｓｔｉｃｊｏｉｎｔｓａｎｄ ｐｅｒｓｉｓｔｅｎｔｆｒａｃｔｕｒｅｗａｓｐｒｏｐｏｓｅｄｂａｓｅｄｏｎｔｈｅｅｘｐｅｒｉｍｅｎｔａｌｄａｔａｏｆｔｈｅｅｌａｓｔｉｃａｎｄｐｅｒｓｉｓｔｅｎｔｆｒａｃｔｕｒｅ ｃｏａｌｓａｍｐｌｅｓ*Ｍｅａｎｗｈｉｌｅ，ｔｈｅｓｉｍｕｌａｔｉｏｎｍｏｄｅｌｉｎｇｏｆｆｌｕｉｄｓｏｌｉｄｃｏｕｐｌｉｎｇｆｏｒｔｒｉａｘｉａｌｆｌｏｗ ｔｅｓｔｏｆｃｏａｌ ｓａｍｐｌｅｓｗａｓｂｕｉｌｔ*Ｏｎｔｈｅｂａｓｉｓｏｆｔｈｉｓｓｉｍｕｌａｔｉｏｎｍｅｔｈｏｄ，ｔｈｅｃｏｕｐｌｉｎｇｃｈａｒａｃｔｅｒｉｓｔｉｃｓｏｆｔｈｅｃｏａｌｓａｍｐｌｅ ｓｔｒｅｓｓ，ｆｒａｃｔｕｒｅａｎｄｆｌｏｗｗｅｒｅｓｉｍｕｌａｔｅｄａｎｄａｎａｌｙｚｅｄｄｕｒｉｎｇｕｎｉａｘｉａｌａｎｄｔｒｉａｘｉａｌｌｏａｄｉｎｇ*Ｔｈｅｓｉｍｕｌａｔｉｏｎ
ｒｅｓｕｌｔｓｓｈｏｗ ｔｈａｔ ｔｈｅ ｐｅｒｍｅａｂｉｌｉｔｙ ｏｆ ｃｏａｌ ｓａｍｐｌｅｓ ｃｈａｎｇｅｓ ａｓ Ｓ ｔｙｐｅ ｗｉｔｈ ｔｈｅ ｉｎｃｒｅａｓｅ ｏｆ ａｘｉａｌ ｓｔｒａｉｎ*Ｔｈｅｐｅｒｍｅａｂｉｌｉｔｙｏｆｃｏａｌｓａｍｐｌｅｄｅｃｒｅａｓｅｓｇｒａｄｕａｌｌｙｗｉｔｈｔｈｅｉｎｃｒｅａｓｅｏｆａｘｉａｌｐｒｅｓｓｕｒｅｂｅｆｏｒｅｔｈｅ ｆｒａｃｔｕｒｅｏｆｃｏａｌｓａｍｐｌｅｄｅｖｅｌｏｐｍｅｎｔ*Ｔｈｅｐｅｒｍｅａｂｉｌｉｔｙｏｆｔｈｅｃｏａｌｓａｍｐｌｅｓｉｎｃｒｅａｓｅｓｗｉｔｈｔｈｅｄｅｖｅｌｏｐ⁃ ｍｅｎｔｏｆｔｈｅｆｒａｃｔｕｒｅｓ，ａｎｄｔｈｅｆａｓｔｅｒｔｈｅｆｒａｃｔｕｒｅｅｘｐａｎｓｉｏｎｒａｔｅｉｓ，ｔｈｅｈｉｇｈｅｒｔｈｅｐｅｒｍｅａｂｉｌｉｔｙｉｎｃｒｅａ⁃ ｓｅｓ*Ｔｈｅｉｎｃｒｅａｓｅｏｆｃｏｎｆｉｎｉｎｇｐｒｅｓｓｕｒｅｒｅｓｕｌｔｅｄｉｎｔｈｅｄｅｃｒｅａｓｅｏｆｉｎｔｅｒｎａｌｆｒａｃｔｕｒｅｇｅｎｅｒａｔｉｏｎａｎｄｐｒｏｐ⁃ ａｇａｔｉｏｎ，ａｎｄｔｈｅｐｅｒｍｅａｂｉｌｉｔｙｒｅｄｕｃｔｉｏｎｓｔａｇｅｗａｓｅｘｔｅｎｄｅｄ*Ｔｈｅｉｎｉｔｉａｌｐｅｒｍｅａｂｉｌｉｔｙａｎｄｙｉｅｌｄｉｎｇｐｅｒｍｅ⁃ ａｂｉｌｉｔｙｏｆｔｈｅｃｏａｌｓａｍｐｌｅｓｄｅｃｒｅａｓｅｄｇｒａｄｕａｌｌｙ*
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