open access

https://hdl.handle.net/2115/62719

岩石の透水性に及ぼす温度および封圧の影響

英語

confining pressure

2015-09-08

資源・素材学会

資源・素材2015（松山）企画発表・一般発表講演集

2015

3411

資源・素材2015（松山）―平成27年度資源・素材関係学協会合同秋季大会―, 2015年9月8日～10日, 愛媛大学, 松山市

Permeability was measured in triaxial compression condition under confining pressures of 1–15 MPa at 295 K and 353 K on Shikotsu welded tuff, Kimachi sandstone, and Inada granite. At 295 K, the postcompression permeability of Shikotsu welded tuff became smaller than that before axial compression. The permeability of Kimachi sandstone was higher than that before axial compression under low confining pressures, but lower under higher confining pressures. On the other hand, the postcompression permeability of Inada granite was higher than that before axial compression regardless of the confining pressure values. At 353 K, the post-compression permeability was lower than at 295 K for all the rock types but not so obvious for Kimachi sandstone. Influence of confining pressure was less for Shikotsu welded tuff but more apparently for Inada granite than at 295 K. The reasons behind the permeability changes are discussed.

会議発表論文

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