标题:A high-precision and user-friendly triaxial apparatus for the measurement of permeability of gassy coal
作者:Liu, Zhongzhong ;Wang, Hanpeng ;Wang, Su ;Zhang, Bing ;Wang, Shugang
作者机构:[Liu, Zhongzhong ;Wang, Hanpeng ;Wang, Su ;Zhang, Bing ;Wang, Shugang ] Geotechnical and Structural Engineering Research Centre, Shandong University, 更多
通讯作者:Wang, Hanpeng
通讯作者地址:[Wang, H] School of Qilu Transportation, Shandong University, No.17923, Jingshi Road, China;
来源:Measurement: Journal of the International Measurement Confederation
出版年:2020
卷:154
DOI:10.1016/j.measurement.2020.107496
关键词:Axial and circumferential deformation; Gas-solid coupling; Gassy coal; High-precision; Permeability; User-friendly
摘要:The calculation method of coal seam gas permeability is the key starting point for studying a series of mine safety issues. However, the existing apparatuses are complex in operation, inconvenient in sample replacement, single in function, inaccurate in deformation measurement and poor in sealing effect. In this paper, a high-precision and user-friendly triaxial apparatus is developed. The apparatus consists of triaxial pressure and deformation measurement unit, gas filling and control unit, hydraulic loading unit and flow control and acquisition unit. The apparatus has excellent sealing performance and can accurately measure the axial and circumferential deformation of the sample simultaneously. In addition, the apparatus is user-friendly and integrated with the rapid replacement of the sample module. The permeability test of gassy coal in the whole process of deformation and failure is carried out and the results are consistent with previous research results, which proves the validity and reliability of the apparatus. © 2020
收录类别:EI;SCOPUS
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85078507049&doi=10.1016%2fj.measurement.2020.107496&partnerID=40&md5=9a81f40f6d141161ca087f079b457a0e
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