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Analysis of Resistivity Anisotropy of Loaded Coal Samples
المؤلفون المشاركون
Li, Xiangchun
An, Zhenxing
Zhang, Qi
Chen, Xiaolong
Ye, Xinwei
Jia, Suye
المصدر
Advances in Materials Science and Engineering
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-13، 13ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-06-04
دولة النشر
مصر
عدد الصفحات
13
الملخص EN
In this paper, an experimental study of the variation of resistivity of coal samples in different bedding directions at 1 MHz frequency was performed by establishing an experimental system for resistivity testing of coal under triaxial stress.
The low-pressure nitrogen gas adsorption (LP-N2GA) experiment and scanning electron microscopy (SEM) were obtained to analyze the pore-fracture structural characteristics of coal samples and the influence on resistivity anisotropy.
Furthermore, the fundamental cause of anisotropy of coal resistivity is expounded systematically.
The results show that the resistivity of loaded coal decreased first before increasing.
The ionic conductance and the high degree of metamorphism slow down the decrease of resistivity.
The distribution of pore and fracture structures is anisotropic.
The connected pores and fractures are mainly distributed along the parallel bedding direction.
The weak plane of bedding, diagenetic fractures, and plane fracture structures of parallel bedding result in the increase of fractures in the direction of vertical bedding, so increasing the potential barrier.
Therefore, the resistivity in the vertical bedding direction is higher than that of the parallel bedding.
Loading coal resistivity anisotropy degree is a dynamic change trend; the load increases anisotropy significantly under axial pressure, and the degree of anisotropy has a higher discreteness under confining pressure.
It is mainly the randomness of the internal pore-fracture compaction, closure, and development of the heterogeneous coal under the confining pressure; the more rapid the decline in this stage, the larger the stress damage degree.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Li, Xiangchun& An, Zhenxing& Zhang, Qi& Chen, Xiaolong& Ye, Xinwei& Jia, Suye. 2020. Analysis of Resistivity Anisotropy of Loaded Coal Samples. Advances in Materials Science and Engineering،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1129502
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Li, Xiangchun…[et al.]. Analysis of Resistivity Anisotropy of Loaded Coal Samples. Advances in Materials Science and Engineering No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1129502
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Li, Xiangchun& An, Zhenxing& Zhang, Qi& Chen, Xiaolong& Ye, Xinwei& Jia, Suye. Analysis of Resistivity Anisotropy of Loaded Coal Samples. Advances in Materials Science and Engineering. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1129502
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1129502
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
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