Experimental Study on the Permeability of Weakly Cemented Rock under Different Stress States in Triaxial Compression Tests
المؤلفون المشاركون
Fan, Gangwei
Zhang, Chengguo
Chen, Mingwei
Zhang, Dongsheng
Wang, Zhen
Zhang, Shizhong
Li, Qizhen
Cao, Bobo
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-9، 9ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-10-23
دولة النشر
مصر
عدد الصفحات
9
التخصصات الرئيسية
الملخص EN
Mudstone and shaly coarse sandstone samples of Jurassic units in northwestern China were collected to study the seepage mechanism of weakly cemented rock affected by underground mining operations.
Samples were studied using seepage experiments under triaxial compression considering two processes: complete stress-strain and postpeak loading and unloading.
The results show that permeability variations closely correspond to deviatoric stress-axial strain during the process of complete stress-strain.
The initial permeability is 7 times its minimum, contrasting with lesser differentials of initial, peak, and residual permeability.
The magnitude of permeability ranges from 10−17 to 10−19 m2, representing a stable water-resisting property, and is 1 to 2 orders lower in mudstone than that in shaly coarse sandstone, indicating that the water-resisting property of the mudstone is much better than that of the shaly coarse sandstone.
Permeability is negatively correlated with the confining pressure.
In response to this pressure, the permeability change in mudstone is faster than that in shaly coarse sandstone during the process of postpeak loading and unloading.
Weakly cemented rock has lower permeability according to the comparison with congeneric ordinary rocks.
This distinction is more remarkable in terms of the initial permeability.
Analyses based on scanning electron microscope (SEM) observations and mineral composition indicate that the samples are rich in clay minerals such as montmorillonite and kaolin, whose inherent properties of hydroexpansiveness and hydrosliming can be considered the dominant factors contributing to the seepage properties of weakly cemented rock with low permeability.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Fan, Gangwei& Chen, Mingwei& Zhang, Dongsheng& Wang, Zhen& Zhang, Shizhong& Zhang, Chengguo…[et al.]. 2018. Experimental Study on the Permeability of Weakly Cemented Rock under Different Stress States in Triaxial Compression Tests. Geofluids،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1158725
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Fan, Gangwei…[et al.]. Experimental Study on the Permeability of Weakly Cemented Rock under Different Stress States in Triaxial Compression Tests. Geofluids No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1158725
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Fan, Gangwei& Chen, Mingwei& Zhang, Dongsheng& Wang, Zhen& Zhang, Shizhong& Zhang, Chengguo…[et al.]. Experimental Study on the Permeability of Weakly Cemented Rock under Different Stress States in Triaxial Compression Tests. Geofluids. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1158725
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1158725
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر