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Numerical Simulation Study of Variable-Mass Permeation of the Broken Rock Mass under Different Cementation Degrees
المؤلفون المشاركون
Li, Chong
Yao, Banghua
Ma, Qingqing
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-8، 8ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-09-30
دولة النشر
مصر
عدد الصفحات
8
التخصصات الرئيسية
الملخص EN
In order to analyze variable-mass permeation characteristics of broken rock mass under different cementation conditions and reveal the water inrush mechanism of geological structures containing broken rock masses like karst collapse pillars (KCPs) in the coal mine, the EDEM-FLUENT coupling simulation system was used to implement a numerical simulation study of variable-mass permeation of broken rock mass under different cementation conditions and time-dependent change laws of parameters like porosity, permeability, and mass loss rate of broken rock specimens under the erosion effect were obtained.
Study results show that (1) permeability change of broken rock specimens under the particle migration effect can be divided into three phases, namely, the slow-changing seepage phase, sudden-changing seepage phase, and steady seepage phase.
(2) Specimen fillings continuously migrate and run off under the water erosion effect, porosity and permeability rapidly increase and then tend to be stable, and the mass loss rate firstly rapidly increases and then gradually decreases.
(3) Cementation degree has an important effect on permeability of broken rock mass.
As cementing force of the specimen is enhanced, its maximum mass loss rate, mass loss, porosity, and permeability all continuously decrease.
The study approach and results not only help enhance coal mining operations safety by better understanding KCP water inrush risks.
It can also be extended to other engineering applications such as backfill paste piping and tailing dam erosion.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Li, Chong& Yao, Banghua& Ma, Qingqing. 2018. Numerical Simulation Study of Variable-Mass Permeation of the Broken Rock Mass under Different Cementation Degrees. Advances in Civil Engineering،Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1115861
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Li, Chong…[et al.]. Numerical Simulation Study of Variable-Mass Permeation of the Broken Rock Mass under Different Cementation Degrees. Advances in Civil Engineering No. 2018 (2018), pp.1-8.
https://search.emarefa.net/detail/BIM-1115861
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Li, Chong& Yao, Banghua& Ma, Qingqing. Numerical Simulation Study of Variable-Mass Permeation of the Broken Rock Mass under Different Cementation Degrees. Advances in Civil Engineering. 2018. Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1115861
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1115861
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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