نتایج جستجو برای: rock engineering systems res
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یکی از مسایل مهم در حفاری مکانیزه، پیشبینی نرخ پیشروی (Advance Rate) است. شـناخت عوامل تاثیرگذار بر بهرهوری از این نظر حایز اهمیت اسـت که به وسیلهی آن میتوان تخمین دقیقتری از زمانهای توقف و حفاری و در نتیجه هزینههای اجرایی به دست آورد. مدلهای زیادی برای پیشبینی عملکرد TBM توسعه یافتهاند که بسیاری از آنها تنها مدلی برای پیشبینی نرخ نفوذ بوده است. در این مقاله با استفاده از رویکرد سیس...
The presence of methane in coal mines is one of the major problems in underground coal mines. Every year, in underground coal mines, a lot of casualties due to outbursts and explosions of methane gas is occurring. Existence of this gas in the mines not only creates a difficult and dangerous situation for work but also makes it more expensive. The release of this gas to the air causes a further ...
a brief background to the development of the rock engineering design process is given, showing that since the development of the science of mathematics, deterministic methods have been used to perform various calculations. the variability of rock properties and support characteristics have always been known. however, they were not explicitly used in design but compensated for by the use of a sa...
Static deformation modulus is recognized as one of the most important parameters governing the behavior of rock masses. Predictive models for the mechanical properties of rock masses have been used in rock engineering because direct measurement of the properties is difficult due to time and cost constraints. In this method the deformation modulus is estimated indirectly from classification syst...
A brief background to the development of the rock engineering design process is given, showing that since the development of the science of mathematics, deterministic methods have been used to perform various calculations. The variability of rock properties and support characteristics have always been known. However, they were not explicitly used in design but compensated for by the use of a sa...
in this paper, we introduce environmental systems engineering (ese) and describe some of its applications combined with process systems engineering (pse) to problems related to environmental systems. these systems—the water cycle and ecosystem cycles—are complex and highly dynamic, with an uncertainty level comparable to that of chemical systems. to illustrate the challenges of applying pse to...
OPINION article Front. Energy Res., 29 April 2022Sec. Process and Systems Engineering https://doi.org/10.3389/fenrg.2022.901035
OPINION article Front. Energy Res., 19 April 2022Sec. Process and Systems Engineering https://doi.org/10.3389/fenrg.2022.891229
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