scholarly journals Support System Design for Deep Coal Mining by Numerical Modeling and a Case Study

2021 ◽  
Author(s):  
Shankar Vikram ◽  
Dheeraj Kumar ◽  
Duvvuri Satya Subrahmanyam
Keyword(s):  
Numerical Modeling ◽  
Boundary Conditions ◽  
System Design ◽  
Coal Mining ◽  
Support System ◽  
Modeling Technique ◽  
Mine Design ◽  
Godavari Valley

Importance of numerical modeling in mine design gained pace after modern way of approach took birth through many variants. Methods such as Continuum and Discontinuum emerge as most effective in resolving certain issues. Cases such as heterogeneity, prevailing boundary conditions in continuum case and presence of discontinuities in other have provided solutions for many causes. A suitable support system is designed for deep virgin coal mining blocks of Godavari Valley Coalfield in India. This analysis is carried out using numerical modeling technique. The results show that the stresses at an angle to the level galleries are adverse. The level gallery/dip-raise may be oriented at 200 to 400 to reduce roof problems.

scholarly journals Designing A New Suitable Support System for Deep Virgin Coal Mining Blocks of Godavari Valley Coalfield

2021 ◽  
Author(s):  
Vikram Shankar ◽  
Dheeraj Kumar ◽  
Duvvuri Satya Subrahmanyam
Keyword(s):  
Stress State ◽  
Numerical Analysis ◽  
Coal Mining ◽  
Support System ◽  
Three Dimensional ◽  
Hazard Mapping ◽  
Mine Design ◽  
Analysis Study ◽  
Sophisticated Method ◽  
Godavari Valley

Abstract Importance of support system in mine design gained pace after modern way of approach took birth through many variants. A suitable support system is designed for deep virgin coal mining blocks of Godavari valley coalfield in India. This is achieved by measuring stress state by sophisticated method followed by geotechnical hazard mapping for identifying potential roof instability, predict hazards in advance and integrating the above parameters for analyze effects on stress due to different mining geometries by using numerical modelling technique. The three-dimensional numerical analysis study pours much light on effects causing instability than the 2D program. The results show that the stresses at an angle to the Level galleries are adverse. The level gallery/dip-raise may be oriented at 200 to 400 to reduce roof problems.

Numerical modeling of an umbrella arch as a pre-support system in difficult geological conditions: a case study

2015 ◽  
Vol 75 (1) ◽  
pp. 211-221 ◽  
Author(s):  
Ayub Elyasi ◽  
Mohammad Javadi ◽  
Taher Moradi ◽  
Javad Moharrami ◽  
Saeid Parnian ◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Support System ◽  
Geological Conditions ◽  
Umbrella Arch

scholarly journals Analysis of support system for a conveyance tunnel in the higher Himalayan zone: A case study on Upper Tamakoshi HEP, Nepal

2021 ◽  
Vol 4 (1) ◽  
pp. 90-97
Author(s):  
Kalyan Paudyal
Keyword(s):  
Numerical Modeling ◽  
Stress Concentration ◽  
Support System ◽  
Empirical Method ◽  
Vital Role ◽  
Site Specific ◽  
Specific Data ◽  
Overburden Thickness ◽  
The Stability

After excavation, insitu stress conditions are changed which lead deformation due to the stress concentration. For the stability in the excavated tunnel profile, appropriate support system is essential. To recommend the support system, site specific data are used from Higher Himalayan Region of Nepal. Study is focused on 3 m and 6 m size inverted D Shaped tunnel with three different overburden thickness. For the analysis of support system: Empirical method, Analytical method and Numerical Modeling are performed. Result obtained from the different approaches for three different overburden heights as well as for both size tunnels are compared and finally required support system is recommended. It was found significant change in deformations while increase in size of tunnel. Overburden thickness is also playing the vital role in this parameter but size effect is more prominent.

Cyberphysical Design Automation Framework for Knowledge-based Engineering

2013 ◽  
Vol 1 (1) ◽  
pp. 158-178
Author(s):  
Urcun John Tanik
Keyword(s):  
System Design ◽  
Design Process ◽  
Design Automation ◽  
Design Theory ◽  
Knowledge Bases ◽  
Knowledge Based ◽  
Knowledge Based Engineering ◽  
Cyberphysical System ◽  
Automation Framework

Cyberphysical system design automation utilizing knowledge based engineering techniques with globally networked knowledge bases can tremendously improve the design process for emerging systems. Our goal is to develop a comprehensive architectural framework to improve the design process for cyberphysical systems (CPS) and implement a case study with Axiomatic Design Solutions Inc. to develop next generation toolsets utilizing knowledge-based engineering (KBE) systems adapted to multiple domains in the field of CPS design automation. The Cyberphysical System Design Automation Framework (CPSDAF) will be based on advances in CPS design theory based on current research and knowledge collected from global sources automatically via Semantic Web Services. A case study utilizing STEM students is discussed.

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