Coal mining water hazards
Water Channel Mining activities Drainage and emergency measures.
CUG
EVOLUTIONARY Model
Agent-based model of coal water-inrush
Water balance incontrollable
Drainage invalidation
Risk assessment
Prediction
Coal mine water hazards Formation
Prevention
Prevention technique
CUG
EVOLUTIONARY Model
Evolutionary Model of Coal Mine Water Hazards Based on Multi-agent
Chengzhu Gong , Lanlan Li , Kejun Zhu , Yanhui Gao China University of Geosciences, Wuhan 2011-9-30
-Water bursting coefficient 、Vulnerability index method -Critical layer analysis、Fault tree analysis -GIS、DC、TEM & Information fusion analysis
CUG
INTRODUCTION
Deficiency of the traditional method
-Failed to describe the nonlinear dynamic phenomena -Not studied on the view of system science
The creative points of the thesis
-Coal mines are in complex hydro-geological conditions -Extension of coal mining depth -Coal demand constantly increasing
Prevention of coal water-inrush are renewed attention
CUG
INTRODUCTION
Coal mine water hazard cognizance
-Is a complex and adaptive phenomenon -Possess nonlinear dynamic characteristics
Prevention methods of coal water-inrush
Water-inrush principle & Energy accidental release & Human error theory
Unsafe acts
· Drilling · Mining
Unsafe conditions
· Water accumulation · Channels activation
-Solving bycomplex systems theory &methods -Using Agent-based modeling and simulation(ABMS)
CUG
EVOLUTIONARY Model
Formation mechanism of coal water-inrush
Waterheads Agent
Mining activities Agent
Prevention measures
Interaction in population
System boundary
Feedback mechanism
Population evolution
Channels Agent
CUG
CONTENTS
Introduction Evolutionary model of coal mine water hazards Simulation with NetLogo Conclusions
CUG
INTRODUCTION
Coal water-inrush accidents increasing
Unreasonable drainage measures
· Minesump & Equipment overload · Technical defects, Management fault
Incentive
Energy liberation
Abnormal water inflow increase
Agents interactive in the model.
Drainages Agent
CUG
SIMULATION Processes
Simulation platform : NetLogo Parameters setting
-Water sources rank : [0-5] -Channel permeability : [0-1] -Mining activity: #workers*N -Drainage ability: base on water volume -Iterationsism of coal water-inrush
Mining activities Hydrogeology Prevention technique
Incentive Waterhead Channels Drainage
Coal mining water hazards traits
CUG
SIMULATION Processes
Simulation interfaces in NetLogo
Tchwaonndeiml aernesaio、nmalianrineag
is divided into four parts: water area、 activity area & drainage area. Change