Results 41 to 50 of about 12,296 (207)
Large-scale study of the effect of wellbore geometry on integrated reservoir-wellbore flow [PDF]
, 2016 Extraction of coal seam gas (CSG) prior to mining is crucial for reducing the potential risks of gas outburst and explosions during underground coal mining as well as gas production purposes.
Aminossadati, Saiied M. +2 more
core +1 more source
Meikuang AnquanIn order to reveal the evolution law of coal and gas outburst gas-solid particle flow, an analysis method combining field statistical data with numerical simulation data was proposed based on the discrete element numerical simulation method.
Yanlei GUO +5 more
doaj +1 more source
Study on Early Warning System of Coal and Gas Outburst [PDF]
The Open Electrical & Electronic Engineering Journal, 2013 Coal and gas outburst is an extremely complex and serious gas dynamic phenomenon. Therefore, building an early warning system based on computer system, safety monitoring systems of coal mines and local area network is a precondition for effectively preventing coal and gas outburst.
Xiang Lan Liu +2 more
openaire +1 more source
Research status and development trend of mechanism and simulation test of coal and gas outburst
Gong-kuang zidonghua, 2018 Theoretical research status of mechanism of coal and gas outburst was summarized. Typical examples of similar materials of gas-bearing coal and simulation experiment device of coal and gas outburst were analyzed.
LIU Yejiao +5 more
doaj +1 more source
Study of the multi-index coupling forecasting model of coal and gas outburst and its application
工程科学学报, 2018 Coal and gas outburst seriously threatens the safety of underground coal mining. With the increase in coal mining depth, the geological conditions of coal mines become complicated, which adversely affects the safety of coal mining production.
ZHANG You-yi +2 more
doaj +1 more source
Study on the impact force evolution law of coal and gas outburst under high ground stress
Meitan kexue jishu, 2023 With the increase of mining depth and intensity, the dynamic disaster of coal and gas outburst was frequent. The disaster-causing mechanism of impact force has become the main direction of current research.
Jupeng TANG +4 more
doaj +1 more source
Global Climate Change: A Civic Republican Moment for Achieving Broader Changes in Environmental Behavior [PDF]
, 2009 These comments were given by Professor Hope Babcock on April 17, 2008 for the fourteenth annual Lloyd K. Garrison Lecture on Environmental Law at Pace Law School.
Babcock, Hope M.
core +3 more sources
Joint ground and underground gas extraction mode and its key technology for outburst coal seam group
Meitan xuebao, 2023 China’s coal seams are characterized by high ground stress, low permeability, high gas pressure, and high gas content, and their gas outburst hazards are serious. Therefore, some effective gas extraction measures must be taken for coal seams.
Yongjiang ZHANG +5 more
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang +5 more
wiley +1 more source
Energy principle of simulation experiments on coal and gas outburst
Meitan xuebao, 2023 Coal and gas outburst is an extremely destructive gas dynamic disaster in mines. Since such dynamic disasters are usually difficult to observe directly, physical similarity simulation of coal and gas outburst has become an important method for collecting
Yuanping CHENG, Yang LEI, Sijie YANG
doaj +1 more source