Economic Assessment of Methods of Coal and Gas Outburst Prevention in the Extraction of Coalfaces

Abstract

In this paper, the authors focused on the assessment of the individual methods to prevent coal and gas outbursts. The first part deals with a characteristic of this anomalous phenomenon and some basic methods of coal and gas outburst prevention. The second part presents the economic assessment of the costs necessary to ensure the possible prevention methods in the coalface 080 211 in the locality of the Paskov Mine, Mining Plant 3, OKD as, Czech Republic. In this coalface, a simulation method was used for calculating costs for the drift length of 100 m for the use of various prevention methods (irrigation, relief boreholes, relief blasting). The results show the cost of preventive measures during mining intended to eliminate and protect against the formation of coal and gas outbursts. The measures are compared applying the principle of the decision analysis. Four criteria are used for the mutual comparison of the methods (costs, effort, efficiency, time consumption). The comparison has shown that the optimal method to prevent coal and gas outbursts is irrigation.

Field Testing of the Methods for Prevention and Control of Coal and Gas Outburst – A Case Study in Poland

“…gasogeodymanic phenomena such as rock bursts, and coal & gas outbursts have been reported in the worldwide underground mines for more than 150 years in at least 21 countries: China, russia, Australia, France, ukraine, Poland, Belgium, Japan, and turkey [6,7,[15][16][17][18][19][22][23][24][25][26][27][28][29][30]. From 1894 to 2014, 497 coal and gas outbursts occurred in the Czech republic [22,[31][32][33].…”

“…gasogeodymanic phenomena such as rock bursts, and coal & gas outbursts have been reported in the worldwide underground mines for more than 150 years in at least 21 countries: China, russia, Australia, France, ukraine, Poland, Belgium, Japan, and turkey [6,7,[15][16][17][18][19][22][23][24][25][26][27][28][29][30]. From 1894 to 2014, 497 coal and gas outbursts occurred in the Czech republic [22,[31][32][33]. the most disastrous coal and gas outburst in the world occurred in the kozlu coal mine, in the zonguldak Coal basin, turkey, on March 3, 1992, at a depth of 560 m. the outburst caused [8,12,18,[36][37][38].…”

Study of Key Technology of Gob-Side Entry Retention in a High Gas Outburst Coal Seam in the Karst Mountain Area

“…In addition, high gas mines are widely distributed in China and around the world [21][22][23]. To explore the applicability of the GERRC technology to high gas mines, the haulage roadway of the 39114 working face in the Honglin Coal Mine of Guizhou Province was taken as the research background.…”

Advanced Computational Methods for Mitigating Shock and Vibration Hazards in Deep Mines Gas Outburst Prediction Using SVM Optimized by Grey Relational Analysis and APSO Algorithm

“…In recent years, with the extension of coal mining level and the increase of mining depth, gas outburst has had an increasing impact on safe production of coal mines. Gas outburst threatens the lives of coal miners and also causes huge economic losses to the country [1][2][3]. For a long time, the study of gas outburst prediction has been a hot topic for researchers.…”