Monitoring and control of rock pressure in underground engineering Mine earthquake prevention and control technology induced by old coalmine goafs based on surface isolation grouting

2014 ◽  
pp. 567-572
Keyword(s):  
Rock Pressure ◽  
Prevention And Control ◽  
Control Technology ◽  
Monitoring And Control ◽  
Underground Engineering ◽  
And Control

Prevention and Control Technology Research on Rock Burst of Fully Mechanized Caving Faces and Gob-Side Entry

2013 ◽  
Vol 353-356 ◽  
pp. 303-306
Author(s):  
Zhi Chao Tian ◽  
Long Hao Dong ◽  
Min Ma ◽  
Ye Jiao Liu
Keyword(s):  
Rock Burst ◽  
Coal Mine ◽  
Similar Condition ◽  
Economic Benefit ◽  
Prevention And Control ◽  
Scientific Basis ◽  
Surrounding Rock ◽  
Control Technology ◽  
Technology Research ◽  
And Control

According to the actual monitoring data of mining environment and rock burst happening on the 3511 fully-mechanized workface in Anyuan coal mine, the research of the rock burst on the workface and its surrounding rock of gob-side entry is done and the reasonable supporting scheme is determined. The research results are of great guiding importance to the coal mining that has similar condition, provide scientific basis for the control technology of rock burst on the workface and its gob-side entry as well as the reasonable identification of support parameters on the gob-side tunnel, and supply technology protection in order to accelerate the advancing speed of workface. Finally it can produce larger economic benefit.

scholarly journals Research Status of Pathogenesis of Pneumoconiosis and Dust Control Technology in Mine—A Review

2021 ◽  
Vol 11 (21) ◽  
pp. 10313
Author(s):  
Guoming Liu ◽  
Qianqian Xu ◽  
Jipeng Zhao ◽  
Wen Nie ◽  
Qingkun Guo ◽  
...  
Keyword(s):  
Occupational Health ◽  
Prevention And Control ◽  
Dust Control ◽  
Dust Removal ◽  
Research Progress ◽  
Control Technology ◽  
Dust Suppression ◽  
Efficient Treatment ◽  
Mine Dust ◽  
And Control

Pneumoconiosis has become one of the biggest threats to the occupational health and life safety of mining workers in China. The number of pneumoconiosis cases has continued to rise in recent years. The main task of occupational health development is to study the pathogenesis of pneumoconiosis and to develop mine dust prevention and control technology. Therefore, this paper summarizes the research progress of coal worker pneumoconiosis and dust prevention and control in mines. Firstly, the research progress of coal worker pneumoconiosis is analyzed from the aspects of pathogenesis, animal model and pathological changes of coal worker pneumoconiosis. Then, the existing basic theory and technology of dust prevention are described, including ventilation and dust removal, spray and dust suppression, and chemical dust suppression methods. Finally, based on the dust removal theory of wet shotcrete, the progress of shotcrete dust control technology and equipment used for shotcrete is summarized from the aspects of shotcrete technology process and shotcrete materials. At the same time, in view of the shortcomings of the existing research, the next research prospect is given in the pathogenesis of pneumoconiosis, intelligent dust prevention, jet spraying dust removal and so on. This paper provides theoretical support for realizing the separate source and efficient treatment of mine dust control and helps to improve the clean production level of mine, control and prevent pneumoconiosis.

scholarly journals Impact of control technology on fight against COVID-19

2022 ◽  
Vol 355 ◽  
pp. 02044
Author(s):  
Zihuan Feng ◽  
Xun liang ◽  
Chengzhen Zhao ◽  
Jiachen Wu
Keyword(s):  
Information Management ◽  
Public Management ◽  
Prevention And Control ◽  
System Model ◽  
Control Technology ◽  
Practical Issue ◽  
Key Factors ◽  
Factors Affecting ◽  
Multiple Data ◽  
And Control

Since the outbreak of COVID-19, all countries have taken certain measures to restrain the spread of COVID-19. It is a complex and practical issue to study the measures and effects of the epidemic prevention and control. The spread of the epidemic in different countries has certain characteristics, and the prevention and control models and effects in different countries are also different. In this paper, the key factors affecting the prevention effect of COVID-19 were analyzed by integrating multiple data and using interdisciplinary methods of mathematics, statistics and information management science on the basis of public management, and the system model of influencing factors of COVID-19 was constructed.

Study on Gravel Pack Completion Sand Control Technology in Horizontal Well

2014 ◽  
Vol 675-677 ◽  
pp. 1561-1564
Author(s):  
Hua Long
Keyword(s):  
Prevention And Control ◽  
Horizontal Well ◽  
Technical Problem ◽  
Influence Factors ◽  
Field Tests ◽  
Control Technology ◽  
Sand Control ◽  
Packing Process ◽  
And Control ◽  
Gravel Pack

Screen completion is usually adopted in horizontal wells of heavy oil sandstone reservoir, however, frequent pump inspection even long term shut-off caused by thin sand production of some wells bring serious impact on production. For this reason, the gravel pack completion sand control technology in horizontal well is created on the problem of thin sand prevention and control in horizontal well through study on influence factors and treatment of gravel pack in horizontal well, stimulating test of sand packing process and study on gravel pack string in horizontal well. The technical problem of thin sand prevention and control in horizontal well has been solved with the successful application of the technology in field tests.

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