A multivariate matrix model of analysing mine water bursting and its application

2018 ◽  
Vol 123 ◽  
pp. 20-26 ◽  
Author(s):  
Qingliang Chang ◽  
Xikui Sun ◽  
Huaqiang Zhou ◽  
Xianyuan Shi
Keyword(s):  
Matrix Model ◽  
Mine Water ◽  
Water Bursting

Discrimination of Mine Water Bursting Source Based on Fuzzy System

2012 ◽  
Vol 182-183 ◽  
pp. 644-648
Author(s):  
Wei Feng Yang ◽  
Ding Yi Shen ◽  
Yu Bing Ji ◽  
Yi Wang
Keyword(s):  
Coal Mine ◽  
Mine Water ◽  
Fuzzy System ◽  
Comprehensive Evaluation ◽  
Water Inrush ◽  
Fuzzy Comprehensive Evaluation ◽  
Mining Area ◽  
Shanxi Province ◽  
Estimation Model ◽  
Water Bursting

Through applying the background values of aquifer derived from fuzzy clustering analysis, a fuzzy comprehensive estimation model was developed for quick recognition of mine water inrush. Based on the hydrological-chemical analysis data of water samples which water bursting sources were known in Liliu mining area, Shanxi province, this paper presented that the hydrological-chemical characters of different aquifer was different, and established a sort of fuzzy comprehensive evaluation models of discriminating coal mine water bursting sources in Liliu mining area. Applied to a production mine, the correct rate of water bursting source judged results by various methods was more than 70%. With the dispersion method and the method extracted from stepwise discrimination analysis to determine the membership degree and Model 3 the type determined by various factors, the correct rate of water bursting source with comprehensive evaluation of combination of two methods was higher respectively 94.5% and 93.3%. The fuzzy system can efficiently and accurately discriminate the resource of water inrush for an unknown sample, and provide the decision basis for the safety production of the coal mine.

Research on the optimal escape path algorithm in mine water bursting disaster

2018 ◽  
Vol 18 (1) ◽  
pp. 229-246
Author(s):  
Lili Dong ◽  
Honglei Zhang ◽  
Xiang Zhang ◽  
Na Ye
Keyword(s):  
Mine Water ◽  
Water Bursting ◽  
Escape Path

Study on Experimental Simulation of Rocks under Hydraulic Fracturing

2012 ◽  
Vol 459 ◽  
pp. 252-256
Author(s):  
Zhi Qiang Kang ◽  
Yu Bo Jia ◽  
Run Sheng Wang
Keyword(s):  
Hydraulic Fracturing ◽  
Mine Water ◽  
Water Pressure ◽  
Rock Fracture ◽  
Experimental Results ◽  
Experimental Simulation ◽  
Rock Fracturing ◽  
Deep Mining ◽  
Vertical Loading ◽  
Water Bursting

In order to further research the expansion of cracks in the rock during hydraulic fracturing, this paper theoretically analyzes the stress state of wall cracks. According to the effective stress criterion of Terzgahi, it gives the mechanical condition of the rock crack expansion. By Moore-coulomb's law, it analyzes the influence of the water pressure in the pores of space wall on the rock fracturing. On this basis, the hydraulic rock fracturing is applied to build physical experiment model of deep mining mine water bursting. By the methodology of combining the analysis of experimental results and theoretical analysis, it analyzes the change of water injection pressure in the hole with rock fracturing and the stress strain relations during rock’s uniform displacement change and loading. The experimental results show that in the process of the water pressure and vertical loading, the increasing fracture load on the rock, constantly produces, expands the cracks and fractures to instability; the mutual influence of water and pressure comes to be the major problem of deep mining rock fracture and mine water bursting.

Toward a relational matrix model of avatar-mediated interactions.

2019 ◽  
Vol 8 (3) ◽  
pp. 287-295 ◽  
Author(s):  
Jaime Banks ◽  
Caleb T. Carr
Keyword(s):  
Matrix Model

Wheal Jane mine water active treatment plant - design, construction and operation

2003 ◽  
Vol 11 (2) ◽  
pp. 245-252 ◽  
Author(s):  
Richard Coulton ◽  
Chris Bullen ◽  
John Dolan ◽  
Clive Hallett ◽  
Jim Wright ◽  
...  
Keyword(s):  
Active Treatment ◽  
Mine Water ◽  
Treatment Plant ◽  
Plant Design ◽  
Design Construction

Mine water as a resource: space heating and cooling via use of heat pumps

2003 ◽  
Vol 11 (2) ◽  
pp. 191-198 ◽  
Author(s):  
David Banks ◽  
Helge Skarphagen ◽  
Robin Wiltshire ◽  
Chris Jessop
Keyword(s):  
Mine Water ◽  
Heat Pumps ◽  
Space Heating ◽  
Heating And Cooling ◽  
Resource Space

Developing the basis of the matrix model of the regional innovation subsystem

2020 ◽  
Vol 18 (11) ◽  
pp. 2183-2204
Author(s):  
E.I. Moskvitina
Keyword(s):  
Russian Federation ◽  
Matrix Model ◽  
Federal District ◽  
Assessment Method ◽  
Expert Assessment ◽  
Regional Innovation ◽  
Regional Strategies ◽  
Analysis And Synthesis ◽  
The Matrix ◽  
The Russian Federation

Subject. This article deals with the issues related to the formation and implementation of the innovation capacity of the Russian Federation subjects. Objectives. The article aims to develop the organizational and methodological foundations for the formation of a model of the regional innovation subsystem. Methods. For the study, I used the methods of analysis and synthesis, economics and statistics analysis, and the expert assessment method. Results. The article presents a developed basis of the regional innovation subsystem matrix model. It helps determine the relationship between the subjects and the parameters of the regional innovation subsystem. To evaluate the indicators characterizing the selected parameters, the Volga Federal District regions are considered as a case study. The article defines the process of reconciliation of interests between the subjects of regional innovation. Conclusions. The results obtained can be used by regional executive bodies when developing regional strategies for the socio-economic advancement of the Russian Federation subjects.

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