Key Laboratory of High Efficiency Mining and Safety for Metal Mines Ministry of Education

Beijing, China

Key Laboratory of High Efficiency Mining and Safety for Metal Mines Ministry of Education

Beijing, China

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Li C.-P.,University of Science and Technology Beijing | Li C.-P.,Key Laboratory of High Efficiency Mining and Safety for Metal Mines Ministry of Education | Li Z.-X.,University of Science and Technology Beijing | Li Z.-X.,Key Laboratory of High Efficiency Mining and Safety for Metal Mines Ministry of Education | And 8 more authors.
Beijing Keji Daxue Xuebao/Journal of University of Science and Technology Beijing | Year: 2013

The architecture of three-dimensional dynamic simulation models for water inrush processes in underground mines was proposed by analyzing the influencing factors of spatial and temporal changes when water inrushes spread in roadways. A roadway space network system was developed through data modeling and regularization, transformation from arc lanes to straight lanes, and three-dimensional network processing of roadways. The path network of water inrush flowing through roadways was formed based on the path algorithm of water spreading downward and upward. The spread speed and time of water inrushes were resolved in combination with the hydraulic characteristics of water inrush flowing. In such a way, a three-dimensional dynamic simulation model was established which can simulate the spatial and temporal dynamics of water spread processes. A typical mine in China was exemplified to verify the feasibility and effectiveness of the established model.


Song B.,University of Science and Technology Beijing | Song B.,Key Laboratory of High Efficiency Mining and Safety for Metal Mines Ministry of Education | Yi Y.,University of Science and Technology Beijing | Yi Y.,Key Laboratory of High Efficiency Mining and Safety for Metal Mines Ministry of Education | And 3 more authors.
Beijing Keji Daxue Xuebao/Journal of University of Science and Technology Beijing | Year: 2013

A denitration project in Zhejiang Huaneng Yuhuan Power Plant in China was taken as the research object, and the finite element method was used to simulate elastic properties in small deformation and large deformation. The mechanical properties of the flue in practical load were studied, and the influence of the flue length on the stress and deformation were discussed. It is found that because of considering large deformation effect, the equivalent stress of the flue is well-distributed, and its values decrease by 5% to 50%. The influence of the change in flue length on the stress is less than 20%. At last, monitoring was used to show the reliability of numerical simulation.

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