By studying the process of closed-loop coal mine safety hazard management personally, it has been found that the careless hazard information management mode which is used in a traditional way exists lots of defects on different levels. In order to manage the hazard information rapidly and accurately, a system based on B/S structure mode, which makes fully use of lots of computer technologies such as Microsoft .NET platform, SQL Server 2008, C# and so on, has been designed. It has been acknowledged that the system based on B/S structure mode can make it easy to maintain, meanwhile, has a good compatibility, superior data processing ability and a strong security.
In order to study the creep properties of coal or rock containing gas, the creep properties of coal or rock without gas were studied firstly. Through analyzing the previous creep experiment results of coal or rock, one nonlinear damage creep model of coal or rock was founded based on the general Kelvin model. In this model, assumed that the damage is a function of stress level and time, and introduced one nonlinear hardened function into the general Kelvin model, the nonlinear damage fading creep equation and the nonlinear damage creep whole process equation were obtained. Besides this model, considering the composite structure of coal or rock, gas and gas absorption layer, and assuming that this structure has the stick-slip property under the outside load, so a stick-slip module was added in the general Kelvin model and a new nonlinear damage creep model of coal or rock containing gas was founded. Given the value of the material parameters in the two equations, the creep curves varied with the time were drawn under different axial compression. Through the theoretical curves, the nonlinear damage creep model in this paper was proved to be rational.
In the process of coal production in China, people's unsafe behaviour is the main factor in the system safety. Therefore, the key work in the safety management of coal mine enterprises is reducing or eliminating the unsafe behaviour of people. To solve the injury problems of coal mine enterprises and achieve intrinsic safety, we must carry out effective safety training and management so that employees can transform from the "want me to safety" to "I want safety", make safety management active in coal mine production and achieve fundamental safe production. How to train the ability of "independent safety" should be said that a new direction, the traditional way often emphasis on instilling knowledge and skills training. To stimulate employees' awareness of "I want safety" is still a difficult problem which has no system method and theory yet. This paper aims to study these questions and try to provide some new methods and ideas to improve coal mine safety training.
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