On the one hand, vigorous development of the logistics industry releases a huge profit margins, on the other hand, the logistics cost of the coal industry has been living in the forefront of the industry. Faced with this situation the article will explore, the original material management of coal enterprises sector stripped out to establish third-party logistics companies as a new value-added point is feasibly, and put forward a third-party logistics enterprise development strategy.

According to the present situation of coal production and the development of ZigBee technology, design the node for linkage alarm system of coal mine gas. The node can work independently to detect gas concentration of surrounding environment, once the gas concentration exceeds the default safe value it will notice the other nodes through a wireless network and sent out acousto-optic alarm to let all staff move out. The experiment confirms that the node works stability, ease of installation, low power consumption, and network performance is reliable, very applicable to the field of coal mine safety.

As Steel fiber reinforced concrete injection support technology being used in main shaft inset of -641m level in Liudian Coal Mine, roadway support strength reaches design requirements, there are no roadway deformation and pulp skin cracking. Also, cost is reduced significantly, construction period is shortened and production safety is insured. Which obtained good Social and economic benefits and plays promote effect to reform of coal mine roadway support technology.

In order to reveal the inherent mechanism and patterns of rock and ground movement， enrich and develop the theory of mining subsidence. After analyzing the characteristics of Zhaogezhuang coal mining，Piershen Ⅲ function model was proposed, it has the second development for Matlab graphics and data analysis functions by Simpson numerical integration through the principle of least squares method, Selected examples of using this model to fit and have the theoretical prediction, as well as the model testing, arrive at the corresponding rock movement parameters. Following it analysis characteristics of ground movement and deformation and the special nature of mining damage, these features is an important guiding significance and practical value for study on laws of mining ground movement and deformation.

Expatiate on qualification of surface water and groundwater and mine water of Shendong orefield.Through water-rich coefficient established the correlation between the mining of coal mine production and the inflow of mine water.And dope out the inflow of mine water in 12 years of future.Through filling coefficient calculated seeper of mined-out area, Evaluated mine water ,the potential for the exploitation and utilization of mine water were analyzed, Scientific and rational development and utilization of mine water,It is important ways to Solve Shortage of Water Resources.

The engineering geological condition and geological structure development of LIU Dian-GENG Huang roadway site were introduced, and influence of fault zone soft rock for roadway engineering construction has been analyzed. The analysis results showed that the largest non-balanced force would be not convergent when the roadway through fault zones；The maximum displacement of surrounding rock was 105 mm and reached the plastic zone failure. Which offer an important reference to analysis the feasibility of construction of the roadway engineering.

Based on one coal mine which almost depletes the coal, this paper combines the geological structure of this coal mine and uses the existing production system to design the reasonable exploitation of the protective pillar in the industrial square, argue the mining safety factor, and analyze and estimate the influence on the main production system of the coal mine which is raised by local exploitation of protective coal pillar in the industrial square. And the aim is not only that the existing production systems can work safely, but also more coal could be got in the industrial square. This study has important economic value to the exploitation of the limited mineral resources. And on the sustainable development of the coal mine, this study is also of great significance.

The application of the dynamic information support design method is introduced. The case is based on the support design of excavations at the underground station near the goaf in Suguang coal mine, Fenxi mining group Co. It has been proved by the in situ application of this design method underground, the dynamic information support design method can control the soft roof and reduce the deformation of the roadway. The application of the dynamic information design method in Shuguang mine can provide useful experiences to other similar design project in underground conditions.

The research indicated that the development of tectonic coal is necessary condition of gas and coal outburst occurred. This paper makes a comprehensive analysis of the distribution and development of C13-1 Coal seam tectonic soft coal on Pansan mine using well logging curve combined with expose of the coal seam, and found out the distribution characteristics of tectonic soft coal of Pansan mine. The results of study show that coal bedding-slip fold caused by north-south overthrusting played the main control role in the tectonic soft coal distribution and development of C13-1 Coal seam on Pansan mine, the main reason why local tectonic soft coal was thickened is the fault structure and the overlap structure where fault and fold meet. Understanding of these influence factors provides the foundation for outburst hazard region division.

In many national institutes and manufacturing enterprises, a large number of auto-centralize devices are used in the test equipment, But it has not been very good at linking the settlement of the factors measured, to a large extent, restricts the improvement of the quality of products and measurement products industry Supervision. For the implementation of high-precision auto-centralize . To improve the link and avoid the impact of the manual test results,design a set of high-precision auto-centralize equipment based on digital image processing technology ,and use the edge detection algorithm to determine precise location of the image. the realization of this device,solved the problem of auto-centralize about many detection devices, raising the efficiency of detection devices effectively.

This paper carefully study and analyzes the reason of the temperature increment in the process of gas pump work.With the actual situation of how the gas pump work to develop a new type of cooling device, and represents the principle of how the new type cooling device works. The cooling device works successfully on the making the high temperature down during the process of gas pump works,and ensure the normal operation of gas pump.

Since the water pressure test in drill hole is an effective approach to the study of permeability of rock mass, the theories about the conventional water pressure test, three-section water pressure test and cross-hole water pressure test are described. Subsequently, the insufficiencies of current researches are summarized. It is pointed out that the field test be further improved for the good accuracy and simplified theoretical formula. The developing direction of water pressure test theories and methods in future is put forward.

Father and program subsidence area caused by mining is an important task for mines. The paper introduced the composing and main function of the decision-making support system for subsidence area father in huai-nan mine briefly. Based on the actual condition of huai-nan mine, the guarantee measures to keep the precision of the support system have been put forward. The measured data showed that the calculation result of the support system is reliable, which can satisfy the requirement of decision-making support. At last, the subsidence condition of pan-xie mine have been calculated by the support system and the result will give some supports for the future layout of subsidence area father.

The physical characteristics of the rock mass in the soft rock roadway is analyzed by means of researched the repair engineering of the rock roadway in the Hebi Fifth Coal Mine. Three dimensional finite difference code FLAC3D was utilized to reappear the failure process of the soft rock roadway with the former supporting method and the deformation and failure mechanism of the roadway in the cracked surrounding rock mass was studied and the main factors affecting the stability were obtained. In the end, this paper provided the stability control strategy for the soft rock roadway at great depth—integrated coupling support technology. The application in the engineering show that this method can control the stability of the deep roadway effectively, which supplied the theoretical and practical foundation for the safe production and sustainable development in deep mining.

Based on the joint-mining of the upper layer of residual coal and the entire bottom coal research, consider, as the impact of the upper coal mining and the increase in the thickness of mining at a time when joint-mining, the original roof classification has been unable to guide the production effectively. Therefore, research of roof classification and regularity of mechanical behavior of mine pressure base on joint-mining of the upper layer of the residual coal and the retire bottom coal should be set out. Through theoretical analysis, mechanical model and engineering practice to determine the space partition of immediate roof and main roof under the certain mining condition, and to ascertain the face of the mining behavior under the structure of overlying strata lay in the foundation.

The gas over-limited in mine is an important reason of gas explosion accident, so the gas monitoring is an important protective measure of the gas explosion accident. Aiming at the disadvantages of gas monitoring system in coal mine at present, a monitoring system of methane optical fiber sensor based on the ZigBee wireless network transmission technology is researched. Methane optical fiber sensor has the advantages of fast measuring、good precision and stable. Combined with advanced ZigBee wireless network transmission technology, the system can fast and real-time measure the gas concentration and its distribution in a mine stope. It is great important to analysis the rules of the gas distribution in stope accurately, predict of the gas outburst effectively.

Abstract：The Gas Forecast Technology and the Principle of Artificail Neural Networks were combined, MATLAB neural network toolbox was used to predict gas content of Qian Jiayin Mine in BPmodol. Nine characteristic indexes which influence the gas content were selected, the network was trained using thirteen learning samples, the relation of influence factors and the gas content. The experimental show that the results accorded with the actual Gas Content well，and the neural net can used to predict the gas content exactly.

Through analyzing main problems of underground mine wireless communication system and introducing principle and characteristic of spread spectrum communication, it is pointed out that spread spectrum communication about RAKE receiving technology is comported with underground coal mine, it can reduces the effects of mine environment to communication system, especially it may overcomes some defects caused by multiple-path effect and noise, including feeble anti-interference ability and poor speech quality. A novel RAKE receiver architecture is presented based on signal delay modules, and delay arithmetic is simulated. The simulation results show that effects of multipath fading could be reduced by using RAKE , and BER could be decreased else .

Excessive capacitive current has been the primary problem of the coal mine safety, and how to eliminate the risk of capacitive current power system is also a problem to be solved. This paper analyzes the 6kV coal mine neutral grounding grid. 6kV coal power grids are commonly used by the neutral grounding arc-suppression, discuss several different current arc principles of compensation devices and to analyze its strengths and weaknesses.

Coal mine production safety is concerned by the departments of supervision and production. Faraday FIC8120 is used as image capture and network protocol processing chip, designing an IP-cameras. It’s beneficial to the supervision departments to master the situation of coal production and backup the video real-time and long-range, if the video surveillance is used in coal. The system has a very important significance for promoting the safe production and scientific management of coal.

Analyzed the coal dust samples we collected, mensurated the minimum ignition temperature of coal dust layer and coal dust cloud in different diameter range. The results showed that the minimum ignition temperature of both coal dust layer and coal dust cloud was reduced as the coal dust diameter minished. The minimum ignition temperature of coal dust layer was reduced as the thickness of coal dust layer became thinner. In the same diameter range, the minimum ignition temperature of coal dust layer was lower than coal dust cloud. Analyzed the difference between coal dust layer minimum ignition temperature and coal dust cloud minimum ignition temperature. give some viable suggestions to dust prevention in coal mine.

Based on measuring seam gas pressure actively，this paper analysis influence of efficiency of hole sealing from aspects of the efficiency of pore-forming and viscous of mucus. It must guarantee viscous of mucus reached critical value before the seepage diffusion distance of mucus, that we can ensure the efficiency of measuring seam gas pressure. This paper also transformed the problem to compound suitable viscosity mucus at the size of the fracture is sure. All this can provide theoretical support for library to dispose d suitable viscosity mucus.

The design height of trough-storage loess slope in shanxi Qinneng Coal Preparation Plant is 15.0m, the slope ratio is 1:0.5,It is very difficult to meet the requirements of security and stability when conventional approach is used. This paper attempts to extend the use of drilled compacted pile on the slope soil , based on laboratory soil test and theoretical analysis, it is proved that the stability of the high loess slope have been improved, then anchor and framework for further reinforcement is used with the treated slope. Application examples show that the use of drilled compacted pile to high loess slope can improved soil mechanics characteristic, and combined with the anchor and framework measures, The effect of treatment is a reliable, and easy to construct, to save the project investments, with a certain application prospect and promoted value.

With the advantages of wide application of all kinds of coal, high efficiency of carbon conversion, light environmental pollution, low cost of investment and operating, the gasification characteristic was introduced for HT-L which is the first domestic device with proprietary intellectual property rights. The gasification characteristic was tested by changing the gasification temperature. With the temperature increment, the content of effective gas (H2+CO), CH4 and HCN were decreased, while the content of CO2 increased.

Defective body often exits in the geological body and constitutes a threat to security of the project. Large-scale engineering construction will change the natural geological environment, cause the deterioration of the defective body of some geology and impact on the long-term health of project operation. But we can use the destructiveness of defective body to reduce the high stress area of the coal column, so as to ensure the security of back production of coal column. This text regards holding 3137 working face of the Zhaogezhuang of of Kailuan group as the background of exploiting, adopt the method of combining the theoretical study and numerical simulation, confirm the dangerous area that the coal column exploits; It Utilizes destruction function of defective body to reduce the coal column stress and make 3137 working face be retrieved safely. Meanwhile, this text offers a new method of solving the problem of security back production of coal column in the complicated thick coal seam.

We discussed the properties of coal-bed gas(CBG) reservoir based on the coalfield prospecting, CBG exploration well, development well, production well and the references of coal sample analysis. By comparing and ordering coal petrology of the CBG and parameters of reservoirs, we then divide the Fanzhuang area into Pushi-hudi high concentration CBG, Guxianxiang quasi-high concentration CBG, Fanzhuang relative high concentration CBG and Yaozhuang-huangwang less high concentration CBG.

According to these technical problems of 112201 working face in Meihuajing Coal Mine, including large span open-off cut in working face, silty mudstone roof being prone to degradation and softening in water and the problem of broken roof support, parameter of bolt support technology for large cross-section open-off cut under silty mudstone roof has been defined by test on rock sample of the roof of cut-hole in 112201 working face using X-ray diffraction and research on the influencing factors of the unsteadiness of silty mudstone roof of cut-hole in water. Field practice shows that：Bolt-Beam-Net support technology can solve the support problem of large cross section open-off cut under silty mudstone roof effectively, and can provide technical assurance for the production of fully mechanized coal face safe and efficient.

In order to reduce or avoid the occurrence of coal mine disasters, reduce the risk of coal mine production, protect the safety and health of employees, the model of accident loss prediction for coal mine disasters and the conception of risk management were established. The accident loss predictions of coal mine disasters are an important part of risk management, according to the result of disasters accident loss prediction and classification, based on the risk management puts forward relevant control measures to reduce the risk of accidents.