Ni X.-H.,Yanzhou Coal Mining Group Co.
Meitan Xuebao/Journal of the China Coal Society | Year: 2010
In order to solve the backwardness of the traditional mine auxiliary transportation technology and equipment which would restrict the construction and development of the safety and high efficient mine, based on the full investigation and in combination with the actual conditions of Yanzhou Mining Area, provided the development plan of the safety and high efficient mine auxiliary transportation technology in Yanzhou Mining Area. On the one hand, the mine (and mining block) development layout was optimized, the arrangement mode of the mine roadway was reformed and the auxiliary transportation system was simplified in order to create the conditions to promote and apply the high efficient auxiliary transportation technology and equipment;On the other hand, the research, development, test and promotion were actively and stably conducted on the key technology of the safety and high efficient mine auxiliary transportation and the development of the auxiliary transportation mechanization was highly promoted. The development plan was applied to Ynazhou Mining Area. The comparison between the statistic data from 2001 to 2009 shows that the safety situation of the mine auxiliary transportation is steadily improved, the personnel members working in the mine auxiliary transportation is annually reduced in the percentage of the raw coal production members, the auxiliary transportation efficiency is obviously improved and the physical power consumption and the time of the walking on the road for the miners is highly reduced.
Huang F.-C.,Yanzhou Coal Mining Group Co.
Meitan Xuebao/Journal of the China Coal Society | Year: 2010
The development course of the fully mechanized top coal caving mining technology in Yanzhou mining area was briefly stated from the three stages. The three stages were including the experiment and promotion stage (from 1992 to 1994), the well improvement stage (from 1995 to 1998) and the innovation development stage (from 1999 to today). Ten main technical achievements and the matched equipment features obtained from the development process of the fully mechanized top coal caving mining technology were expounded in detail. Finally the future development orientation of the fully mechanized top coal caving mining in Yanzhou mining area was provided. (1) The innovation research on the applied technology of the fully mechanized top coal caving mining shall be further conducted, the experts system of the fully mechanized top coal caving mining shall be improved, the decision-making scientification of the management system could be realized and the application scope of the fully mechanized top coal caving mining technology shall be further expanded. (2) The road of the automation and information shall be insisted in order to further improve the equipment and technology level of the fully mechanized top coal caving mining. (3) The development research on the guarantee technology system of the fully mechanized top coal caving mining shall be enhanced.
Guo X.,China University of Mining and Technology |
Dong C.,Yanzhou Coal Mining Group Co.
Proceedings - 4th International Conference on Genetic and Evolutionary Computing, ICGEC 2010 | Year: 2010
In this paper, based on requirements of wireless Mesh network Multi-service and high speed, Is proposed based on more access control technology and the QoS control technology of new wireless resource allocation methods of the upward, To better solve the uplink bandwidths business concurrently, And both to delay and bandwidth requirements, improving the bandwidth of the system. Finally, simulation results show its performance. © 2010 IEEE.
Pang D.,Shandong University |
Sui Q.,Shandong University |
Jiang M.,Shandong University |
Jiang M.,Yanzhou Coal Mining Group Co.
Zhongguo Jiguang/Chinese Journal of Lasers | Year: 2011
A high temperature fiber Bragg grating (FBG) sensing network based on wavelength modulation is highly developed on the basis of FBG high temperature sensing characters. A new packaged high temperature FBG sensor head is designed in this system. A high reliable distributed sensing network structure is also proposed to overcome the low reliability of the traditional FBG sensing network. Diffraction technique based on InGaAs image sensing is used to demodulate reflected wavelength. The results show that the average goodness-of-fit of sensing system's temperature curve is 0.9991, the sensitivity is 0.0258 nm/°C, the accuracy is ±0.6°C and the response time is less than 16 s. Moreover, the sensing network is steady enough for high temperature measurement.
Wang J.-L.,China University of Mining and Technology |
Li Y.-M.,Yanzhou Coal Mining Group Co. |
Jiang B.,China University of Mining and Technology |
Liu L.,China University of Mining and Technology
Caikuang yu Anquan Gongcheng Xuebao/Journal of Mining and Safety Engineering | Year: 2010
Based on the coupling relationship between structure and in-situ stress, distribution law and formation-evolution model of mine structure were discussed. Using hydraulic fracturing technique and stress relieving method, the value and the direction of in-situ stress in mine field were measured. And combined with finite element numerical simulation method, distribution characteristics of in-situ stress field were summarized. Main influencing factors on in-situ stress field were analyzed. The variation law of in-situ stress field controlled by structure was studied. The coupling relationship between structure and in-situ stress field was discussed. The results show that 1) the structural development regularity is controlled by regional tectonic evolution model; 2) horizontal stress plays a leading role in the study area; 3) the direction of the maximal principal stress is almost NE65°~87° and the difference value between the maximal and the minimal principal stress is small; 4) the distribution of in-situ stress field is controlled by mine structure, so do for the value and the direction of principal stress. At the same time, the distribution pattern of in-situ stress field will promote the tectonic evolution.