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Passive Seismic Structure Imaging of a coal mine by Ambient Noise Seismic Interferometry on a Dense Array

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Acta Geologica Sinica(English Edition) 2021年第S1期95卷 37-39页

作者： GU Ning Michal CHAMARCZUK GAO Ji Michal MALINOWSKI ZHANG Haijiang Laboratory of Seismology and Physics of Earth’s Interior School of Earth and Space ScienceUniversity of Science and Technology of ChinaHefei 230026China Department of Earth and Space Sciences Southern University of Science and TechnologyShenzhen 518055China Institute of Geophysics Polish Academy of Science Warszawa 01-452Poland

Active source seismic method is generally used to image subsurface structures for resource exploration,including oil,gas and *** it can provide highresolution subsurface structures,due to some economic and environmental restrictions,it is not suitable in some *** recent 20 years,passive seismic survey based on ambient noise seismic interferometry(ANSI)has started to be widely used in imaging subsurface *** comparison,ANSI does not need active sources and can image subsurface structures at different depths as a lowcost alternative to active seismic exploration.

关键词： passive seismic imaging ambient noise interferometry coal mine body wave

Research and Application of Embedded Technology in Remote Network Monitoring System of coal mine

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Research and Application of Embedded Technology in Remote Ne...

Characteristics of soil enzymes and the dominant species of repair trees in the reclamation of coal mine area

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作者： Zhang Xiaodong Tan Yuegang Hou Yan School of Mechanical and Electronic Engineering Wuhan University of Technology College of Electrical Engineering Henan University of Technology

ISBN: (纸本)9781479937066

Aiming at the weakness and deficiency of current coal mine monitoring system, this paper discusses the design and implementation of a platform to remotely monitor and control coal mine production processes over Industrial Ethernet by using the embedded technology. Integrated with each lower computer terminal are S3C2410 microprocessors that can be used for connectivity to the monitoring network effectively. Besides the terminal core S3C2410, the hardware circuits of memory module, Ethernet module, USB module, input and output channels, LCD display module, and RS232 serial module are studied and designed. Additionally, Linux-based application software that facilitates remote monitoring and control of lower computer terminals using Qt/embedded has also been developed. The monitoring system presented in this paper can not only meet the requirements of coal mine production process, but also has a wide range of applications in other industrial monitoring fields.

关键词： coal mine Embedded System ARM Monitoring System

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Journal of coal Science & Engineering(China) 2013年第2期19卷 256-261页

作者： Wen-Ying ZHANG Duo-Xi YAO Zhi-Guo ZHANG Qing YANG Kui ZHAO Shi-Kai AN School of Earth and Environment Anhui University of Science and Technology Huainan 232001 China Department of Ecology and Environment Coal Engineering Technology Research Institute Huainan 232001 China

In order to study the soil enzyme content at the mine reclamation area and choose a tree species with superior restoration capabilities, this paper takes Huainan Datong mine as the study area, and five different enzymes under nine tree species as the study subject. The different enzyme activity indexes were measured, and the correlation analysis and the principal component analysis （PCA） method were applied to evaluate and screen the tree species with advanced restoration. The results demonstrate that there are some correlations among the different soil enzymes, including some very significant positive correlations among urease, phosphatase, invertase and protease. The best species in terms of repair is privet, and the worst is Haltong. This study provides a scientific basis for the selection of restoration-capable tree species in the reclamation area of the coal mine.

关键词： reclamation area coal mine soil enzyme correlation analysis principal component analysis

Constructing of wireless emergency communication system for underground coal mine based on WMN technology

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Journal of coal Science & Engineering(China) 2010年第4期16卷 441-448页

作者： YANG Wei ZHANG Yu LIU Yang State Key Laboratory of Rail Traffic Control and Safety Beijing Jiaotong University Beijing 100044 China State Key Laboratory of coal Resources and Safe Mining China University of Mining and Technology Beijing 100044 China

Based on the Wireless Mesh Network (WMN), a wireless emergency communicationsystem for underground coal mine which was designed to be capable of videosurveillance, voice communication, and environment monitoring at the same time *** network architecture of the system was proposed, and its service model,extensible technology, medium access control, routing algorithm, channel allocation andsystem management technologies were analyzed according to the actual rescue requirementsof underground coal mine and the characteristics of underground spatial structureand radio *** relevant theories and key technologies were extracted,which would provide theoretical support for the system development.

关键词： coal mine Wireless Mesh Network (WMN) emergency rescue communication ser- vice model

The main projects and development status of noise forecasting and controlling on working face in coal mine

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Journal of coal Science & Engineering(China) 2010年第2期16卷 198-205页

作者： PENG You-duo GUO Ying-fu WU Li-tao LI Xin XIE Wei-hua Dhillon B S Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment Hunan University of Science and Technology Xiangtan 411201 China Department of Mechanical Engineering of University of Ottawa Canada ON K1N 6N5 Canada

Noise from the machine on coal working face seriously influenced the miners' physical and mental health, and also, due to the noise, there may be a major hidden danger in safety from accidents as all safety warning signals may be masked by the noise. This paper summarized the features of mine environmental noise on working face, such as the variety of noise sources, the continuity of high intensity and slow attenuation in narrow space, *** main projects about noise forecasting and controlling on working face was emphatically expounded;the development status about mines machinery noise mechanism and environmental noise acoustic characteristics of space-time of these main research topics were also introduced.

关键词： coal mine working face environmental noise main projects development status

On the mechanism of coal mine safety monitor based on game analysis

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Journal of coal Science & Engineering(China) 2011年第1期17卷 52-54页

作者： ZHANG Hong-bo School of Energy and Safety Engineering Hunan University of Science ＆ Technology Xiangtan 411201 China

Analyzed the monitor results under current systems concerning game and then pointed out that a way-out to improve chinese coal mine production safety control is to implement system innovation and punish the monitor＇s... 详细信息

关键词： coal mine production safety monitor game

Study of occupation health risk assessment on Chinese coal mine

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Journal of coal Science & Engineering(China) 2007年第4期13卷 415-419页

作者：肖国清颜向农 School of Energy and Safety Engineering Hunan University of Science and Technology Xiangtan 411201 China

Factors of occupation health hazard were identified and analyzed, and indexes system of occupation health risk assessment were established by applying fuzzy theory and system safety technique, the weights of index system were obtained by AHP, finally a reasonable mathematics model of occupation health risk assessment was accomplished by an example.

关键词： occupation health hazard identification risk assessment coal mine

Risk monitoring and early-warning technology of coal mine production

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Journal of coal Science & Engineering(China) 2007年第3期13卷 296-300页

作者：曹庆贵张华刘纪坤刘小荣 Key Laboratory of mine Disaster Prevention and Control Shandong University of Science ＆ Technology Qingdao 266510 China Ningxia coal Industry Group Co. Ltd. Yinchuan 750000 China

This article was written according to the secudty information theory and the secudty cybernetics basic principle, for reducing the accident risk effectively and safeguarding the production safety in coal mine. First, each kind of risk characteristic has carried on the earnest analysis to the coal-mining production process. Then it proposed entire wrap technology system of the risk management and the risk monitoring early warning in the coal-mining production process, and developed the application software-coal mine risk monitoring and the early warning system which runs on the local area network. The coal-mining production risk monitoring and early warning technology system includes risk information gathering, risk identification and management, risk information transmission; saving and analysis, early warning prompt of accident risk, safety dynamic monitoring, and safety control countermeasure and so on. The article specifies implementation method and step of this technology system, and introduces application situations in cooperating mine enterprise, e.g. Xiezhuang coal mine. It may supply the risk management and the accident prevention work of each kind of mine reference.

关键词： coal mine risk monitoring early warning local area network

Efficiently identifying coalbed methane enrichment areas by detecting and locating low-frequency signals in the coal mine

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Geohazard Mechanics 2023年第1期1卷 86-93页

作者： Siyu Miao Guanwen Cheng Haijiang Zhang Yuqi Huang Ning Gu Huasheng Zha Ji Gao Laboratory of Seismology and Earth's Interior School of Earth and Space SciencesUniversity of Science and Technology of China96 Jinzhai RoadHefeiAnhui230026China Mengcheng National Geophysical Observatory University of Science and Technology of ChinaHefeiAnhui230026China Department of Earth and Space Sciences Southern University of Sciences and TechnologyShenzhen518055China Anhui Wantai Geophysical Technology Co.Ltd. HefeiAnhui230026China

Low-frequency signals have been widely found in the conventional oil/gas field and volcanic region as well as during hydraulic fracturing of unconventional oil/gas *** generation mechanism has been ascribed to the flow of gas/fluid in the fractures,which can induce the Krauklis wave around fractures and can further excite low-frequency seismic body wave signals at diffraction ***,it is theoretically feasible to determine the gas/fluid enrichment areas and migration pathways by locating the low-frequency *** we have utilized a surface dense seismic array deployed above the Sijiazhuang coal mine in Shanxi province to detect and locate such low-frequency signals that are dominant in the frequency range of 1.5–4.0 *** migrationbased location method is employed to locate these signals that have low signal to noise *** further compare the distribution of low-frequency signals and coalbed methane concentrations that are estimated based on ambient noise tomography result with the same seismic *** spatial consistency between low-frequency signals and coalbed methane enrichment areas suggests that detecting and locating low-frequency signals with a surface seismic array is an efficient way to identify gas enrichment areas and potential gas migration pathways.

关键词： coalbed methane Enrichment areas Efficiently detecting Low-frequency signals coal mine