by combined geophysical methods in a deep laneway of coal
by combined geophysical methods in a deep laneway of coal
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Characteristic of geological anomaly detected by

2009-9-1  The 6th International Conference on Mining Science Technology Characteristic of geological anomaly detected by combined geophysical methods in a deep laneway of coal mine Liu Sheng-donga* Zhang Ping-songb, Cao Yuc, Wang Boa aState Key laboratory of deep geomechanics underground engineering, School of Resource and Earth Science, China University of Mining and Technology,

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Characteristic of geological anomaly detected by

Characteristic of geological anomaly detected by combined geophysical methods in a deep laneway of coal mine September 2009 Procedia Earth and Planetary Science 1(1):936-942

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Characteristic of geological anomaly detected by

2017-1-22  The 6th International Conference on Mining Science Technology Characteristic of geological anomaly detected by combined geophysical methods in a deep laneway of coal mine Liu Sheng-donga*,Zhang Ping-songb, Cao Yuc, Wang Boa aState Key laboratory of deep geomechanics underground engineering, School of Resource and Earth Science, China University of Mining and

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Characteristic of geological anomaly detected by

2009-9-1  Characteristic of geological anomaly detected by combined geophysical methods in a deep laneway of coal mine

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Comprehensive detection analysis on the reason of

Characteristic of geological anomaly detected by combined geophysical methods in a deep laneway of coal mine[ A]. Proceedings of the International Conference on Mining Science and Technology[ C].

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Coal Exploration and Mining Geology - UNESCO

2020-8-18  coal and the degree to which the coal quality varies throughout the deposit, combined with the method of working and the day-to-day extraction schedule, determine the properties of the mine product to be processed, marketed and used. A combination of the geological features also determines the impact of the mine upon the existing

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Combined early warning method for rockburst in a Deep ...

2016-12-8  Monitoring methods Microseismic. As a type of regional monitoring method, MS is widely used to predict various dynamic coal mine disasters, such as rockbursts, gas outbursts, ground water invasion, and roof falls (Lu et al. 2013).The MS monitoring technique records the time, energy, and location of microcracks of rock masses induced by mining or excavation.

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On the strong earthquakes induced by deep coal mining ...

2021-10-20  Abstract Different from the shallow coal seam, in deep mining, the dynamic response of overlying rock has changed significantly due to the high in-situ stresses and complex geological conditions. The frequent occurrence of strong mine earthquakes seriously restricts the safe and efficient mining of deep coal resources. This paper investigates the distribution and evolution of strong mining ...

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combined methods of coal exploitation - leslodges

The U.S. coal industry serves a vital role in the nation's economy by producing fuel for more than half of its electricity. Despite the industry's importance, industry financial data for 2005—the strongest year for the coal industry in recent years—shows that it is a relatively small industry with revenues totaling $20 billion to $25 billion and net income between $1 billion and $2 ...

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On the strong earthquakes induced by deep coal mining ...

2021-10-20  Abstract Different from the shallow coal seam, in deep mining, the dynamic response of overlying rock has changed significantly due to the high in-situ stresses and complex geological conditions. The frequent occurrence of strong mine earthquakes seriously restricts the safe and efficient mining of deep coal resources. This paper investigates the distribution and evolution of strong mining ...

More

Coal Geology Geoscience Australia

2021-11-12  Coal is mined by both surface or ‘opencut’ (or opencast) and underground or ‘deep’ mining methods, depending on the local geology of the deposit. Underground mining currently accounts for about 60 per cent of world coal production but around 80 per cent of

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Evaluation of Coal Body Structures and Their Distributions ...

2021-2-22  The coal body structure is one of the key parameters in the exploration and exploitation of coalbed methane (CBM). Accurate identification of the structure of a coal seam is important for CBM exploration and development. In the present study, we collected coal seam logging data and drilling data from six CBM wells in the Laochang block in eastern Yunnan, China. Four logging curves, including ...

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Coal Exploration and Mining Geology - UNESCO

2020-8-18  coal and the degree to which the coal quality varies throughout the deposit, combined with the method of working and the day-to-day extraction schedule, determine the properties of the mine product to be processed, marketed and used. A combination of the geological features also determines the impact of the mine upon the existing

More

Deep coal seams as a greener energy source: a review ...

1. Introduction. It is a well-known fact that world energy consumption is increasing with the growing population and around 81% of this demand is fulfilled from the fossil fuel sources with oil (32.4%) and coal (27.3%) being the major sources (IEA 2013).However, these sources will remain only for four to five decades, which emphasizes the importance of searching for new energy sources (Che et ...

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A Data Interpretation Method of Coal Seam Sounding and ...

Abstract This paper presents a planar continuous interpretation method of electric sounding data in roadway of coal mines on the basis of the interpretation of seam sounding curve comparison. By this method, the faults and fracture development zones in mining face can be visually displayed. The advantages of this method are faster and more precise than traditional method.

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Prediction of Fractures in Coal Seams with Multi

2019-4-24  With multi-component seismic data, Brodic et al. predicted fracture systems by mode-conversions 28. With the increase in the depth of coal mines, P-wave exploration alone is

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寻找隐伏岩体的新方法:镜质体反射率法

2015-5-23  Explore deep concealed orebody by the application of synthetic methods of geophysical exploration: take polymetallic metallogenic belt in west of Henan province as an example[J]. Gold Science and Technology (in Chinese), 20(6): 21-26.

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Geophysical Applications DMT GROUP

Because our expertise spans a wide range of geophysical methods and we have experience with these methods in a variety of geological settings, we can bring unique solutions to complicated problems using carefully designed and collected multi-method geophysical surveys. Applications: In-Seam Coal Mapping

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基于槽波的TVSP超前探测方法:可行性研究

2017-3-7  TVSP method for reconnaissance beyond coal roadway based on in-seam seismic waves: A feasibility study. Chinese J. Geophys . (in Chinese), 61(9): 3865-3875, doi: 10.6038/cjg2018L0146 .

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Journal Details - CNKI

Journal of China Coal Society, the 1st in the field of mining engineering, promotes the development of coal theory and practice, as well as academic exchanges at home and abroad to accelerate the transformation from scientific research to real productive forces. It is supervised by China Association for Science and Technology and sponsored by ...

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Coal Geology Geoscience Australia

2021-11-12  Coal is mined by both surface or ‘opencut’ (or opencast) and underground or ‘deep’ mining methods, depending on the local geology of the deposit. Underground mining currently accounts for about 60 per cent of world coal production but around 80 per cent of

More

Seismic monitoring strategies for deep longwall coal mines

2021-8-8  This report presents five strategies for detecting and recording seismic activity associated with deep longwall coal mining: 1. Single-station monitoring 2. Augmentation of an existing regional seismic network 3. Temporary network deployment 4. Implementation of a mine-wide or district-wide network 5.

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Coal Exploration and Mining Geology - UNESCO

2020-8-18  coal and the degree to which the coal quality varies throughout the deposit, combined with the method of working and the day-to-day extraction schedule, determine the properties of the mine product to be processed, marketed and used. A combination of the geological features also determines the impact of the mine upon the existing

More

Deep coal seams as a greener energy source: a review ...

1. Introduction. It is a well-known fact that world energy consumption is increasing with the growing population and around 81% of this demand is fulfilled from the fossil fuel sources with oil (32.4%) and coal (27.3%) being the major sources (IEA 2013).However, these sources will remain only for four to five decades, which emphasizes the importance of searching for new energy sources (Che et ...

More

2D and 3D Seismic Surveying at the CO2SINK Project Site ...

2009-2-14  Non-intrusive or indirect methods are based on imaging of the subsurface using various geophysical techniques, such as time-lapse 3D seismic imag-ing and vertical seismic profiling (VSP) to detect the presence of, and track the movement of the injected CO 2 plume. Recently, a number of commercial-scale projects, e.g. the Sleipner gas

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Coal: A Complex Natural Resource - USGS

Coal—A Complex Natural Resource. An overview of of factors affecting coal quality and use in the United States. Coal is abundant in the U.S., is relatively inexpensive, and is an excellent source of energy and byproduct raw materials. Because of these factors, domestic coal is the primary source of fuel for electric power plants in the U.S ...

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Geophysical Applications DMT GROUP

Because our expertise spans a wide range of geophysical methods and we have experience with these methods in a variety of geological settings, we can bring unique solutions to complicated problems using carefully designed and collected multi-method geophysical surveys. Applications: In-Seam Coal Mapping

More

寻找隐伏岩体的新方法:镜质体反射率法

2015-5-23  Explore deep concealed orebody by the application of synthetic methods of geophysical exploration: take polymetallic metallogenic belt in west of Henan province as an example[J]. Gold Science and Technology (in Chinese), 20(6): 21-26.

More

基于槽波的TVSP超前探测方法:可行性研究

2017-3-7  TVSP method for reconnaissance beyond coal roadway based on in-seam seismic waves: A feasibility study. Chinese J. Geophys . (in Chinese), 61(9): 3865-3875, doi: 10.6038/cjg2018L0146 .

More