scholarly journals Progressive backfill mining technology with split and two wings

2021 ◽  
Vol 303 ◽  
pp. 01036
Author(s):  
Ma Qihua ◽  
Ma Weixiang ◽  
Gong Jianxiang
Keyword(s):  
Coal Mining ◽  
Coal Mine ◽  
Large Scale ◽  
Mining Industry ◽  
Underground Water ◽  
Mining System ◽  
Mining Technology ◽  
Soil And Water Loss ◽  
Efficient Recovery ◽  
Massive Accumulation

: With the large-scale development of the mining industry, soil and water loss, environmental pollution and other geological disasters ac-companied by coal mining are continually increasing. Therefore, while promoting coal mine production by relying on scientific and technological progress, measures to control and reduce the resulting disasters cannot be ignored. In this paper, taking Xiezhuang coal mine as an example, we have combined its actual production conditions to solve the environmental problems caused by the massive accumulation of surface gangue in Xiezhuang coal mine. Moreover, to improve the efficient recovery of coal resources and ensure the safety of deep resources mining, and to reduce the rock burst and the damage caused to the underground water body, a re-search on forward filling mining technology with split-wing is put forward. This paper mainly discusses the related technologies and laws of forward filling mining method with split-wing, coal mining system, technological process, and filling mining.

scholarly journals Game Modelling and Strategy Research on Trilateral Evolution for Coal-Mine Operational Safety Production System: A Simulation Approach

Complexity ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-16
Author(s):  
Yan Li ◽  
Yan Zhang ◽  
Haifeng Dai ◽  
Ziyan Zhao
Keyword(s):  
Coal Mining ◽  
Coal Mine ◽  
Evolutionary Game ◽  
Mining Industry ◽  
Mine Safety ◽  
First Line ◽  
Coal Mining Industry ◽  
Coal Mine Safety ◽  
Safety Production ◽  
Decision Making Behavior

In view of the particularity and high risk of coal mining industry, the decision-making behavior of multiple agents inside the coal-mine enterprise plays a very important role in ensuring the safety and sustainable development of coal mining industry. The existing literature studies on coal-mine safety production focus mainly on statically analyzing the game among the external entities such as the government, the enterprises themselves, and the employees inside the enterprise from a macro perspective,are short of research on revealing the dynamic interactions among the actors directly involved in the coal-mine accidents and also on proposals for effective interactions that will lead to improved safety outcomes. Therefore, this paper explores the use of evolutionary game theory to describe the interactions among the stakeholders in China’s coal-mine safety production system, which includes the organization, the first-line miners, and the first-line managers. Moreover, the paper also explores dynamic simulations of the evolutionary game model to analyze the stability of stakeholder interactions and to identify equilibrium solutions. The simulation results show that when certain conditions are met, the decision-making behavior of the organization, miners, and managers can evolve into the unique ideal steady state (1, 1, 1). In addition, the strategy portfolio with a relatively high initial proportion of three agents converges more quickly to an ideal state than a relatively low strategy portfolio. Moreover, the stable state and equilibrium values are not affected by the initial value changes. Finally, we find that the combination of positive incentive policies and strict penalties policies can make the evolutionary game system converge to desired stability faster. The application of the evolutionary game and numerical simulation when simulating the multiplayer game process of coal-mine safety production is an effective way, which provides a more effective solution to the safety and sustainable development of coal mining industry.

scholarly journals Remote-Sensing Evaluation and Temporal and Spatial Change Detection of Ecological Environment Quality in Coal-Mining Areas

2022 ◽  
Vol 14 (2) ◽  
pp. 345
Author(s):  
Xinran Nie ◽  
Zhenqi Hu ◽  
Mengying Ruan ◽  
Qi Zhu ◽  
Huang Sun
Keyword(s):  
Coal Mining ◽  
Coal Mine ◽  
Large Scale ◽  
Coal Dust ◽  
Ecological Environment ◽  
Ecological Index ◽  
Mining Areas ◽  
Environment Quality ◽  
Temporal And Spatial

The large-scale development and utilization of coal resources have brought great challenges to the ecological environment of coal-mining areas. Therefore, this paper has used scientific and effective methods to monitor and evaluate whether changes in ecological environment quality in coal-mining areas are helpful to alleviate the contradiction between human and nature and realize the sustainable development of such coal-mining areas. Firstly, in order to quantify the degree of coal dust pollution in coal-mining areas, an index-based coal dust index (ICDI) is proposed. Secondly, based on the pressure-state-response (PSR) framework, a new coal-mine ecological index (CMEI) was established by using the principal component analysis (PCA) method. Finally, the coal-mine ecological index (CMEI) was used to evaluate and detect the temporal and spatial changes of the ecological environment quality of the Ningwu Coalfield from 1987 to 2021. The research shows that ICDI has a strong ability to extract coal dust with an overall accuracy of over 96% and a Kappa coefficient of over 0.9. As a normalized difference index, ICDI can better quantify the pollution degree of coal dust. The effectiveness of CMEI was evaluated by four methods: sample image-based, classification-based, correlation-based, and distance-based. From 1987 to 2021, the ecological environment quality of Ningwu Coalfield was improved, and the mean of CMEI increased by 0.1189. The percentages of improvement and degradation of ecological environment quality were 71.85% and 27.01%, respectively. The areas with obvious degradation were mainly concentrated in coal-mining areas and built-up areas. The ecological environment quality of Pingshuo Coal Mine, Shuonan Coal Mine, Xuangang Coal Mine, and Lanxian Coal Mine also showed improvement. The results of Moran’s Index show that CMEI has a strong positive spatial correlation, and its spatial distribution is clustered rather than random. Coal-mining areas and built-up areas showed low–low clustering (LL), while other areas showed high–high clustering (HH). The utilization and popularization of CMEI provides an important reference for decision makers to formulate ecological protection policies and implement regional coordinated development strategies.

scholarly journals Preliminary Investigation into Measurement While Drilling as a Means to Characterize the Coalmine Roof

Resources ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 10 ◽  
Author(s):  
Manoj Khanal ◽  
Johnny Qin ◽  
Baotang Shen ◽  
Bongani Dlamini
Keyword(s):  
Coal Mining ◽  
Large Scale ◽  
Preliminary Investigation ◽  
Mining Industry ◽  
Rock Samples ◽  
Ongoing Work ◽  
Roadway Stability ◽  
Variable Nature ◽  
Measurement While Drilling ◽  
Discontinuous Nature

The variable nature of the coalmine roof poses a challenge to roadway stability during underground coal mining. There have been fatalities and financial losses in the coal mining industry due to roadway failures and roof falls. Generally, the geotechnical and geological data gathered from exploration boreholes, which are drilled at considerable distances from each other, are used to characterize the thickness and quality (including strength) of the coalmine roof. This process provides a limited number of samples that cannot represent the discontinuous nature of the strata in the coalmine roof nor can they form reliable inputs to a digital model of the rock mass component of the digital mine. Gaining confidence in the strata properties of the coalmine roof is necessary for the modelling, design, and maintenance of roadways. The paper describes the progress of the ongoing work to investigate the monitoring while drilling (MWD) concept for characterizing coalmine roofs. Large-scale drilling experiments in synthesized sandwiched rock samples without interfaces were carried out. The drilling response data were analyzed to identify whether the drill data differentiates the various strengths associated with the rock samples. The initial results show that the drilling data can differentiate the synthesized rock samples.

Clean Mining Technology of Waste Not Discharged From Coal Mine

2012 ◽  
Vol 524-527 ◽  
pp. 552-556
Author(s):  
Dong Sheng Zhang ◽  
Tao Dong ◽  
Gang Wei Fan
Keyword(s):  
Coal Mining ◽  
Coal Mine ◽  
The Other ◽  
Mining Technology ◽  
Mining Technique ◽  
Key Points ◽  
Mining Face ◽  
Coal Pillars ◽  
Waste Separation

In order to solve the problem of heaping waste in aboveground, a cleanly mining technique of waste not discharged from coal mine was proposed. It includes two key points as follows: one is waste separation underground; the other is mining technique with preset packing body of waste without coal pillars. After the waste from the coal mining face had been separated out, the waste was used to preset packing body of waste. It is able to decrease stress of mine hoisting. The technique has been successfully used in Gaozhuang Coal Mine.

Development Mode of the Modern Coal Mine in the Large-Scale Coal Bases in China

2012 ◽  
Vol 524-527 ◽  
pp. 3062-3065
Author(s):  
Xian Ping Yuan ◽  
Hong Xia Chen
Keyword(s):  
Coal Mine ◽  
Management System ◽  
Large Scale ◽  
Primary Energy ◽  
Facility Management ◽  
Environment Protection ◽  
Development Mode ◽  
Mining Technology ◽  
Coal Supply ◽  
Primary Energy Supply

Economic development is increasingly dependent on the availability of modern energy services. Coal accounting for 70% of total primary energy supply is the most key energy source in China. Thus, it is very important to sustain the growth of coal supply. This study research mainly the development mode of the modern coal mine in the large-scale coal bases in China. Construction scale of mine is discussed, together with mining technology and methods, safety facility, management system and environment protection. The author’s view about the scale, mining technology and methods, safety facility, management system and environment protection is presented.

Heritage Work: Re-Representing the Work Ethic in the Coalfields

1999 ◽  
Vol 4 (3) ◽  
pp. 170-183 ◽  
Author(s):  
Tim Strangleman ◽  
Emma Hollywood ◽  
Huw Beynon ◽  
Katy Bennett ◽  
Ray Hudson
Keyword(s):  
Coal Mining ◽  
Coal Mine ◽  
Work Ethic ◽  
Complex Analysis ◽  
Mining Industry ◽  
Coal Industry ◽  
Main Body ◽  
Coal Mining Industry ◽  
The Uk ◽  
The Way

This paper aims to discover how, with the decline and ending of the deep coal mining industry in many parts of the UK its legacy is being re-evaluated by those involved in various aspects of economic and social regeneration. It opens by exploring the way coal mine workers and their communities have been seen within popular and academic accounts, and in particular the way this group has been subject to ideal typification and stereo-typing. The main body of the paper examines the way this legacy is still subject to such interpretation, and that further, the specificity of the coal industry is commodified in a variety of ways. We point out the contradictory nature of this process and argue that it is inevitably damaging to a complex analysis of the deep problems facing former coalfield areas.

Research on the Circular Economy Mode of Modern Coal Mine - Case Study on the Development of Xishan Coal Mine Areas

2011 ◽  
Vol 361-363 ◽  
pp. 1337-1341
Author(s):  
Yi Zhang ◽  
Hua Ling Song ◽  
Chun Lei Li ◽  
Chuan Peng Wang
Keyword(s):  
Coal Mining ◽  
Coal Mine ◽  
Circular Economy ◽  
Mining Industry ◽  
Operating Mode ◽  
Shanxi Province ◽  
Development Mode ◽  
Coal Mining Industry ◽  
New Development ◽  
Circular Economy System

For studying the circular mechanism and the operating mode of modern mine, this paper reviewed the current development situations of circular economy modes and some typical circular economy parks in coal mining industry at home and abroad. With the Xishan coal mine areas as the investigated objective, which operated by Xishan Coal-electricity Group in Shanxi Province of China, the characterized circular economy mode is put forwarded and concluded as “33386” development mode. Furthermore, the structure and industrial chains of Xishan circular economy system are researched in whole and interpreted in part. This is a successful attempt on the coal mining industry with a new development mode and a complete circulation of resourses in practice.

scholarly journals Lubang Tambang Batu Bara Bayah: Jejak Romusha di Banten Selatan

2017 ◽  
Vol 13 (2) ◽  
pp. 223
Author(s):  
Iwan Hermawan
Keyword(s):  
Data Collection ◽  
Coal Mining ◽  
Coal Mine ◽  
Descriptive Analysis ◽  
Analysis Data ◽  
Mining Activities ◽  
Mining System ◽  
Japanese Occupation ◽  
Field Surveys ◽  
Different Parts

Romusha was a form of labor force mobilization during the Japanese occupation. They are employed to build military infrastructure and explore mining or digging foxholes. One of the center of romusha was Bayah in South Banten. Romusha were came from different parts of Java Island and employed in the Bayah Kozan coal mine. The coal mining system carried out in Bayah, is a closed mine. Mining is done by making a hole to reach ader (ore tree). The mining pits and coal mining activities were conducted with simple equipment under the pressure and torture of the Japanese soldiers who supervised romusha. This paper aims to uncover traces romusha in South Banten through the remains of Japan in the form of Coal Mine Hole. The writing method used is descriptive analysis. Data collection through the activities of literature studies, field surveys, and interviews. The suffering experienced by the romusha in Bayah reflected from the pits where coal mines are numerous in the region Gunungmadur Bayah.Romusha merupakan bentuk mobilisasi tenaga kerja pada masa Pendudukan Jepang. Mereka dipekerjakan untuk membangun sarana prasarana militer dan menggali bahan tambang atau lubang perlindungan. Salah satu daerah yang menjadi tempat pemusatan romusha adalah Bayah di Banten Selatan. Mereka berasal dari berbagai daerah di Pulau Jawa dan dipekerjakan di tambang batu bara Bayah Kozan. Sistem penambangan batu bara yang dilakukan di Bayah adalah tambang tertutup. Penambangan dilakukan dengan cara membuat lubang untuk mencapai ader, yaitu pohon bijih. Kegiatan penggalian lubang tambang dan penambangan batu bara dilakukan dengan peralatan sederhana di bawah tekanan dan siksaan tentara Jepang yang menjadi pengawas romusha. Tulisan ini bertujuan untuk mengungkap jejak romusha di Banten Selatan melalui tinggalan masa Jepang berupa lubang tambang batu bara. Metode penulisan yang digunakan adalah deskriptif analisis. Pengumpulan data melalui kegiatan studi pustaka, survei lapangan, dan wawancara. Penderitaan yang dialami oleh para romusha di Bayah tergambar dari keberadaan lubang-lubang tambang Batu bara yang banyak terdapat di kawasan Gunungmadur, Bayah.

Sign in / Sign up

Export Citation Format

Share Document