Next Article in Journal
Dissolution and Sorption Processes on the Surface of Calcite in the Presence of High Co2+ Concentration
Previous Article in Journal
Comparison of Adsorption of Phenol O-O and N-O Chelating Collectors at the Malachite/Water Interface in Flotation
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Minerals 2017, 7(2), 21; doi:10.3390/min7020021

A Novel Comprehensive Detection Method for the Dynamic Characteristics of Coalface Overburden: A Case Study in China

1
IoT Perception Mine Research Center, National and Local Joint Engineering Laboratory of Internet Application Technology on Mine, China University of Mining & Technology, Xuzhou 221008, China
2
State and Local Joint Engineering Laboratory for Gas Drainage & Ground Control of Deep Mines, Henan Polytechnic University, Jiaozuo 454000, China
3
Key Laboratory of Safety and High-Efficiency Coal Mining, Ministry of Education, Anhui University of Science & Technology, Huainan 232001, China
4
State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
5
School of Mines, China University of Mining & Technology, Xuzhou 221116, China
6
State Key Laboratory of Coal Resources and Safe Mining, China University of Mining & Technology, Xuzhou 221116, China
7
Institute of Mining Engineering, Guizhou Institute of Technology, Guiyang 550003, China
*
Author to whom correspondence should be addressed.
Academic Editor: Abbas Taheri
Received: 24 November 2016 / Revised: 20 January 2017 / Accepted: 29 January 2017 / Published: 15 February 2017
View Full-Text   |   Download PDF [12275 KB, uploaded 15 February 2017]   |  

Abstract

Accurate and efficient acquisition of information about the dynamic characteristics of coalface overburden can provide an important theoretical basis for green mining in coal producing regions in western China. In this study, a novel method for comprehensively detecting the dynamic behavior of coalface overburden is proposed in order to address deficiencies of the existing detection methods. The new method combines surface radon measurement, overburden borehole imaging, and underground pressure observation into a comprehensive detection technology system, resulting in spatial and temporal integration of surface, overburden, and underground detection. To examine the feasibility of the proposed method, a field experiment was carried out at #1103 coalface in the Suancigou Coal Mine, which is operated by the Inner Mongolia Yitai Coal Co. Ltd. The results of the three approaches are largely consistent and they complement one another. But it must be pointed out that this method needs to be further improved by more field experiments. Based on the experimental results, a technique for forced caving by presplit blasting of the overburden was developed and then implemented to #1103 coalface. The practical use of the technique led to good results: it effectively prevented roof-associated accidents by controlling the first weighting step to about 82 m, contributing to safe and efficient mining; coal production was expected to increase about 126 kilotons. View Full-Text
Keywords: coalface overburden; dynamic characteristics; comprehensive detection method; spatial and temporal integration; forced caving by presplit blasting coalface overburden; dynamic characteristics; comprehensive detection method; spatial and temporal integration; forced caving by presplit blasting
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Zhang, W.; Yang, Z.; Zhang, D.; Wang, X.; Li, P.; Xu, M. A Novel Comprehensive Detection Method for the Dynamic Characteristics of Coalface Overburden: A Case Study in China. Minerals 2017, 7, 21.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Minerals EISSN 2075-163X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top