Research progress of technologies for intelligent separation and in-situ backfill in deep coal mines in China

被引：0

作者：

Zhang J. ^{[1
]}

Tu S. ^{[1
]}

Cao Y. ^{[2
]}

Tan Y. ^{[3
]}

Xin H. ^{[4
]}

Pang J. ^{[4
]}

机构：

[1] School of Mines, State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou, 221116, Jiangsu

[2] School of Chemical Engineering and Technology, Zhengzhou University, Zhengzhou, 450001, Henan

[3] College of Mining and Safety Engineering, State Key Laboratory of Mining Disaster Prevention and Control Cofounded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao, 266590, Shandong

[4] Shandong Energy Xinwen Mining Group Co Ltd, Tai'an, 271000, Shandong

来源：

Caikuang yu Anquan Gongcheng Xuebao/Journal of Mining and Safety Engineering | 2020年 / 37卷 / 01期

关键词：

Coal gangue separation; Deep coal mine; In-situ backfill; Intelligent; Strata control;

D O I：

10.13545/j.cnki.jmse.2020.01.001

中图分类号：

学科分类号：

摘要：

The proven coal reserves to a depth between 1000 and 2000 meters account for 53.3% in China. Generally, deep mining is carried out under complex environment characterized with high stress, high ground temperature, high karst hydraulic, high gas and strong mining disturbance ("four highs and one disturbance"). It is also facing with many problems, such as sudden change of tunnel, chamber and stope surrounding rock mutation, aggravation of coal and gas outbursts and low efficiency of coal lifting and etc. In 2018, a project of "Deep Coal Mine Underground Separation and In-situ Backfill Key Technology Equipment Research" was approved and established by the Ministry of Science and Technology, aiming to innovate and develop deep coal mine underground separation and in-situ backfill theory, technology, equipment, standards and engineering construction system. This paper closely focused on three key scientific problems: strata control of backfill working face in deep coal mines, the surrounding rock mass failure and the large-scale dense chamber group instability. Based on systematic descriptions of the underground coal mine intelligent separation and in-situ backfill technology, the latest progresses were introduced in detail, including the framework system of intelligent separation and in-situ backfilling technology in deep coal mines, accurate separation of full-size coal and gangue and water medium, instability mechanism and control of surrounding rock of super-large section tunnel, strata control in deep backfill mining as well as the project demonstration construction in Xinjulongcoal mine of Shandong Energy Xinwen Mining Group Co Ltd. The intelligent underground separation and in-situ backfill technology and equipment system developed in this research could provide theoretical basis and technical solutions for safe and efficient green mining of deep coal resources in China. © 2020, Editorial Board of Journal of Mining & Safety Engineering. All right reserved.

引用

页码：1 / 10and22

页数：1021

共 33 条

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