A Safe and Efficient Mining Method with Reasonable Stress Release and Surface Ecological Protection

Zhenghu Li, Junhui Zhang, Hui Chen, Xiuzhi Shi, Yanyang Zhang and Yanjun Zhang
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Zhenghu Li: School of Geology and Mining Engineering, Xinjiang University, Urumqi 830046, China
Junhui Zhang: School of Geology and Mining Engineering, Xinjiang University, Urumqi 830046, China
Hui Chen: School of Geology and Mining Engineering, Xinjiang University, Urumqi 830046, China
Xiuzhi Shi: School of Geology and Mining Engineering, Xinjiang University, Urumqi 830046, China
Yanyang Zhang: School of Geology and Mining Engineering, Xinjiang University, Urumqi 830046, China
Yanjun Zhang: Shenmu Zhangjiamao Mining Co., Ltd., Shaanxi Coal Chemical Industry Group, Xi’an 710000, China

Sustainability, 2022, vol. 14, issue 9, 1-12

Abstract: Coal is an important basic energy source, widely distributed throughout the world, but resource abundance is uneven. Despite the need to develop and form new energy sources, coal energy maintains its dominant position. However, due to the uneven distribution and non-renewable nature of coal resources, the relationship between the supply and demand of coal resources is tight. The rational exploitation of coal and reducing resource mining wastes are particularly important at the present stage. The original mining method of the Zhangjiamao coal mine resulted in a large waste of coal resources. After replacing the “110 construction method”, the original advanced end-support was canceled, which saved a lot of process time and engineering costs and greatly improved the mine production efficiency. With an average mining depth of +300 m, the working face is in a safe and stable state, and the 110-mining process has little impact on surface subsidence. Its successful application provides a reference experience for other mines to promote resource-saving and efficient mining.

Keywords: non-renewable; clean coal technology; waste of resources; “110 construction method”; collapse settlement control (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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