Development Law of Overlying Strata’s Broken Fissure Based on Bored Imaging by Big Data Analysis

Xianmeng Zhang, Jingchun Wang, Dan Feng () and Minghao Wang
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Xianmeng Zhang: School of Safety Engineering and Emergency Management, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
Jingchun Wang: School of Safety Engineering and Emergency Management, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
Dan Feng: School of Safety Engineering and Emergency Management, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
Minghao Wang: School of Safety Engineering and Emergency Management, Shijiazhuang Tiedao University, Shijiazhuang 050043, China

Sustainability, 2023, vol. 15, issue 6, 1-13

Abstract: This paper aims to provide the basis of the parameters and data interpretation for some important problems, such as the identification of the type of overlying strata and the analytical calculation, where the coal mine is employed as the object of the study. Particularly, the rock structure and fracture development characteristics of the overlying strata were observed, and the development conditions of the fracture zone were counted. By utilizing the on-site stress data, the inclination of the broken zone based on the rock fracture theory was calculated. The study shows that the distribution of the mining fissure is related to the rock and integrity degree of the strata, and that the native maximum expansion angle of fissure is 70.54°. With mining influence, small angle native shallow fissures will be bound to expansion, and the deep-mined fissure extension will be developed in the same direction. Moreover, it is easy to form the abscission layer, and then eventually form the fracture zone. The research results of this paper will not only provide an important foundation for the engineering practice, but also benefit the study of the simultaneous extraction of coal and gas.

Keywords: bored imaging; fissure; inclination; fracture theory; broken zone (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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