Study on the Acoustic Emission Characteristics and Failure Precursors of Water-Rich Frozen Sandstone under Different Lateral Unloading Rates

Study on the Acoustic Emission Characteristics and Failure Precursors of Water-Rich Frozen Sandstone under Different Lateral Unloading Rates

The artificial freezing method is used to cross the water-rich soft rock strata in order to exploit deep coal resources. At present, studies that consider both freezing effect and unloading rate are insufficient. To study the influences of the excavation rate using the artificial freezing method on...

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Bibliographic Details
Main Authors: Shuai Liu, Gengshe Yang, Hui Liu, Xihao Dong, Yanjun Shen
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:Water
Subjects:
water-rich frozen sandstone
lateral unloading rate
mechanical properties
acoustic emission amplitude
energy and location
key energy picking
Online Access:https://www.mdpi.com/2073-4441/15/12/2297

Internet

https://www.mdpi.com/2073-4441/15/12/2297

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