NDLI: Study on Characteristics of Energy Storage and Acoustic Emission of Rock under Different Moisture Content

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Study on Characteristics of Energy Storage and Acoustic Emission of Rock under Different Moisture Content

Content Provider	MDPI
Author	Li, Chuanming Liu, Nan Liu, Wanrong Feng, Ruimin
Copyright Year	2021
Description	In order to study the energy storage and sound emission characteristics of rocks under different water content, uniaxial compression test, cyclic loading, unloading test and sound emission test were carried out using RMT-150B rock mechanics test system and DS5 acoustic emission system. The results show that the total strain energy of saturated rock samples and the area of hysteresis loop are the largest in the same period number, which indicates that the presence of water can reduce the elastic limit of rock samples, making the rock very easy to deform and even damage. Acoustic emission tests show that the damage energy of water-bearing rocks is small. The higher the water content, the smaller the peak damage energy. The bending energy index $WET of the rock sample under saturated and natural state is smaller than that under dry state, which further indicates that the presence of water can reduce the elastic limit of the rock and soften it. The results can provide a basis for the prediction of underground engineering construction and rock failure instability.$
Starting Page	1041
e-ISSN	20711050
DOI	10.3390/su13031041
Journal	Sustainability
Issue Number	3
Volume Number	13
Language	English
Publisher	MDPI
Publisher Date	2021-01-20
Access Restriction	Open
Subject Keyword	Sustainability Characterization and Testing of Materials Moisture Content Sandstone Acoustic Emission Energy Storage
Content Type	Text
Resource Type	Article

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