Variations in Hydraulic Properties of Sendimentary Rocks Induced by Fluid Injection: The Effect of Water Pressure

Abstract

Currently, China is the world's largest coal producer [1]. Although China has restricted its coal output in recent years, the economy of China will still be highly dependent on coal extraction and production in the foreseeable future [2]. However, groundwater inrush into the mine working face is a common occurrence during the extraction of this important resource [2-5], which is one of the greatest challenges in underground engineering [5-13]. Statistics for the past 20 years in China show that