provided by the National Natural Science Foundation of China (Grant No.51004101,No.51264035);the Science Foundation for Young Scholars of China University of Mining &Technology (Grant No.2009A001);the Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD);the Fundamental Research Funds for the Central Universities (2012QNA35)
This paper provides an improved understanding of the movement mechanisms of both bed-rock gully and sandy soil gully when underground mining occurs underneath,followed by systematic analysis of the contributing factor...