Abstract
This study focuses on prevention and control of water issues when mining under the alluvium and thin bedrock in coalmines. At first a dual structure to describe the soil and rock transition belt in this situation is abstracted. Then a series of similar material simulations on considering the formation combination of hard/soft layers, fault and formation dip of certain degree are made to assess the affect caused by the dual structure to deformation and failure and each factor forms a specific deformation and failure characteristics. In addition, by obtaining cores from borehole and recording graphs of the wall of borehole, the deformation and failure characteristics and water blocking capability of the dual structure are verified. The research shows that the clay/rock structure has the coordination deformation characteristic, which is the deformation of the clay attaching to the ancient erosion surface of bedrock. If there appear no dramatic rock deformation and fracture, the clay layer will still has structural stability and continuity after mining.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
