HIGHLIGHTS
- who: Feng Cui and colleagues from the Energy School, Xi'an University of Science and Technology, Xi'an, China have published the Article: Study on the Evolution Law of Overburden Breaking Angle under Repeated Mining and the Application of Roof Pressure Relief, in the Journal: (JOURNAL)
- what: To simplify the analysis, the overlying the original girder structure of the turning instability is transformed into the simply supportedstrata beam are considered as simply-supported beamgoaf structures, and compacted, the red dotted is regarded as the structure cut along the roof.
- how: The observation results . . .
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