RESEARCH ON THE RELATIONSHIP BETWEEN SUBLEVEL CAVING SUPPORT LOAD AND ROOF STRUCTURE
综采放顶煤支架受力与顶板结构的关系探讨

According to the results .of field observation and dynamic analysis , the reason why the load of sublevel caving is different from multislice caving is explained. Two kinds of roof structures about sublevel caving are given. The static and dynamic specialities of the structures are discussed. The conclusion is useful to support designing and choosing.