综放开采条件下覆岩离层动态发育规律

Dynamic Principles of Development of Strata(bed) Separation by Fully Mechanized Top Coal Caving

为控制地表沉陷量，实现农田保护和建筑物下采煤，兖州矿区多次进行了综采放顶煤 开采条件下覆岩离层注浆减沉试验．在试验过程中对离层动态发育规律进行了重点研究，其结 论适合于在类似条件下的离层注浆减沉技术的应用场合．

In order to control the ground subsidence, protect the agricultural fields and safely caving under the building, in-situ test of the strata(bed) separation grouting by fully mechanized top coal caving have been improved several times in the Yanzhou Coal Area. During the test, the dynamic principles of development of strata(bed) separation have been studied. Its conclusion is suited to apply the technology of the strata(bed) sep- aration grouting under the similar condition.