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针对陷落柱影响综采工作面推进的技术难题，研制成功了截割陷落柱的破岩滚筒。分析了破岩滚筒的截齿受力、载荷和切削制度参数等关键问题，确定了破岩滚筒的主要技术参数，为处理综采工作面中的陷落柱提供了一种有效的技术途径.
Aiming at the technical problems that the collapse column affects the advancement of fully mechanized coal mining face, a rock breaking roller for cutting the collapse column has been successfully developed. The key problems such as bearing force, load and cutting system parameters of rock breaking drum are analyzed. The main technical parameters of rock breaking drum are determined, which provides an effective technical approach for dealing with the collapse column in fully mechanized mining face.