Study on stability control of equipment removal channel for high cutting mining face under special condition
Yang Renshu
Li Yongliang
Zhu Ye
Xiao Chenglong
Zhao Yong
Shi Guoli
Abstract：In order to realize the equipment rapid and safety removal from a high cutting coal mining face under the special condition,based on the removal channel of No.5310 coal mining face in Zhaozhuang Mine as the engineering background,the site investigation,numerical simulation,theoretical analysis and other methods were comprehensively applied to study the different breakdown locations of the main roof and the periodical roof pressurized step distance affecteds to the equipment removal channel.Therefore,the rational equipment removal channel location could be determined.According to the occurrence features and surrounding rock conditions of the equipment removal channel,to adhere the principle of "the roof and sidewall coordinative control",based on the improvement of the powered support initial support force,a full anchor support was applied to the roof and a bolt/steel mesh/anchor combined support was applied to the sidewall of the seam gateway.The site monitoring and measuring showed that the support plan could realize the successful equipment removal from the coal mining face and could provide the references to the removal channel stability control of the coal mining face under the similar condition.
Keywords：high cutting heightcomplex roofsoft seamequipment removal channelsurrounding rock control
Publication Date：2017-01-01
Pages：6( 10-15 )