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| Study on support technology of ultra - high strength flexible bolt in high dynamic pressure roadway |
| Cao Jianlai |
| Wuyang Mine, Shanxi Lu 'an Environmental Protection Energy Development Co., Ltd., Changzhi 046200, China |
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Abstract In view of the large support density, high support cost, slow construction speed and unsatisfactory control effect of roadway support in 8005 transportation roadway, according to the actual geological conditions of the roadway, the ultra-high strength flexible bolt support technology was selected for roadway support by using comprehensive research methods such as theoretical analysis and field monitoring. The field industrial test showed that after the use of ultra-high strength flexible bolt support technology, the bearing capacity of roadway surrounding rock was improved, the deformation of roadway was controlled, the deformation speed of roadway was reduced, the stability time of roadway was shortened, and the production needs were met.
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