Deformation Mechanism and Reinforcement Technology of Roadways with Soft Broken Surrounding Rock
In order to solve the problems such as large deformation and difficult support of roadways with soft broken surrounding rock,the deformation mechanism of surrounding rock under anchor net and cable shotcrete support of roadway was analyzed with 11203 transport roadway as the research object,and it was proposed to use anchor injection and floor support for reinforcement of the original support.By anchoring,the stability and deformation resistance of soft broken surrounding rock were improved,and the original supporting bolts and cables were changed from end anchor to full anchor,and the supporting strength of surrounding rock was enhanced.The engineering practice showed that the reinforcement technology scheme of 11203 transport roadway had remarkable effect,which can effectively control the deformation of soft broken surrounding rock.
broken surrounding rockroadway drivinganchor injection supportsurrounding rock deformation
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