Grouting In Stope Filling Stage Waste And Experimental Study On Reinforcement Treatment Of Plug

This paper studies the problem of grouting in Shandong Jinding mining Wang Wang Zhuang filling iron left room Wang Wang Zhuang left problems. Wang Wangzhuang iron ore production capacity of 0.5million tons / year, the actual production scale reached 2million tons / year. The main mining method of the mine is afterwards filling mining method. As the mine began in 2011 the new filling facilities have not been normal operation, The mines left over from the room-370 to-410 level cannot be filled. In order to solve the room vacant, two room of the mine goaf in 2013 to 2014 would be filled with waste. Originally planned for temporary storage and Later learned through rock grouting anchorage method will support the waste into a pillar reinforcement strength, Namely, the feasibility study task is put forward.This paper do a lot of experiments to solve the existing problems of Jinding mining,including:1, the grouting material ratio test and flow isolation experiment. Namely through the grouting material ratio tests get grouting material with the Mix proportion, by isolating the experiment illustrate grouting material in the flow process whether segregation;2, grouting simulation experiment. Through the field grouting simulation test, the grouting parameters such as grouting pressure, grouting quantity, spreading radius and so on;3, grouting and solid strength test. Through the grouting and solid strength detection of grouting and the strength of a solid understanding of whether to step the real pillar strength requirements.Article also of grouting and solid grout injection and in reinforcement design and checking calculation of stability, the grouting and solid inserted bar anchorage, and by FLAC3 D analysis software of in band and in band two waste rock grouting for the numerical simulation of operation, for the scheme implementation has laid a theoretical foundation.