Study On Feather Analysis And Rapid Hardening Technology In The Floor Of Roadways In Coal Face

In view of the mining face gateway floor adopts the traditional way of ordinary concretehardening widespread construction speed is slow, large volume, high cost, poor quality ofconcrete hardening and floor pavement damage in the process of using, the difficulty ofmaintenance, carry out along the groove bottom rapid hardening technology of relatedresearch, the main work and conclusions are as follows:(1) Based on the analysis of the problems existing in the coal mining face gateway floorhardening and hardening, on the basis of technical requirements, Through the lattice roomreinforcement at home and abroad, the study of the key technology such as flexible concreteand RCC, put forward the thickness is130-150mm, consist of reinforced lattice room andinternal filling material along the groove bottom of pavement structure.(2) Lattice room load-bearing mechanism of roller compacted concrete compositepavement reinforcement and with traditional cement concrete pavement plate bendingstrength relies mainly on the pavement load and asphalt concrete pavement depend mainly onbasic load has essential difference, the load-bearing mechanism of pavement structure isthrough the block between the arch effect and joint shear properties to realize the spread ofthe load, improve pavement shear strength and deformation of the adaptive ability.(3) Based on the mechanical properties of different types of reinforced lattice room andreinforcement mechanism (lateral restraint, and the roles of friction, a net effect) analysis,points out its mechanical characteristics and its structure, welding is smaller, the higher theheight, the higher the strength of structure layer, the lateral restriction, the greater the wallfriction is the greater the net effect and the better reinforcement effect.(4) Experimental study on determining the proportion of meet the performance requirements of filling materials. Reinforced by monomer, ventricular filling andreinforcement filling structure bearing plate mechanics deformation experiment research,further validated as a result of the action of reinforced lattice room, in the low strength offilling materials, pavement condition of less thickness of the structure still has high bearingcapacity and the ability to adapt to the large deformation and spread to the grassroots andpavement bearing mechanism of the surrounding stress is small.(5) Industrial ground simulation test shows that the process goes on to the good, theconstruction speed is more than four times higher than that of the traditional, bearing capacitysatisfy the use performance, while significantly reduce the comprehensive cost and hasobvious social benefits, has the strong application prospects.