The Construction New Technology Researching And Theory Analyzing Of Tunnel's Gate

The railway tunnel entrance to cave a term of stratum thinner, belonging to strong effloresce band, wall rock generally more broken , and usually clipping soil layer, so for this kind of disadvantage condition in soil arch, how reasonable exploitation every kind of construction method, while insuring the safe premise, lower the engineering throw in, increasing work efficiency, study to the breakage mechanism that enhance to the rock strata at the same time, every kind of a timbering method with wall rock a research for of interaction, these works need the problem of the solution is urgent now.This text introduces the railway tunnel entrance to cave a characteristics for of every kind digging with a timbering method, these methods with apply the stratum, and the timbering mechanism of these methods with start construction craft, and make use of on the spot and physically the inside obtained the success. Each a tunnel entrance to cave contain its different characteristics, contrasting in the under construction proceeding analysis, getting the most reasonable construction method. In inducing the foundation of the summary to every kind of timbering construction method, to note the pouring serosity reinforce the method proceeded the numerical value imitates the calculation, analyzing from its mechanism primarily is function that structural and safe coefficient in exaltation to increases rock soil round rock calculation rub Cape ΨC, geologic stratum proceed pouring serosity reinforce with jet the concrete timbering etc. method can effectively, rise stable geologic strata. The research of these methods to the design of the tunnel entrance to cave segment with construction to havegot the positive propulsion function.