Study On The Shoring Form And The Support Parameters Of Shallow Underground Cavity Belonging To Strong Effloresce Band

The underground tunnel entrance to cave a term of stratum thinner, belonging to strong effloresce band, surrounding 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 methods, while insuring the breakage mechanism that enhance to work efficiency, study to the breakage mechanism that entrance to the rock strata at the same time, the research of the interaction of support method and surrounding rock is more important.This lesson aims at the item, the shoring form and the support parameters of shallow underground cavity belonging to strong effloresce band to study, combining with the construction site of the large-scale government colliery on the stores, the Five-wheels Mountain Colliery Corporation, leaded by Guizhou Energy sources and Chemical engineering Corporation. In this lesson, the problem of the shoring form and the support parameters of shallow underground cavity belonging to strong effloresce band, is studied by force method calculation and numerical value analyzing, and so on. And the design method for U-steel yieldable support and combined structure of steel and concrete is discussed. This analysis will provide a scientific basis and technical guidance for the design and the construction.The paper first of all introduces the progress and research actuality of shoring structural theory in underground engineering. Combining with the construction site of the Five-wheels Mountain Colliery Corporation, the paper adopts hyper-static...