Abstract
Abstract: Based on the design and construction of the south shaft of Yellow River Crossing Project, this paper calculated the grouting reinforcement range by theory method, which includes block strength theory, clay soil slippage theory and soil disturbance limit equilibrium theory. Owing to the thickness value was calculated by those theory methods which are conservative[1], so this paper will reduce the thickness value on the basis of theoretical value, then made the analysis on the stability through shield-driven numerical simulation , emphatically analyzed the displacement field. We can find that reducing the range of reinforced soil is feasible. In addition, the dimension of reinforced soil should satisfy the requirement from waterproof and collapse-proof. The research result is hopeful to provide theoretical basis and help for the design and construction of shield-driven.
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