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Zhengzhou is a second-tier cities in P. R. China and is just located at Yellow River alluvial landforms where the soils are divided into four strata combinations of flood alluvial deposit based on the lithology, sedimentary environment and geomorphic units. Zijingshan Station is one of the most important stations of the total subway lines in Zhengzhou, the first and second subway lines join together...
Deformation characteristics of the cemented mortar consolidation are a key factor to induce ground movement. In order to evaluate the influence of tail void grouting on ground movement, the consolidation model of cemented mortar was constructed by experimental results. On the basis of finite difference solution, the consolidation model is reasonable by experimental verification.
Tail void grouting is a key technology of shield tunneling to control stratum settlement. Consolidation deformation process of cemented mortar is determined by cement hydration. Based on experimental results of the influence of cementation on stress-strain relationship and permeability coefficient, the quantitative relations were established. Finally, the consolidation deformation model were derived,...
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