基于泥水平衡的盾构渣土资源化利用工艺优化研究

Study on Process Optimization of Resource Utilization of Shield Muck Based on Slurry Balance

摘要:

泥水平衡盾构由于其独特的平衡水土压力的能力而已成为过江隧道或海底隧道施工方式的首选，但是在盾构掘进过程中会产生大量需要处理的渣土。为推动盾构渣土资源化利用，根据盾构渣土的组成和分类，确定了将其用于注浆材料、路基填筑材料、免烧砖等利用方式的控制指标，并对泥沙分离工艺进行优化，提出了注浆材料制备流程、优化的渣土固化改良工艺流程和免烧砖生产工艺流程。

Abstract:

The slurry balance shield has become the first construction method of cross-river tunnel or subsea tunnel because of its unique ability to balance soil pressure, but a large amount of muck during shield tunneling will be generated for treatment. In order to promote the resource utilization of shield muck, based on the composition and classification of muck, the control indicators for its application in grouting materials, roadbed filling materials, non-fired bricks, etc. are determined. And the muck separation process is optimized. The preparation process of grouting materials, the optimized process flow of muck solidification improvement and the production process flow of non-fired bricks are proposed.