盾构穿越上软下硬地层施工技术措施

摘要

The paper focuses on the typical upper soft and down hard geological conditions, analyzes the problems and risks in shield tunneling in upper soft and down hard strata. Aiming at the common problems in passing the upper soft and down hard unfavorable stratum in shield tunneling, the paper also studies the corresponding solutions and technical counter-measures, in order to improve the tunneling engineering quality and surface buildings safety of shield tunneling for upper soft and down hard geological environment.%文章围绕典型的上软下硬的地质环境，对盾构穿越上软下硬地层时的施工问题和风险进行了分析，并针对穿越上软下硬这种不良地层盾构施工发生的常见问题，研究了相应的解决措施和技术对策，以提高上软下硬地质环境下的盾构施工质量和地表建筑物安全。