【摘要】 北京地区地层条件复杂,土压平衡盾构施工过程中渣土改良困难,易发生刀具磨损严重、地表塌陷等风险事故。在分析北京地区典型地层工程特点的基础上,结合主要渣土改良材料的特性及作用原理,对典型地层渣土改良技术进行了研究,得出了北京地区3种典型地层在不同水文地质条件下的土压平衡盾构渣土改良技术。更多还原

【Abstract】 It is difficult to conduct soil improvement for EPB shield construction,because of the complex formation conditions in Beijing area,which causes risks such as the severe wear of the cutters and surface collapse. The conclusion of soil improvement technology for soil,sand and gravel under different hydro geological conditions can be drew through the research which is based on analysis of typical formations project features,and combining material properties and action principles.更多还原