花管注浆在基坑边坡加固工程中的应用

Application of Well Screen Grouting in Foundation Slope Engineering

地下空间利用是当今工程技术发展的难点和重点,基坑支护系统的安全性、经济性、工作可靠性制约着地下空间开发利用技术的发展。花管注浆技术较好地解决了由杂填土、淤泥(质)土、软粘土、砂性土等软弱土质基坑壁的锚固支护问题,提高了基坑支护系统整体稳定性。结合宜昌维多利亚广场基坑支护工程实例,就软弱土质基坑壁变形原因、发展变化规律、花管注浆处理技术可行性论证、应急抢险处理实施和效果检测进行了初步探讨。

The well screen grouting technology has solved the problems of anchoring which caused by miscellaneous fill,silt,clay,sandy soils and other soft soil foundations.It improves the overall stability of excavation support systerm.Abnormal deformation of foundation slope is a common phenomenon in the process of foundation construction.Rationality and feasibility of slope reinforcement program are particulary important.Take the example of rescuing and strengthening the EF foundation section of Victoria square,this paper describes the application of well screen grouting technology in slope reinforcement program at specific environment and geological condition.It makes people have a better understanding of the technology.