Technical Difficulties and Countermeasures of High-Way Bridge Pile Foundation Construction in Karst Area
This paper analyzes the difficulties and existing problems of highway bridge pile foundation construction technology in karst areas from the aspects of on-site monitoring,drilling and clearing,and hole formation.Meanwhile,based on the special geological and hydrological conditions in karst areas,this paper sorts out the construction process of highway bridge pile foundation in this type of area and the principles of karst pile foundation treatment.It is emphasized that different pile foundation construction treatment schemes should be selected according to local conditions under different karst cave types.Finally,from the process of backfill treatment,borehole wall protection,grouting and so on,the points for attention in highway bridge pile foundation construction in karst area are studied,which is helpful to effectively avoid the bad geology in karst area and ensure the quality of pile foundation construction.
karst areahighway bridgespile foundation construction
万方数据
维普
