与工程实例相结合，通过对冲孔灌注桩的桩底注浆原理及受力机理的分析，阐述了桩底注浆的施工工艺，并针对施工中出现的异常问题提出了处理及质量保证措施，实践证明，桩底注浆能使冲孔灌注桩的承载力得以明显提升，同时也具备十分显著的经济效益。%Based on engineering examples,the thesis analyzes punched cast-in-situ pile bottom grouting principles,mechanical mechanism and construction technology and quality guarantee measures,and puts forward construction problems processing measures. Practice proves that:pile bottom grouting can improve punched cast-in-situ pile bearing capacity and has great economic benefits.
展开▼
