粉喷桩施工质量控制技术及应用

Construction quality control technology of powder-spraying pile and the application

粉喷桩是进行软土地基处理的一种常用施工方法,结合工程实例,在原材料选用、配合比设计的基础上,详细介绍了粉喷桩施工工艺和技术控制要点,通过实践证明,粉喷桩施工质量控制技术成功应用不但提高了地基承载力,而且保证了地基沉降量和稳定性,使桥头跳车现象得以控制。

Powder-spraying pile is a kind of common construction method in soft foundation treatment.Combining with the engineering practice,based on raw material selection and mixing proportion design,the paper specifically introduces its construction technology and technical control points.Practice proves that： the successful application of powder-spraying pile construction quality control not only improves the foundation bearing ability,but also guarantees the foundation settlement and stability,and effectively avoids bridge-head bump.