郑西客专制梁场CFG桩地基处理设计方案优化与施工技术

Optimization of Design Program for Soil Improvement by CFG Pile in Zhengzhou-Xi'an PDL Girder Yard and Its Construction Technology

随着客运专线建设的逐步展开,从沿海至内地,从山区到平原,修建了大量的客专梁场,在梁场各种地基处理方法中,CFG桩的用途越来越广。结合郑州至西安客运专线梁场地基处理的经验,针对客专梁场地基土土质复杂、所受荷载大和控制变形标准要求高的特点,对客专梁场采用CFG桩进行地基处理设计方案的优化与施工进行了综合论述。

Along with the gradual construction of passenger dedicated line （ PDL）, from the coast areas to the inland, from the mountains areas to the plains, a large number of box-beam precast girder yards have been built, Among the methods of foundation treatment for girder yard, CFG pile is more and more widely used, Together with the obtained experience from Zhengzhou-Xi＇ an PDL girder yard soil improvement, in view of the complex soil condition, heavy load bearing and high standard on settlement, this paper generally summarized optimized design proposal of CFG pile for soil improvement in girder yard, as well as our experience