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兰新铁路第二双线是我国第一条大范围穿越戈壁地段的客运专线,为确保在戈壁区域路基的工程质量,本文研究了重锤夯实与CFG桩联合进行地基处理方法,通过研究提出了施工要点,冬季施工的相应措施,并对地基加固效果进行了标准贯入试验、载荷试验以及桩质量检测,结果表明此法可行。
In order to ensure the engineering quality of subgrade in the Gobi region, the second double line of Lan-Xin Railway is the first passenger dedicated line to cross the Gobi area in our country. In this paper, the method of combining foundation with ground compaction and CFG pile is studied. Construction essentials and corresponding measures in winter construction. The standard penetration test, load test and pile quality test were carried out on the foundation reinforcement effect. The results show that this method is feasible.