柔性桩处理高铁路基在沈丹客专中的应用分析

Analysis on Subgrade Treatment of Shenyang-Dandong Passenger Dedicated Line with Flexible Piles

为研究柔性桩对高铁路基的加固效果,结合沈丹铁路客运专线工程地质条件,选择深层搅拌桩、水泥粉喷桩进行加固处理,成桩后对地面沉降、测斜、土压力及土工格栅变形等数据进行了统计分析。结果表明:深层搅拌桩、水泥粉喷桩形成柔性桩在沈丹铁路客运专线中具有良好的路用性能。

In order to study the reinforcement effect of high-speed railway subgrade treated with flexible piles, deep mixing pile and cement injection pile were applied to carry out the reinforcement of Shenyang-Dan^tong passenger dedicated line combined with geological conditions. After the formation of piles, data of settlement, inclination, soil stress and geogrid deformation were collected and analyzed. The results show that flexible piles formed by deep mixing pile and cement injection pile show good performance on Shenyang-Dandong line.