强风、大温差戈壁土风沙路基填料施工技术研究

Study on Roadbed Filling Technology in Gobi Area of Strong Winds and Large Temperature Difference

在重复的列车荷载作用下,路基要产生不可恢复的累计下沉,最终影响轨道结构的平顺性,所以承载特性和变形问题便成为高速铁路路基设计与施工的控制因素,对路基填料以及压实质量也有了更高的标准,研究满足强风、大温差戈壁土风沙地区高速铁路路基技术参数要求的路基填筑施工工艺标准,包括填料的选择、控制、压实工艺及质量检验方法等,提出有关指导建议。

Under repeated train load, irretrievable is bound to occur on the roadbed which will inevitable undermine the smoothness of track. Therefore, the bearing characteristics and deformation problem becomes bottleneck in the design and construction of high speed railway and higher standards of roadbed compaction quality are needed. The paper studys the subgrade filling technology of high-speed railway that meets the technical requirement of roadbed in Gobi area of strong wind and large temperature difference including filling selection standards, control, compaction process and quality inspection method and so on. It provides guidance for high speed railway subgrade design and construction suggestions.