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京沪铁路是我国拟建的第一条时速高于300 km的高速铁路,沿线可液化砂土对铁路路基具有一定的潜在危害,需要进行加固。文中分析了砂土液化机理并对现有加固方法进行了总结,并对京沪高速铁路可液化砂土地基加固方法的可行性进行了研究探讨,提出了相应的地基加固方法。
The Beijing-Shanghai Railway is the first high-speed railway to be built at a speed of more than 300 km per hour. The liquefiable sand along the railway line has certain potential hazards to the railway subgrade and needs to be reinforced. In this paper, the mechanism of sand liquefaction is analyzed and the existing reinforcement methods are summarized. The feasibility of strengthening liquefiable sand ground for Beijing-Shanghai high-speed railway is discussed and the corresponding method of foundation reinforcement is proposed.