针对含砂低液限粉土水稳定性差、路堤边坡抗冲刷能力弱的难题,以及新河高速公路所处的特殊地理、气候条件,根据含砂低液限粉土结构特点,从稳定土原理出发,采用自主研发的PST抗冲刷剂进行路堤边坡抗冲刷防护,经6个月的工程对比试验应用表明,有效提高了含砂低液限粉土路堤边坡抗冲刷能力。 In view of the problem of poor stability of low-liquid-containing silt sand and weak anti-scouring ability of embankment slope and the special geography and climatic conditions of Xinhe expressway, according to the characteristics of sandy silt with low liquid limit silt, Based on the principle, the anti-scouring protection of embankment slope is carried out by self-developed PST anti-scouring agent. After six months of comparison, the application shows that it can effectively improve the anti-scour ability of embankment slope with sand and low liquid limit.