土工合成材料加筋砂垫层减小软土地基沉降试验研究

Application of geosynthetics-reinforced sand blanket to settlement reduction of soft ground

摘要: 结合我国第一条客运快速铁路的建设(Vmax≥200km h),在一个长约324m的试验段内,设计了4种不同形式的土工合成材料加筋砂垫层用于软土地基的浅层加固处理,分别测试了经不同土工合成材料加筋砂垫层处理后的软土地基在上部路堤荷载作用下的沉降变形,格栅拉力和路堤基底压力等数据。

Abstract: Four types of reinforced sand blanket were designed within the test embankment of 324 m in length based on the construction practice of the tirst express passenger line with Vmax≥200　km/h in china. Ground settlement, vertical compressive stress at the bottom of embankment, and tension stress in geosynthetics reinforcement were recorded after original soft ground were treated with geosynthetics-reinforced sand blanket.