摘要
为了解决在受限区域铁路软土基坑工程中工点施工难度大、施工周期短、环境要求高的技术难题,介绍了现行泡沫轻质土应用概况,并通过具体工点分析在铁路软土基坑工程中采用不同地基加固措施的优缺点。定性的分析得出钻孔桩深层处理方案虽然满足相关技术要求,但在施工周期、环境要求和工程造价等方面存在一定的不足之处;定量的分析泡沫轻质土换填方案的工后沉降量,其工后沉降量为12 mm,满足工点的需求,从而验证了泡沫轻质土换填方案的可行性,同时也体现了泡沫轻质土换填方案有着无法比拟的优越性。
In order to solve the technical problems of difficult construction,short construction period and high environmental requirements in the railway soft soil foundation pit engineering in the restricted area,this paper presents a series of problems. The application of foam lightweight soil is introduced. The advantages and disadvantages of adopting different measures for foundation reinforcement in railway soft soil foundation pit engineering are analyzed through specific work points. Through qualitative analysis,it is concluded that although the deep treatment scheme of bored pile meets relevant technical requirements,it has some deficiencies in construction period,environmental requirements and engineering cost. Quantitative analysis of the post-construction settlement of the foam light soil replacement plan,the post-construction settlement is 12 mm,to meet the needs of the work site,thus verifying the feasibility of the foam light soil replacement plan. At the same time,it also shows that the foam lightweight soil replacement program has incomparable advantages.
作者
周凯
Zhou Kai(China Railway Liuyuan Group Co.,Ltd.,Tianjin 300308,China)
出处
《山西建筑》
2020年第5期59-61,共3页
Shanxi Architecture
关键词
泡沫轻质土
路基
软土地基
高速铁路
foam light soil
subgrade
soft soil foundation
high speed railway
