XPS轻质材料在地铁保护区工程中的应用方法

Application of XPS Lightweight Materials in Metro Protection Area Engineering

地铁保护区内的路基工程必须采取稳妥的填筑方案来保证路基质量和地铁结构的安全。以深圳地铁保护区内某路基工程为例,分析了此路基工程的难点和要点,并提出了应对措施,在此基础上提出了采用XPS轻质材料进行换填的施工方案,介绍了此方案的优势,并采用有限元软件对此路基工程的有关数据计算过程进行了数值模拟。数值分析的结果表明,采用此填筑方案,地铁结构变形满足规定要求,工程施工过程中地铁结构安全稳定。

The subgrade engineering in the subway protection area must adopt a reliable filling scheme to ensure the quality of subgrade and the safety of subway structure.Taking a subgrade project in Shenzhen Metro protection area as an example,this paper analyzes the difficulties and main points of the subgrade project,and puts forward the countermeasures. On this basis,it puts forward the construction scheme with XPS light material for filling and filling,introduces the advantages of this scheme,and adopts the finite element software to calculate the related data calculation process of the subgrade project. The numerical simulation was performed.The results of numerical analysis indicate that the deformation of subway structure can meet the requirements by adopting this filling scheme,and the subway structure is safe and stable during the construction process.