线型工程施工过程的数值模拟及变形分析——以某公路工程路基回填为例

Numerical Simulation and Deformation Analysis of Linear Project Construction Process——Taking a highway subgrade backfill engineering as an example

在公路和铁路等线形工程建设中,经常会遇到不良地质地段,为了保证路基的稳定性,往往采取路基回填的办法进行地基处理。路基回填施工会引起侧向位移和竖向沉降,这是施工过程中必须预防和解决的。此文以某高速公路某段路基回填工程为例,针对回填方案,采用FLAC3D数值模拟软件建立数值模型,对施工过程中可能产生的沉降和位移进行模拟计算与分析。根据模拟计算与分析结果,提出处理方案指导施工,加强过程控制,降低施工和安全风险。

During the construction of highway and railway line, it often meets bad geological location. In order to guarantee the stability of the subgrade, the subgrade backfill method are often used to take the subgrade treatment. Subgrade backfill construction can cause lateral displacement and vertical settlement, which is in the process of construction, it should be prevented and solved. Taking a highway subgrade backfill en- gineering as an example, in view of the backfill scheme, the article uses numerical simulation software FLAC3D to set up numerical model, calculate and analyze the settlement and displacement. According to the results of simulation, calculation and analysis, the treatment scheme is put forward to guide construc- tion, strengthen the process control and reduce the construction and security risks.