越南河内-海防高速公路路基沉降预测模型研究

摘要

越南河内-海防高速公路是越南在建的第一条高速公路，为中越两国政府签订的“两廊一圈”宏伟规划的实施工程之一，它的建设将使越南的公路交通运输更加顺畅和快捷，对于促进越南的经济发展、改善投资环境具有重要意义。为了保证越南河内-海防高速公路保时保量完工，必须开展河内-海防高速公路路基沉降规律研究，用于指导河内-海防高速公路的施工和控制工后沉降，确保路基的安全和稳定。选择河内-海防高速公路某标段典型路基段面沉降观测数据进行分析，并采用双曲线模型、指数模型、Logistic 模型和 Weibull模型对路基沉降进行了预测，分析各模型对该工程软土地基沉降预测的适用性，提出 Weibull模型的结果更符合实际工程实际。%Hanoi-hai phong expressway project is the first expressway under construction in Viet-nam,which belongs to the grand plan of“Two corridors and one Ring”.Vietnam’s highway transporta-tion will be more smoothly and quickly when the construction is finished and it is very important to Viet-nam's economic development and the improvement of the investment environment.In order to ensure that the project is able to be completed on schedule and on time,and insure the security and stability of the embankment,the roadbed settlement rules of Hanoi-Haiphong expressway is necessary to be studied.In the paper based on the analysis of the settlement monitoring data of typical tenders of Hanoi-Haiphong ex-pressway,the settlement can be predicted by hyperbolic model,exponential curve model,Logistic model and Weibull model.By comparing the engineering applicability of the soft soil foundation settlement pre-diction models,the result that Weibull model is the most suitable model for this project is proposed.