多年冻土区公路路面路基管理系统设计

我国多年冻土地区公路受气温及水分变化等影响,公路病害发生严重。为了使公路养护部门合理利用资金,最大限度避免冻土病害,有必要建立冻土区公路路基路面评价预测系统。文章介绍了冻土区公路路基的评价指标和评价方法。在常规路基路面评价预测的方法上,还使用了马尔可夫等预测方法,以适合冻土区公路路面破坏机理复杂、影响因素多的实际情况。

Design of Pavement and Subgrade Management System for Permafrost Roads

The highway has suffered a lot due to the change of temperature and water in permafrost area.To ensure reasonable use of limited fund by the highway maintenance department and avoid frozen soil defect as much as possible,it is necessary to set up a pavement and subgrade management system for permafrost road.The Paper presents the evaluation indicators and evaluation method for highway subgrade in permafrost area.Under this system,Markov forecast method has been adopted beside regular subgrade and pavement evaluation/forecast method,so as to adapt to the actual condition of permafrost road pavement that has complicated failure mechanism and multiple impact factors.