拼装式涵洞施工中高温冻土地基温度场研究

Study of Ground Temperature Field while Construction of Precast Installed Culvert in Warm Permafrost

基于对清水河地区拼装式涵洞试验工程地基温度的变化进程的监测,考虑了涵洞基础混凝土灌注后的水化热影响,分析了冻土活动层中温度变化和水热的运输,研究了一个冻融循环过程中高温冻土地基温度场的变化规律,为涵洞的设计、施工、维护加固提供参考.

Based on the observation of variable process of ground temperature of the experimental precast installed culvert built in the Qingshuihe permafrost area, the temperature change and the heat-moisture migration in permafrost active layer are analyzed by taking the effect of the hydration heat of concrete of culvert foundation into account, The rule of thermal regime of warm permafrost under the construction disturbance in one freezing-thawing circular is studied. The conclution achieved can provide reference for design,construction and maintenance.