摘要
针对青海省2013年需要新建、改建的高速公路等项目,以109国道青藏高原橡皮山附近季节性冻土区公路路基为研究对象,利用ANSYS有限元模拟分析软件建立数学模型,经过分析后得出该区域路基土体原始温度场。分析结果表明:青藏高原季节性冻土区路基土体内部温度低于0℃的月份为每年的11、12月和翌年1、2和3月,最低温度达-15℃,而在地表2 m以下地温高于0℃。
Based on new construction and renovation highway project of Qinghai in 2013 ,the roadbed of state road No. 109 near Xiang＇pi Mountain,which belongs to seasonal permafrost of the Qinghai- Tibet Plateau,was selected as object. Mathematical model was established using ANSYS finite ele- ment analysis software, and the original temperature field of roadbed was derived. The analysis results show that internal temperature of roadbed soil is below 0 ℃ from November to March. The minimum temperature is - 15 ℃ ,but 2 m below the surface the temperature is higher than 0 ℃.
出处
《青海大学学报（自然科学版）》
2013年第5期20-25,共6页
Journal of Qinghai University(Natural Science)
基金
教育部2012春晖计划科研基金项目(Z2012088)
青海大学中青年基金资助项目(2012-QGY-9)
关键词
季节性冻土
路基
温度场
数值模拟
seasonally frozen
roadbed
temperature field
numerical simulation
