干旱地区农业研究
榦旱地區農業研究
간한지구농업연구
Agricultural Research In The Arid Areas
2015年
5期
135-139
,共5页
古德曼模型%渠道%冻胀%有限元模拟
古德曼模型%渠道%凍脹%有限元模擬
고덕만모형%거도%동창%유한원모의
Goodman model%canal%frost heaving%finite element simulation
为了探究渠道衬砌冻胀破坏的机理，利用有限元软件ABAQUS对梯形渠道的冻胀过程进行了先热后力的数值模拟。在模拟过程中分为考虑古德曼接触的模型和不考虑接触的模型，将得出的结果分别与原型渠道的数据相对比，结果表明，考虑古德曼接触的模型更符合实际情况，能够很好地解释渠道冻胀破坏的位置常在渠道底板中间以及距离坡脚1／3坡板处的现象，其所得结果可以应用于渠道的抗冻胀设计。
為瞭探究渠道襯砌凍脹破壞的機理，利用有限元軟件ABAQUS對梯形渠道的凍脹過程進行瞭先熱後力的數值模擬。在模擬過程中分為攷慮古德曼接觸的模型和不攷慮接觸的模型，將得齣的結果分彆與原型渠道的數據相對比，結果錶明，攷慮古德曼接觸的模型更符閤實際情況，能夠很好地解釋渠道凍脹破壞的位置常在渠道底闆中間以及距離坡腳1／3坡闆處的現象，其所得結果可以應用于渠道的抗凍脹設計。
위료탐구거도츤체동창파배적궤리，이용유한원연건ABAQUS대제형거도적동창과정진행료선열후력적수치모의。재모의과정중분위고필고덕만접촉적모형화불고필접촉적모형，장득출적결과분별여원형거도적수거상대비，결과표명，고필고덕만접촉적모형경부합실제정황，능구흔호지해석거도동창파배적위치상재거도저판중간이급거리파각1／3파판처적현상，기소득결과가이응용우거도적항동창설계。
In order to explore the mechanism of frost heaving damage for canal lining ,using the finite element soft-ware ABAQUS ,carried out the numerical simulation through first thermal and after force for the process of frost heaving on trapezoidal canal .In the simulation process can be divided into two conditions as considering Goodman contact model and non-consider contact model .The obtained results were compared with the prototype canal data ,respectively .The re-sults showed that:The considering Goodman contact model was more conformed to the actual situation and can be well explained the phenomenon as the frost heaving damage position was at the middle of the canal bottom plate and 1/3 of the slope plate distance foot of 1/3 slope plate .The obtained results can be used in design for anti-frost in canals .
