水利与建筑工程学报
水利與建築工程學報
수리여건축공정학보
TECHNIQUE OF SEEPAGE CONTROL
2014年
3期
182-184,198
,共4页
寒区隧道%保温隔热层%传热学%数值模拟
寒區隧道%保溫隔熱層%傳熱學%數值模擬
한구수도%보온격열층%전열학%수치모의
cold region tunnel%heat-insulating layer%heat transfer theory%numerical simulation
寒区隧道保温隔热层的设置是至关重要的一环,对隧道的顺利施工和安全运营起决定性的作用。根据传热学相关理论知识,对寒区隧道的保温隔热层材料导热系数进行推导,得出材料导热系数或保温层厚度的计算方法,并运用公式法和数值分析得到了在相同条件下,保温层设置在隧道里面的保温效果要比设置在隧道衬砌表面好的结论。
寒區隧道保溫隔熱層的設置是至關重要的一環,對隧道的順利施工和安全運營起決定性的作用。根據傳熱學相關理論知識,對寒區隧道的保溫隔熱層材料導熱繫數進行推導,得齣材料導熱繫數或保溫層厚度的計算方法,併運用公式法和數值分析得到瞭在相同條件下,保溫層設置在隧道裏麵的保溫效果要比設置在隧道襯砌錶麵好的結論。
한구수도보온격열층적설치시지관중요적일배,대수도적순리시공화안전운영기결정성적작용。근거전열학상관이론지식,대한구수도적보온격열층재료도열계수진행추도,득출재료도열계수혹보온층후도적계산방법,병운용공식법화수치분석득도료재상동조건하,보온층설치재수도리면적보온효과요비설치재수도츤체표면호적결론。
The construction of heat-insulating layer is an important part of cold region tunnels ,and it plays a decisive role during the construction and operation periods .Based on heat transfer theory ,some formulas of the thermal conductiv-ity were deduced here ,and the formula method and numerical simulation were used to obtain the conclusion .Under same conditions ,the insulation effect of the heat-insulating layer inside tunnel is better than that on tunnel lining surface .