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时间:2020-06-19
《多年冻土区低层建筑地下室土基的解冻计算.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第5卷第3期黑龙江大学工程学报Vo1.5.No.32014年9月JournalofEngineeringofHeilongjiangUniversitySep.,2014DOI:10.13524/j.2095-008x.2014.03.070Calculationofthawingofthesoilfoundationswiththesurf一ace一basementsor一al’ow-n●Selbutlcll●ngsTerentyA.Kornilov,IgorI.Rozhin,Ekaterin
2、aA.Kononova,DmitryA.Grigoriev,AyynaN.Danilova(1.Engineering&TechnicalInstitute,M.K.AmmosovNorth—EasternFederalUniversity,Yakutsk677000,Russia;2.InstituteofOil&GasProblems,SiberianDivision,RussianAcademyofSciences,Yakutsk677980,Russia)Abstract:Thawing
3、ofpermafrostsoilfoundationsoflow—risebuildingswithsurfacebasementshasbeenstudiedbythemethodsofmathematicalmodeling.Themodeltakesintoaccountairtemperaturechanges,totalsolarradiation.surfacealbedo,thicknessofsnowcoverandchangesofcoefficientofheattransf
4、erbetweenatmosphereandtheEarthsurfaceduringayear.Theinfluenceofbuildingdimensions,thermalresistanceofplinthpanelandthermalconditionsofsoilondynamicsofthawedbowlhavebeeninvestiga—tedinthecomputationalexperiment.Comparativeassessmentoftheresultsofcalcu
5、lationofthedepthofthawingrevealedthatthedepthofthawcalculatedbyexistingstandards,isconsiderablyunderestimatedanddoesnotdependonthethermalresistanceofplinthpane1.Moreoverthestandardsdonottakeintoaccountinitialthermalconditionsofsoilandannualchangesofa
6、tmospherictemperature.Keywords:soilfoundations,low·risebuildings,permafrostandsoilconditions,computationalexperi—mentCLCnumber:TU475.2Documentcode:AArticleID:2095—008X(2014)03—0206—09多年冻土区低层建筑地下室土基的解冻计算TerentyA.Kornilov,IgorI.Rozhin,EkaterinaA.Konono
7、va,DmitryA.Grigoriev,AyynaN.Danilova(1.东北联邦大学工程技术学院,雅库茨克677000,俄罗斯;2.俄罗斯科学院西伯利亚分院石油和天然气研究所,雅库茨克677980,俄罗斯)摘要:对多年冻土区低层建筑地下室的解冻可通过数学建模的方法研究。该模型考虑了空气温度的变化、太阳总辐射、地表反照率以及一年中大气和地球表面之问的热传递系数的变化。建筑尺寸影响的研究,是基于基座面板的热阻和热条件土壤解冻动力学计算实验进行的。比较评估的计算融化深度结果显示,现有的解冻深度的
8、标准,大大低估了和不依赖于基座面板的热阻。此外,该标准不考虑初始土壤热状况和大气温度的年际变化。关键词:地基;低层建筑;多年冻土和土壤条件;计算实验Receiveddate:2014—05—29Biography:Mr.TerentyA.Kornilov,Russia,researchingfield:Permafrost,E—mail:bondarev@ipng.ysn.n1第3期TerentyA.Kornilov,etal:Calculationofthawingofthesoftfound
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