【作者】 冯文杰； 马巍； 盛煜；

【Author】 FENG Wenjie MA Wei SHENG Yu (State Key Laboratory of Frozen Soil Engineering,CAREERI,CAS,Lanzhou 730000)

【机构】 中国科学院寒区旱区环境与工程研究所冻土工程国家重点实验室；

【摘要】 由于全球气温的升高,导致多年冻土区冻土的退缩与融化,各种主动保护冻土的措施也相应地应用到实际工程中,遮阳措施就是其中之一。通过室内实验、数值分析以及青藏公路、青藏铁路和青康公路实际工程措施的观测结果对比分析,路基边坡遮阳板措施能够有效降低路基表面温度,使得路基土体温度的提高得以有效控制,同时能够明显降低路基土体的人为上限,确保道路的安全畅通。更多还原

【Abstract】 Due to the globe warm,lead the permafrost into the shrink and thaw,almost all the various initiatives to protect the permafrost measures were adopted to the actual engineering now.The shading was the one of the main measures,was be used on the embankment side slope on permafrost regions.Contrast with the indoor test data,numerical value analysis result and the field observation,we can draw out the conclusion:The embankment side slope shading measure can reduce the roadbed surface temperature effectively,and limit the embankment temperature elevation obviously,and at the same time it can descend the roadbed artificial permafrost table remarkably.All of this can ensure the road safety and smoothed.更多还原