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《Chinese Jounal of Geotechnical Engineering》 2003-05
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Application of awning to roadway engineering in permafrost regions

FENG Wenjie1,MA Wei1,ZHANG Luxin1,2,WU Zhijian1ns Environmental and Engineering Research Institute,the Chinese Academy of Sciences, Lanzhou 730000,China; 2.QinghaiTibet Railway Headquarters of Railways Ministry, Golmud 816000, China)  
Based on the model test data indoors, combined with the numerical calculations and the measured temperatures of air and permafrost,and the test data of roadbed in Fenghuoshan, the protecting effects of the awning on the permafrost table along the road and railway in permafrost regions are compared. The superiority and feasibility of the awning are confirmed. The awning can resist the solar radiation to land surface effectively, and the ground surface temperature can descend 8 ℃~15 ℃, with a maximum difference of 24 ℃.The awning is very important to the safety of roadway.
【Fund】: 国家自然科学基金重点资助项目(90102006);; 中科院知识创新工程项目(KZCX1-SW-04;KZCX2-306);; "973"国家重点基础研究发展规划项目(2002CB412704)
【CateGory Index】: U418.5
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