Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

Preliminary Study on Technology of Cooling Foundation in Permafrost Regions

MA Wei,\ CHENG Guo\|dong,\ WU Qing\|bai (State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China)  
An active measure of protecting frozen soils, namely cooling foundation, is put forward in order to face the severe challenge of high temperature frozen soil and world warming, and to insure the stability of engineering in cold regions. The feasibility of the measure is analyzed and discussed in the aspects of roadbed of ventilation duct, the ballast revetment and ballast roadbed, the roadbed of heat pipe, the roadbed of awning, development and application of heat preservation materials of thermal semiconductor and application of artificially freezing technology, respectively. It is found that as a technology of actively adjusting and controlling temperature in foundation, the measure is effective in different ranges, able to effectively raise permafrost table and can insure the stability of frozen soil foundation. So, it is a feasible method and can be applied to constructions in cold regions.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved