Evaluating model of frozen soil environment change under engineering actions

作     者：吴青柏 朱元林 刘永智 

出 版 物：《Science China Earth Sciences》 (中国科学（地球科学英文版）)

年 卷 期：2002年第45卷第10期

页      面：893-902页

核心收录：

学科分类：07[理学] 0705[理学-地理学] 070501[理学-自然地理学] 

基　　金：This work was supported by the NSFC (Grant No. 90102006) the Knowledge Innovation Program of the Chinese Academy of Sciences (KZCX-SW-04) the Creative Project of CAREER] (Grant Nos. CACX210047 and CACX210086) Post Doctoral Fund of Nanjing Uni 

主　　题：engineering actions, frozen soil environment, permafrost stability, thermal thaw sensibility. 

摘      要：The change of frozen soil environment is evaluated by permafrost thermal stability, thermal thaw sensibility and surface landscape stability and the quantitatively evaluating model of frozen soil environment is proposed in this paper. The evaluating model of frozen soil environment is calculated by 28 ground temperature measurements along Qinghai-Xizang Highway. The relationships of thermal thaw sensibility and freezing and thawing processes and seasonally thawing depth, thermal stability and permafrost table temperature, mean annual ground temperature and seasonally thawing depth, and surface landscape stability and freezing and thawing hazards and their forming possibility are analyzed. The results show that thermal stability, thermal thaw sensibility and surface landscape stability can be used to evaluate and predict the change of frozen soil environment under human engineering action.