The change of heat and water process of the active layers at the engineering sites is intenser than that at the original surface site, and the permafrost stability of the engineering sites is lower than that at the original surface site.

 
  • 凍融期間工程活動(dòng)場(chǎng)地活動(dòng)層的水熱狀態(tài)變化要比天然場(chǎng)地強烈而且差異較大,工程活動(dòng)場(chǎng)地凍土的穩定性比天然場(chǎng)地低。
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