It reveals the stress field,displacement field and plastic deformation caused by freezing and expansion of the migrating pingo and presents the oil pipe bending deformation caused by t.

 
  • 青藏高原北部常年凍土區沿活動(dòng)斷裂發(fā)育有移動(dòng)冰丘,其對輸油管道、橋梁、涵洞等工程設施具有破壞作用。
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