In Chengde area, water table is shallow, gravel bed is the main aquiferous layer and its penetrability coefficient is comparatively large, settlement radius caused by dewatering is large as well.

  • 承德地区地下水位较浅,含水层主要为圆砾层,并且渗透系数较大,基坑降水引起的地面沉降半径也较大。

  • 互联网摘选 2025-01-19 23:26:06

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