土工基础

土工基础 ›› 2019, Vol. 33 ›› Issue (6): 639-641.

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考虑工后沉降影响的降水设计实例

疏排法基坑降水作业后，地下水位的降低将使原水位面以下土体的自重应力增加，造成相应的地表或深层土体沉降，对周边建筑物、浅埋的地下管线及行车路面会构成不同程度的危害。因此，在基坑降水设计阶段，对工后沉降危害的评估是非常必要的，同时，可提出相应的措施以控制工后沉降。   

  1. （1.江西省地矿局物化探大队，南昌 330002；2.武汉中力岩土工程有限公司，武汉 430072）
  • 收稿日期:2018-08-06 修回日期:2019-05-06 出版日期:2019-12-28 发布日期:2019-12-28
  • 作者简介:吴陆军（1967-），男，工程师，研究方向为岩土工程。

De-watering Design Considering the Post Construction Settlement

Ground subsidence might be occurred after the dewater operation around the deep excavation site. The ground movement might adversely affect the adjacent building foundations, pavements and underground utilities. It is therefore, during the dewater design stage, the effect of the adjacent environment should be appropriately evaluated.   

  1. (1.Division of Geophysical Explorations, Jiangxi Bureau of Geology and Mineral, Nanchang 330002;
    2.Wuhan Zhongli Geotechnical Engineering Co., Ltd., Wuhan 430072)
  • Received:2018-08-06 Revised:2019-05-06 Online:2019-12-28 Published:2019-12-28

摘要： 疏排法基坑降水作业后，地下水位的降低将使原水位面以下土体的自重应力增加，造成相应的地表或深层土体沉降，对周边建筑物、浅埋的地下管线及行车路面会构成不同程度的危害。因此，在基坑降水设计阶段，对工后沉降危害的评估是非常必要的，同时，可提出相应的措施以控制工后沉降。

关键词: 基坑降水, 地面沉降, 工程实例

Abstract: Ground subsidence might be occurred after the dewater operation around the deep excavation site. The ground movement might adversely affect the adjacent building foundations, pavements and underground utilities. It is therefore, during the dewater design stage, the effect of the adjacent environment should be appropriately evaluated.

Key words: Deep Excavation Dewatering, Ground Subsidence, Case History

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