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Rationality Analysis of the Design and Calculation of Dewatering in GuoMao Station of Beijing Metro Line 10
Author(s): LIU Wu
Pages: 76-
83
Year: 2016
Issue:
1
Journal: China Investigation & Design
Keyword: 地铁国贸站; 国贸桥及连续梁; 降水计算; 降水沉降预测与监测;
Abstract: 北京地铁10号线国贸站采用暗挖法施工,下穿南北向国贸桥、东西向大北窑桥,并下穿地铁1号线,其中,南北向国贸桥的南段为连续梁结构,对不均匀沉降极为敏感,且工程所在地段地下管线密集,附近重要建筑林立.针对工程具有站体开挖深度内涉及多个含水层、降深大、排水量大的特点,本着降水均匀沉降原则,对主站体及高架桥连续梁区段采用适当扩大降水范围的办法,进行降水设计,以保证暗挖站体的正常施工,并避免因降水造成高架桥区及已有地铁1号线结构的不均匀沉降,经实践证明,效果良好.
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