2015年8月下 施工技术 第44卷第16期 CONSTRUCTION TECHNOLOGY 93 D0I:10.7672/sgj82015160093 汉江流域近堤浅滩深埋式承台支护体系 设计与受力性能研究 周鹏华 (中建三局集团有限公司工程总承包公司，湖北武汉430070) [摘要]以武汉江汉六桥工程防洪大堤内浅滩区域深埋式承台施工为背景，对承台开挖过程中深基坑稳定性与大 堤稳定性两者之间的相互关系进行分析，通过不同的支护方案进行对比分析，选择最合理的支护方案解除承台基 坑两侧不平衡土压力，保证承台施工安全及防护大堤稳定.结合实际工况，分析不平衡土压力对选定的承台深基 坑支护结构的影响，并在施工中对支护体系及防洪大堤进行位移监测，研究、验证了选定支护体系的安全性. [关键词]桥梁工程；深埋承台；支护结构；不平衡土压；稳定性；位移 [中图分类号]U443.2 [文献标识码]A[文章编号]1002-8498(2015)16-0093-05 Supporting System Design and Stress Performance Research of Deeply Buried Cap at Shoal Area Along Hanjiang River Zhou Penghua General Construction Company of CCTEB Group Co.Lad.Wuhan Hubei 430070 China) Abstract:Taking deeply buried cap construction at shoal area of flood control embankment in Wuhan Jianghan Sixth Bridge project as background the relationship of stability of deep foundation excavation and the embankment during the cap excavation is analyzed.By paring analysis of different retaining schemes the most rational retaining scheme is selected to eliminate unbalanced soil pressure both side of foundation which can assure the cap construction safety and embankment stability.Combining with practice conditions the influence of unbalance soil pressure to retaining structure of cap's deep foundation excavation was analyzed the displacement monitoring of retaining system and embankment was done the safety of retaining system was studied and verified. Key words:bridges;deeply buried cap;retaining structure;unbalance soil pressure; stability;displacement...
汉江流域近堤浅滩深埋式承台支护体系设计与受力性能研究.pdf
