现浇沉井下沉施工验算及处理措施

Checking Calculation and Treatment Measures for Sinking Construction of Cast-in-Place Caisson

以我司承建的广州市某黑臭河涌整治工程为研究对象,利用沉井及顶管技术升级改造城市旧城区排水管网,从而达到治理黑臭河涌的目的。在因征地困难而无法进行明挖敷管时,通过研究沉井下沉系数理论验算及现场下沉技术处理,提供现场施工方案调整的依据。

Taking the renovation project of a black and smelly river in Guangzhou undertaken by our company as the research object,the drainage pipe network in the old urban area of Guangzhou is upgraded and transformed by the technology of open caisson and pipe jacking to achieve the purpose of black and smelly river treatment.However,when it is difficult to conduct open excavation and pipe laying due to land acquisition,the basis for site construction scheme adjustment is provided by studying the theoretical calculation of sinking coefficient of open caisson and the settlement technology treatment on site.