The Yanchuan sewage trunk maintenance supporting project has solved the problem of long-term high water level operation in the lower reaches of Yanchuan sewage main pipe,and repaired the damaged point of the current pipeline.The supervision is very important to ensure the construction quality and safety of the project.The key points for the construction preparation stage,construction stage and post-construction work stage were put forward,including the work contents such as seamless steel pipe pile,crown beam,jet grouting pile,internal support and earthwork,etc.,the work methods such as inspection,side station and witness inspection,and the monitoring measures for temporary power consumption,protection around foundation pit,and pit measurement and monitoring,etc.The research results can provide practical guidance and reference for the construction supervision of deep foundation pit.
deep foundation pitconstructionsupervisionsafety measure
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