基坑围护施工中特大自来水管道保护技术

Protection Technique for Large Water Supply Pipeline in Foundation Pit Support

摘要:

在市政管线周边基坑围护施工，对管线的保护至关重要。通过设计论证对比分析，确定稳妥的围护结构体系，控制施工参数，确保施工过程中的土体稳定，制定挖土顺序，采用后拆斜撑技术，有效地保证了DN1800自来水管道的安全，达到了预期的效果。

Abstract:

Protection measures are very important in foundation pit support around municipal pipeline. Design demonstration and comparative analysis were made to determine the secure supporting structure system, control the construction parameters, ensure the soil stability, and make the excavating order. Technology of late-dismantlement for lateral support was adopted to ensure the safety of water supply pipeline.