在城市建成区的市政桥梁施工过程中桩基避让地下管线的处理方案

Treatment Scheme for Pile Foundation Avoiding Underground Pipelines during Construction of Municipal Bridges in Urban Built-up Areas

摘要:

在城市建成区新建市政桥梁的过程中，时常发现桥梁桩位处存在勘探资料及图纸未提及的地下管线，或是桥梁基础位置直接与管位重叠，或是桥梁基础施工时可能对既有管线造成多重不利影响等等。若不能及时处理，对工程进度和造价影响很大。通过工程实例，以监理工程师的角度出发来探讨化解这一困局的方法，期望能为在工程中遇到类似情形提供的不同解决方案。

Abstract:

In the process of building the municipal bridges in urban built-up areas, it is often found that there are the underground pipelines not mentioned in the exploration data and drawings at the bridge pile location, or the bridge foundation location directly overlaps with the pipe location, or the bridge foundation construction may cause multiple adverse effects on the existing pipelines, etc. If not handled in time, it will greatly affect the project progress and cost. The method of solving this dilemma is discussed from the perspective of supervision engineers through engineering examples, hoping to provide the different solutions for similar situations in the project.