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在软土层较厚的河流、沟渠上修建桥梁大多采用灌注桩基础,在施工中如果处理不当,就会发生孔壁坍塌、断桩等问题,严重影响工程质量。通过几年来施工经验的总结,笔者认为在施工中应注意以下几个方面的问题: 一、钻孔 1.构建平台。渠、河道上进行钻孔需先修建平台,平台宽度要大于桥梁宽5～7m,以便于在施工桥梁上部
In the thick soil of soft soil layer, most of the ditches on the ditch are filled with bored pile foundation. If they are not properly handled during the construction, hole wall collapse and broken pile will occur, which will seriously affect the quality of the project. After several years of construction experience summary, I believe that in the construction should pay attention to the following aspects: First, drilling 1. Build the platform. Drainage, river drilling on the need to build a platform, the width of the platform is greater than the width of the bridge 5 ~ 7m, in order to facilitate the construction of the upper bridge