钻孔桩基础施工质量控制

文章介绍了巨龙大道跨线桥使用冲击钻机进行桩基础施工的全过程和保证灌注桩质量的控制技术:必须抓好围堰筑岛和桩位控制、护筒埋设,选择合适的钻机和泥浆比重、流量,抓好清孔和灌注水下混凝土质量,对成桩质量进行了检测。对钻孔桩的清孔标准、地质情况的判断、泥浆的净化等问题提出了见解。

The quality control of the foundation of bored piles

This aticle introduced the whole process of the impacting drill being used for the pile foundation construction and the control technology of the quality assurance of the priming piles in the process of the construction of the Dragon Arenue Bridge——the construction of the island around the weir,the control on the site of the pile and laiding the casing tube must be done well,appropriate drilling machine and appropriate proportion and flow of the mud must be choosed,cleaning up piles and the quality of priming the underwater concrete must be done well,the quality of piles must be detected.And this article put forward the views of the standard of cleaning up bored peles,the judgment of geological conditions,the purification of the mud and other problems.