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以下主要介绍了泥浆护壁钻孔灌注桩施工工艺流程和质量监理控制要点,并对各个环节进行了阐述。泥浆护壁钻孔灌注桩施工技术含量高,影响因素多,一旦在施工当中稍有不甚或控制不严,很容易出现一些质量事故,使整个工程的基础受到影响,严重一点出现返工将带来较大的损失。常见的且危害性较大的事故主要有坍孔和断桩,此外还可能出现弯孔、斜孔、缩孔、梅花孔、卡钻、埋钻和掉钻等现象,为尽量减少事故,施工中必须做到分工明确,密切配合,操作规范,措施到位。下面结合本人的施工经验,就常出现的一些事故原因进行分析,并制定出相应的处理措施。
The following mainly introduces the construction process of mud retaining wall bored piles and quality supervision control points, and all links are described. Construction of mud retaining wall bored piles is characterized by high content and many influencing factors. Once there is a slight or poor control during the construction, some quality accidents are easy to occur, which will affect the foundation of the whole project. Big loss. Common and more harmful accidents are mainly collapse and broken pile, in addition, there may be bent hole, inclined hole, shrink hole, plum blossom hole, stuck drill, buried drill and dropped drill phenomenon, in order to minimize accidents, construction Must be clear division of labor, work closely with the norms, measures in place. The following combination of my own experience in construction, often appear on the cause of some accidents were analyzed and worked out the appropriate treatment measures.