论文部分内容阅读
钻孔灌注桩目前在水利工程中应用十分广泛,但因属隐蔽工程,成桩后质量检查比较困难,且由于软土的特殊性质,经常会出现一些质量问题。根据本人的施工实践,对其中一些主要的质量通病进行剖析,并提出相应的防治措施,期望通过与同行们相互交流,达到提高施工水平的目的。1缩径1．1产生的原因:①清孔不彻底,泥浆中含泥块较多,再加上终灌拔管过快,引起桩顶周边夹泥,导致保护层厚度不足。②孔
Bored piles are widely used in water conservancy projects at present. However, due to concealed works, it is difficult to conduct quality inspection after piling, and due to the special nature of soft soil, some quality problems often occur. According to my construction practice, some of the major quality problems are analyzed and corresponding prevention and control measures are put forward. Hopefully through the interaction with colleagues, we can achieve the purpose of improving the construction level. 1 reduced diameter 1.1 causes: ① clear hole is not complete, the mud contains more mud, coupled with the final irrigation extubation, causing the pile top around the mud, resulting in protection layer thickness is not enough. ② hole