摘要
本文通过分析地质条件,对三种常用钻孔机械试打,通过比选,最终确定施工过程中结合使用GPS-18和GP-25型钻孔桩机械,很好地避免了坍孔、弯孔、缩孔、卡钻、掉钻、挂笼、符笼、翻浆不顺、堵管等质量缺陷的产生,质量优良,取得良好的社会及经济效益。
Through analysis of geological conditions, the three kinds of commonly used drilling machineries are tried out. By comparison, it is finally decided to use GPS-18 and GP-25 type drilling pile machinery in the construction process. In this way, the quality defects such as collapse, curved hole, shrinkage, jamming, falling, hanging cage and so on can be avoided, and the quality is good, thus achieving good social and economic benefits.
出处
《价值工程》
2016年第16期150-152,共3页
Value Engineering
关键词
钻机
漂石
钻孔灌注桩
drilling machine
erratic boulders
bored piles
