摘要
结合长春市某桥梁钻孔灌注桩基础施工实例,介绍了大漂石和卵石地层的筒钻法钻进原理、潜孔锤钻进工艺、岩心聚能爆破工艺、以及筒钻回转切石工艺等。工程实践表明,筒钻法对大漂石和卵石地层钻进成孔是非常有效的,这为该类地层的顺利成孔积累了成功的经验。
Taking bored pile construction of bridge engineering in Changchun as a sample, uns paper introduces the drilling principle, down - the - hole hammer drilling technique, shaped - charge explosion technology and cutting rock technology about tubular drill. Engineering practice shows that tubular drill is a high efficient drilling method, which has accumulated experience on all right drilling hole for the large floating rock and screed stratum.
出处
《常州工学院学报》
2007年第5期5-7,共3页
Journal of Changzhou Institute of Technology
关键词
漂
卵石层
筒钻法
聚能爆破
floating rock and screed stratum
tubular drill
shaped-charge explosion
