【摘要】 长螺旋钻孔压灌混凝土桩是在长螺旋干钻法基础上发展的压灌混凝土桩成桩技术,混凝土是从钻杆中心压入孔中,成孔、成桩由一机一次完成。结合工程具体实例,详细阐述了长螺旋钻孔压灌混凝土桩的施工方法以及成桩施工过程中经常遇到的质量问题,针对这些问题提出了有效的质量控制措施。更多还原

【Abstract】 The guncreting pile construction technology using long auger is based on the dry long auger boring method. The concrete is pressed into holes from center of the rod. The piling is completed by only one machine once time.The construction method and some commonly encountered quality problems are expounded. The effective measures of quality control are presented.更多还原