论文部分内容阅读
1、前言我公司专利ZL200320103219.1“长螺旋成孔压灌混凝土成桩后插钢筋笼及其输送装置”是2003年11月11日申请,于2004年12月8日由中华人民共和国国家知识产权局授权。证书号663431。目前,在工业与民用建筑工程的地基基础施工中,利用长螺旋钻机、强制式混凝土搅拌机、混凝土输送泵以及混凝土输送管等配套设施进行的素混凝土桩或CFG桩施工的装置已得到了广泛的使用。该装置采用长螺旋钻机成孔,并利用长螺旋钻具的中心管将混凝土高压泵入孔底,然后边压灌边提升螺旋钻具,连续作业成孔成桩一次完成。其机械化作业程度高,施工速度快,成本低,并对于有卵砾石、流砂、地下
1, Preface My company’s patent ZL200320103219.1 “long spiral pore pressure irrigation concrete piles into the post-reinforced steel cage and its delivery device ” is November 11, 2003 application, on December 8, 2004 by the People’s Republic of China State Intellectual Property Office authorized. Certificate No. 663431. At present, in the foundation construction of industrial and civil engineering projects, the construction of plain concrete piles or CFG piles using long auger rigs, compulsory concrete mixers, concrete transfer pumps and concrete conveying pipes and other facilities has been widely applied use. The device uses a long auger drilling machine into the hole, and the use of long auger center pipe to pump high-pressure concrete into the bottom of the hole, and then pressure irrigation edge lifting auger, continuous operation into the hole into a pile to complete. The mechanization of a high degree of construction speed, low cost, and for gravel, sand, underground