复杂地层采用长螺旋压灌工艺的技术突破  

Technological breakthrough on application of long spiral drilling pressure grouting process in complex stratum

作　　者：马宁 张明 陈竹 Ma Ning;Zhang Min;Chen Zhu(Technical Innovation Engineering Department,HBIS Group Hansteel Company,Handan 056000,Hebe)

机构地区：[1]河钢集团邯钢公司技改工程部,河北邯郸056000

出　　处：《工程建设》2018年第9期58-61,共4页Engineering Construction

摘　　要：以邯钢第二原料场环保改造项目——混匀料场桩基工程为例,介绍了旋挖钻机成孔、冲击钻机成孔、反循环钻机成孔以及长螺旋钻孔压灌工艺。通过对其工艺的环保、经济、技术的综合比较,决定采用长螺旋钻孔压灌桩进行施工,为类似工程提供了参考。Taking for example the Hansteel second raw material stockyard environmental protection reconstruction project--the pile foundation project of blending yard stockyard, rotary drilling, percussion drilling, reverse circulation drilling and long spiral drilled press-grouting technique are described. Through the comprehensive comparison of the processes in terms of the environmental protection, economy and technology, it is decided to use the long spiral drilled press-grouting pile for the construction, which can provides example for similar projects.

关 键 词：A700钢筋混凝土桩 长螺旋成孔 穿越复杂地层 压灌混凝土 振捣后插钢筋 

分 类 号：TU753.3[建筑科学—建筑技术科学]