钻孔灌注桩旋挖干取土成孔施工技术  

CONSTRUCTION TECHNOLOGY OF ROTARY DRILLING HOLE DRY IN BORED FILLING PILE

作　　者：王玮 

机构地区：[1]南京建设工程项目投资管理有限公司,南京210002

出　　处：《建筑技术开发》2012年第3期36-38,共3页Building Technology Development

摘　　要：根据不同的地层及地下水位情况,旋挖钻成孔灌注桩可采用干取土成孔和泥浆护壁成孔工艺。干取土成孔工艺不需泥浆护壁,孔壁不产生泥皮,孔底渣土厚度小,利于桩基承载力的发挥。同时,施工效率高,无泥浆排放,对环境污染小,尤其适合于城市建设基础的施工。According to the different strata and ground water level,construction of rotary drilling hole may using process with drilling pile dry and mud. Drilling pile dry without mud, hole wall do not produce sludge, thickness of waste in hole bottom is small,conducive to play the bearing capacity of pile. Meanwhile,high construction efficiency, mud - free emission,pollution of small,especially suitable for construction of urban construction foundation.

关 键 词：钻孔灌注桩 旋挖钻孔 干取土 

分 类 号：TU753.3[建筑科学—建筑技术科学]