超大直径滚刀钻头在深圳金中环大厦桩基工程中的应用  

Application of Large Diameter Roller Cutter Bits in Pile Foundation of Shenzhen Jingzhonghuan High-rise Building

作　　者：杨建林[1] 杨荣斌 邹明 陈飞 

机构地区：[1]中国地质大学,湖北武汉430074 [2]江西省地质工程总公司,江西南昌330029

出　　处：《施工技术》2007年第2期101-103,共3页Construction Technology

摘　　要：深圳市金中环大厦为超大直径嵌岩桩基础,桩最大直径2800mm,持力层岩石坚硬,单轴抗压强度达140MPa,根据岩石破碎原理,改进设计大直径滚刀钻头,解决了大断面坚硬岩石钻进的技术难题,取得了较高的钻进效率。Shenzhen Jingzhonghuan high-rise building＇ s foundations adopt large diameter rock point pile, the pile＇s largest diameter is 2 800mm, beating stratum solid and uniaxial compressive strength is 140MPa. According to rock crushing mechanism to improved design large diameter miler cutter bits, solve technical problem of drilling in heavy in section solid rock and enhance drilling efficiency.

关 键 词：桩基工程 超大直径嵌岩桩 滚刀钻头 钻进技术 

分 类 号：TU753.3[建筑科学—建筑技术科学]