反循环磨盘钻机成孔施工基坑内低净空灌注桩关键技术  

Key Technology for Low Clearance Cast-in-place Piles in Foundation Pits during Drilling with Reverse Circulation Grinding Disc Drilling Rig

作　　者：舒友韬 苏国活 邹德建 李辰阳 梁宗 SHU You-tao;SU Guo-huo;ZOU De-jian;LI Chen-yang;LIANG Zong(Shenzhen Anhe No.1 Real Estate Development Co.,Ltd.,Shenzhen 518000,China;China Construction Fourth Engineering Division the First Corp.,Ltd.,Shenzhen 518000,China)

机构地区：[1]深圳市安和一号房地产开发有限公司,深圳518000 [2]中建四局第一建设有限公司,深圳518000

出　　处：《价值工程》2024年第31期85-87,共3页Value Engineering

摘　　要：灌注桩施工成孔常用的工艺方案有,旋挖机成孔、冲孔机成孔、人工挖孔等;但是,在基坑支护设计为内支撑、工程桩设计为灌注桩的项目施工中,考虑支撑结构影响,大型设备施工需要的净空不够,冲孔会产生震动,人工挖孔受安全问题制约,给灌注桩成孔工艺选择带来很大的难题。本文针对上述难题提出采用反循环磨盘钻机成孔的解决方案,为类似工程施工提供相应的措施方案。The commonly used process schemes for drilling holes in cast-in-place pile construction include rotary excavator drilling,punching machine drilling,manual drilling,etc.However,in the construction of projects where the foundation pit support is designed as internal support and the engineering pile is designed as cast-in-place pile,considering the influence of the support structure,the clearance required for large-scale equipment construction is insufficient,punching will generate vibration,and manual excavation is restricted by safety issues,which brings great difficulties to the selection of the drilling process for cast-in-place pile.This article proposes a solution to the above-mentioned problems by using a reverse circulation grinding disc drilling machine to form holes,providing corresponding measures and plans for similar engineering construction.

关 键 词：基坑内灌注桩施工 低净空桩基施工 反循环钻机 磨盘钻机 

分 类 号：TU753[建筑科学—建筑技术科学]