城市建筑
城市建築
성시건축
URBANISM AND ARCHITECTURE
2014年
24期
109-109,122
,共2页
大直径%人工挖孔桩%履带式钻机取孔%超细水泥灌浆%施工技术
大直徑%人工挖孔樁%履帶式鑽機取孔%超細水泥灌漿%施工技術
대직경%인공알공장%리대식찬궤취공%초세수니관장%시공기술
large diameter%pile of artificial hole%driling ho- les of crawler%superfine cement grouting%construction techn- ology
本文重点介绍了采用履带式钻机取孔、预制超长钢柱、超细水泥灌浆等加固灌注桩承载力施工技术，成功地解决了大直径2.8 m、桩深30 m、扩底直径4.8 m人工挖孔桩施工进度、成本增加等难题，取得了良好经济效益。
本文重點介紹瞭採用履帶式鑽機取孔、預製超長鋼柱、超細水泥灌漿等加固灌註樁承載力施工技術，成功地解決瞭大直徑2.8 m、樁深30 m、擴底直徑4.8 m人工挖孔樁施工進度、成本增加等難題，取得瞭良好經濟效益。
본문중점개소료채용리대식찬궤취공、예제초장강주、초세수니관장등가고관주장승재력시공기술，성공지해결료대직경2.8 m、장심30 m、확저직경4.8 m인공알공장시공진도、성본증가등난제，취득료량호경제효익。
This paper mainly introduced applying construct- ion technology of driling holes by the crawler, the usage of the precast long steel column and superfine cement grouting in the reinforcement of bearing capacity of the grouting pile. These methods successfuly solved problems of the schedule and cost increasing in the pile construction of artificial hole of 2.8m in diameter, of 30m in depth and of 4.8 m in expanding botom diameter and achieved good economic benefits.
