铁道建筑技术
鐵道建築技術
철도건축기술
Railway Construction Technology
2015年
11期
54-57
,共4页
岩溶地层%桩基%旋挖钻机%长套管
巖溶地層%樁基%鏇挖鑽機%長套管
암용지층%장기%선알찬궤%장투관
karst formation%pile foundation%rotary drilling rig%long casing
结合广(州)清(远)高速公路改扩建工程实例,介绍了在临近既有建筑物的情况下,溶洞桩基采用旋挖钻机施工,配以长工具式套管,通过钻具和施工工艺改进,取得了理想效果,拓宽了旋挖钻机的使用范围。
結閤廣(州)清(遠)高速公路改擴建工程實例,介紹瞭在臨近既有建築物的情況下,溶洞樁基採用鏇挖鑽機施工,配以長工具式套管,通過鑽具和施工工藝改進,取得瞭理想效果,拓寬瞭鏇挖鑽機的使用範圍。
결합엄(주)청(원)고속공로개확건공정실례,개소료재림근기유건축물적정황하,용동장기채용선알찬궤시공,배이장공구식투관,통과찬구화시공공예개진,취득료이상효과,탁관료선알찬궤적사용범위。
Combined with the example of Guangzhou-Qingyuan Expressway reconstruction project,the paper introduces the situation of utilizing rotary drilling rig in cave pile foundation near the existing buildings,which achieves ideal effect through using long tool-typed casing and drilling tool along with improvement of construction technology.And it widens the range of rotary drilling rig.