南华大学学报(自然科学版)
南華大學學報(自然科學版)
남화대학학보(자연과학판)
JOURNAL OF NANHUA UNIVERSITY(SCIENCE AND TECHNOLOGY)
2013年
3期
86-90
,共5页
PBA工法%钢筋笼%分段连接%钢筋滚轧直螺纹
PBA工法%鋼觔籠%分段連接%鋼觔滾軋直螺紋
PBA공법%강근롱%분단련접%강근곤알직라문
PBA construction method%reinforcement cage%segments connected%rebar roll-ing straight thread
介绍了北京地铁10号线亮马河站东南风道采用PBA工法施工,在小导洞内进行灌注桩施工过程中,因为场地条件不允许整体吊装钢筋笼,需要分段加工现场、吊装、组装;逐段连接时,传统的焊接技术速度慢、连接质量不稳定,工程中采用钢筋滚轧直螺纹接头进行快速连接的新技术,施工高效,质量可靠;成熟的工法和新技术相结合,往往会收到事半功倍的效果。
介紹瞭北京地鐵10號線亮馬河站東南風道採用PBA工法施工,在小導洞內進行灌註樁施工過程中,因為場地條件不允許整體弔裝鋼觔籠,需要分段加工現場、弔裝、組裝;逐段連接時,傳統的銲接技術速度慢、連接質量不穩定,工程中採用鋼觔滾軋直螺紋接頭進行快速連接的新技術,施工高效,質量可靠;成熟的工法和新技術相結閤,往往會收到事半功倍的效果。
개소료북경지철10호선량마하참동남풍도채용PBA공법시공,재소도동내진행관주장시공과정중,인위장지조건불윤허정체조장강근롱,수요분단가공현장、조장、조장;축단련접시,전통적한접기술속도만、련접질량불은정,공정중채용강근곤알직라문접두진행쾌속련접적신기술,시공고효,질량가고;성숙적공법화신기술상결합,왕왕회수도사반공배적효과。
The ventilation drift located in southeast of Liangmahe station in Beijing Subway Line No. 10 was constructed by PBA construction method. On the construction process of bored pile in a small guide tunnel,the reinforcement cage can not be lifted totally because of the in-site conditions and need to be segmented, lifted and connected. The traditional welding technique for segments connection is slow and unstable. So the new technology of the steel rolling straight thread fittings for quick connecting was adopted and it had some advantages of construction efficiency and reliable quality. It will produce a multiplier effect on combining mature construction methods with new technology.