等强直螺纹工艺在东海大桥钻孔灌注桩钢筋笼施工中的运用  

Application of Uniform Strength, Straight Thread Workmanship to Construction of Bored Pile Reinforcement Cages of Donghai Bridge

作　　者：周先念 李志贤[2] 宋长兵[3] 

机构地区：[1]路桥华南工程有限公司,广东中山528403 [2]路桥集团国际建设股份有限公司,北京100027 [3]中铁大桥局集团武汉桥科院有限公司,湖北武汉430034

出　　处：《世界桥梁》2005年第1期23-25,共3页World Bridges

摘　　要：东海大桥施工环境恶劣,海上有效作业时间少,钻孔灌注桩施工风险大,采用等强直螺纹工艺可提高钻孔灌注桩钢筋笼连接速度,缩短成桩时间,降低成桩风险,提高成桩质量。The construction environment of Donghai Bridge is harsh and the time for construction over sea is quite restricted. To reduce the risk of construction of the Bridge bored piles in sea, the uniform strength, straight thread workmanship is used for the reinforcement cages of the piles. With the workmanship, the connection of reinforcement cages can be speeded up, the time for completing a pile can be shortened, and the construction risk is thus decreased, the quality of the piles is improved.

关 键 词：等强直螺纹 钢筋笼 钻孔灌注桩施工 成桩质量 施工环境 东海大桥 降低 海上 缩短 作业时间 

分 类 号：U445.551[建筑科学—桥梁与隧道工程]