埃及塞得东港地下连续墙钢筋笼吊装新技术

New Technology of Steel Reinforcement Cage Lifting of Diaphragm Wall in Port Said East of Egypt

埃及塞得东港集装箱码头二期工程的超深地下连续墙施工中,需要解决控制细长钢筋笼起吊变形的技术难题,以确保钢筋笼能顺利吊放到位。在分析普通的"抬吊法"不足的基础上,提出了"抬架垂直转体法"吊装钢筋笼的新技术,解决了这一重大技术难题。介绍了该新技术的原理及吊装工艺。实践证明,该技术能很好地解决"抬吊法"存在的问题,提高钢筋笼吊装的效率及安全性,减少钢筋笼辅助加劲筋的用量,具有明显的社会和经济效益。

In the Construction of super-deep diaphragm walls for Port Said East container terminal-phase 2 marine works in Egypt,lifting transmutation control for slender steel reinforcement cages is required to solve to ensure reinforcement hoisting successfully.Based on the analysis of shortages of steel reinforcement cages lifting with carrying-lifting-method,the author puts forward a new technology of external-truss-lifting-method for steel reinforcement cages lifting and introduces its principle and technique.Practice shows that this technology can solve problems of carrying-lifting-method,improve the efficiency and security of steel reinforcement cages lifting,and reduce the quantity of adjuvant steel reinforcement for strengthening steel reinforcement cages.Good social and economical benefits are obtained.