洪水期水上钢平台的稳定处理及纠偏措施  

Stability Treatment and Deviation Correction Measures for Water Steel Platform during Flood Season

作　　者：裴浩浩 PEI Haohao

机构地区：[1]中交三航第一工程(上海)有限公司,上海市201315

出　　处：《城市道桥与防洪》2023年第11期161-164,M0015,共5页Urban Roads Bridges & Flood Control

摘　　要：柬埔寨磅湛湄公河大桥13#至16#主桥墩基础为10根直径2.0 m的钻孔灌注桩,长度在89~103 m之间,在雨季桩基施工时,由于洪水突然来袭,致使14#、15#水上钢平台整体倾斜,针对现场情况,利用项目既有的材料设备和人员,首先分4步稳住钢平台,待洪水过后再逐根钢护筒纠偏并加固,最后处理改善护筒周围液化的土壤,保证钢平台的稳定;安全经济且未影响工期,效果十分理想,以工程实例为基础,介绍洪水期水上钢平台的稳定处理及后续纠偏经验。The foundation of the 13#~16#main piers of the Kampong Cham Mekong River Bridge in Cambodia consists of 10 cast-in-place piles with a diameter of 2.0 meters,which lengths are from 89 to 103 meters.During the construction of the pile foundation in the rainy season,due to the sudden flooding,the 14#and 15#water steel platforms will tilt as a whole.Aiming at the on-site situation,the existing materials,equipment,and personnel of the project are used to stabilize the steel platform firstly by four steps.Then after the flood,each steel casing is corrected and reinforced one by one.Finally,the liquefied soil around the casing is treated and improved to ensure the stability of the steel platform,which is safe and economical without affecting the construction period.The effect is very ideal.Based on the engineering examples,the stability treatment and subsequent correction experience of water steel platforms during the flood periods are introduced.

关 键 词：主桥墩 突发洪水 水上钢平台 稳定处理 纠偏 

分 类 号：U445[建筑科学—桥梁与隧道工程] TV122[交通运输工程—道路与铁道工程]