超深超厚近海地下连续墙施工关键技术

The Key Technology for Construction of Ultra Deep and Thick Diaphragm Wall Offshore

针对近海软弱地层某超深、超厚地下连续墙施工实例,分析其施工难点,重点阐述了冲抓结合超深成槽,超长钢筋笼制作吊装、超深水下混凝土浇筑与接头防渗等一系列关键技术的实施方法及其效果,对今后类似工程施工具有良好的借鉴意义。

For an ultra-deep and thick diaphragm wall construction example in offshore weak ground,it analysis of its construction difficulties and focuses on a series of key technologies,such as the combined method of shocking and crawling of forming ultra-deep trenches,and the method of long steel cage making and hoisting,and the method of concrete pouring into ultra-deep water and the seepage of joint etc.. And it focuses on their effects also. It has a good reference to similar construction for future.