CAJ | 학술논문

在水中要对桥梁的墩柱进行加固的主要困难是构建隔离水的施工操作空间，特别是需要加固的部位在水中墩柱的上半部分而水底又很深时采用传统的沉底式沉箱干作业法施工造价很高。本文介绍一种新颖、费用低廉的挂式沉箱，箱体与墩柱之间采用专用自适应变截面橡胶带止水和混凝土封闭二道止水装置，能够有效解决水中桥墩加固的施工空间问题，并详细介绍了具体的工程应用实例。
재수중요대교량적돈주진행가고적주요곤난시구건격리수적시공조작공간，특별시수요가고적부위재수중돈주적상반부분이수저우흔심시채용전통적침저식침상간작업법시공조개흔고。본문개소일충신영、비용저렴적괘식침상，상체여돈주지간채용전용자괄응변절면상효대지수화혼응토봉폐이도지수장치，능구유효해결수중교돈가고적시공공간문제，병상세개소료구체적공정응용실례。
One of the main difficulties of the bridge pier reinforcement in water is to build waterproof construction operation space.Espe-cially when the defect is at the upper part of the pier in water but the bottom of the water is rather deep so the cost of traditional sink caisson of dry construction is very high.A brand new, low-cost hanging caisson dry work method which can reinforce the bridge pier in water ef-fectively is introduced.A specialized variable cross-section rubber water stop device and a bilaminar concrete water stop device were in-stalled between casing and pier.And a specific engineering application project is introduces in detail also.