摘要
Al Hikma项目为地下2层,地上62层,高284.88m的超高层建筑,其基坑最大开挖深度为14.75m,筏板上下层钢筋最大深度达4.6m,筏板混凝土浇筑量为3 600m3,属于大体积混凝土浇筑,施工难度大,而且在筏板施工过程中遇到了很多技术难题,如基坑挡土墙二次加固、降水不足、挡土墙渗水及桩钢筋外露并腐蚀等。介绍了英标规范下,中东地区筏板施工流程及控制要点,以及施工过程中遇到的问题及解决方案。
The Al Hikma project is a high-rise building with two storeys underground and 62 storeys aboveground.The building height is 284m.The maximum depth of the excavation pit is 14.75m.The top and bottom reinforcements of the raft reaches 4.6m and the total concrete pouring amount is 3 600m3,which belongs to mass concrete.The construction of mass concrete is very difficult.Additionally,many technical problems were encountered during the raft construction,such as strengthening of the retaining wall,insufficient dewatering,the water leakage of the retaining wall and exposure and corrosion of pile reinforcements,etc.This article introduces the process and control points of raft construction in the Middle East under the British Standard Specifications,as well as the problems encountered and solved during the construction progress.
出处
《施工技术》
CAS
北大核心
2013年第6期85-89,共5页
Construction Technology
基金
中建股份科研项目资助(CSCEC-2011-C-04)
