复杂条件下长距离大跨度盖挖深基坑施工关键技术

复杂条件下长距离大跨度盖挖深基坑施工关键技术 English Version

详细信息

摘要: 随着我国基础建设的不断发展，盖挖深基坑在城市地铁工程中得到了广泛的应用，取得了良好的社会和经济效益。深圳地铁5号线盖挖深基坑的规模宽度达24 m，长度达722 m，在全国实为罕见，对此基坑在围护结构、降水及结构施工中遇到的难题进行攻关。通过实践及对关键技术进行了总结，为类似工程提供参考。
- 复杂条件 /
- 大跨度 /
- 深基坑 /
- 盖挖
Abstract: The deep foundation pit by using the cover-cut method is widely applied in the construction of metro projects. This method has proved to be an economic and practical way. A case in Shenzhen Metro Line No. 5 is studied. The pit is 24 m deep, 722 m long, and under complicated conditions. The difficulties encountered in retaining structure, pit dewatering and structure construction during the construction process are studied. The summary based on the practice of key technique can be a reference for similar projects.
- complicated condition /
- large span /
- deep foundation pilt /
- cover-cut method

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