某大型基坑超深挖加固实例分析

Strengthening Design Example on Building Foundation Pit With Over Excavations

本文介绍了某办公楼大型基坑的超深挖加固设计。在已施工并开挖至设计标高的围护桩基坑内,利用原支护桩,在其中部增设一道预应力锚索和角部增设支顶梁进行补强加固,施工监测表明该加固方案安全、经济、合理,可供处理类似工程问题时参考。

This paper analysis on retaining and protection of building foundation over excavations strengthening by prestressed soil anchor ＆ bearing beam. The points offered in this paper can be referred in similar design for building foundation pit over excavations strengthening.