明挖法过河隧道的深基坑支护方案选型与分析

摘要:

城市内市政道路隧道工程大多采用明挖法的设计与实施方案，本文对西安一下穿灞河隧道基坑支护设计方案进行全面的比选。对穿河明挖隧道分期实施方案及深厚淤泥层深基坑支护设计、施工工法的选择进行了详细的介绍。最后结合后期实施效果总结经验，供后期类似项目作参考。

Abstract:

Most of the municipal road tunnel projects in cities adopt the design and implementation of open excavation method. This paper makes a comprehensive comparison and selection of the foundation pit support design of xi 'an underpass Bahe Tunnel. This paper introduces in detail the phased implementation scheme of tunnel excavation across river and the supporting design of deep foundation pit in deep silt layer and the selection of construction method. Finally, combined with the implementation effect in the later period, the experience is summarized for reference for similar projects in the later period.