Application of Vertical Inclined Brace in Soft Soil Foundation Excavation Support
姬忠凯 JI Zhong-kai；王辉 WANG Hui
（中国市政工程华北设计研究总院有限公司，天津 300074）
（North China Municipal Engineering Design & Research Institute Co.，Ltd.，Tianjin 300074，China）
摘要：在东南沿海软土地区一大型基坑中，采用“SMW工法桩+坑底加固+竖向斜撑”的支护方案，与常规按整个基坑平面布置的水平支撑对比，可大幅降低造价，提高围护结构的抗倾覆能力，可缩短工期。结合工程实际案例，详细介绍竖向斜撑基坑支护设计算思路，对大面积软土基坑支护设计具有一定的借鉴作用。
Abstract: In a large foundation excavation in soft soil area of southeast coast, the support scheme of SMW construction method pile + bottom reinforcement + vertical inclined brace is adopted. Compared with the conventional horizontal bracing arranged according to the whole foundation excavation plane, the cost can be greatly reduced, the anti-overturning ability of the retaining structure can be improved, and the construction period can be shortened. Combined with practical engineering cases, the calculation method of vertical inclined brace foundation excavation support design is introduced in detail, which can be used for reference to the design of large area soft soil foundation excavation support.
关键词：竖向斜撑；软土；基坑支护
Key words: vertical inclined brace；soft soil；foundation excavation support
中图分类号：U414 文献标识码：A 文章编号：1006-4311（2022）20-099-03
DOI:10.3969/j.issn.1006-4311.2022.20.033.
文章出处：姬忠凯,王辉. 竖向斜撑在软土基坑支护中的应用[J]. 价值工程,2022,41(20):99-101.
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