深基坑桩锚支护后旋喷综合止水帷幕技术经济分析研究

Technical and Economic Analysis of the Waterproof Curtain for the Post Rotary Jet Grouting of Deep Foundation Pit Pile-Anchor Support

摘要: 通过对某深基坑支护工程的分析，探讨研究传统桩锚及土钉墙支护与后旋喷桩技术有机结合，实现不降水施工支护方案的设计，同时通过Midas/GTS的受力性能分析验证了该综合支护体系的安全稳定性，并且将深基坑不降水支护方案与原降水支护方案进行技术经济对比分析。

Abstract: Through the analysis of a supporting project of deep foundation pit, the paper studies the combi-nation of traditional pile-anchor and soil nail wall support and post rotary jet grouting pile tech-nology, and realizes the design of construction-supporting scheme with non-dewatering. Besides, the safety performance of the supporting system is verified by the mechanical behavior analysis of Midas/GTS. The technical and economic comparison analysis of the supporting scheme of deep foundation with non-dewatering and the original supporting scheme with dewatering are carried out.