CAJ | 학술논문

沉管隧道深水基槽边坡的稳定性是决定沉管隧道方案能否可行的关键技术之一.采用单一方法分析沉管隧道深水基槽边坡稳定性有局限性.文章结合港珠澳大桥沉管隧道深水基槽边坡稳定性研究过程,提出通过建立基槽边坡与土体指标关系、边坡稳定性理论计算、实测调研对比分析、类似工程经验借鉴等多种方式进行综合研究,分析和评价深水基槽边坡的稳定性并合理确定深水基槽开挖边坡坡度.目前正在实施的港珠澳大桥工程采用了研究结论所推荐的自上而下1:7、1:3两级变边坡型式.
침관수도심수기조변파적은정성시결정침관수도방안능부가행적관건기술지일.채용단일방법분석침관수도심수기조변파은정성유국한성.문장결합항주오대교침관수도심수기조변파은정성연구과정,제출통과건립기조변파여토체지표관계、변파은정성이론계산、실측조연대비분석、유사공정경험차감등다충방식진행종합연구,분석화평개심수기조변파적은정성병합리학정심수기조개알변파파도.목전정재실시적항주오대교공정채용료연구결론소추천적자상이하1:7、1:3량급변변파형식.
Slope stability analysis of immersed tube tunnel deep foundation trench is one of the key technologies to decide whether the immersed tube tunnel plan is feasible. Using a single method for slope stability analysis of immersed tube tunnel deep foundation trench has limitations. Combined with the research process on slope stability of the Hong Kong-Zhuhai-Macao Bridge tunnel deep foundation trench, the method for slope stability analysis of immersed tube tunnel deep foundation trench and determination of gradient was put forward by different ways including relationship between slope and soil indexes, theoretical calculation, actual measurement and analysis, experience of similar project. At present, the slope gradient of the Hong Kong-Zhuhai-Macao Bridge project implemented are 1:7 and 1:3 from top to bottom which is the conclusions through this paper.