路基工程
路基工程
로기공정
SUBGRADE ENGINEERING
2011年
4期
28-30
,共3页
深基坑工程%土钉支护%数值分析%水平位移
深基坑工程%土釘支護%數值分析%水平位移
심기갱공정%토정지호%수치분석%수평위이
deep foundation pit engineering%soil nailing%numerical analysis%horizontal displacement
结合新疆中天大楼深大基坑支护工程,采用三维有限差分程序FLAC3D对坑壁土钉支护及基坑的开挖过程进行了模拟分析,并通过与现场实测数据的对比研究,研究了土钉支护技术的应用效果。结果表明,数值模拟可以实现施工全过程的动态开挖,坑壁水平位移峰值点约在基坑深度的3/4位置,土钉在基坑开挖过程中均承受拉应力。
結閤新疆中天大樓深大基坑支護工程,採用三維有限差分程序FLAC3D對坑壁土釘支護及基坑的開挖過程進行瞭模擬分析,併通過與現場實測數據的對比研究,研究瞭土釘支護技術的應用效果。結果錶明,數值模擬可以實現施工全過程的動態開挖,坑壁水平位移峰值點約在基坑深度的3/4位置,土釘在基坑開挖過程中均承受拉應力。
결합신강중천대루심대기갱지호공정,채용삼유유한차분정서FLAC3D대갱벽토정지호급기갱적개알과정진행료모의분석,병통과여현장실측수거적대비연구,연구료토정지호기술적응용효과。결과표명,수치모의가이실현시공전과정적동태개알,갱벽수평위이봉치점약재기갱심도적3/4위치,토정재기갱개알과정중균승수랍응력。
Combined with deep foundation pit support engineering of Xinjiang Zhongtian Building,pit wall soil nailing and foundation pit excavation are analyzed numerically using three-dimensional finite difference procedure FLAC3D.Through comparison with the site measured data,the application effect of soil nailing technology is studied.The result shows that numerical simulation can achieve dynamic excavation during the whole construction process,the peak of pit wall horizontal displacement is about at 3/4 of pit depth,and soil nails bear pulling stress during excavation.
