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城市地铁隧道对结构物上部桩基的影响

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2009年06期
Page:
108
Column:
研究论文
publishdate:
2009-11-30

Article Info:/Info

Title:
Effect of metro tunneling traversing on superpile
Author(s):
ZHU Fengbin1 YANG Ping2* SHE Caigao3
1.College of Civil Engineering, Suzhou University of Science and Technology, Suzhou 215011, China; 2.College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China; 3.Nanjing Metro Corporation Limited, Nanjing 210000, China
Keywords:
metro tunnel superpile horizontal displacement bending moment settlement
Classification number :
U452
DOI:
10.3969/j.jssn.1000-2006.2009.06.025
Document Code:
A
Abstract:
A 3D elasto plastic finite element model was established, and a detailed discussion was made on the influence caused by tunneling to ground settlement and superpile. The results showed that the ground settlement which occurs in larger scope would reduce with the increasing of shield tunnel excavation depth. If the pile existed just at the upside of shield tunnel crown, the minimum safe distance between pile toe and shield tunnel crown would be half tunnel diameter. The lateral up influenced zone due to tunneling was one tunnel diameter from tunnel centerline.

References

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[4]杨平,朱逢斌. 城市隧道施工对邻近单桩工作性状影响研究[J]. 现代隧道技术,2006,11(增):234-239.
[5]朱逢斌,杨平,Ong C W. 盾构隧道开挖对邻近桩基影响数值分析[J]. 岩土工程学报,2008,30(2):298-302.
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Last Update: 2009-11-30