|
|
|
| Numerical Simulation of the Influence of Bored Pile Construction on Adjacent Existing Pile Foundation |
| LI Zhi-yan1, DING Zhen-ming2, ZHAO Chen3 |
1. Research Institute of Highway, Ministry of Transport, Beijing 100088, China;
2. Beijing Agiletech Engineering Consultants Co., Ltd., Beijing 100037, China;
3. Central Research Institute of Building and Construction Co., Ltd, MCC Group, Beijing 100088, China |
|
|
|
|
Abstract The procedure of constructing the bored piles of a new bridge is simulated by using the three-dimensional finite element method. The variance of soil body stress, the deformation in each step of the construction, and the stress variance of the existing pile foundation are predicted. The following analysis results are obtained: (1) The construction of a new abutment affects the displacement and structure stress of existing bridge piles; (2) Every step of the construction process affects the displacement of the lower part of the foundation pit; (3) The influence of the first and third steps on the stress of the existing bridge piles is larger compared with other steps; (4) Given the surrounding soil disturbance it causes, the construction of a new pile foundation has little influence on the settlement of existing bridge piles. In view of these findings, the following guidelines are recommended: (1) The first and third steps should be given more attention as they are the key sources of risk; (2) The soil surrounding the existing pile should be reinforced by grouting; (3) Where possible, the strength of the retaining wall structure and brace should be improved; (4) A monitoring and warning system should be created based on information management.
|
|
Received: 20 September 2013
|
|
Corresponding Authors:
LI Zhi-yan, zhiyan.li@rioh.cn
E-mail: zhiyan.li@rioh.cn
|
|
|
|
[1] LIU Jian-hang, HOU Xue-yuan. Excavation Engineering Manual[M]. Beijing:China Building Industry Press,1997. (in Chinese)
[2] PULLER M. Deep Excavation[M]. London:Tomas Telford Publishing, 1996.
[3] QIN Si-qing. Deep Excavation Engineering Optimization Design[M]. Beijing:Earthquake Press,1998. (in Chinese)
[4] LIU Deng-pan, LIU Guo-bin. Analysis of the Adjacent Building Influence on Foundation Pit Deformation[J]. Geotechnical Engineering Technique,2007,21(1):28-31, 45. (in Chinese)
[5] DING Zhen-ming, QIN Si-qing, LIU Jun, et al. Research on Anti-pulling Mechanism in Soil-nailing Supporting System[J]. Rock and Soil Mechanics, 2005, 26(11):1799-1802. (in Chinese)
[6] DING Zhen-ming, LIU Jun, QIN Si-qing. Application of Soil Nail Composite Prestressed Anchor in Deep Foundation Pit Support Engineering[C]//Proceedings of 15th National Symposium on Geotechnical Anchorage Engineering, China Geotechnical Anchorage Engineering Association. Beijing:China Communications Press,2006:364-368. (in Chinese)
[7] DING Zhen-ming. The Analysis of Forces of Soil-nailing Supporting System via In-situ Test[J]. Journal of Geotechnical Investigation & Surveying, 2006(11):65-67. (in Chinese)
[8] BOONE S J, WESTLAND J, NUSINK R. Seismic Response of Reinforced Concrete Buildings Close to Deep Excavation[J]. Canadian Geotechnical Journal,1999, 36(2):210-223.
[9] LI Long-jian, YANG Hong-wei, LI Zheng-lin, et al. Numerical Analysis of the Influence of Unsupported Excavation on Adjacent Viaduct Foundation[J]. Chinese Journal of Underground Space and Engineering, 2011, 7(S2):1697-1701. (in Chinese)
[10] WANG Cui, YAN Shu-wang, ZHANG Qi-bin. Study of Influence of Deep PIT Excavation on Adjacent Bridge Foundation Plies[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(S1):2994-3000.(in Chinese) |
| [1] |
LI Ning, MA Biao, LI Rui, SI Wei. Performance of Unbound Aggregate Materials under Single-stage and Multi-stage Loading Modes Based on Precision Unbounded Material Analyzer[J]. Journal of Highway and Transportation Research and Development, 2019, 13(2): 1-12. |
| [2] |
CHANG Zhu-gang, WANG Lin-kai, XIA Fei-long. Fluid-structure Interaction Numerical Simulation of Bridge Wind-induced Vibration Based on CV Newmark-β Method[J]. Journal of Highway and Transportation Research and Development, 2019, 13(2): 28-37. |
| [3] |
XU Bai-shun, YAO Chao-yi, YAO Ya-dong, QIAN Yong-jiu, MA Ming. Carbon Fiber Reinforced Polymer-to-steel Interfacial Stress Parameter Sensitivity Based on Viscoelastic Constitutive[J]. Journal of Highway and Transportation Research and Development, 2019, 13(2): 20-27. |
| [4] |
WEN Cheng, ZHANG Hong-xian. Influence of Material Time-dependent Performance on the Cantilever Construction of PSC Box Girder Bridge[J]. Journal of Highway and Transportation Research and Development, 2019, 13(2): 38-44. |
| [5] |
LU Guan-ya, WANG Ke-hai, ZHANG Pan-pan. Seismic Design and Evaluation Methods for Small-to-Medium-Span Highway Girder Bridges Based on Machine Learning and Earthquake Damage Experience[J]. Journal of Highway and Transportation Research and Development, 2019, 13(1): 24-37. |
| [6] |
YANG Yi-ming, PENG Jian-xin, ZHANG Jian-ren. Random Field Parameter Estimation of Service Bridge Component and Comparative Analysis of Estimation Methods[J]. Journal of Highway and Transportation Research and Development, 2019, 13(1): 38-49. |
|
|
|
|
2013, Vol. 7 
