铁路桥梁桩基优化计算方法研究

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Abstract Research purposes:In the design of railway engineering general contracting project, the bridge pile foundation has a large volume and many control factors, so there is a large space for optimization. In this paper, the type of pile foundation, pile length, pile body reinforcement and other aspects are studied, on the premise of meeting the requirements of design safety and quality of pile foundation, the optimization calculation method of pile foundation is put forward.
Research conclusions:(1)The concrete calculation method and flow of cast-in-place piles with rotary expanded bulbs were constructed, and the comparison and selection scheme of pile foundation type was added. (2)A linkage iterative algorithm for pile length optimization under seismic load was proposed to accurately calculate the optimal pile length of friction pile foundation of bridge pier. (3)The equivalent geological parameter method was proposed to simulate the pile foundation calculation when the overburden silt layer is thick, and the optimization effect of pile reinforcement is obvious. (4)The calculation method of cubic coordinate transformation was proposed to solve the problem of insufficient calculation accuracy when the bridge pier and foundation produce torsion angle. (5)The above algorithms were incorporated into the pile foundation calculation system and applied in a large number of railway general contracting projects, realizing the fine calculation of railway bridge pile foundation, meeting the design requirements of high economy, high safety and high quality, and saving the engineering cost ranging from 50 million to 180 million for each project. The research results can provide reference for the optimization design of railway bridge pile foundation structure.

Key words： general contracting of railway engineering pile type comparison and selection pile length optimization pile reinforcement optimization

Received: 26 September 2022

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	Articles by authors
	LIAO Lijian
	YANG Xinan
	WANG Yuquan
	WANG Xiuyan

Cite this article:

LIAO Lijian,YANG Xinan,WANG Yuquan, et al. Research on the Optimization Calculation Method of Railway Bridge Pile Foundation[J]. Journal of Railway Engineering Society, 2023, 40(2): 53-58.

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https://tdgcxb.crec.cn/EN/ OR https://tdgcxb.crec.cn/EN/Y2023/V40/I2/53

[1]	信坤. 铁路EPC总承包模式下设计院的应对策略探讨[J].铁路工程技术与经济,2019(5):37-40.Xin Kun. Discussion on Countermeasures of Design Institute under EPC Mode of Railway[J]. Railway Engineering Technology and Economy, 2019(5):37-40.
[2]	范瑞琛. 工程总承包项目造价控制中的设计与管理[J].铁路工程造价管理,2015(2):29-31.Fan Ruichen. Design and Management in the Engineering General Contracting Project Cost Control[J]. Railway Engineering Cost Management, 2015(2):29-31.
[3]	张永亮,徐瑾,刘聪聪,等. 承台-桩-土作用下铁路桥梁桩基础地震反应[J]. 铁道工程学报,2020(5):30-35.Zhang Yongliang, Xu Jin, Liu Congcong, etc. Seismic Response of Pile Foundation of Railway Bridge Considering Cap-pile-soil Interaction[J]. Journal of Railway Engineering Society, 2020(5):30-35.
[4]	王常峰,陈兴冲. 桩基础桥梁非线性地震反应分析模型及试验研究[J]. 桥梁建设,2014(3):57-62.Wang Changfeng Chen Xingchong. Analytical Model and Experimental Study of Nonlinear Seismic Response of Bridge with Pile Foundations[J]. Bridge Construction, 2014 (3):57-62.
[5]	冷伍明, 杨奇, 刘庆潭, 等. 软基高桥台桩-土相互作用计算新方法研究[J]. 岩土力学,2009(10):3079-3085.Leng Wuming, Yang Qi, Liu Qingtan, etc. Study of New Method for Calcutating Response of Piled Bridge Abutment in Soft Ground[J]. Rock and Soil Mechnaics, 2009(10):3079-3085.
[6]	刘波, 徐薇, 周予启, 等. 超深基坑中直径9.5 m巨型桩群施工对紧邻地铁线路的影响[J]. 中国铁道科学, 2014(4):72-79.Liu Bo, Xu Wei, Zhou Yuqi, etc. Influence of Constructing Diameter 9.5 m Super Large Pile Group in Deep Foundation Pit on Adjacent Metro Line[J]. China Railway Science, 2014(4):72-79.
[7]	李军, 秦宪国, 安茹, 等. 神朔铁路曲线桥梁偏心超限整治模型研究[J]. 铁道建筑,2017(6):17-20.Li Jun, Qin Xianguo, An Ru, etc. Research on Treatment Model of Over-stand Eccentricity Curve Bridge on Shenmu-Shouzhou Railway[J]. Railway Engineering, 2017(6):17-20.
[8]	马远刚, 王艳芬, 陈晨. 堆载作用下桥梁被动桩偏移受力分析及处理措施[J]. 桥梁建设,2014(4):22-26.Ma Yuangang, Wang Yanfen, Chen Chen. Force Analysis and Handling Measures for Offsetting of Bridge Passive Piles Under Action of Stacked Load[J]. Bridge Construction, 2014(4):22-26.