高速公路软土路基工后沉降预测的新方法

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摘要路基沉降变形是造成道路工程事故的重大隐患。路基变形的控制是确定合理的路基施工速率、优化路基处理方案、提高填方路基的施工质量以及确保将来工程安全运营的重中之重。本文分别对路基沉降估算常见的方法：泊松模型、灰色模型、遗传算法、神经网络法、三点法、曲线拟合法、经验系数校正法及 SFIA 方法等方法进行了定性对比分析。最终将 SFIA 方法应用于京津二通道和首都机场二通道等实际工程，计算结果表明：采用模拟路基施工过程的分阶段计算、根据地基土模量在不同荷载阶段的变化、采用相应的非线性模量进行路基沉降计算的计算结果更接近工程真实值。

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	薛祥
	宋连亮
	贾亮
	乐园
	葛虹

关键词 ：高速公路, 软土路基, 沉降预测, 地基处理, SFIA 方法

Abstract：The post-construction settlement of soft-soil roadbed is a serious hidden trouble to expressway. It is critical to control the deformation of soft-soil roadbed to optimize the construction speed and roadbed plan, to improve the construction quality and to ensure the project operation. The common prediction methods for post-construction settlement of soft-soil roadbed of expressway are qualitatively compared and analyzed. These methods include the Poisson,s model, grey model, genetic algorithm, neural network method, three-point method, curve fitting method and SFIA method. Finally, the SFIA method is selected to calculate the settlements of the second expressway of Beijing to Tianjin and the second expressway of Beijing International Airport. The calculated results are close to the actual values. For prediction of the post-construction settlement, soft-soil roadbed of expressway the roadbed construction process should be simulated, and the nonlinear soil modulus should be employed according to different construction loads.

Key words： expressway soft-soil ground settlement prediction ground treatment SFIA method

收稿日期: 2011-04-29

:	TP183
	U416.1

作者简介: 薛祥 (1979 – ) ，男，贵州大方人，硕士，国家一级注册结构工程师，主要从事地下结构设计、岩土工程设计及咨询工作。

引用本文:

薛祥, 宋连亮, 贾亮, 乐园, 葛虹, . 高速公路软土路基工后沉降预测的新方法[J]. 岩土工程学报, 2011, 33(zk1): 125-130. XUE Xiang, SONG Lian-liang, JIA Liang, LE Yuan, GE Hong. New prediction method for post-construction settlement of soft-soil roadbed of expressway. Chinese J. Geot. Eng., 2011, 33(zk1): 125-130.

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http://manu31.magtech.com.cn/Jwk_ytgcxb/CN/ 或 http://manu31.magtech.com.cn/Jwk_ytgcxb/CN/Y2011/V33/Izk1/125

[1] 张砚霖 , 黎雪荣 , 李胜茂 , 等 . 2009-2012 年中国公路行业投资分析及前景预测报告 [R]. 北京 : 中投顾问 , 2009. (ZHANG Yan-shen, LI xue-rong, LI Sheng-mao, et al. A report of Chinese highway trade analysis and investment consultation from 2009 to 2012[R]. Beijing: CIConsulting, 2009. (in Chinese))
[2] 郭凡礼 , 周思然 , 宋智晨 , 等 . 2009-2012 年中国铁路建设行业分析及投资咨询报告 [R] . 北京 : 中投顾问 , 2009. (GUO Fan-li, ZHOU Si-ran, SONG Zhi-chen, et al. A report of China' s Railway Construction analysis and investment consultation from 2009 to 2012[R]. Beijing: CIConsulting, 2009. (in Chinese))
[3] 冯震 , 祝海涛 , 熊仲华 . 泊松模型预测路基沉降 [J]. 华东地质学院学报 , 2003, 26 (4): 364 – 366. (FENG Zhen, ZHU Hai-tao, XIONG Zhong-hua. Forecasting embankment settlement with poission model[J]. Journal of East China Geological Institute, 2003, 26 (4): 364 – 366. (in Chinese))
[4] 刘军勇 . 路基沉降预测非等时序改进灰色模型应用研究 [J]. 路基工程 , 2007, 133 (4): 61 – 63. (LIU Jun-yong. Application test of subgrade settlement predication by improvement GM(1,1) predication mode with unequal spaced time[J]. Subgrade Engineering, 2007, 133 (4): 61 – 63. (in Chinese))
[5] 王正志 , 薄淘 . 进化计算 [M]. 长沙 : 国防科技大学出版社 , 2000. (WANG Zheng-zhi, FU Tao. Evolutionary computation, evolutionary algorithms[M]. Changsha: National University Press of Defense Technology, 2000, (in Chinese))
[6] 薛祥 , 孙宏伟 , 沈滨 , 等 . 岩土工程中的数据挖掘和知识发现探讨 [J]. 工程勘察 , 2007, 10 : 11 – 16. (XUE Xiang. SUN Hong-wei, SHEN Bin, et al. Data mining and knowledge discovery in database of geotechnical engineering [J]. Geotechnical Investigation & Surveying, 2007, 10 : 11 – 16. (in Chinese))
[7] 刘勇健 . 用人工神经网络预测高速公路软土地基的最终沉降 [J]. 公路交通科技 , 2000, 17 (6): 15 – 18. (LIU Yong-jian. Prediction of final settlements of soft ground for expressway by using artificial neural networks[J]. Journal of Highway and Transportation Research and Development, 2000, 17 (6): 15 – 18. (in Chinese))
[8] 饶为国 , 杜文锋 , 罗卫东 . 用三点法推算桩一网复合路基工后沉降量 [J]. 公路 , 2001(8): 92 – 95 . (RAO Wei-guo, DU Wen-feng, LUO Wei-dong. Three point calculation method of residual settlement about pile-net composite foundation[J]. Highway, 2001(8): 92 – 95 . (in Chinese))
[9] JTJ017 — 96 公路软土地基路堤设计与施工技术规范 [S]. 北京 : 人民交通出版社出版 , 1997. (JTJ017 — 96 Technical specifications for design and construction of highway embankment on soft ground[S]. Beijing: China Communications Press, 1997. (in Chinese))
[10] 张国霞 , 张乃瑞 , 张凤林 . 非线性差异沉降分析 [J]. 岩土工程学报 , 1981, 3 (3): 41 – 48. (ZHANG Guo-xia, ZHANG Nai-rui, ZHANG Feng-lin. Nonlinear differential settlement analysis[J]. Chinese J Geot Eng, 1981, 3 (3): 41 – 48. (in Chinese))