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超高无面板式土工格栅加筋路堤现场试验研究

贾敏才, 黄文军, 叶建忠, 徐超

贾敏才, 黄文军, 叶建忠, 徐超. 超高无面板式土工格栅加筋路堤现场试验研究[J]. 岩土工程学报, 2014, 36(12): 2220-2225. DOI: 10.11779/CJGE201412009
引用本文: 贾敏才, 黄文军, 叶建忠, 徐超. 超高无面板式土工格栅加筋路堤现场试验研究[J]. 岩土工程学报, 2014, 36(12): 2220-2225. DOI: 10.11779/CJGE201412009
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JIA Min-cai, HUANG Wen-jun, YE Jian-zhong, XU Chao. Field tests on super-high geogrid-reinforced soil embankment without concrete panel[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(12): 2220-2225. DOI: 10.11779/CJGE201412009
Citation: JIA Min-cai, HUANG Wen-jun, YE Jian-zhong, XU Chao. Field tests on super-high geogrid-reinforced soil embankment without concrete panel[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(12): 2220-2225. DOI: 10.11779/CJGE201412009
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超高无面板式土工格栅加筋路堤现场试验研究  English Version

  • 1. 同济大学地下建筑与工程系,上海 200092; 2. 同济大学岩土及地下工程教育部重点实验室,上海 200092; 3. 浙江省交通规划设计研究院,杭州 310006

基金项目: 国家自然科学基金项目（40972214）; 湖北省交通科学研究计划项目（2011700342）
详细信息
    作者简介:

    贾敏才(1973- ),男,副教授,主要从事软土地基加固、土动力学、土体细观力学数值模拟等方面的教学和研究工作。E-mail: mincai_jia@tongji.edu.cn。

Field tests on super-high geogrid-reinforced soil embankment without concrete panel

  • 1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China; 3. Zhejiang Provincial Institute Communications Planning, Design & Research, Hangzhou 310006, China

摘要

    摘要
  • 摘要: 结合在建宜巴高速公路50 m高的加筋填土断面进行现场试验,对超高无面板式土工格栅加筋路堤的格栅变形、垂直土压力、水平土压力、分层沉降以及深层水平位移等内容进行了近2 a的测试,研究超高无面板式土工格栅加筋土路堤的受力、变形规律,分析了其作用机理。结果表明：不同层位土工格栅的最大拉应变出现在离返包面约4~6 m处,格栅应变沿筋长呈双峰值分布,施工期土工格栅应变具有明显的滞后性,且工后1.5 a格栅出现明显的收缩回弹;土工格栅的存在对土压力分布具有明显的调整作用,格栅末端附近实测垂直土压力值略超过理论值,中间和近坡面部位实测土压力值小于理论值;水平土压力沿路堤高度呈非线性形式分布,路堤中部的水平土压力值略大于顶部,其值小于主动土压力;分层沉降量在施工期存在较大波动,在垂直高度上,上部和底部偏小,中下部偏大;深层水平位移随着深度的增加逐渐减小,填土结束后深层水平位移仍有一定程度增大。
    Abstract: Field tests on a 50 m-high geogrid-reinforced soil embankment without concrete panel of Yichang-Badong Highway in Hubei Province are conducted. The tests include the measurements of tensile strain of geogrids, vertical earth pressure, horizontal earth pressure, layered settlement and deep horizontal displacement. The stress and deformation laws are revealed and the mechanism is analyzed. The results show that the maximum tensile strain of geogrids at different layers appears to be about 4-6 m away from the wrapped face, and the tensile strain along reinforcement has two peak values. The strain of geogrids has obvious lag in the construction period, it shrinks and rebounds after construction. The geogrids adjust the distribution of earth pressure. The measured value of the vertical earth pressure at the end of geogrids is slightly larger than the theoretical value, and it is less than the theoretical value in the middle and outside part of the slope. The horizontal earth pressure is nonlinear along the filled earth height. In the middle of the embankment, the horizontal earth pressure is larger than that at the top, and it is less than the active lateral earth pressure. There are a lot of volatilities in the layered settlement, and the value in the middle of the embankment is greater than that in other areas. The horizontal displacement decreases with depth, and it develops to a certain extent after construction.
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  • [1] 周 健, 孔祥利, 王孝存. 加筋地基承载力特性及破坏模式的试验研究[J]. 岩土工程学报, 2008, 30(9): 1265-1269. (ZHOU Jian, KONG Xiang-li, WANG Xiao-cun. Bearing capacity behaviors and failure modes of reinforced grounds[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(9): 1265-1269. (in Chinese))
    [2] 傅 华, 凌 华, 蔡正银. 加筋土强度影响因素的试验研究[J]. 岩土力学, 2008, 11(增刊): 481-484. (FU Hua, LIN Hua, CAI Zheng-yin. Experimental study of factors affecting strength of reinforced soil[J]. Rock and Soil Mechanics, 2008, 11(S0): 481-484. (in Chinese))
    [3] 王 祥, 徐林荣. 双级土工格栅加筋土挡墙的测试分析[J].岩土工程学报, 2003, 25(2): 220-224. (WANG Xiang, XU Lin-rong. Test and analysis of two-step retaining wall reinforced by geogrid[J]. Chinese Journal of Geotechnical Engineering, 2003 25(2): 220-224. (in Chinese))
    [4] 何昌荣, 陈 群, 付海鹰. 两种支挡结构的实测和计算土压力[J]. 岩土工程学报, 2000, 22(1): 55-60. (HE Chang-rong, CHEN Qun, FU Hai-ying. Measurement and computation of earth pressures on two retaining structures[J]. Chinese Journal of Geotechnical Engineering, 2000, 21(1): 55-60. (in Chinese))
    [5] 杨果林, 沈 坚, 陈建荣, 等. 柔性生态型加筋土结构工程应用研究[M]. 北京: 科学出版社, 2013. (YANG Guo-lin, SHEN Jian, CHEN Jian-rong, et al. Application of flexible and eco-reinforced construction[M]. Beijing: Science Press, 2013. (in Chinese))
    [6] 王 伟, 王 俭, 薛剑豪, 等. 土工格栅加筋垫层加固软土地基模型试验分析[J]. 岩土力学, 2005, 26(12): 1885-1891. (WANG Wei, WANG Jian, XUE Jian-hao, et al. Analysis of model tests on soft soil subgrade reinforced by geogrid[J]. Rock and Soil Mechanics, 2005, 26(12): 1885-1891. (in Chinese))
    [7] 杨广庆, 蔡 英. 多级台阶式加筋土挡土墙试验研究[J]. 岩土工程学报, 2000, 22(2): 254-257. (YANG Guang-qing, CAI Ying. Study on the multi-steps reinforced earth retaining wall [J]. Chinese Journal of Geotechnical Engineering, 2000, 22(2): 254-257. (in Chinese))
    [8] 杨广庆, 蔡 英, 苏 谦. 高路堤加筋土挡土墙的变形和受力研究[J]. 岩石力学与工程学报, 2003, 22(2): 321-326. (YANG Guang-qing, CAI Ying, SU Qian. Study on the deformation and stress of reinforced earth retaining wall for high embankment[J]. Chinese Journal of Rock Mechanics and Engineering, 2000, 22(2): 254-257. (in Chinese))
    [9] 杨广庆, 吕 鹏, 庞 巍, 等. 返包式土工格栅加筋土高挡墙现场试验研究[J]. 岩土力学, 2008, 29(2): 517-522. (YANG Guang-qing, LÜ Peng, PANG Wei, et al. Research on geogrid reinforced soil retaining wall with wrapped face by in-situ tests[J]. Rock and Soil Mechanics, 2008, 29(2): 517-522. (in Chinese))
    [10] 陈 群, 何昌荣. 一种新型楔形拉筋加筋土挡墙的原型观测[J]. 岩土工程学报, 2000, 22(3): 289-293. (CHEN Qun, HE Chang-rong. The prototype measurement of retaining wall reinforced by a new type of wedgy tied reinforcement[J]. Chinese Journal of Geotechnical Engineering, 2000, 22(3): 289-293. (in Chinese))
    [11] 陈建峰, 顾建伟, 石振明, 等. 软土地基加筋土挡墙现场试验研究[J]. 岩石力学与工程学报, 2011, 30(增刊): 3370-3375. (CHEN Jian-feng, GU Jian-wei, SHI Zhen-ming, et al. Field test study of reinforced soil wall on soft ground[J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 30(S0): 3370-3375. (in Chinese))
    [12] 王 祥, 周顺华, 顾湘生, 等. 路堤式加筋土挡墙的试验研究[J]. 土木工程学报, 2005, 38(10): 119-128. (WANG Xiang, ZHOU Shun-hua, GU Xiang-sheng, et al. An experimental study on the reinforced retaining wall for embankment[J]. China Civil Engineering Journal, 2005, 38(10): 119-128. (in Chinese))
    [13] WALTERS D L. Behaviour of reinforced soil retaining walls under uniform surcharge loading[D]. Kingston: Queen's University, 2004.
    [14] YOO C, KIN S B. Performance of two-tier geosynthetic reinforced segmental retaining wall under a surcharge load: full-scale load test and 3D finite element element analysis[J]. Geotextiles and Geomembranes, 2008, 26: 460-472.
    [15] LIU Hua-bei. Long-term lateral displacement of geosynthetic- reinforced soil segmental retaining walls[J]. Geotextiles and Geomembranes, 2012, 32: 18-27.
    [16] JTJ 015—91 公路加筋土工程设计规范[S]. 1991. (JTJ 015—91 Technical specification for design of highway reinforced earth engineering[S]. 1991. (in Chinese))
    [17] 李志勇. 陡坡路堤土工格栅加筋机制与合理铺设参数研究[J]. 岩土力学, 2008, 4(4): 925-930. (LI Zhi-yong. Study on reinforced mechanism and laid parameters of steep slope of highway embankment reinforced with geogrids[J]. Rock and Soil Mechanics, 2008, 4(4): 925-930. (in Chinese))
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出版历程
  • 收稿日期:  2014-03-27
  • 发布日期:  2014-12-25

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