摘要The additional load caused by vehicles is an important consideration in the design of highway retaining structures. This study investigated the additional earth pressure of retaining wall caused by vehicle load. Combined with the construction of a cantilever retaining wall in the Liandu-Jinyun section of 330 National Highway Expansion Project, a series of soil pressure boxes was embedded above the floor of the retaining wall and on the inside of the vertical plate. After the wall was constructed, a 30 t dump truck was used as the load source and asked to stop at designated places, the additional vertical and lateral earth pressure caused by vehicles (static load) was tested, and the test results were compared with the calculated results obtained using the standard uniform distribution method in the current highway design code and the Boussinesq solution of elastic mechanics. Results reveal that the additional lateral earth pressure along the wall shows a nonlinear distribution, the maximum value appears in the middle of the wall, and the peak value decreases as the distance of the truck from the retaining wall increases. The distribution pattern of additional vertical earth pressure on the floor in the cross-section direction is also non-linear. Agreat difference exists between the measured and calculated results. Using the uniform distribution method to determine the additional lateral earth pressure caused by the vehicle load may underestimate the bending moment or anti-overturning moment resulting from the additional lateral earth pressure, which may cause failure of the anti-bending and anti-overturning abilities of the retaining wall to meet the requirements. For the variable section retaining wall (the wall section size decreases with the wall height), the shear strength of the middle and upper parts of the wall may be insufficient, and shear failure may occur. The tested additional lateral earth pressure is basically the same as the Boussinesq solution, but the vertical additional earth pressure is larger than the Boussinesq solution. This study suggests the use of the Boussinesq solution with multiple lanes and standard vehicles as the additional load caused by vehicle when designing the retaining wall (especially heavy duty road retaining wall).
Abstract：The additional load caused by vehicles is an important consideration in the design of highway retaining structures. This study investigated the additional earth pressure of retaining wall caused by vehicle load. Combined with the construction of a cantilever retaining wall in the Liandu-Jinyun section of 330 National Highway Expansion Project, a series of soil pressure boxes was embedded above the floor of the retaining wall and on the inside of the vertical plate. After the wall was constructed, a 30 t dump truck was used as the load source and asked to stop at designated places, the additional vertical and lateral earth pressure caused by vehicles (static load) was tested, and the test results were compared with the calculated results obtained using the standard uniform distribution method in the current highway design code and the Boussinesq solution of elastic mechanics. Results reveal that the additional lateral earth pressure along the wall shows a nonlinear distribution, the maximum value appears in the middle of the wall, and the peak value decreases as the distance of the truck from the retaining wall increases. The distribution pattern of additional vertical earth pressure on the floor in the cross-section direction is also non-linear. Agreat difference exists between the measured and calculated results. Using the uniform distribution method to determine the additional lateral earth pressure caused by the vehicle load may underestimate the bending moment or anti-overturning moment resulting from the additional lateral earth pressure, which may cause failure of the anti-bending and anti-overturning abilities of the retaining wall to meet the requirements. For the variable section retaining wall (the wall section size decreases with the wall height), the shear strength of the middle and upper parts of the wall may be insufficient, and shear failure may occur. The tested additional lateral earth pressure is basically the same as the Boussinesq solution, but the vertical additional earth pressure is larger than the Boussinesq solution. This study suggests the use of the Boussinesq solution with multiple lanes and standard vehicles as the additional load caused by vehicle when designing the retaining wall (especially heavy duty road retaining wall).
基金资助:Supported by the Hunan Natural Science Foundation Project(No.2017JJ2087); Zhejiang Transportation Science and Technology Project(Nos. 2016041,2017033)
通讯作者:
LIU Ze
E-mail: csuzeliu@163.com
引用本文:
刘泽, 何矾, 黄天棋, 蒋梅东. 车辆荷载在挡土墙上引起的附加土压力研究[J]. Journal of Highway and Transportation Research and Development, 2019, 13(1): 16-23.
LIU Ze, HE Fan, HUANG Tian-qi, JIANG Mei-dong. Additional Earth Pressure of Retaining Wall Caused by Vehicle Load. Journal of Highway and Transportation Research and Development, 2019, 13(1): 16-23.
[1] JTG D60-2015, General Code of Design of Highway Bridge and Culverts[S]. (in Chinese)
[2] JTG D30-2015, Specifications for Design of Highway Subgrades[S]. (in Chinese)
[3] LI Cun-bao,LI Yuan-xin,DAI Yu-shuang,et al. Comparative Research on the Effect of Vehicle Load and Static Load on Road Shoulder Type Retaining Wall[J].Sichuan Building Science, 2011, 37(4):130-132. (in Chinese)
[4] YU Yi-fan, ZHANG Hong-bo, SONG Xiu. Research on Mechanics Characteristics of Anchor Cantilever Retaining Wall under Heavy Traffic[J]. Highway,2015(7):1-6.(in Chinese)
[5] YUE Jin-chao,QIU Hong-zhi,ZHANG Li-jun, et al. Analysis on Dynamic Response of the Foundation Pit Supporting Structure under Traffic Loads[J].Chinese Journal of Underground Space and Engineering, 2013, 9(6):1320-1325. (in Chinese)
[6] LI Zhi-yong, DENG Zong-wei. Study of Dynamic Response Rule of Prestressed Anchor Sheet-pile Wall[J]. Rock and Soil Mechanics, 2010,31(2):645-648. (in Chinese)
[7] TAN Xian-liang, DENG Zong-wei, LI Zhi-yong, et al. Dynamic Earth Pressure Effect Analysis on Pre-stressed Anchor Pile Plate Wall under Traffic Load[J]. Journal of Central South University:Science and Technology, 2010, 41(3):1178-1185. (in Chinese)
[8] LI Yun. Test Study and Numerical Analysis on Dynamic Characteristics of Gabion Reinforced Soil Retaining Walls[D]. Changsha:Central South University, 2010. (in Chinese)
[9] LI Yun, YANG Guo-lin, LIN Yu-liang. Dynamic Characteristics of Reinforced Gabion Walls Subjected to Cyclic Loading[J]. Journal of Highway and Transportation Research and Development, 2011,28(2):1-6. (in Chinese)
[10] HUANG Xiang-jing, XU Gui-lin, YANG Guo-lin, et al. Experimental Research on a New Kind of Compound Supporting and Retaining Structure with Reinforced Gabion Retaining Wall[J]. Journal of Highway and Transportation Research and Development, 2011,28(2):7-13. (in Chinese)
[11] WANG Yi,LUO Dan-xia,DU Xue-fang,et al. Research on Dynamic Characteristics of Geogrid Reinforced Retaining Walls under Vehicle Load[J]. Journal of Southwest University of Science and Technology, 2014, 29(2):37-40. (in Chinese)
[12] WU Shun-chuan, JIN Ai-bing, WANG Jin-an. Numerical Simulation of Failure Mechanism of Subgrade Retaining Structure under Vehicle Load[J]. Rock and Soil Mechanics, 2007,28(2):258-262. (in Chinese)
[13] ZHANG Bo, TAO Lian-jin, MENG Yun-wei,et al. Study of Failure Mechanism of Gabion Retaining Wall under Vibrating Compaction Using PFC[J]. Journal of Highway and Transportation Research and Development, 2009,26(10):48-52. (in Chinese)
[14] MA Xiao-fang. Studies on Support Structure of Deep Foundation Pit under Vehicle Load[D]. Xi'an:Xi'an University of Architecture and Technology, 2010. (in Chinese)
[15] WANG Hong-liang, SONG Er-xiang, SONG Fu-yuan. Analysis of Earth Pressure on the Retaining Structure Due to Surcharge Near the Excavation[J]. Industrial Construction, 2012 42(9):90-96. (in Chinese)
[16] ZHANG Zhuo. Calculation of Additional Active Earth Pressure on Shoulder Retaining Wall under Overloading[J]. Subgrade engineering, 2007, (1):42-45. (in Chinese)
[17] REN You-feng. Conversion of Large Vehicle Loads in Design of Access Road Retaining Wall[J]. Northwest Hydropower 2010, (4):55-58. (in Chinese)
[18] ZHAO Cheng-gan, BAI Bing, WANG Yun-xia. Principles of Soil Mechanics[M]. Beijing:Tsinghua University Press, 2004. (in Chinese)
[1]
李宁, 马骉, 李瑞, 司伟. 基于PUMA的单级和多级加载模式下级配碎石性能研究[J]. Journal of Highway and Transportation Research and Development, 2019, 13(2): 1-12.
[2]
许海亮, 任合欢, 何兆才, 何炼. 车路耦合条件下沥青混凝土路面变形特性时域分析[J]. Journal of Highway and Transportation Research and Development, 2019, 13(2): 13-19.
[3]
杜健欢, 艾长发, 黄超, 郭玉金, 蒋运兵. 界面水对沥青复合小梁疲劳性能的影响试验[J]. Journal of Highway and Transportation Research and Development, 2019, 13(1): 1-7.
[4]
姚国强, 言志信, 龙哲, 翟聚云. 基于岩质边坡相似材料的锚固界面剪应力分布规律研究[J]. Journal of Highway and Transportation Research and Development, 2019, 13(1): 8-15.
[5]
邱欣, 徐静娴, 陶钰强, 杨青. 路面结冰条件判别标准及SVM预测分析研究[J]. Journal of Highway and Transportation Research and Development, 2018, 12(4): 1-9.
[6]
高伟, 崔巍, 李秀凤. 半刚性基层表面抗冲刷性能试验与分析[J]. Journal of Highway and Transportation Research and Development, 2018, 12(4): 10-17.
[7]
张向东, 任昆. 煤渣改良土路基的动弹性模量及临界动应力试验研究[J]. Journal of Highway and Transportation Research and Development, 2018, 12(4): 25-32.
[8]
刘栋, 尚小亮, 杨西海. 垃圾焚烧炉渣中可溶盐对水泥稳定材料性能的影响[J]. Journal of Highway and Transportation Research and Development, 2018, 12(4): 18-24.
[9]
李龙海, 杨茹. 多次加铺的复合道面疲劳寿命分析[J]. Journal of Highway and Transportation Research and Development, 2018, 12(3): 7-15.
[10]
蔡旭, 李翔, 吴旷怀, 黄文柯. 基于旋转压实的水泥稳定再生集料设计方法研究[J]. Journal of Highway and Transportation Research and Development, 2018, 12(3): 1-6.
[11]
李金路, 冯子强, 吴佳杰, 魏姗姗, 葛智. 环境及疲劳荷载作用下碳纳米管水泥基复合材料压敏性能研究[J]. Journal of Highway and Transportation Research and Development, 2018, 12(3): 16-21.
[12]
田小革, 韩海峰, 李新伟, 吴栋, 魏东. 半刚性路面中双层半刚性基层的倒装效应[J]. Journal of Highway and Transportation Research and Development, 2018, 12(3): 22-27.
[13]
邢磊, 雷柏龄, 陈忠达, 戴学臻. 彩色沥青路面胶凝材料的制备技术[J]. Journal of Highway and Transportation Research and Development, 2018, 12(2): 1-6.
[14]
方薇, 陈向阳, 杨果林. 带齿格栅加筋挡墙工作机理的数值模拟研究[J]. Journal of Highway and Transportation Research and Development, 2018, 12(2): 7-13.
[15]
廖幼孙, 雷余波, 杨康, 柳俊. 有孔管桩群桩沉桩引起的超孔隙水压力模型试验分析[J]. Journal of Highway and Transportation Research and Development, 2018, 12(2): 22-28.
2019, Vol. 13 
