[1]方 薇,刘 恬,王 骄,等.填料颗粒级配对带齿格栅拉拔特性影响的试验[J].长安大学学报(自然科学版),2024,44(6):1-10.[doi:10.19721/j.cnki.1671-8879.2024.06.001]
　FANG Wei,LIU Tian,WANG Jiao,et al.Experimental on effect of filler particle gradation on pullout characteristics of denti-geogrid[J].Journal of Chang’an University (Natural Science Edition),2024,44(6):1-10.[doi:10.19721/j.cnki.1671-8879.2024.06.001]
点击复制

填料颗粒级配对带齿格栅拉拔特性影响的试验()
分享到：

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
第44卷
期数:
2024年6期
页码:
1-10
栏目:
道路工程
出版日期:
2024-12-30

文章信息/Info

Title:
Experimental on effect of filler particle gradation on pullout characteristics of denti-geogrid
文章编号:
1671-8879(2024)06-0001-10
作者:
方 薇1; 刘 恬1; 王 骄1; 2; 沈洪宇1
(1. 长沙理工大学 交通运输工程学院,湖南 长沙 410114; 2. 长沙理工检测咨询有限责任公司,湖南 长沙 410076)
Author(s):
FANG Wei1;  LIU Tian1;  WANG Jiao1; 2;  SHEN Hong-yu1
(1. School of Traffic and Transportation Engineering, Changsha University of Science & Technology,Changsha 410114, Hunan, China; 2. Changsha Li Gong Detection and Consulting Co. Ltd., Changsha 410076, Hunan, China)
关键词:
道路工程;  带齿土工格栅;  拉拔试验;  界面摩擦特性;  颗粒级配
Keywords:
road enginerring;  denti-geogrid;  pullout test;  interfacial friction characteristic;  particle gradation
分类号:
U416.1
DOI:
10.19721/j.cnki.1671-8879.2024.06.001
文献标志码:
A
摘要:
为了研究填料颗粒级配对带齿土工格栅拉拔特性的影响,首先采用标准砂配置级配良好砂、级配不良的粗砂、中砂、细砂4种填料,并用扎带将角铝和土工格栅组装成带齿土工格栅。其中,土工格栅分为双向拉伸塑料土工格栅和聚酯经编土工格栅2种。然后分别将2种带齿土工格栅埋置于含水率为0.5%、压实度为95%的4种砂性填料中,利用YT型土工合成材料直剪拉拔摩擦仪开展不同法向应力(10～60 kPa)和不同齿筋高度(0～10 mm)条件下的拉拔模型试验。研究结果表明:由于带齿双向拉伸塑料土工格栅横肋较厚,当填料粗颗粒含量(质量分数)较多时,模型箱窄缝处砂粒排出不畅,从而可能导致拉拔力-拉拔位移(T-ΔL)试验曲线出现小幅波动; 随着齿筋高度和粗颗粒含量的增加,2种带齿土工格栅的拉拔力、似黏聚力和似摩擦角均有所增大,且其对似黏聚力的影响远大于似摩擦角; 颗粒级配和齿筋高度对带齿双向拉伸塑料土工格栅界面似黏聚力的影响远大于带齿聚酯经编土工格栅; 2种带齿土工格栅的似摩擦因数均随粗颗粒含量的增多而增大,而拉拔系数与填料粗颗粒含量呈负相关性; 在相同工况下,带齿双向拉伸塑料土工格栅的拉拔力、界面剪切参数、似摩擦因数和拉拔系数等特征值均大于带齿聚酯经编土工格栅,故对于砂土来说前者具有更好的加筋效果,采用带齿塑料格栅更能提升界面摩擦特性; 在加筋土工程应用中,砂土加筋可优先采用带齿双向拉伸塑料土工格栅。
Abstract:
In order to study the effect of particle size distribution of fillers on the pullout characteristics of denti-geogrids, four types of fillers were prepared from standard sand, well graded sand and poorly graded coarse/medium/fine sand, and the angle aluminum and geogrids were assembled into denti-geogrids using zip ties. The geogrids were classified into two categories, biaxially stretched plastic geogrids and polyester warp knitted geogrids. Subsequently, two denti-geogrids were emplaced in four kinds of sandy fillers with a water content of 0.5% and a compaction degree of 95%. The YT geosynthetic material friction tester was used to conduct pull-out model tests under different normal stresses(10 to 60 kPa)and tooth heights(0 to 10 mm). The results show that due to the thick transverse ribs of the biaxial stretched plastic geogrid, when the content of coarse particles(mass ratio)of the filler is high, the sand particles at the narrow gap of the model box are not capable to be discharged smoothly, which may lead to small fluctuations on the pullout force-pullout displacement(T-ΔL)curve. With the increase of tooth height and coarse particle content, the pullout force, pseudo cohesion, and pseudo friction angle of two types of denti-geogrids both increase, while their influence on pseudo cohesion is much greater than that on pseudo friction angle. The influence of particle size distribution and tooth height on the interfacial cohesion of toothed biaxially stretched plastic geogrids is much higher than that of toothed polyester warp knitted geogrids. The quasi friction coefficients of two types of denti-geogrids increase with the growth of coarse particle content, while the pullout coefficient is negatively correlated with the coarse particle content of the filler. Under the same working conditions, the characteristic values of the pullout force, interfacial shear parameters, quasi friction coefficient, and pullout coefficient of the toothed biaxially stretched plastic geogrid are greater than those of the toothed polyester warp knitted geogrid. Therefore, for sandy filler, the former has a better reinforcement effect, and the use of toothed plastic geogrids can better improve the interface friction characteristics. In the application of reinforcement engineering, toothed biaxial stretched plastic geogrid ought to be priorly adopted.6 tabs, 12 figs, 25 refs.

参考文献/References:

[1] 王家全,仲文涛,黄世斌,等.模块式加筋土挡墙模型试验及静动力学性能研究[J].岩土力学,2023,44(5):1435-1444.
WANG Jia-quan,ZHONG Wen-tao,HUANG Shi-bin,et al.Experimental study on static and dynamic performances of modular reinforced earth retaining wall[J].Rock and Soil Mechanics,2023,44(5):1435-1444.
[2]张 玲,欧 强,赵明华,等.移动荷载下土工加筋路堤动力响应特性数值分析[J].岩土力学,2021,42(10):2865- 2874.
ZHANG Ling,OU Qiang,ZHAO Ming-hua,et al.Numerical analysis on dynamic response characteristics of geosynthetic reinforced embankment under moving load[J].Rock and Soil Mechanics,2021,42(10):2865-2874.
[3]丁龙亭,王选仓,付林杰,等.基于行车舒适性的土工格栅处治涵洞路基差异沉降技术[J].材料导报,2021,35(4):79-87.
DING Long-ting,WANG Xuan-cang,FU Lin-jie,et al.Research on differential settlement technology of culvert subgrade treated by geogrid based on driving comfort[J].Materials Reports,2021,35(4):79-87.
[4]王 伟,李学伟.土工格栅加筋昔格达土路堤作用影响要素分析[J].公路,2020,65(11):21-26.
WANG Wei,LI Xue-wei.Analysis of the influencing factors on geogrid Xigeda Soil reinforced embankment effect[J].Highway,2020,65(11):21-26.
[5]肖 杰,杨和平,符 浩,等.膨胀土边坡加筋作用的对比模型试验[J].中国公路学报,2014,27(7):24-31.
XIAO Jie,YANG He-ping,FU Hao,et al.Comparison model test on effect of geogrid reinforcement for expansive soil slope[J].China Journal of Highway and Transport,2014,27(7):24-31.
[6]褚夫蛟,刘敦文,侯志勇,等.高速公路复工路基土工格栅的加固补强稳定性[J].东北大学学报(自然科学版),2016,37(5):741-745.
CHU Fu-jiao,LIU Dun-wen,HOU Zhi-yong,et al.Reinforcement stability of highway's resumption embankment geogrid[J].Journal of Northeastern University(Natural Science),2016,37(5):741-745.
[7]董博文,邹德高,周晨光,等.堆石料与土工格栅间拉拔特性试验研究[J].水利与建筑工程学报,2016,14(4):50-54.
DONG Bo-wen,ZOU De-gao,ZHOU Chen-guang,et al.Experiments on pullout behavior of geogrid under rockfill materials[J].Journal of Water Resources and Architectural Engineering,2016,14(4):50-54.
[8]骆俊晖,祁航翔,王家全,等.土工格栅与碎石-土混合料的界面摩擦受力特性分析[J].安全与环境工程,2022,29(3):102-108.
LUO Jun-hui,QI Hang-xiang,WANG Jia-quan,et al.Characteristics of interface frictional force between geogrids and gravel-soil mixture[J].Safety and Environmental Engineering,2022,29(3):102-108.
[9]LIU J,WANG B,SUN Y L.Mechanism and mesoscopic characteristics of indirectly reinforced gravelly soil by a geogrid[J].Advances in Materials Science and Engineering,2022,2022:8536258.
[10]ABDI M,MIRZAEIFAR H.Experimental and PIV evaluation of grain size and distribution on soil-geogrid interactions in pullout test[J].Soils and Foundations,2017,57(6):1045-1058.
[11]靳 静,杨广庆,刘伟超.横肋间距对土工格栅拉拔特性影响试验研究[J].中国铁道科学,2017,38(5):1-8.
JIN Jing,YANG Guang-qing,LIU Wei-chao.Experimental study on effect of transverse rib spacing on geogrid pull-out characteristics[J].China Railway Science,2017,38(5):1-8.
[12]KAYADELEN C,ONAL O T,ALTAY G.Experimental study on pull-out response of geogrid embedded in sand[J].Measurement,2018,117:390-396.
[13]肖成志,罗亚楠,王子寒,等.土工格栅-砂土界面特性的拉拔试验研究[J].深圳大学学报(理工版),2019,36(3):252-259.
XIAO Cheng-zhi,LUO Ya-nan,WANG Zi-han,et al.Pull-out test of interface characteristics between geogrid and sand[J].Journal of Shenzhen University(Science and Engineering),2019,36(3):252-259.
[14]祁航翔,王家全,林志南,等.拉拔速率对土工格栅-砾性土界面摩擦特性的影响分析[J].广西科技大学学报,2021,32(2):13-19.
QI Hang-xiang,WANG Jia-quan,LIN Zhi-nan,et al.Impact analysis of pullout velocity on interface friction characteristics of geogrid-gravel soil[J].Journal of Guangxi University of Science and Technology,2021,32(2):13-19.
[15]ABDI M,ZANDIEH A R,MIRZAEIFAR H,et al.Influence of geogrid type and coarse grain size on pull out behaviour of clays reinforced with geogrids embedded in thin granular layers[J].European Journal of Environmental and Civil Engineering,2021,25(12):2161-2180.
[16]易 富,王政宇,杜常博,等.土工格栅与不同粒径填料界面作用特性试验研究[J].硅酸盐通报,2019,38(8):2557-2562.
YI Fu,WANG Zheng-yu,DU Chang-bo,et al.Experimental study on interface characteristics of geogrid and different particle size fillers[J].Bulletin of the Chinese Ceramic Society,2019,38(8):2557-2562.
[17]TAVAKOLI M G,GHANBARI A,MEHDIZADEH H.Experimental study on the behaviour of geogrid-reinforced slopes with respect to aggregate size[J].Geotextiles and Geomembranes,2016,44(6):862-871.
[18]张孟喜,陈高峰,朱 引,等.H-V加筋饱和砂土性状的三轴试验研究[J].岩土力学,2010,31(5):1345-1351.
ZHANG Meng-xi,CHEN Gao-feng,ZHU Yin,et al.Triaxial tests on saturated sands reinforced with horizontal-vertical inclusions[J].Rock and Soil Mechanics,2010,31(5):1345-1351.
[19]ZHANG M,JAVADI A,MIN X.Triaxial tests of sand reinforced with 3D inclusions[J].Geotextiles and Geomembranes,2006,24(4):201-209.
[20]张孟喜,张贤波,段晶晶.H-V加筋黏性土的强度与变形特性[J].岩土力学,2009,30(6):1563-1568.
ZHANG Meng-xi,ZHANG Xian-bo,DUAN Jing-jing.Strength and deformation properties of H-V reinforced clay[J].Rock and Soil Mechanics,2009,30(6):1563- 1568.
[21]魏 伟,张孟喜,张朕磊.水平筋形式对水平-竖向加筋砂土强度的影响[J].上海大学学报(自然科学版),2011,17(2):196-202.
WEI Wei,ZHANG Meng-xi,ZHANG Zhen-lei.Influence of horizontal reinforcement forms on strength of sand reinforced with horizontal-vertical inclusions[J].Journal of Shanghai University(Natural Science Edition),2011,17(2):196-202.
[22]刘飞禹,武文静,符洪涛,等.基于3D打印的立体格栅网筋土界面剪切特性研究[J].中国公路学报,2022,35(4):60-68.
LIU Fei-yu,WU Wen-jing,FU Hong-tao,et al.Research on shear behavior of 3D-printed three-dimensional geogrid-sand interfaces[J].China Journal of Highway and Transport,2022,35(4):60-68.
[23]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].公路交通科技,2017,34(1):32-38.
FANG Wei,CHEN Xiang-yang,YANG Guo-lin.Numerical simulation of working mechanism of retaining wall reinforced with denti-geogrid[J].Journal of Highway and Transportation Research and Development,2017,34(1):32-38.
[24]曹文昭,郑俊杰,周燕君.双向和三向土工格栅筋土界面特性对比试验研究[J].湖南大学学报(自然科学版),2019,46(1):109-116.
CAO Wen-zhao,ZHENG Jun-jie,ZHOU Yan-jun.Comparative experimental investigation of geogrid-soil interface behavior of biaxial and triaxial geogrid[J].Journal of Hunan University(Natural Sciences),2019,46(1):109-116.
[25]胡幼常,靳少卫,宋 亮,等.基于影响带观测的加筋土坡稳定性分析[J].岩土工程学报,2017,39(2):228-234.
HU You-chang,JIN Shao-wei,SONG Liang,et al.Stability analysis of reinforced soil slopes based on observation of reinforcement-effected strip[J].Chinese Journal of Geotechnical Engineering,2017,39(2):228-234.

相似文献/References:

[1]武建民,祝伟,马士让,等.应用加权密切值法评价基质沥青抗老化性能[J].长安大学学报(自然科学版),2012,32(01):0.
[2]张宜洛,袁中山.SMA混合料结构参数的影响因素[J].长安大学学报(自然科学版),2012,32(01):0.
[3]陈璟,袁万杰,郝培文,等.微观指标对沥青热稳定性能的影响[J].长安大学学报(自然科学版),2012,32(01):0.
[4]周兴业,刘小滔,王旭东,等.基于轴载谱的沥青路面累计当量轴次换算[J].长安大学学报(自然科学版),2012,32(01):0.
[5]李祖仲,王伯禹,陈拴发,等.轴载对复合式路面应力吸收层荷载应力的影响[J].长安大学学报(自然科学版),2012,32(01):0.
[6]关博文,刘开平,陈拴发,等.水镁石纤维路面混凝土路用性能[J].长安大学学报(自然科学版),2012,32(01):0.
[7]翁效林,王玮,张留俊,等.拓宽路基荷载下管桩复合地基沉降变形模式[J].长安大学学报(自然科学版),2012,32(01):0.
[8]穆柯,王选仓,柳志军,等.基于非饱和渗流原理的路基含水率预估[J].长安大学学报(自然科学版),2012,32(01):0.
[9]李振霞,陈渊召.不同类型半刚性基层材料性能的试验与分析[J].长安大学学报(自然科学版),2012,32(01):0.
[10]马 骉,马 晋,周宇鹏.沥青混合料降温收缩断裂特性[J].长安大学学报(自然科学版),2012,32(03):1.
　MA Biao,MA Jin,ZHOU Yu-peng.Cooling shrinkage fracture characteristic of asphalt mixture[J].Journal of Chang’an University (Natural Science Edition),2012,32(6):1.

备注/Memo

备注/Memo:
收稿日期:2023-10-20
基金项目:国家自然科学基金项目(51408059,52178413); 湖南省自然科学基金项目(2022JJ30593); 国家留学基金项目(202208430046)
作者简介:方 薇(1984-),男,湖南岳阳人,副教授,工学博士,E-mail:fangwei5642366@163.com。
更新日期/Last Update: 2024-12-30