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Experimental study on interaction characteristics of geogrid-clay interface

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Treść / Zawartość
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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Geogrid is a kind of geosynthetic material widely used in engineering. The interaction between geogrid and packed soil plays a decisive role in the stability of reinforced soil engineering. In this paper, the influence of normal stress, type of geogrid, water content and compactness of subgrade soil on the effect of reinforcement was studied, and the influence degree of each factor was analyzed by grey correlation method. The results show that under the same conditions, both the friction-like coefficient and the maximum shear stress of reinforced soil with bi-directional geogrid are significantly higher than those with unidirectional geogrid. With the increase of normal stress, the maximum shear stress between reinforcement and soil increases, while the friction coefficient decreases slightly with the increase of normal stress. The higher the compactness of the filler, the higher the friction coefficient between the reinforcement and soil. The higher the moisture content, the smaller the friction coefficient between the soil and the reinforcement. According to the grey correlation method, the influence of each factor from large to small is type of geogrid > degree of compaction > water content > normal stress. Therefore, it is suggested that bidirectional grid should be used in engineering and reduce the water content appropriately, which will make the geogrid reinforcement effect reach the best. An elastic-exponential hardening model was proposed to describe and analyze the interface behavior of bidirectional geogrid reinforced clay, and the results can be used as a guide for clay stiffening engineering.
Słowa kluczowe
Rocznik
Strony
587--600
Opis fizyczny
Bibliogr. 15 poz., il., tab.
Twórcy
autor
  • Second Highway Survey, Design and Research Institute, Wuhan, China
autor
  • Changsha University of Science and Technology, School of Transportation Engineering, Changsha, China
autor
  • Shenzhen Urban Traffic Planning and Design Research Center, Shenzhen, China
Bibliografia
  • [1] L. Hoe, A. Pamuk, M. Dechasakulsom, Y. Mohri, and C. Burke, “Interaction between PVC geomembranes and compacted clays”, Journal of Geotechnical and Geoenvironmental Engineering, vol. 127, no. 11, pp. 950-954, 2001, doi: 10.1061/(ASCE)1090-0241(2001)127:11(950).
  • [2] F. Xiaojing, Y. Qing,and L. Shoulong, “Pullout Behavior of Geogrid in Red Clay and the Prediction of Ultimate Resistance”, Electronic Journal of Geotechnical Engineering, vol. 13, pp. 101-117, 2008.
  • [3] F. Haynes, C. Collins, and W. Olson, Bearing capacity tests on ice reinforced with geogrids. The American Society of Mechanical Engineers, 1992.
  • [4] A. Abdel-Rahman, “Modeling of soil-geosynthetic interaction in reinforced earth works, PhD dissertation, New Orleans, Tulane University, 1997.
  • [5] N. Moraci and D. Gioffrè, “A simple method to evaluate the pullout resistance of extruded geogrids embedded in a compacted granular soil”, Geotextiles and Geomembranes, vol. 24, no. 2, pp. 116-118, 2005, doi: 10.1016/j.geotexmem.2005.11.001.
  • [6] A. Pant, G. Ramana, M. Datta, and S. Gupta, “Coal combustion residue as structural fill material for reinforced soil structures”, Journal of Cleaner Production, vol. 232, pp. 417-426, 2019, doi: 10.1016/j.jclepro.2019.05.354.
  • [7] Z. Zuo, G. Yang, H. Wang, and Z. Wang, “Experimental Investigations on Pullout Behavior of HDPE Geogrid under Static and Dynamic Loading”, Advances in Materials Science and Engineering, vol. 2020, no. 7, pp. 1-13, 2020, doi:10.1155/2020/5408064.
  • [8] C. Chen, G. McDowell, and N. Thom, “A study of geogrid-reinforced ballast using laboratory pull-out tests and discrete element modeling”, Geomechanics and Geoengineering, vol. 8, no. 4, pp. 244-253, 2013, doi:10.1080/17486025.2013.805253.
  • [9] Y. Dong, J. Han, and X. Bai, “Numerical analysis of tensile behavior of geogrids with rectangular and triangular apertures”, Geotextiles and Geomembranes, vol. 29, no. 2, pp. 83-91, 2011, doi: 10.1016/j.geotexmem.2010.10.007.
  • [10] A. Mirzaalimohammadi, M. Ghazavi, M. Roustaei, and S. Lajevardi, “Pullout response of strengthened geosynthetic interacting with fine sand”, Geotextiles and Geomembranes, vol. 47, no. 4, pp. 530-541, 2019, doi: 10.1016/j.geotexmem.2019.02.006.
  • [11] Z. Junhui, Z. Anshun, L. Jue, L. Feng, and P. Junhui, “Gray Correlation Analysis and Prediction on Permanent Deformation of Subgrade Filled with Construction and Demolition Materials”, Materials, vol. 12, no. 18, 2019, doi: 10.3390/ma12183035.
  • [12] C. Jianhang, S. Saydam, and C. Hagan, “An analytical model of the load transfer behavior of fully grouted cable bolts”, Construction and Building Materials, vol. 101, pp. 1006-1016, 2015, doi: 10.1016/j.conbuildmat.2015.10.099.
  • [13] Z. Jianjun and D. Jianguo, “Prediction of the nonlinear pull-out response of FRP ground anchors using an analytical transfer matrix method”, Engineering Structures, vol. 81, pp. 377-385, 2014, doi: 10.1016/j.engstruct.2014.10.008.
  • [14] Z. Honghu, Z. Chenchen, T. Chaosheng, S. Bin, and W. Baojun, “Modeling the pullout behavior of short fiber in reinforced soil”, Geotextiles & Geomembranes, vol. 42, no. 4, pp. 329-338, 2014, doi: 10.1016/j.geotexmem.2014.05.005.
  • [15] G. Alfano and E. Sacco, “Combining interface damage and friction in a cohesive-zone model”, International Journal for Numerical Methods in Engineering, vol. 68, no. 5, pp. 542-582, 2006, doi: 10.1002/nme.1728.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-671d5c4b-f6a0-4545-b36e-222940f76619
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