ZHANG Ming,ZHAN Wei,YU Yang,et al.Foundation Coefficient Model of Soil‑rock Mixture based on Support Vector Machine and Its Application[J].Journal of Disaster Prevention and Mitigation Engineering,2021,41(06):1308-1315.
ZHANG Ming,ZHAN Wei,YU Yang,et al.Foundation Coefficient Model of Soil‑rock Mixture based on Support Vector Machine and Its Application[J].Journal of Disaster Prevention and Mitigation Engineering,2021,41(06):1308-1315. DOI: 10.13409/j.cnki.jdpme.201908047.
Foundation Coefficient Model of Soil‑rock Mixture based on Support Vector Machine and Its Application
A foundation coefficient evaluation model of soil-rock mixture was established based on support vector machine (SVM). In this model, the elastic modulus of soil, Poisson's ratio of soil, and volumetric block proportion (VBP) were taken as input parameters and the foundation coefficient was taken as an output parameter. In order to establish the training data, the FLAC3D plate load model was built based on the elastic modulus and Poisson's ratio calculation model of soil-rock mixture. According to the numerical test data, the support vector machine model was trained and preliminarily verified. The support vector machine model was used to predict the foundation coefficient of soil-rock mixtures obtained from field experiments, and the rationality and accuracy of the model were further verified. Through sensitivity analysis, it could be found that the elastic modulus of soil has the greatest influence on the foundation coefficient of soil-rock mixture, followed by the volumetric block proportion. Based on the support vector machine model, the feasibility of applying the five existing foundation coefficient calculation models to soil-rock mixture foundation coefficient calculation was discussed, and the explicit model for evaluating soil-rock mixture foundation coefficient was confirmed.
Xu W J , Hu R L . Conception classification and significations of soil-rock mixture [J]. Hydrogeology and Engineering Geology , 2009 , 36 ( 4 ): 50 - 56,70 . (in Chinese)
You X H , Tang J S . Research on horizontal push-shear in-situ test of soil-rock mixture [J]. Chinese Journal of Rock Mechanics and Engineering , 2002 , 21 ( 10 ): 1537 ‑ 1540 . (in Chinese)
Liao Q L , Li X , Hao Zh , et al . Current status and future trends of studies on rock and soil aggregates (RSA) [J]. Journal of Engineering Geology , 2006 , 14 ( 6 ): 800 - 807 . (in Chinese)
Winkler E . Theory of elasticity and strength [M]. Czechoslovakia : Prague , 1867 .
Zhong S Q , Zhang X P , Pan H L . Study on foundation soil coefficient of subgrade reaction [J]. Chinese Journal of Underground Space and Engineering , 2005 ( Sup 1 ): 1109 - 1112 . (in Chinese)
Biot M A . Bending of infinite beams on an elastic foundation [J]. Journal of Applied Mechanics , 1937 , 4 ( 1 ): 1 - 7 .
Vesic A B . Beams on elastic subgrade and Winkler's hypothesis [C]∥ Proceedings 5th International Conference of Soil Mechanics and Foundation Engineering , Paris : [s.n.] , 1961 : 845 - 850 .
Meyerhof G G , Baike L D . Strength of steel culverts sheets bearing against compacted sand backfill [J]. Highway Research Record , 1963 ( 30 ): 1 - 19 .
Kloppel K , Glock D . Theoretische und experimentelle untersuchungen zu den traglastproblemen beigewiecher, in die erde eingebetteter rohre [M]. Darmstadt : Technischen Hochschule , 1970 .
Selvadurai A P S . Elastic analysis of soil-foundation interaction [M]. New York : Elsevier Publishing Company, Limited , 1979 .
Burhan A , Ayhan G . Modulus of subgrade reaction that varies with magnitude of displacement of cohesionless soil [J]. Arabian Journal of Geosciences , 2018 , 11 ( 13 ): 1 - 8 .
Lee J , Jeong S . Experimental study of estimating the subgrade reaction modulus on jointed rock foundations [J]. Rock Mechanics and Rock Engineering , 2016 , 49 ( 6 ): 2055 - 2064 .
Hashin Z . The moduli of an elastic solid reinforced by rigid particles [J]. Bulletin Research Council of Israe , 1955 , 5 : 46 - 59 .
Vallejo L E , Lobo-Guerrero S . The elastic moduli of clays with dispersed oversized particles [J]. Engineering Geology , 2005 , 78 ( 1 ): 163 - 171 .
Yu Y , Sun H Y , Juang C H . A new model for response of laterally loaded piles in soil-rock mixtures [J]. Computers and Geotechnics , 2018 , 104 : 237 - 246 .
Tsesarsky M , Hazan M , Gal E . Estimating the elastic moduli and isotropy of block in matrix (bim) rocks by computational homogenization [J]. Engineering Geology , 2016 , 200 : 58 - 65 .
Sonmez H , Gokceoglu C , Nefeslioglu H A , et al . Estimation of rock modulus: For intact rocks with an artificial neural network and for rock masses with a new empirical equation [J]. International Journal of Rock Mechanics and Mining Sciences , 2006 , 43 ( 2 ): 224 - 235 .
Wang Y , Li X , Hu R L , et al . Review of research process and application of ultrasonic testing for rock and soil [J]. Journal of Engineering Geology , 2015 , 23 ( 2 ): 287 ‑ 300 . (in Chinese)
Jin L , Zeng Y W , Zhang S . Large-scale triaxial tests on effects of rock block proportion and shape on mechanical properties of cemented soil-rock mixture [J]. Rock and Soil Mechanics , 2017 , 38 ( 1 ): 141 ‑ 149 . (in Chinese)
Deng Ch . Experimental study of compaction property for soil-rock mixture and analysis of stability on high embankment [D]. Changsha : Changsha University of Science & Technology , 2016 . (in Chinese)
Wang J Y . Research on deformation characteristics of soil-rock aggregate mixture and stability analysis method of soil-rock filled foundation [D]. Changsha : Hunan University , 2014 . (in Chinese)