1.浙江大学海洋学院,浙江 舟山 316021
2.浙江省交通运输科学研究院,浙江 杭州 311300
章铭(1994-),男,硕士研究生。主要从事土石混合体力学特性研究。E-mail: fenghuazhangming@126.com
于洋(1986-),男,副教授。主要从事岩土工程方面的研究。E-mail: yang-yu@zju.edu.cn
纸质出版:2021-12-15
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章铭,詹伟,于洋等.土石混合体地基系数支持向量机模型与应用[J].防灾减灾工程学报,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.
章铭,詹伟,于洋等.土石混合体地基系数支持向量机模型与应用[J].防灾减灾工程学报,2021,41(06):1308-1315. DOI: 10.13409/j.cnki.jdpme.201908047.
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.
针对缺乏土石混合体地基系数评价模型这一现状,构建了基于支持向量机的土石混合体地基系数评价模型。该模型以土体弹性模量、泊松比以及块石含石率作为输入参数,地基系数作为输出参数。为建立训练数据,基于土石混合体弹性模量与泊松比计算模型,建立了FLAC3D平板载荷模型开展数值实验。基于数值实验数据,训练支持向量机模型并进行初步验证。将该支持向量机模型用于预测现场试验获得的土石混合体地基系数,进一步验证了该模型的合理性与准确性。通过敏感性分析发现,土体弹性模量对土石混合体地基系数的影响最大,其次为含石率。基于支持向量机模型,讨论了5种已有地基系数计算模型应用于土石混合体地基系数计算的可行性,确认了可用于评估土石混合体地基系数的显式模型。
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.
徐文杰 , 胡瑞林 . 土石混合体概念、分类及意义 [J]. 水文地质工程地质 , 2009 , 36 ( 4 ): 50 - 56,70 .
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)
油新华 , 汤劲松 . 土石混合体野外水平推剪试验研究 [J]. 岩石力学与工程学报 , 2002 , 21 ( 10 ): 1537 - 1540 .
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)
廖秋林 , 李晓 , 郝钊 , 等 . 土石混合体的研究现状及研究展望 [J]. 工程地质学报 , 2006 , 14 ( 6 ): 800 - 807 .
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 .
仲锁庆 , 张西平 , 潘海利 . 地基土基床系数研究 [J]. 地下空间与工程学报 , 2005 ( 增1 ): 1109 - 1112 .
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 .
王宇 , 李晓 , 胡瑞林 , 等 . 岩土超声波测试研究进展及应用综述 [J]. 工程地质学报 , 2015 , 23 ( 2 ): 287 - 300 .
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)
金磊 , 曾亚武 , 张森 . 块石含量及形状对胶结土石混合体力学性能影响的大型三轴试验 [J]. 岩土力学 , 2017 , 38 ( 1 ): 141 - 149 .
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)
Cortes C , Vapnik V . Support-vector networks [J]. Machine Learning , 1995 , 20 ( 3 ): 273 - 297 .
Terzaghi K . Evaluation of coefficients of subgrade reaction [J]. Géotechnique , 1955 , 5 ( 4 ): 297 - 326 .
岩土工程勘察规范 : GB 50021—2001 [S]. 北京 : 中国建筑工业出版社 , 2009 .
邓超 . 土石混合体压实特性试验研究与高填路堤稳定性分析 [D]. 长沙 : 长沙理工大学 , 2016 .
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)
王江营 . 土石混填体变形力学特性及其地基稳定性分析方法 [D]. 长沙 : 湖南大学 , 2014 .
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)
许建聪 , 尚岳全 . 碎石土滑坡的因素敏感性计算分析 [J]. 岩土力学 , 2007 , 28 ( 10 ): 2046 - 2051 .
Xu J C , Shang Y Q . Sensitivity analysis of influencing factors of debris landslide [J]. Rock and Soil Mechanics , 2007 , 28 ( 10 ): 2046 ‑ 2051 . (in Chinese)
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