Fractional-order bounding surface model considering breakage of calcareous sand

被引：0

作者：

Wang C. ^{[1
]}

Shu S. ^{[2
]}

Xiao Y. ^{[1
,3
,4
]}

Lu D. ^{[5
]}

Liu H. ^{[1
,3
,4
]}

机构：

[1] School of Civil Engineering, Chongqing University, Chongqing

[2] Kiewit, 10055 Trainstation Circle, Lone Tree, 80124, CO

[3] Key Laboratory of New Technology for Construction of Cities in Mountain Area, Chongqing University, Chongqing

[4] National Joint Engineering Research Center of Geohazards Prevention in the Reservoir Areas, Chongqing

[5] Key Lab of Urban Security and Disaster Engineering, Ministry of Education, Beijing University of Technology, Beijing

来源：

Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering | 2023年 / 45卷 / 06期

关键词：

calcareous sand; constitutive model; fractional-order; particle breakage; state-dependent behavior;

D O I：

10.11779/CJGE20220229

中图分类号：

学科分类号：

摘要：

The calcareous sand is widely used as the construction materials in marine engineering. Particle breakage will reduce the strength and dilatancy, and increase the compressibility, which affects the security and stability of the constructions. In this study, the influences of breakage on the position and shape of the critical state line are described by introducing the crushing stress. A unified state-dependent fractional plastic flow rule is established based on fractional differential and state-dependent theory. A fractional-order plasticity boundary surface constitutive model considering the particle breakage and state-dependent behavior of the calcareous sand is established under the framework of the boundary surface plasticity and the critical state theory. The model can simulate the drained triaxial test results of the calcareous sand under different initial densities and confining pressures and reflect the state-dependent behavior under the influences of the particle breakage, which verifies the applicability of the proposed model. © 2023 Chinese Society of Civil Engineering. All rights reserved.

引用

页码：1162 / 1170

页数：8

共 37 条

[1] ZHANG Jiaming, WANG Ren, SHI Xiangfeng, Et al., Compression and crushing behavior of calcareous sand under confined compression, Chinese Journal of Rock Mechanics and Engineering, 24, 18, pp. 3327-3331, (2005)
[2] CAI Zhengyin, HOU Heying, ZHANG Jinxun, Et al., Experimental study on the influence of density and stress level on particle breakage of coral sand, Journal of Hydraulic Engineering, 50, 2, pp. 184-192, (2019)
[3] WU Yang, CUI Jie, LI Neng, Et al., Experimental study on the mechanical behavior and particle breakage characteristics of hydraulic filled coral sand on a coral reef island in the South China Sea, Rock and Soil Mechanics, 41, 10, pp. 3181-3191, (2020)
[4] SHARMA S S, ISMAIL M A., Monotonic and cyclic behavior of two calcareous soils of different origins, Journal of Geotechnical and Geoenvironmental Engineering, 132, 12, pp. 1581-1591, (2006)
[5] HASSANLOURAD M, SALEHZADEH H, SHAHNAZARI H., Dilation and particle breakage effects on the shear strength of calcareous sands based on energy aspects, International Journal of Civil Engineering, 6, pp. 108-119, (2008)
[6] GHAFGHAZI M, SHUTTLE D A, DEJONG J T., Particle breakage and the critical state of sand, Soils and Foundations, 54, 3, pp. 451-461, (2014)
[7] COOP M R., The mechanics of uncemented carbonate sands, Géotechnique, 40, 4, pp. 607-626, (1990)
[8] BANDINI V, COOP MR., The influence of particle breakage on the location of the critical state line of sands, Soils and Foundations, 51, 4, pp. 591-600, (2011)
[9] YU F W., Particle breakage and the critical state of sands, Géotechnique, 67, 8, pp. 713-719, (2017)
[10] WANG Gang, YANG Junjie, WANG Zhaonan, Evolution of critical state of calcareous sand during particle breakage, Chinese Journal of Geotechnical Engineering, 43, 8, pp. 1511-1517, (2021)

← 1 2 3 4 →