Skip to main content
Top

2025 | OriginalPaper | Chapter

A New Degradation Model for Rock Blocks to Simulate the Compressive Behaviors of Soil-Rock Mixtures

Authors : Siqi Sun, Junhua Xiao, Zhiyong Liu, Yingqi Bai, Ming Dai, Binglong Wang

Published in: Proceedings of the 5th International Conference on Transportation Geotechnics (ICTG) 2024, Volume 5

Publisher: Springer Nature Singapore

Activate our intelligent search to find suitable subject content or patents.

search-config
loading …

Abstract

Soil-rock mixture is a commonly used subgrade filling material in high-fill transportation engineering with heterogeneous compositions and complicated mesostructure. A novel degradation model for rock blocks is established based on the Discrete Element Method to capture the compressive behaviors of soil-rock mixtures. The gradual degradation process of rock blocks can be considered, including slight degradation, corner breakage, and fracture. Among them, the simulation method of slight degradation is proposed based on the idea of contact detach, and can reflect the nonlinear stiffness between rock block particles. The simulation of corner breakage adopts a method that considers the size effects and the Weibull distribution of rock strength. And the simulation method for fracture or smash is to search for rock blocks bearing excessive stress and replacing them with breakable clusters. The DEM model was calibrated with the laboratory test result of force–displacement curve in particle compression test. Then, a series of large-scale confining compression test simulations have been carried out to analyze the compression deformation behaviors and particle contact characteristics with different vertical stress and rock block proportion. The results show that for the selected sample, the stiffness is relatively high when the rock content is between 50 and 80%, which can be well explained from a meso-scale perspective.

Dont have a licence yet? Then find out more about our products and how to get one now:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe




 

Jetzt Wissensvorsprung sichern!

Springer Professional "Wirtschaft"

Online-Abonnement

Mit Springer Professional "Wirtschaft" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 340 Zeitschriften

aus folgenden Fachgebieten:

  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Versicherung + Risiko




Jetzt Wissensvorsprung sichern!

Literature
1.
go back to reference Zhang Z, Sheng Q, Song D et al (2023) Stability evaluation of the high fill deposit slope subjected to rainfall considering water deterioration. Bull Eng Geol Env 82(3):1–19CrossRef Zhang Z, Sheng Q, Song D et al (2023) Stability evaluation of the high fill deposit slope subjected to rainfall considering water deterioration. Bull Eng Geol Env 82(3):1–19CrossRef
2.
go back to reference Hu X, Zhang H, Boldini D et al (2021) 3D modelling of soil-rock mixtures considering the morphology and fracture characteristics of breakable blocks. Comput Geotech 132:1–17CrossRef Hu X, Zhang H, Boldini D et al (2021) 3D modelling of soil-rock mixtures considering the morphology and fracture characteristics of breakable blocks. Comput Geotech 132:1–17CrossRef
3.
go back to reference Ju Y, Sun H, Xi M et al (2018) Numerical analysis of the failure process of soil–rock mixtures through computed tomography and PFC3D models. Int J Coal Sci Technol 5(2):126–141CrossRef Ju Y, Sun H, Xi M et al (2018) Numerical analysis of the failure process of soil–rock mixtures through computed tomography and PFC3D models. Int J Coal Sci Technol 5(2):126–141CrossRef
4.
go back to reference Brzeziński K, Gladky A (2022) Clump breakage algorithm for DEM simulation of crushable aggregates. Tribol Int 173:107661 Brzeziński K, Gladky A (2022) Clump breakage algorithm for DEM simulation of crushable aggregates. Tribol Int 173:107661
5.
go back to reference Bono J, Li H, McDowell G (2020) A new abrasive wear model for railway ballast. Soils Found 60:714–721CrossRef Bono J, Li H, McDowell G (2020) A new abrasive wear model for railway ballast. Soils Found 60:714–721CrossRef
6.
go back to reference Liu Y, Gao R, Chen R (2021) A new DEM model to simulate the abrasion behavior of irregularly-shaped coarse granular aggregates. Granular Matter 23(61):1–16 Liu Y, Gao R, Chen R (2021) A new DEM model to simulate the abrasion behavior of irregularly-shaped coarse granular aggregates. Granular Matter 23(61):1–16
7.
go back to reference Chen J, Vinod J, Indraratna B et al (2022) A discrete element study on the deformation and degradation of coal-fouled ballast. Acta Geotech 17:3977–3993CrossRef Chen J, Vinod J, Indraratna B et al (2022) A discrete element study on the deformation and degradation of coal-fouled ballast. Acta Geotech 17:3977–3993CrossRef
8.
go back to reference Yan Y, Zhao C, Li Y et al (2017) Discrete element analysis of breakage characteristics of railway ballast. Chin J Comput Mech 34(5):615–622 Yan Y, Zhao C, Li Y et al (2017) Discrete element analysis of breakage characteristics of railway ballast. Chin J Comput Mech 34(5):615–622
9.
go back to reference Hu S, Jin X, Sun G et al (2021) Triaxial test and PFC-FLAC coupling simulation study on material parameters and deformation characteristics of soil-rock mixture. Chin J Rock Mech Eng 40(S2):3344–3356 Hu S, Jin X, Sun G et al (2021) Triaxial test and PFC-FLAC coupling simulation study on material parameters and deformation characteristics of soil-rock mixture. Chin J Rock Mech Eng 40(S2):3344–3356
10.
go back to reference Yang X, Zhu Y, Guo N (2017) Strength and deformation characteristic of soil-rock mixture and settlement prediction in high filled projects. Chin J Rock Mech Eng 36(7):1780–1790 Yang X, Zhu Y, Guo N (2017) Strength and deformation characteristic of soil-rock mixture and settlement prediction in high filled projects. Chin J Rock Mech Eng 36(7):1780–1790
11.
go back to reference Jia M, Liu B, Xue J et al (2021) Coupled three-dimensional discrete element–finite difference simulation of dynamic compaction. Acta Geotech 16:731–747CrossRef Jia M, Liu B, Xue J et al (2021) Coupled three-dimensional discrete element–finite difference simulation of dynamic compaction. Acta Geotech 16:731–747CrossRef
12.
go back to reference Kong X, Ning F, Liu J, et al (2019) Scale effect of rockfill materials using super-large triaxial tests 41(2):255–261 Kong X, Ning F, Liu J, et al (2019) Scale effect of rockfill materials using super-large triaxial tests 41(2):255–261
13.
go back to reference Xie Y, Zhang C, Yang J et al (2021) Study on failure characteristics and reinforcement measures of surrounding rock of glacial deposit tunnels based on coarse-grained DEM. Chin J Rock Mech Eng 40(3):576–589 Xie Y, Zhang C, Yang J et al (2021) Study on failure characteristics and reinforcement measures of surrounding rock of glacial deposit tunnels based on coarse-grained DEM. Chin J Rock Mech Eng 40(3):576–589
14.
go back to reference Wensrich C, Katterfeld A (2012) Rolling friction as a technique for modelling particle shape in DEM. Powder Technol 217:409–417CrossRef Wensrich C, Katterfeld A (2012) Rolling friction as a technique for modelling particle shape in DEM. Powder Technol 217:409–417CrossRef
15.
go back to reference Cao G, Xu M, Song E (2010) Mechanical properties of broken rock-soil mixture. J South China Univ Technol 38(11):32–39 Cao G, Xu M, Song E (2010) Mechanical properties of broken rock-soil mixture. J South China Univ Technol 38(11):32–39
Metadata
Title
A New Degradation Model for Rock Blocks to Simulate the Compressive Behaviors of Soil-Rock Mixtures
Authors
Siqi Sun
Junhua Xiao
Zhiyong Liu
Yingqi Bai
Ming Dai
Binglong Wang
Copyright Year
2025
Publisher
Springer Nature Singapore
DOI
https://doi.org/10.1007/978-981-97-8229-1_36