[Oral Presentation]基于离散元法的路基填料软岩颗粒破碎特性分析

Organized By

Hohai University

Monash University

Co-organized by

Southeast University

Jiangxi University of Science and Technology

Northeast University

DUT-BSU Scientific Research and Innovation Center

Suzhou University of Science and Technology

State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment

Sponsoring agency

KELI SDEM Software (Dalian) Co., Ltd.

Sugon Smart Computing Information Technology Co., Ltd.

Beijing Paratera Technology Co., Ltd.

Simpop Information Technology Co., Ltd.

Important Dates

Conference Announcement

December 2023, release First Round Announcement
Abstract Submission Deadline
March 31^th, 2024
Paper Submission Deadline
April 30^th, 2024
Registration
From January 1^st, 2024
Conference Schedule
May 31^st (Friday), 2024 On-Site Registration
June 1^st to 3^rd, 2024 Conference

基于离散元法的路基填料软岩颗粒破碎特性分析

ID：92 Submission ID：246 View Protection：ATTENDEE Updated Time：2024-04-09 22:40:47 Hits：459 Oral Presentation

Start Time：Pending （Asia/Shanghai）

Duration：Pending

Session：[No Session] » [No Session Block]

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Abstract

软岩颗粒破碎特性对路基填料路用性能具有重要影响。通过构建考虑岩质矿物组分的等效晶质模型(GBM)，开展了模拟软岩颗粒点荷载强度和压碎值试验的离散元仿真；采用正交设计方法，讨论了土体结构、颗粒强度、填料密度3因素影响软岩填料压碎值的主次关系，并进行了多元回归分析。研究表明：GBM能较好描述非均质软岩颗粒沿非最小截面破坏的特征；土体结构为影响路基填料软岩颗粒破碎的主导因素，颗粒强度、堆积密度次之；基于输入法的回归方程具有较好的拟合优度与预测精度；路基软岩填料宜采用骨架密实型土体结构及较高的压实指标，以增强抗破碎能力。

Keywords

软岩颗粒破碎,等效晶质模型,点荷载强度,压碎值,离散元法,正交试验

Speaker

瑞陆

博士研究生 西南交通大学

Submission Author

瑞陆西南交通大学

罗强西南交通大学

赵春发西南交通大学

Sponsored By

Hohai University

Panel of Computational Mechanics on Granular Materials, Working Party of Computational Mechanics, Chinese Society of Theoretical and Applied Mechanics

Jiangsu Society of Theoretical and Applied Mechanics