Experimental investigation on shear strength properties of interface between backfill and rock

被引：0
|
作者：
Liu, Guangsheng [1 ]
Wu, Weilv [2 ]
Guo, Lijie [1 ]
Yang, Xiaocong [1 ]
Zhang, Zhihong [3 ]
机构：
[1] BGRIMM Technol Grp, Beijing, Peoples R China
[2] Beijing Gen Res Inst Min & Met, Beijing, Peoples R China
[3] Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing, Peoples R China
来源：
MINEFILL 2020-2021 | 2021年
基金：
中国国家自然科学基金;
关键词：
Backfill; Interface; Shear test; Roughness; Constitutive model;
D O I：
10.1201/9781003205906-8
中图分类号：
TD [矿业工程];
学科分类号：
0819 ;
摘要：
Direct shear tests were carried out with planar interfaces between cemented backfill and rock to obtain cohesion and friction angle. Triaxial compressive tests with the same backfill were used to reveal proportions of shear parameters between interface and backfill. Nonplanar interfaces with different roughness were shear tested for further comparison. A constitutive model for interface was modified based on Mohr Coulomb criterion, which could used to investigate interaction between backfill and rock mass. Numerical simulated shear stress strain were used to validate the model.
引用
收藏
页码：80 / 89
页数：10
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