Study on Bingham fractional damage model of backfill material under different moisture content conditions.

ABSTRACT: Filling mining technology is an important representative technology to realize green and low-carbon mining. The backfill materials have distinct rheological characteristics under the long-term action of formation loads and groundwater seepage. In order to study the creep characteristics of backfill materials under different moisture contents and reveal their aging-mechanical properties, based on the Riemann-Liouville fractional calculus and damage mechanics theory, the fractional element and damage variables are introduced to improve the traditional Bingham model, and the fractional Bingham creep damage model is proposed. Based on the experimental data of gangue cemented backfill under different moisture content, the parameters of the creep model are obtained by using user-defined function

SUBMITTER: Wang J 

PROVIDER: S-EPMC10798546 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature