Preprint Article Version 1 This version is not peer-reviewed

Three-Dimensional Physical Model Test Study on Mining-Induced Strata Movement of Open-Pit Final Slope

Version 1 : Received: 19 September 2017 / Approved: 19 September 2017 / Online: 19 September 2017 (07:30:14 CEST)

How to cite: Gao, K.; Yang, G.; Xu, N. Three-Dimensional Physical Model Test Study on Mining-Induced Strata Movement of Open-Pit Final Slope. Preprints 2017, 2017090087 (doi: 10.20944/preprints201709.0087.v1). Gao, K.; Yang, G.; Xu, N. Three-Dimensional Physical Model Test Study on Mining-Induced Strata Movement of Open-Pit Final Slope. Preprints 2017, 2017090087 (doi: 10.20944/preprints201709.0087.v1).

Abstract

Strata and surface movement induced by mining under open-pit final slope is a huge threat to mine safety. Physical model test is an important method to study mining-induced strata and surface movement laws. Because of rock joints predominantly control rock mass deformation and failure, thus physical model test leaving out of consideration of rock joints is difficult to reflect the influence of rock joints on rock mass deformation. Therefore, this paper presents a three-dimensional physical model test considering simplified dominant rock joints. This test process includes the design of testing equipment, the construction of physical model with dominant rock joint sets, conduction of mining and deformation monitoring. And mining under eastern final slope of Yanqianshan iron mine was selected as a case to study the behavior of mining-induced strata and surface movement.

Subject Areas

physical model test; rock joint; strata and surface movement; final slope mining; surface settlement

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