Analysis of Wall Structures Subjected to Mining Discontinuous Deformations

Abstract

The paper presents a simplified methodology for the analysis of static building construction longwall when within the horizontal projection of the foundation can find a local threshold or a fault area. It shows the formulation of the basic assumptions of work and provides theoretical considerations leading to the determination of additional load rigid structure located above the gap. Then formulated a way that the separation of the designated load spatial body of the building on each side of the building. The results were confronted with the results of the analyzes of numerical aspects of behavior of buildings on the emerging facet of land in the form of a threshold. Analyzed the structures of rigid construction, constructed in accordance with the principles set out in the guidelines. The analysis was performed by MES with the program Abaqus and the Robot program. It adopted with the assumption that the fault coverage will not exceed the defined work called. critical distance. In the construction of the model surface mining in addition to the model of linear-elastic and model Winkler's used for substrates simplest models of the material elastic-plastic-model of the surface of plasticity in the form of a condition Coulomb-Mohr and Drucker-Prager, and model the mechanics of the critical state of Modified-Cam-Clay.