2015•Coal TechnologyRequires access

Study of Surface Subsidence Law Based on Key Stratum Theory

Hao Bin-bi

Abstract

In order to study the influence of the key stratum to the movement of overlaying rock stratums and the surface subsidence, the locations of the primary key strata and inferior key strata are determined according to intensity criterion and rigidity criterion firstly. By using FLAC3 Dthe time-space relationship between the key stratum and surface subsidence are analyzed during mining process.

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Available abstract

Key concepts: Stratum, Groundwater-related subsidence, Geology, Key (lock), Rigidity (electromagnetism), Geotechnical engineering, Surface (topology), Subsidence