Study on the Movement Laws of Subsided Backfilling Body with Pillarless Sublevel Caving

Abstract

Abstract: In order to solve the safety backfilling problem of surface subsidence about underground ore-body caving mining in Jinshandian Iron Ore, the similarity principle is adopted to make similar model for the simulation test of caving. The collapse mode and impact analysis of surface backfill while mining at different section are found out. The tests show that the most active area of surface backfill is right above the drawing outlet. It provides necessary scientific basis to determine the key prevention area as backfilling and guide the safety backfilling of subsidence area.

Key words: Sublevel caving, Movement laws, Surface backfilling, Simulation tests

MA Jun, XU Meng-Guo, WANG Ping, LI Yan. Study on the Movement Laws of Subsided Backfilling Body with Pillarless Sublevel Caving[J]. Metal Mine, 2011, 40(08): 37-40+80.

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Study on the Movement Laws of Subsided Backfilling Body with Pillarless Sublevel Caving

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