The safety measures against deformation of the track

Chang, Sy.; Chang, K. Y.; Chen, R. J. T.; Wang, L.-C.

doi:10.2495/978-1-84564-496-3/05

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2013

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“…Layout of roadways depends on the occurrence location of coal ore. Consequently, distance between roadways maybe very short [1], which results in existing roadway disturbed by excavation of neighboring roadways under the effect of excavation unloading, construction and blasting vibration. However, in deep mine, roadway deformation control and support become more difficult due to high geostress and weak surrounding rock with mining depth increasing [2].…”

Section: Introductionmentioning

confidence: 99%

Disturbance Effects by Excavation of Neighboring Roadways in Deep Coal Mine

Xiao

Shi

2013

AMR

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Numerical simulation method and on-site dynamic monitoring are used to study a railway laneway disturbed by excavation of neighboring roadways under high in-situ stress in a deep coal mine of Huainan region. The paper presents a series of variation trend about stress state, deformation, plastic zone and tension of cables under disturbance effects based on the simulation results, and the evolution of surface displacement of railway laneway is also discussed according to on-site monitoring data. The analysis shows that disturbance effects have spatiotemporal characteristics and support structure should be installed in a short time which helps to reduce disturbance by construction of adjacent caverns.

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Section: Introductionmentioning

confidence: 99%