The Integrated Control Countermeasures on Floor Heave of Broken Soft Rock with High Ground Stress

Yao Bin Li

doi:10.4028/www.scientific.net/AMR.875-877.2259

Paper Titles

Use of Swimming Cells of Green Paramecia for Detection of Toxic Rare Earth Ions at Lethal and Sub-Lethal Concentration
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Absolute Pressure Sensor Based on Standard CMOS Process
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Determination of Synchronous Reactive Frequency Doublers EMFs Using Magnetic Field's Mathematical Simulation
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Numerical Simulation of the Optimum Geometry Parameters of a New Type Jet Pump
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A Software Tool for Automatic Identification of Dynamic Models
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The Integrated Control Countermeasures on Floor Heave of Broken Soft Rock with High Ground Stress
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Research on the Current Situation of Safety Monitoring of Tower Cranes and the Existed Problems
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Dynamic and Fatigue Study of the Automotive Upper Arm Suspension System
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Application and Integration of Control Network and Information Network
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 875-877The Integrated Control Countermeasures on Floor...

The Integrated Control Countermeasures on Floor Heave of Broken Soft Rock with High Ground Stress

Abstract:

The floor heave is one of the key issues of surrounding rock stability control during the deep well mining process. To solve the problem about floor heave occupying the most of roof and floor convergence deformation, the author analyzed the engineering geological conditions of broken surrounding rock and the floor heave features in PanEr Coal Mine East 2 mining area when it through the fault zone with high pressure. It pointed out that we should make full use of the reinforcement of the roof and laneway's side to limit the deformation of the floor, and make use of overbreak, prestressed anchor cable, bottom corner bolt, deep hole grouting and backfill as direct bottom control countermeasures.