Active Countermeasure Mechanism to Waste Dump Based on Spatial Effect

Abstract

Due to the difficulty of expropriation, dump technology is experiencing the tendency of higher bench, heavier dumping intensity and larger dumping equipment. Therefore, accidents of dump bench instability or general shear failure on foundation soar rapidly. The capacity decreases because of reducing the heap height, and the high cost would be unacceptable if the soft layers of foundation were strengthened or cleared up. The practicality of passive control measures, such as rockfill dams and retaining walls locating at slope toe is analyzed; the validity of catch drains is evaluated, based on the interacting characteristics between the waste dump and the foundation. The design principles, permission of deformation and moderate failure, are submitted with considering consequence to surroundings. Active countermeasure mechanism is established according to spatial effect, reasonably using dumping-site space and adjusting time-space relation during dumping.