河曲露天煤矿内排土场振动模拟试验

以河曲露天煤矿选煤厂东侧内排土场排放到界的永久边坡为研究对象，建立了室内相似模拟模型，根据该排土场边坡上下层的料构成的差异情况，以+1 004.0 m为分界，采取了不同的物料粒径级配建立模型。试验中的振动作用由振动试验台产生，研究了该边坡模型在10~40 Hz不同振动作用形式下的响应规律，通过对试验过程中现象的观测，揭示了不同振动作用形式下的物料运动类型、滑移规模与边坡破坏发展过程。

Experimental study on vibration simulation of inner dump in Hequ Open-pit Coal Mine

An indoor similarity simulation model was established by taking the permanent slope discharged from the internal dump in the east of Hequ Open-pit Coal Preparation Plant to the boundary as the research object.According to the difference of the material composition of the upper and lower layers of the slope of this dump，taking +1 004.0 m as the boundary，different material particle size gradations were adopted to establish the model.The vibration effect in the test was generated by the vibration test bench，and the response law of this slope model under different vibration modes from 10 Hz to 40 Hz was studied.Through observation of phenomena in the experiment，the types of material movement，slip scale and development process of slope failure under different vibration action forms were revealed.