Analysis The Slope Stability Inner Spoil Dump Of Zhunge'er Heidaigou Open-pit Coal Mine

In the west of our country has the element of inner mountain and basin, geology construct activity intensity. Inside and outside force reciprocity, so as to it is severity for the geology disaster. The distortion and destroy in the Nature rock slope and artificial slope is often occur. If can't forecast the stability of the slope ,not only can cause the bad loss of the property, but also cause large number of the person casualty.Heidaigou open-pit coal mine inner spoil dump side slope big, Also follows close on picks the working surface exhaustedly, its stable influence strip mine production, if will have the landslide to be able to create the heavy loss to the strip mine, therefore, this article has conducted the research to in row of depot side slope stability. The physics dynamics index of the rock and dust adopt the methods, which combined with the field sampling and the experimental, and through labor the factors which influence the stability of the inner spoil dump: the physical dynamo index of the rock and dust,the essential of the slope,the slope shape and the Spoil-disposing Mode, and so on. Considered the characteristic of the methods and the Artificial side slope is composed which by the loose earth crag mixture to analysis the stability of the slope and the characteristic of the strip mine inner spoil dump colligation. In the last, we choose the Lagrange element method, it adopted the method of difference to seek result, and constitute the slope model of the physics dynamics index. Study the state of every grid the variational state with the time,it is say used the FLAC to note the maximal imbalance and the slope displacement vector in order to explain the stability of the slope. Applied the strength reduction method to ensure the safety factor fast and effective, Heidaigou open-pit coal mine slope is stabilization, and the safety factor is 1.4, After the practice examination is reliable.