Monitoring of the landslide occurred in the alipaşa open-pit albite mine by using GPS and the recognition of causes of this phenomenon [Alipaşa açık ocak albit madeninde meydana gelen heyelanın gps kullanılarak İzlenmesi ve oluşum nedenleri]

Landslide is the most common mass movement in open-pit mines. a serious slope-instability condition is usually accompanied by gradual development of one or more tension cracks behind or near the crest of the slope,allowing for time-displacement monitoring. surface-displacement movements employing gps and other instruments with attendant prompt analysis of slope-movement velocities are usually adequate for predicting slope behavior. this study relates to investigate the causes of this phenomena and monitoring of the slope movements in the landslide area in southeastern side of the alipaşa openpit albite mine in karpuzlu/aydın. in this context,two relations were investigated in order to determine both the mode of failure of mass movement and the recognition of landslide causes. the first one is between the trend and plunge of cumulative surface-displacement movement at each observation point and dip angle-dip direction values of the foliation planes in gneiss unit. the second is,on the other hand,between the flowing directions of the stream beds in the former topography of the landslide area and dip directions of the foliation planes located in and nearby of these beds. the affected area from the slide still threatens the mining operations. absolute lateral and vertical movements within the sliding mass in the landslide area were measured by using gps. during the monitoring studies,rainfall amounts were also measured and recorded. they have been evaluated in conjunction with the slope movement data. in order to prevent and control the sliding-movement,the excavations were implemented in the landslide area with the purpose of decreasing the slope height and the surface water was drained out of the landslide area. thus,decelerating slope movements and the positive effects of the mitigation measures were attained and monitored in this study. © 2016,tmmob - jeoloji muhendisleri odasi. all rights reserved.