Stability analysis of unstable slopes on the left bank of Xijinghe Reservoir
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Abstract:
Xijinghe Reserv oir is lo cated in an active ear thquake zo ne, and the slopes near the dam are steep. Hence, the stability of the slopes has alw ays been o ne o f the pro blems affect ing the reserv oir secur ity. Based o n t he g eolog ical survey data and hydro2 g eolog ical conditio ns in the Xijinghe Reserv oir , the landslide zo ne in the embankment of the Xijinghe Reserv oir was analy zed in detail. T he stability analysis o f the slopes o n the left bank was perfo rmed using the imbalance thrust for ce method. T he results show ed that the slopes o n the left bank of the Xijing he Reserv oir is stable under the natural co nditions; how ever, landslides may occur in the middle par t o f the slopes under the sustained heavy r ains or ear thquakes co nditions. The co nclusio ns wer e consistent wit h the in2situ survey results.
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