In accordance with the condition of Lixi Tailings Dam at present,put forward a proposal about change upstream dam construction method into center-line dam construction method for prolonging serve period,and its feasibility is analyzed.

Based on the collection and analysis of examples of seismic damages for tailing dam constructed with upstream method at home and abroad, the present anti-seismic study condition and existed problems of the tall tailing dam with upstream method were discussed in this pape

Based on the safety assessment of it and its field conditions,the article makes a comparative study on the risk elimination and reinforcement of reservoir\'s upstream dam slope,then chooses the best plan about it.

A further analysis with numerical simulation shows the downstream buildings have marked effects on the wind forces of upstream building when the distance between buildings is short.