论述了坝面沉降分布规律，坝体固结过程及沉降变化趋势等问题。
The surface settlement distributive law and the consolidating procedure and the surface settlement variable tendency of the dam are also expounded.
为保证开挖面稳定及控制地面沉降，土压平衡盾构掘进时必须合理匹配各施工参数。
For EPB(Earth Pressure Balance)shield tunneling, one must properly choose driving parameters to maintain face stability and control ground subsidence.
另一方面，核电厂的放射性沉降物不断聚集。
On the other hand, the radioactive fallout at the plant keeps mounting.
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