It is not essential to build a storage or impounding reservoir if the water can be stored in the ground.

如果能将水储存在地下，就没有必要建造水库或蓄水池。

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As a result, I think that the induced earthquake which appeared in the reservoir is in small probability, thus strong earthquake does not caused by impounding.

本库区出现诱发地震的机率很小，不会因蓄水而诱发较强的地震。

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The vertical stress in diaphragm wall is not so high at the end of construction, but will increase considerably after reservoir impounding.

计算的施工期防渗墙垂直应力不大，但水库蓄水后有显著增加。

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