It is not essential to build a storage or impoundingreservoir 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。
2
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。
3
The vertical stress in diaphragm wall is not so high at the end of construction, but will increase considerably after reservoirimpounding.