针对三峡工程永久船闸地下输水系统斜井具有数量多、长度短、体型复杂、边墙高度逐渐变化等特点。

In underground water conveyance system for Three Gorges Projects permanent lock, the inclined shafts are large in number, short in length, complex in structure, changeable in height and so on.

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并指出，若是高边坡一侧的单输水系统方案，则输水廊道墙在外水压下的应力，将可能达到严重的程度。

The results also show that if only one side filling and emptying system beneath the high rock slope is operated, the stresses under external water pressure would be serious.

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