The possible water quantities flowing into tunnel are calculated initially. There are possible zones of groundwater inflowing in the section of shallow tunnel, syncline core and faulted zones.
可能引起强透水或涌水的地段主要在浅埋过沟段、向斜褶皱核部破碎岩体形成的富水段、断层破碎带及其影响带。
Water enters a lake from inflowing rivers, from underwater seeps and springs, from overland flow off the surrounding land, and from rain falling directly on the lake surface.
湖中的水来自于河流的水、地下渗入的水和泉水、从四周地面流进来的水，还有直接降到湖面的雨水。
Water enters a lake from inflowing rivers, from underwater seeps and springs, from overland flow off the surrounding land, and from rain falling directly on the lake surface.
湖中的水来自于河流的水、地下渗入的水和泉水、从四周地面流进来的水，还有直接降到湖面的雨水。
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