This paper shows that fresh fracture can be achieved by man - made breaking to judge the breaking quality indirect ly.

本文叙述了通过人工开裂，获得新鲜断口，以间接判断断口性质。

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There are fractured zone water disaster, glide fracture water disaster, mining cranny water disaster, man-made channels water disaster based on flood water channel classification.

根据突水通道分类，有破碎带水害、滑动构造水害、采动裂隙带水害、人为通道水害等。

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