在花岗岩中进行开挖效应的大量实验 ,是在加拿大、日本和瑞典完成的。通过这些实验 ,对于晶体结构硬岩地下洞室周围发展的破坏 (和损坏 )区的物理过程有了一个很好的了解。这是一个有用的、可行的研究方法 ,钻眼爆破和机械开挖的损坏区范围得到了阐明 ,然而精确描述水文地质对 A large number of experiments on the effect of excavation in granite were done in Canada, Japan and Sweden. Through these experiments, there is a good understanding of the physical processes in the area of ​​failure (and damage) that develop around the caverns in the crystal structure of hard rock. This is a useful and feasible method of study. The extent of the damaged area of ​​borehole blasting and mechanical excavation has been elucidated. However, the precise description of hydrogeological