交差坑道周辺の応力分布状態について

三次元光弾性実験による研究

抄録

The crossing galleries are classified into some types as the horizontal, vertical inclined and different level crossings. In all these cases, it is necessary to take care of the roof supports, because the stressconcentration in the crossing area is increased. Therefore, the authers performed some three dimensionally photoelastic experiments using the stress freezing method in order to investigate the fundamental problems of stress-concentration around the intersection part of crossing galleries.
In this paper, the authers report of all the relationships between the intersectional angle or the difference of level and the states of stress distribution around the crossing galleries, based on the result of these systematic experiments.