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我矿在大量采用深孔崩矿时期,由于充填工作跟不上,造成了许多大空区(体积从三万米~3到十万米~3不等)。为了观测一些重点空区的支撑矿柱内的应力变化及其与充填的因果关系,我们从七八年起陆续埋设了一些光弹应力计。从长期观测中发现:充填的力学效应与光应力计的条纹变化之间存在着密切关系。本文仅就实测资料作一探讨。
During the period when a large number of deep-hole collapse collapses, the mine was unable to keep up with the filling work. As a result, many large empty areas were created (ranging from 30,000 to 3,000 to 3,000 in size). In order to observe the stress changes in the supporting pillars in some key empty areas and their causal relationship with filling, a number of photoelastic stress gauges have been buried since 1978. From the long-term observations, it is found that there is a close relationship between the mechanical effects of filling and the stripe changes of the optical stress meter. This article only on the measured data for a discussion.