Обґрунтування заходів запобігання обваленням порід в очисних вибоях шахти «Алмазна» Ш/У «Добропільське»

Abstract

The bottlenecks of the technological scheme of the excavation site are considered. It is established that the projected lava will be worked out in the conditions of unstable roof and within the site there are several danger zones behind the collapses. In these areas there is a high likelihood of rock fall and fall, which can cause frequent breaks in the clearing and failure of the production plan. Therefore, the condition of the roof in this hollow was estimated based on the specific indicators of disturbance by its dumps, ledges and cracks. In-situ observations were made of the places of the roof rocks in the clearing. The dimensions of the dumps have been determined and the necessity of using the methods of prevention of roof collapses has been substantiated. An analysis of measures and means of preventing collapses is carried out, and preventive and emergency ways of preventing crashes are proposed.