{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,19]],"date-time":"2026-10-19T03:33:03Z","timestamp":1792380783591,"version":"4.4.0"},"reference-count":27,"publisher":"EDP Sciences","license":[{"start":{"date-parts":[[2018,1,31]],"date-time":"2018-01-31T00:00:00Z","timestamp":1517356800000},"content-version":"vor","delay-in-days":30,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["E3S Web Conf."],"published-print":{"date-parts":[[2018]]},"abstract":"<jats:p>One of the problems associated with the excavation of deposit in underground mines is the local disturbance in a state of unstable equilibrium results in the sudden release of energy, mainly in the form of roof falls. The scale and intensity of this type of events depends on a number of factors. To minimize the risk of instability occurrence, continuous observations of the roof strata condition are recommended. Different roof strata observation methods used in the Polish copper mines have been analysed within the framework of presented paper. In addition, selected prospective methods, which could significantly increase efficiency of rock fall prevention are presented.<\/jats:p>","DOI":"10.1051\/e3sconf\/20182900008","type":"journal-article","created":{"date-parts":[[2018,1,31]],"date-time":"2018-01-31T08:49:12Z","timestamp":1517388552000},"page":"00008","source":"Crossref","is-referenced-by-count":15,"title":["Monitoring of the stability of underground workings in Polish copper mines conditions"],"prefix":"10.1051","volume":"29","author":[{"given":"Krzysztof","family":"Fu\u0142awka","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Piotr","family":"Mertuszka","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Witold","family":"Pytel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"250","published-online":{"date-parts":[[2018,1,31]]},"reference":[{"key":"R1","unstructured":"Pytel W., Geomechanical problems of the selection of mining excavation casing (Wyd. 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