Gliwice, Katedra Geomechaniki i Budownictwa Podziemnego i Zarządzania Ochroną Powierzchni Wydziaáu Górnictwa i Geologii Politechniki ĝląskiej w.  KORZENIOWSKI W., Ocena stanu podziemnych wyrobisk chodnikowych i Geomechanika w budownictwie podziemnym: projektowanie i budowa tuneli. Metody ograniczenia wpływu eksploatacji podziemnej na obiekty budowlane poprzez Geomechanika w budownictwie podziemnym: projektowanie i budowa.
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The basic type of rock mass reinforcement method for both preparatory and operational workings in underground metal budownictwwie mines, both in Poland and in different countries across the world, is the expansion shell or adhesive-bonded rock bolt. The article discusses results of static loading test of the expansion shell rock bolts equipped with originally developed deformable component.
This component consists of two profiled rock bolt washers, two disk springs, and three guide bars. The disk spring and disk washer material differs in stiffness. The construction materials ensure that at first the springs under loading are partially compressed, and then the rock bolt washer is budoqnictwie deformed.
Cała, Marek [WorldCat Identities]
The rock bolts tested were installed in blocks simulating a rock mass with rock compressive strength of 80 MPa. The rock bolt was loaded statically until its ultimate loading capacity was exceeded. The study presents the results obtained under laboratory conditions in the test rig allowing testing of the rock bolts at their natural size, as used in underground metal ore mines.
The relationships between the geometric parameters and specific strains or displacements of the bolt rod were described, and the percentage contribution of those values in total displacements, resulting from the deformation of rock bolt support components washer, thread and the expansion shell head displacements, were estimated.
Zasady doboru i projektowania obudowy wyrobisk korytarzowych i ich połączeń – Google Books
The stiffness of the yielded and stiff bolts was empirically determined, including stiffness parameters of every individual part deformable component, steel rod. There were two phases of displacement observed during the static tension of the rock bolt which differed in their intensity. Rockbolting and Rock Mechanics in Mining, Aachen, A case study in southern Italy, Bulletin of Earthquake Engineering,9 4 Metoda badania w temperaturze otoczenia, Pintabona and Smithson M.
Rock Mechanics Symposium and 5th U. User Account Sign in to save searches and organize your favorite content. De Gruyter – Sciendo.
Waldemar Korzeniowski walkor agh. Issue 1 First Online: Abstract PDF References Geomedhanika Recommendations Abstract The basic type of rock mass reinforcement method for both preparatory and operational workings in underground metal ore mines, both in Poland and in different countries across the world, is the expansion shell or adhesive-bonded rock bolt.
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