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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Podziwmnym were two phases of displacement observed during the static tension of the rock bolt which differed in their intensity. In “Rock at Great Depth”, edited by V.
Dilatancy of rocks under general triaxial stress states with special reference to earthquake precursors. The basic type of rock mass reinforcement method for both preparatory and operational workings in underground metal ;odziemnym mines, both in Poland and in different countries across the world, is the expansion shell or adhesive-bonded rock bolt.
In “Tectonophysics of Mining Areas”, edited by A. A new true triaxial celi for testing mechanical properties of rock, and its use to determine rock strength and deformability of Budownuctwie granite. Rossmanith, Balkema, Rotterdam Effect of the intermediate principal stress on strength and deformational behavior of sedimentary rocks at the depth shallower than m.
Pintabona and Smithson M. Springer-Yerlag, Berlin and Heidelberg Metoda badania w temperaturze otoczenia, Fracture and flow of rocks under high triaxial compression. Strength of rock under triaxial compression conditions. Effect of the intermediate principal stress on the failure of a foliated anisotropic rock. Akademicka 2 Gliwice tel.: Results of recent experimental studies on the strength of rocks under axisymmetric and asymmetric true triaxial state of compressive stresses are presented in the paper.
Faulting in an anisotropic, schistose rock under general triaxial compression. Doctoral Thesis, Hokkaido University, Sapporo Behavior of a sandstone under axi- and asymmetric compressive stress conditions. User Account Sign in to save searches and organize your favorite content. Budownivtwie and Rock Mechanics in Mining, Aachen, The stiffness of the yielded and stiff bolts was empirically determined, including stiffness parameters of every pkdziemnym part deformable component, steel rod.
Waldemar Korzeniowski walkor agh. Fracture of anisotropic rocks under general triaxial compression.
Rock Mechanics Symposium and 5th U. The rock bolts tested were installed in blocks simulating a rock mass with rock compressive strength of 80 MPa. Empirical data were approximated using the Huber-Mises-Hencky failure criterion generalised by Mogi for brittle rocks. Fracture and flow of rocks.
Zasady doboru i projektowania obudowy wyrobisk korytarzowych i ich połączeń – Google Books
The rock bolt was loaded statically until its buxownictwie loading capacity was exceeded. A case study in southern Italy, Bulletin of Earthquake Engineering,9 4 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.
Faulting of a foliated rock in a general triaxial field of compressive stresses. Abstract PDF References Article 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.
Cała, Marek [WorldCat Identities]
Using samples of a ppdziemnym sandstone, the effect of not only confining pressure but also, independently, minimum and interrnediate principal stress was determined. Effect of the triaxial stress system on fracture and flow of rocks. Effect of the triaxial stress system on the failure of dolomite and limestone. Empirical Rock Failure Criteria.
Issue 1 First Online: Sign in geomechxnika annotate. The construction materials ensure that at first the springs under loading are partially compressed, and then the rock bolt washer is plastically deformed.
De Gruyter – Sciendo. This component consists of two profiled rock bolt washers, two disk springs, and three guide bars. The study presents the results obtained under laboratory conditions in porziemnym test rig allowing testing of the rock bolts at their natural size, as used in underground metal ore mines. Ahead Of Print Volume: The article discusses results of static loading test of the expansion shell rock bolts equipped with originally developed deformable component.
The disk spring and disk washer material differs in stiffness.