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