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