Πειραματική διερεύνηση διατμητικής συμπεριφοράς ασυνεχειών βράχου με υλικό πληρώσεως

THE PRESENT STUDY IS AN EXPERIMENTAL APPROACH TO THE PROBLEM OF THE SHEAR BEHAVIOR OF FILLED ROCK JOINTS. REPLICAS OF NATURAL ROUGH ROCK JOINTS WERE USED AS SPECIMENS MADE FROM A SPECIAL CEMENT BASED MODEL MATERIAL, WITH PROPERTIES REPRESENTING A COARSE GRAINED ROCK OF MEDIUM COMPRESSIVE STRENGTH IN PHYSICAL SCALE.THESE SPECIMENS WERE TESTED IN DIRECT SHEAR IN A PURPOSE- BUILT SHEAR BOX UNDER A NORMAL STRESS RANGE CORRESPONDING TO MOST CIVIL ENGINEERING WORKS. A REPRESENTATIVE FRICTIONAL MATERIAL WITH ANGULAR GRAINS (MARBLE DUST) AND A WEAK PLASTIC CLAYEY MATERIAL (KAOLIN) WERE USED AS INFILLS. THE EFFECT OF THE THICKNESS OF THESE FILLING MATERIALS, THE ROUGHNESS OF THE ROCK WALLS AND THE NORMAL STRESS ON THE SHEAR STRENGTH AND DEFORMABILITY OF THE ROCK JOINTS ARE SEPARATELY STUDIED. ALSO THE TYPE AND THE LOCATION OF THE FAILURE SURFACES AND THE NUMBER ANDDISTRIBUTION OF THE CONTACT AREAS BETWEEN THE ADJACENT ROCK WALLS ARE EXAMINED. IN EACH CASE THE CRITICAL VALUE OF THE THICKNESS OF THE FILLING MATERIAL, AFTER WHICH THERE IS NO MORE REDUCTION IN SHEAR STRENGTH IS DETERMINED. FINALLY ASIMPLE EMPIRICAL RELATION IS DERIVED FROM THE EXPERIMENTAL RESULTS AND IS PROPOSED FOR THE PREDICTION OF THE SHEAR STRENGTH OF INFILLED JOINTS.

Grantor dc:publisher

Aristotle University Of Thessaloniki (AUTH)

Year dc:date

1991

Author dc:creator

• Μανωλοπούλου-Παπαλιάγκα, Στέλλα

• Ασυνέχειες
• Βραχομάζα
• Διατμητική αντοχή
• ΔΙΕΠΙΦΑΝΕΙΕΣ ΒΡΑΧΩΔΩΝ-ΕΔΑΦΙΚΩΝ ΥΛΙΚΩΝ
• ΔΟΚΙΜΕΣ ΔΙΑΤΜΗΣΗΣ
• ΕΡΓΑΣΤΗΡΙΑΚΕΣΔΟΚΙΜΕΣ
• Ευστάθεια πρανών
• Παραμορφωσιμότητα
• ΥΛΙΚΟ ΠΛΗΡΩΣΕΩΣ
• ΦΥΣΙΚΑ ΟΜΟΙΩΜΑΤΑ
• Deformability
• Discontinuities
• FILLING MATERIAL
• Laboratory tests
• Physical models
• Rock mass
• ROCK-SOIL INTERFACES
• Shear strength
• SHEAR TESTS
• Slope stability
• Επιστήμες Μηχανικού και Τεχνολογία
• Επιστήμη Πολιτικού Μηχανικού
• Engineering and Technology
• Civil Engineering

Language dc:language

gre

Identifier

10.12681/eadd/1717

OAI identifier oai:identifier

oai:10442/1717