... ABSTRACT The International Society of Rock Mechanics and another scientific organization distinguish six levels of alteration of rocks: From VI degree (totally weathered rock) to I degree (fresh rock). Habitually, is not easy to introduce the pile foundations in fresh rock. For this motive...

..., in localities where there are a variety of rock types which are fully or partially disintegrated or decomposed and where adjacent beds are characterized by different grades of weathering, the form and extent of weathered rock mass profiles is irregular and ill-defined. This means that characterization of rock...

...iJ'j 19pti~al ~e~ig~.at highway slopes in a highly weathered rock Deterrnlnation du profil optlrnal des versants routiers dans une roche hautement desagregee Optimierte GestaltLing von Strassenboschungen in stark verwittertem Gebirge" ~t J I . .. WON-KYONG SONG & KONG-eHANG HAN, Korea Institute...

... was found in the weathered rock. Geological section around the col1apsedtunnel. 237 Table 2. Dimensions and physical properties of the supports Young's CTC To found out the cause of tunnel collapse and redesign of tunnel Classifications 'Modulus (GPa) Dimension 'I (m) support, and characterize the ground...

... ABSTRACT: This paper describes a number of load tests on drilled piers installed in weathered rocks and residual soils derived from the Bukit Timah granite and the sedimentary Jurong Formation in Singapore. Both full-scale drilled piers and miniature bored piles were tested. The full scale...

... Generalized geologic section used for analysis of Atlanta subway tunnels (Rose ~ 1979). The partially weathered rock ranges from 1.5 m (5 ft) to 4.5 m (15 ft) thick. The predominant rock is biotite gneiss and biotite amphibole gneiss. The upper 3.0 m (10 ft) to 6.0 m (20 ft) of the rock is characterized...

... to the first it is improbable that a third one will appear to bisect them, because maximum ten sile stress will in the meanwhile have been reduced by about 89%. deformabll ity borehole Rocha bearing zoning Upstream Oil & Gas weathered rock diameter rock mass deformability dllatometer test...

... Arbeitsweise war angenommen. 1. INTRODUCTION This paper describes a procedure for evaluating the stability of steep natural and cut slopes in weathered rocks, based upon the analytical solution to a system of differential equations of static equilibrium for a connected, sliding body. The elements on Which...

... quartzite situ loading test compressibility elasticity shale moduli settlement bedrock determination argillaceous shale construction materials central bohemia Ordovician shale ordovician rock mechanical property Letna Formation Upstream Oil & Gas weathered rock Prague loading test...

... the layers 2000-2100 m/sec and in the jointed and weathered rocks 200-250 m/sec. iJm/sec 4000 3000 2000 2 3 4 Wate,-a6so"ZptLon Ln 0/0 Fig. 2 - Relation between the elastic waves rate and the water absorption of rock 176 As an indirect criterion of the disturbance degree of the rock the water absorption...

... of. the first group which differ more than twice for unweathered and weathered rocks. Fresh and weathered monzonite have res- pectively: modulus of elasticity 5 x I()5 kg/cm2 an~ 6 x I~ kg/cm2; ultimate bearing reSIstance 1740 kg/cm2 and 460 kg/cms; supersound velocity 5000 m/s and 1400 m/s; bulk density 2.61 g...