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The E.T.S. A. Depot, Port Adelaide, has suffered structural failure and this is considered to be due to settlement of inadequately and unevenly compacted fill, aggravated by a foundation of insufficient width and improper drainage. Much of the damage...

Surface lineaments on Landsat imagery within and around the margins of the Cooper Basin show variable density and variable length, but two preferred directions. These are 55 degrees and 305 degrees and correspond to dominant structural directions in...

3 backhoe trenches and 5 drill holes (127 metres) outlined quarry site to yield 80 000 m3 of interbanded gneiss and amphibolite beneath 17 000 m3 of silty soil, clay and weathered rock to an average depth of 2 metres. Additional reserves are available...

Slope stability analysis shows the slope to be unstable when saturated and marginally stable when dry. The lower section of the slope may be rendered stable for the saturated condition by the placement of toe-fill. Recommendations are to cease...

Alternative alignments for an arterial route were investigated to determine depth to bedrock, its rippability and the slope stability of proposed major road cuts. 12 holes were drilled by the Highways Dept. 2 main rock types occur : Adelaidean...

Field work (including topographic survey and drilling of 3 fully cored drill holes totalling 78 metres), laboratory tests and computer aided stability analysis were carried out to assess the safety of a portion of the coastal cliffs near the Kingscote...

A pole-dipole resistivity survey north of Mount Gambier, delineated anomalies attributed to subsurface cavities or variations in the thicknesses of clay and sand above the Bridgewater Formation. Drilling proved them to be caused by the latter.

A quarry plan, designed to yield 100,000 cubic m of in-situ material, has been outlined in a microgranite outcrop on Eyre Peninsula which is located 15 km east of Cummins and 10 km south-east of the Uranno railway siding. Diamond drilling (3 inclined...

Subsidence of Permian glacial clays and sands was of the complex rotational type. The slide was due to softening of the cliff face soils through infiltration of rain water along dessication cracks. Recommendations, to minimize landslide frequency,...

Results of inspections and construction progress. Adequate foundations and safe batter slopes occur at all site excavations. Remedial measures only necessary in one section of cut-off trench. Leakage through the coffer dam is attributed to incomplete...

Vibrocores from the samphire marshes south of the North Arm of the Port River are used to interpret the shallow subsurface stratigraphy. 2 marine sequences of Holocene and Late Pleistocene age, consist of saturated, unconsolidated and largely...

Tests conducted at Beetaloo Reservoir showed the porous zones within the reservoir wall could be detected by density logging methods. A television camera examination of the walls of the hole was used to confim the presence of voids within the dam wall.

Drilling of one cable tool hole has confirmed the conditions encountered in a previous excavation: horizontal Quaternary sediments approximately 15m thick overlying Tertiary Gambier Limestone. Suitable bearing horizons occur at 4m below ground surface...

Engineering geological investigations which were carried out within the Little Para River gorge, 22 km north-east of Adelaide, were able to prove the existence of a suitable site for the construction of a 53 m high decked rockfill dam. Also included...

A method developed by Hoek and Brown (1980) has been used to predict the volume and shape of wedge failures which could theoretically occur from the proposed tunnel roof in the vicinity of the northern portal. Six configurations have been determined,...

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A seismic refraction survey and two cable tool drill holes were completed to determine foundation conditions for a proposed drainage structure at Dry Crek, Monarto. Drilling showed 10m of Quaternary alluvium overlying Cambrian Kanmantoo Group schist...

Recent excavations at Mangalo (Fig. 1), in connection with extensions to a silo complex, have revealed unusual foundation conditions that were not anticipated in the original site investigation. The geological section, exposed in the main foundation...

Fracture data taken from the excavated batters of the quarry was studied stereographically. It is concluded that the vertical batters are stable and will not suffer large scale planar failure.- Quarry floor foundation conditions are acceptable for the...