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Geotechnical problems with the construction of the Trattenbach Bridge in Salzach Valley (Austria) (In German)
I I6A 922339 Laboratory testing of lime fixed flynsh and FGD sludge Soliman, N N Proc Symposium on Geoteclmics of Waste Fills - Theory and Practice, Pittsburg, 10-13 Sept 1989 P168-184. Publ Philadelphia: ASTM, 1990 ( A S T M Special Technical Publication 1070) Properties of 6 different mixtures of fly ash and flue gas desulphurisation sludge, stabilised with lime, have been evaluated. Grain size distribution, specific gravity, moisture-density compaction, shear strength, freeze-thaw, consolidation, and permeability were investigated in the laboratory. Samples from field cured materials up to 4 years old were tested for comparison. Addition of lime improved the properties of the mixtures, especially strength and permeability. The fixed material, with good quality control, is easily handled and suitable for landfill disposal. 922340 Constitutive behaviour of clay and pozzolan-stabilised hydrocarbon refining waste Martin, J P; Biehl, F J; Browning, J S; Van Keuren, E L Proc Symposium on Geotechnics of Waste Fills - Theory and Practice, Pittsbarg, 10-13 Sept 1989 P185-205. Publ Philadelphia: ASTM, 1990 ( A S T M Special Technical Publication 1070) Disposal of acidic hydrocarbon sludge, an asphaltic emulsion resulting from a discontinued petroleum refining process, is discussed. Conventional solidification with cement and pozzolanic materials was unsuccessful. Further trials involved microencapsulation by mixing with clayey material followed by addition of lime-fly ash mixture. This resulted in a material which was medium stiff, with low permeability and low carbon solubility. Results of leach, strength, and compression tests are presented, together with preliminary response of a landfill to in situ stresses. Both spent processing attapulgite and local silty clay were used.
Soil compaction 922341 Effective methods of construction in compacted weak soils Krutov, V I Soil Mech Found Engng V27, N5, Sept-Oct 1990, P183-188 Four basic methods used in the USSR for construction of foundations in weak soils are presented. The first is foundations in tamped pits or trenches, the second involves driving large blocks which form a base for further construction, the third reinforcing the ground with driven columns or by vibrofiotation, the last uses long driven piles. Typical conditions of soil type and stratigraphy, water content, and seasonal temperature regime where each is employed are described.
Surface Structures 922342 Rock engineering applications Franklin, J A; Dusseault, M B New York: McGraw-Hill, 1991, 431P This sequel to the book 'Rock Engineering' is directed at application of the principles previously described under practical engineering conditions. Rock engineering at the surface is
covered in the first part, with chapters on quarrying and use of stone, landslides and stability of rock excavations, rock foundations, and d:,,:r,s :rod reservoir3 Underground rock engineering is cover~',.' it. *.he second ~~art, with chapters on tunnels, caverns and ur.de:greand space, underground mining, and oil, gas, and geother:= ::1 energy. There are many informative line illustrations a:'~ photographs. ~,,=~ useful lists of references for each chapter.
Geological factors of importance in surface structures 922343 Geotechnicai problems with the construction of the Trattenbach Bridge In Snizach Valley (Austria) (In German) Schober, C Geoteclmik V14, N2, 1991, P59-63 The bridge runs along a valley on phyilite bedrock but covered with up to 15m of fluviosedimentary deposits. Major problems were expected at the eastern abutment, in an area of old landslide. 22 test boreholes were sunk, and instruments to monitor slope movements installed. Stabilisation measures for the slopes and bridge piers included wells, piles, and anchors, as appropriate.
922344 Impact of Upper McMurray Formation Marine Oil Sands on dragline mining at the Syncrnde Canada Limited open pit mine McKenna, G T; List, B R Proc 2nd International Symposium on Mine Plamdng and Equipment Selection,Calgary, 7-9 November 1990 P363-371. Publ Rotterdam: A A Balkema, 1990 Syncrude operate 70 cubic m draglines to excavate oil sand and cast it into windrows. Thin marine clay layers in the upper McMurray formation have led to problems of highwall stability and of differential settlement of the draglines. Laboratory and field investigations, back analysis of some 200 windrowdriven rotational failures, and examination of piezometric and deformation data from around the draglines have been carried out. These problems are compounded by poor trafficability of the upper (marine) layers of oil sand. Available knowledge has allowed some improvements in productivity, but further increases are necessary.
Base courses and pavements 922345 Water in the pavements and shoulders of secondary roads (In French) Bieth, J L; Bertrand, L Bull Liaison Labs Ponts Chaassees N173, May-June 1991, P15-26 Surface movements were monitored for 26 road sections during both rainy and dry seasons. Large deflections were observed during thaw and after prolonged summer rain. Although each road is unique with respect to its construction and local environment, an attempt is made to correlate deflections with amount of rainfall, temperature beneath the pavement and shoulders (which affects water mobility), and geological environment.
© 1992 Pergamon Press Ltd. Reproduction not permitted
Soil compaction 922341 Effective methods of construction in compacted weak soils Krutov, V I Soil Mech Found Engng V27, N5, Sept-Oct 1990, P183-188 Four basic methods used in the USSR for construction of foundations in weak soils are presented. The first is foundations in tamped pits or trenches, the second involves driving large blocks which form a base for further construction, the third reinforcing the ground with driven columns or by vibrofiotation, the last uses long driven piles. Typical conditions of soil type and stratigraphy, water content, and seasonal temperature regime where each is employed are described.
Surface Structures 922342 Rock engineering applications Franklin, J A; Dusseault, M B New York: McGraw-Hill, 1991, 431P This sequel to the book 'Rock Engineering' is directed at application of the principles previously described under practical engineering conditions. Rock engineering at the surface is
covered in the first part, with chapters on quarrying and use of stone, landslides and stability of rock excavations, rock foundations, and d:,,:r,s :rod reservoir3 Underground rock engineering is cover~',.' it. *.he second ~~art, with chapters on tunnels, caverns and ur.de:greand space, underground mining, and oil, gas, and geother:= ::1 energy. There are many informative line illustrations a:'~ photographs. ~,,=~ useful lists of references for each chapter.
Geological factors of importance in surface structures 922343 Geotechnicai problems with the construction of the Trattenbach Bridge In Snizach Valley (Austria) (In German) Schober, C Geoteclmik V14, N2, 1991, P59-63 The bridge runs along a valley on phyilite bedrock but covered with up to 15m of fluviosedimentary deposits. Major problems were expected at the eastern abutment, in an area of old landslide. 22 test boreholes were sunk, and instruments to monitor slope movements installed. Stabilisation measures for the slopes and bridge piers included wells, piles, and anchors, as appropriate.
922344 Impact of Upper McMurray Formation Marine Oil Sands on dragline mining at the Syncrnde Canada Limited open pit mine McKenna, G T; List, B R Proc 2nd International Symposium on Mine Plamdng and Equipment Selection,Calgary, 7-9 November 1990 P363-371. Publ Rotterdam: A A Balkema, 1990 Syncrude operate 70 cubic m draglines to excavate oil sand and cast it into windrows. Thin marine clay layers in the upper McMurray formation have led to problems of highwall stability and of differential settlement of the draglines. Laboratory and field investigations, back analysis of some 200 windrowdriven rotational failures, and examination of piezometric and deformation data from around the draglines have been carried out. These problems are compounded by poor trafficability of the upper (marine) layers of oil sand. Available knowledge has allowed some improvements in productivity, but further increases are necessary.
Base courses and pavements 922345 Water in the pavements and shoulders of secondary roads (In French) Bieth, J L; Bertrand, L Bull Liaison Labs Ponts Chaassees N173, May-June 1991, P15-26 Surface movements were monitored for 26 road sections during both rainy and dry seasons. Large deflections were observed during thaw and after prolonged summer rain. Although each road is unique with respect to its construction and local environment, an attempt is made to correlate deflections with amount of rainfall, temperature beneath the pavement and shoulders (which affects water mobility), and geological environment.
© 1992 Pergamon Press Ltd. Reproduction not permitted