摘要 :
A 160 (525 ft) m high asphalt concrete core rockfill dam is developed in an area of very high seismicity in Cetin, Turkey. Topographical constraints of the dam footprint impose a steep outer geometry of the dam, requiring the geot...
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A 160 (525 ft) m high asphalt concrete core rockfill dam is developed in an area of very high seismicity in Cetin, Turkey. Topographical constraints of the dam footprint impose a steep outer geometry of the dam, requiring the geotechnical properties of the rockfill to comply with certain minimum limits. Test blasting in a potential quarry and rockfill rolling compaction trials suggest that the tested gneiss/schist rock material to a large extent is weathered and weak. The friction angle of the rockfill is a decisive parameter for both the static and dynamic stability of the dam slopes and especially for the deformation of the dam crest due to strong earthquakes. The suggested rock fill material has therefore undergone detailed testing. To this end, large-scale shear tests with a 1000 mm diameter sample cylinder have been carried out at the Lulea Technical University in Sweden.
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摘要 :
A 160 (525 ft) m high asphalt concrete core rockfill dam is developed in an area of very high seismicity in Cetin, Turkey. Topographical constraints of the dam footprint impose a steep outer geometry of the dam, requiring the geot...
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A 160 (525 ft) m high asphalt concrete core rockfill dam is developed in an area of very high seismicity in Cetin, Turkey. Topographical constraints of the dam footprint impose a steep outer geometry of the dam, requiring the geotechnical properties of the rockfill to comply with certain minimum limits. Test blasting in a potential quarry and rockfill rolling compaction trials suggest that the tested gneiss/schist rock material to a large extent is weathered and weak. The friction angle of the rockfill is a decisive parameter for both the static and dynamic stability of the dam slopes and especially for the deformation of the dam crest due to strong earthquakes. The suggested rock fill material has therefore undergone detailed testing. To this end, large-scale shear tests with a 1000 mm diameter sample cylinder have been carried out at the Lulea Technical University in Sweden.
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摘要 :
A 160 m (525 ft) high asphalt concrete core rockfill dam is currently under development in Cetin, Turkey. The dam site is in an area with topographical restrictions, space limitation and seismic hazard, which required clear unders...
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A 160 m (525 ft) high asphalt concrete core rockfill dam is currently under development in Cetin, Turkey. The dam site is in an area with topographical restrictions, space limitation and seismic hazard, which required clear understanding of the compacted rockfill properties, such as particle size distribution, density, permeability and strength parameters. Field rolling trials and laboratory testing have been carried out to investigate rock material from a Gneiss/Schist quarry. The geological settings of the quarry is complex, including weathered rock, foliation planes, and sheared/crushed zones due to tectonic impact. The main purpose with the investigations has been to verify the suitability of this quarry material to meet requirements imposed by the dam design. This paper describes the field rolling trials methodology and results together with lessons learned and rationalizations throughout the tests, which hopefully can be of guidance and serve as a practical example and useful information for future field rolling trials.
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摘要 :
A 160 m (525 ft) high asphalt concrete core rockfill dam is currently under development in Cetin, Turkey. The dam site is in an area with topographical restrictions, space limitation and seismic hazard, which required clear unders...
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A 160 m (525 ft) high asphalt concrete core rockfill dam is currently under development in Cetin, Turkey. The dam site is in an area with topographical restrictions, space limitation and seismic hazard, which required clear understanding of the compacted rockfill properties, such as particle size distribution, density, permeability and strength parameters. Field rolling trials and laboratory testing have been carried out to investigate rock material from a Gneiss/Schist quarry. The geological settings of the quarry is complex, including weathered rock, foliation planes, and sheared/crushed zones due to tectonic impact. The main purpose with the investigations has been to verify the suitability of this quarry material to meet requirements imposed by the dam design. This paper describes the field rolling trials methodology and results together with lessons learned and rationalizations throughout the tests, which hopefully can be of guidance and serve as a practical example and useful information for future field rolling trials.
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