Emergency rehabilitation of Selby interchange on M2, in Johannesburg, South Africa
نویسندگان
چکیده
In this paper, the retrofitting and rehabilitation of M2 Selby interchange, on in Johannesburg, Gauteng, South Africa, is presented. After noting large shear cracks pier columns, highway had to be closed down, for 10 months. The client project was Johannesburg Roads Agency (JRA), contractor Stefanutti Stocks Civils, consultant WSP. commenced with design jacking towers which were used jack up support drop-in slabs. system designed as a kit that can reused future. demolition piers posed some difficulties due small working area within constraints jacked slabs, remained position. accordance TMH7. A key focus creep calculation, unique geometry mushroom heads. Granite aggregates chosen reduce cantilever ends precambered. slabs lowered aligned only at end timeline just time Thorma joints asphalt added before opening bridge public.
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ژورنال
عنوان ژورنال: MATEC web of conferences
سال: 2022
ISSN: ['2261-236X', '2274-7214']
DOI: https://doi.org/10.1051/matecconf/202236404001