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Settlement Behind Bridge Abutments. The Performance of a Stony-Clay Fill in an Approach Embankment to an Overbridge on the M4 Motorway
The Report describes one of a series of investigations being carried out to establish which materials, when properly compacted, are suitable for filling behind bridge abutments. The construction and performance of stony-clay filling behind one abutment was compared to that of sandy-gravel at the other abutment of an overbridge to the Slough By-pass (M4). Observations of settlement within the well-compacted approach embankments over a period of 7 years since completion of the road have shown that a compression of 26 millimeters has occurred within the clay but there has been no movement within the gravel. Settlements of the bridge (up to 23 millimeters) and the subsoil beneath the approach embankments (up to 48 millimeters) have affected the longitudinal settlement profile of the road surface but all settlement is now virtually complete. (Author)
Settlement Behind Bridge Abutments. The Performance of a Stony-Clay Fill in an Approach Embankment to an Overbridge on the M4 Motorway
The Report describes one of a series of investigations being carried out to establish which materials, when properly compacted, are suitable for filling behind bridge abutments. The construction and performance of stony-clay filling behind one abutment was compared to that of sandy-gravel at the other abutment of an overbridge to the Slough By-pass (M4). Observations of settlement within the well-compacted approach embankments over a period of 7 years since completion of the road have shown that a compression of 26 millimeters has occurred within the clay but there has been no movement within the gravel. Settlements of the bridge (up to 23 millimeters) and the subsoil beneath the approach embankments (up to 48 millimeters) have affected the longitudinal settlement profile of the road surface but all settlement is now virtually complete. (Author)
Settlement Behind Bridge Abutments. The Performance of a Stony-Clay Fill in an Approach Embankment to an Overbridge on the M4 Motorway
G. Margason (author)
1970
23 pages
Report
No indication
English
Civil Engineering , Embankments , Settlement(Structural) , Bridge abutements , Earth fills , Clays , Compacting , Sand , Gravel , Defects , Pavements , Vehicular traffic , Roads , Great Britain