Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Settlement Behind Bridge Abutments: The Performance of a Medium-Clay Fill Used to Form the Approach Embankments to a Bridge on the M.1 Motorway
The report describes an investigation in which a medium-clay fill was used to complete the construction of approach embankments to a bridge on the M.1 Motorway in Leicestershire. Observations made during the placing of the fill behind the bridge abutments indicated that the state of compaction and moisture content of the medium-clay fill closely conformed to the existing M. O. T. specification. Settlement measurements made on the subsoil beneath the embankments and on the completed road surface after a period of about two years showed that only very small movements of the order of 1/8 inch, occurred within the fill material after the road was completed. These embankments performed as well as a number of bridge approaches investigated on the M. 4 Motorway (Maidenhead-By-pass) where good quality hoggin and sandy-gravel fills were used and found to be satisfactory. The investigation showed that a medium-clay soil can readily be employed as a satisfactory fill material for constructing approach embankments behind bridge abutments. The likely costs involved (including extra compaction costs) when placing common fill behind bridge abutments were examined, and are shown to be small in relation to the substantial expense which would be incurred by importing special fill materials for use in these areas. (Author)
Settlement Behind Bridge Abutments: The Performance of a Medium-Clay Fill Used to Form the Approach Embankments to a Bridge on the M.1 Motorway
The report describes an investigation in which a medium-clay fill was used to complete the construction of approach embankments to a bridge on the M.1 Motorway in Leicestershire. Observations made during the placing of the fill behind the bridge abutments indicated that the state of compaction and moisture content of the medium-clay fill closely conformed to the existing M. O. T. specification. Settlement measurements made on the subsoil beneath the embankments and on the completed road surface after a period of about two years showed that only very small movements of the order of 1/8 inch, occurred within the fill material after the road was completed. These embankments performed as well as a number of bridge approaches investigated on the M. 4 Motorway (Maidenhead-By-pass) where good quality hoggin and sandy-gravel fills were used and found to be satisfactory. The investigation showed that a medium-clay soil can readily be employed as a satisfactory fill material for constructing approach embankments behind bridge abutments. The likely costs involved (including extra compaction costs) when placing common fill behind bridge abutments were examined, and are shown to be small in relation to the substantial expense which would be incurred by importing special fill materials for use in these areas. (Author)
Settlement Behind Bridge Abutments: The Performance of a Medium-Clay Fill Used to Form the Approach Embankments to a Bridge on the M.1 Motorway
D. McLaren (Autor:in)
1967
21 pages
Report
Keine Angabe
Englisch