Analysis of continuous compaction control data of large scale test rockfills

Valérie St-Gelais, Jean Côté, Marc Smith

In the proceedings of: GeoOttawa 2017: 70th Canadian Geotechnical Conference; 12th joint with IAH-CNC

Session: Geohazards V

ABSTRACT: Continuous compaction control (CCC) technology allows a constant quality control of the placed fill by the use of the compaction meter value (CMV). CCC was recently used for the construction of a major asphalt core rockfill dam (ACRD). Because of its thin core, compaction of its rockfill zones is critical to reduce excessive deformation and shear. In order to determine the optimal compaction method for construction this dam, 10 test pads were constructed. Each test pad was compacted with CCC technology and in situ test were also performed. The objectives of this study are to establish a representative compaction meter value (CMVr) for each test pad, assess its spatial variability and then correlate it to deformation moduli measured in situ. Results show CMVr values are less variable than the measured CMV obtained at the end of compaction. Furthermore, the correlations obtained with the in situ measured moduli tend to agree with those founded in the literature.

RÉSUMÉ: La technologie de contrôle de compactage en continu (CCC) permet un contrôle de qualité compaction meter value (CMV). age à noyau asphaltique (ACRD), cette technologie a été utilisée. Dû à son noyau très mince, compactage des de ce type de barrage doit être accrue de façon à minimiser les tassements. Ainsi, afin de définir la méthode de Les planches ont été compactées utilisant la technologie CCC, puis divers essais in situ ont été réalisés. Les objectifs de cette étude sont compaction meter value représentatif bilité spatiale pour ensuite relier le CMVr avec des modules mesurés in situ. Les résultats montrent une variation plus faible des valeurs de CMVr que des valeurs de CMV obtenue à la fin de la compaction. De plus, les corrélations obtenues issues des essais in situ suivent relativement bien celles issues de la littérature.

Access this article:
Canadian Geotechnical Society members can access to this article, along with all other Canadian Geotechnical Conference proceedings, in the Member Area. Conference proceedings are also available in many libraries.

Cite this article:
Valérie St-Gelais; Jean Côté; Marc Smith (2017) Analysis of continuous compaction control data of large scale test rockfills in GEO2017. Ottawa, Ontario: Canadian Geotechnical Society.

@article{geo2017Paper659,author = Valérie St-Gelais; Jean Côté; Marc Smith,title = Analysis of continuous compaction control data of large scale test rockfills,year = 2017}