Execution and quality control applied on the construction of soil-cement embankments
Execution and quality control applied on the construction of soil-cement embankments
The use of cement in the treatment and stabilization of soils in situ, using high-power equipment, allows the optimization of the existing natural resources from the sites, resulting in less expensive suitable technical solutions. Given the performance of these new technologies, it becomes necessary to have innovative methods for quality control of built-up layers in addition to the traditional laboratory tests, which are performed on site laboratories, in order to ensure the binomial deadline-quality of the construction in effective terms. This paper presents both the solution adopted in the design phase and the methodology applied in the Quality Control during the construction of large embankments (with a maximum height of approximately 70 m) on the stretches of the motorway A4 that access to the Marão tunnel, in the North of Portugal. This solution made it possible to incorporate an important volume of materials obtained from the excavation works of the line and the tunnel, and to optimize surface occupation, due to the fact of being possible to adopt steeper slopes with the cement treatment of the embankment. The solution adopted in the construction of these embankments is deemed sustainable since it maximises the usage of local resources (excavation volumes) and is better integrated in the natural landscape.
E. Fernandes; P. Antunes; J. Simoes; J. Ramalho; B. Monteiro
18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)
D - Current and new construction methods
Contact Information
- Secretary General - Dr A M McNamara
- Email: [email protected]
- Phone: +44 20 7040 8154
- City, University of London
- Northampton Square
- London EC1V 0HB. United Kingdom