Stability assessment and protection design for the rock filling of dumping site in ravine

Abstract

During the construction of cities in mountain area, plenty of human waste-dump is produced because of the topographic conditions. In order to solve the problem of site leveling and rock spoils placing, the dumping site construction become an unavoidably problem which concerns two main problems the stability of rock filling and the drain of ravine. This paper selects the dumping site of the HuangJia ravine (to be built) as a case, which is a rock filling in Badong county that is an emigratory city of the reservoir region. The source of materials in the spoil site comes from the waste of landslide prevention program. Considering the engineering geological condition, hydrological geological and the characteristics of the rock filling slope, the possible damage mode of the rock filling after filling is speculated .On that basis, the un-equilibrium pushing method is used to calculate the stability of rock filling slope . Consulting the principles of rockfill dam in hydropower engineering ,the comprehensive protection measures are adopted to ensure the stability of the rock filling which includes canak revetments rolling and supporting structure . So, the protection design for the rock filling is a new method and approach of urban planning and environmental protection for the emigratory towns in reservoir region. It also has an important social and economic benefit.© 2008 Science Press Beijing and Springer-Verlag GmbH Berlin Heidelberg Geotechnical Engineering for Disaster Mitigation and Rehabilitation.