LONG TIME BEHAVIOR OF ASPHALT CONCRETE LINED RESERVOIRS AND DAMS AND THEIR FOUNDATION

摘要

The technology of sealing reservoirs and dams with an upstream asphalt concrete facing is more than 60 years old and very often used in Europe and also other continents. During the last decades the placing method of the impervious material as well as the design philosophy of the lining, the asphalt concrete mixture and other for the life time of the sealing important parameters have been adjusted due to the gained experience and the improved placing technology. The report will focus on several long term experiences of upstream asphalt concrete linings for reservoirs, dams and channels, the ageing phenomena and influence, the average life time of an asphalt concrete sealing, the requirements as well as the behaviour of the foundation during construction, operation and long term refurbishment, common technologies and repair methods of local damages or a general rehabilitation of the lining.