Abstract
Surface lining system is one of the water-proof methods for dam and reservoirs. Recently, some new Geomembranes (GMs) with various performances have been introduced into this system. However, the methods of performance tests, design and construction for the commercial GMs have not been established yet as well as those of the newly developed GMs. Then, the following technical subjects are discussed in this paper:
The physical properties of GMs which depend on the temperature and the tractive speed.
The influence of weather condition on dynamic stabilities and watertightness at bonding parts of GMs.
The evaluation method of the water-proof pressure of GMs.
The durability of GMs based on the results of the outdoors exposure deterioration tests.
