1. Underground impemeable walls for ground- water collection 2. Rationalized dam construction using roller compacted dam-concrete (RCD) 3. Dam foundation treatment works 4. Rationalized dam construction using pumped concrete [video cassette] 

 - Japan  [date of publication not identified] 
 - 1 videocassette (60 min.) : sd. , col 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ground water--Japan.<br/>Dams--Japan.