一、渗透压力对于混凝土重力壩的影响重力壩是古老壩型之一,几百年前,已采用浆砌条石的重力壩。本世纪开始,逐渐采用混凝土重力壩,世界各国都修筑过不少这种壩。根据最近美国工程师所做的统计,在30公尺以上的1,299个壩中,有百分之五十是重力壩。重力壩有许多缺点,如材料的强度没有充分利用,因此要消费较多的材料等。此外,重力壩内有较大 First, the infiltration pressure on the impact of concrete gravity dam Gravity dam is one of the ancient dam, hundreds of years ago, has used mortar stone gravity dam. Beginning of this century, the gradual adoption of concrete gravity dam, the rest of the world have built a lot of this dam. According to recent statistics by US engineers, 50% of 1,299 dams above 30 meters are gravity dams. Gravity dam has many shortcomings, such as the strength of the material is not fully utilized, so to consume more material and so on. In addition, the larger the gravity dam