堵口技术新发展——九江堵口工程中的创新技术

介绍１９９８年洪水期间九江长江干堤出现溃口后采用的堵口方法和技术．堵口工程分截流、堵口、闭气三个阶段，经沉船初堵后，在沉船外侧下沉钢管拦截抛石，形成截流戗堤，隔断长江与溃口的直接水力联系，然后搭填钢木构架石袋组合堤和码砌石袋后戗台，最后水下抛土铺盖闭气．堵口工程中采用了钢栅抛石改流和钢木土石结构组合堤堵口等新技术，使堵口获得圆满成功．

New Development in Blocking Technique-A New Achievement in Jiujiang Blocking Engineering 98

A new blocking method adapted to the breach of the main embankment at Jiujiang on the Yangtze River during 98 huge flood is intruduced,Three steps in the blocking project are included:closure,blocking and landlocking water.First,after boats are sunk,steel piles are driven to retain rocks dumped along both sides of the sunken boats,and a closure embackment is formed to stop flow of the Yantze River into the breach;second,an embackment of steel wooden racks and stone filled packs and a back closure embankment with stone packs are build;finally,landlocking of water is conducted by dumping soil packs.A new technique blocking by means of steel racks and stonefilled packs to change the course of flow and steel piles wooden piles stone and soil packs to create an embackment is developed,and great success has been achieved.