三峡工程大江截流实况及其分析  

Actual situation and analysis of TGP main river closure

作　　者：杨光煦 

出　　处：《人民长江》1998年第1期2-4,共3页Yangtze River

摘　　要：三峡大江截流实况表明，在大流量、深水、低流速河道中，采用平抛垫底、宽戗堤、降低戗堤水面以上高度，采用级配较均匀、连续的石渣及块石，全断面均匀抛投进占等措施是合理的，实现了安全截流。抛填水深、最大日及小时抛投强度均居世界首位，创下了单戗立堵截流施工中上、下游围堰戗堤同一日合龙纪录。截流施工中，航运畅通，实现了高质量大江截流工程，标志着我国截流技术水平已处于世界领先水平。The actual situation of TGP main river closure shows that for the river closure in case of large discharge,deep water and low flow velocity,adopting such measures as horizontal bedding dumped in advance,wide pilot dyke,low freeboard for pilot dyke,using uniformly and continuously graded ballast,and uniformly dumping over the whole section are reasonable,and the river closure was safely achieved.

关 键 词：立堵法截流 合龙 施工方法 三峡水利枢纽 

分 类 号：TV551.21[水利工程—水利水电工程] TV632.63