三峡工程建筑物保护层爆破技术研究STUDY ON BLASTING TECHNOLOGY FOR PROTECTION LAYER EXCAVATION OF FOUNDATION OF STRUCTURE IN THE THREE GORCGS PROJECT
陈飞，王筱华，杨占宇
Chen Fei;
摘要(Abstract)：
建筑物基础保护层开挖一直是困扰水利水电施工的难题之一。葛洲坝集团公司针对三峡工程基础开挖面广量大的特点，在取得成功试验的基础上，在三峡工程右岸纵向砼围堰永久建筑物部位进行了大规模保护层一次开挖，爆破基岩面积达１５万ｍ２以上，效果良好。
Protection layer excavation in foundation of structure is always one of difficult problems perplexing construction in water conservancy project.Based on its successful experiences,Gezhouba(Group)Corporation had taken a large scale excavation with blasting technology to the protection layer in the foundation of permanent location in the longitudinal concrete cofferdam at right bank of the blasted foundation area for Three Gorges Project is more than 150000m2 and the blasting result is satisfied.
关键词(KeyWords)：
三峡工程，保护层开挖，水平光爆，孔底柔性垫层法
Three Gorges Project Protection layer excavation Horizontal smooth blasting Method of buffering material located at the bottom of holes
基金项目(Foundation):
作者(Authors):
陈飞，王筱华，杨占宇
Chen Fei;