三峡二期围堰创新及其对我国高围堰建设的意义  

Technical Advances in Second Stage Cofferdam of TGP and Its Significance for High Cofferdam Construction in China

作　　者：包承纲[1] 

机构地区：[1]长江科学院科学技术委员会,武汉430010

出　　处：《长江科学院院报》2014年第9期33-42,64,共11页Journal of Changjiang River Scientific Research Institute

摘　　要：三峡二期围堰是三峡土建工程中最具挑战性的两个建筑物之一,它不仅对整个三峡工程十分重要,而且难度在国内外围堰建设史上也是空前的。科技工作者围绕该建筑物的难题,跟踪工程的进展,进行了长达20余年的试验研究工作,采用新理论、新方法、新技术、新材料高质量地完成了建设任务,围堰在4年的运行期状态良好,并且在拆除过程中又安排了专门的试验和资料收集工作,厘清了一些长期不清楚的疑虑,取得了一套系统的经验,并且取得了许多创新的研究成果,对高围堰和土石坝的建设极具参考意义。这些成果正在大西南水电开发中发挥作用,并促进我国水利水电技术迈上新的台阶。The Second Stage Cofferdam is one of the most challenging structures in TGP( Three Gorges Project).Not only it is very important for TGP,but also very difficult. Some construction conditions did not appear before in cofferdam construction history. Researches were carried out during the whole process of construction of 18 years,and the construction was completed by using new theory,new technology and new materials. The cofferdam worked very well in its 4-year operation. Even during its demolition,additional tests and data collection were specially arranged to explore some unclear points. Experiences of high cofferdam construction and research innovations were obtained and are applied to high cofferdam construction in west China. They will promote the water resource technology in China.

关 键 词：深水高围堰 柔性材料防渗墙 有限元分析 离心模型试验 复合土工膜 非饱和非稳定渗流分析 

分 类 号：TV551.3[水利工程—水利水电工程]