三峡深水高土石围堰工程科技创新

Science and Technology Innovation of the Deep Water High Earth-rock Cofferdam in the Three Gorges Project

三峡二期深水高土石围堰是一项具有挑战性的高难度工程项目 ,其面临的技术难题远远超过国内外同类工程的水平。在 1 998— 2 0 0 2年 4年多的运行中 ,围堰保护了左岸大坝和厂房的施工基坑 ,并经受了 1 998年长江大洪水的考验 ,使二期工程得以顺利建成。二期围堰工程质量优良 ,圆满地完成了历史任务。文章从试验研究、设计施工、组织管理、安全监测及运用后拆除等各个方面进行了全过程。

The deep water high earth\|rock cofferdam in the 2nd phase construction of TGP is a hard and challenge project, whose degree of difficulty in the technological problems is much harder than that of the similar projects. During the period from 1998 to 2002, the cofferdam protected the construction pit of the left\|bank dam and powerhouse, stood the test of the heavy flood in 1998, and made the 2nd stage construction completed smoothly. The quality of the cofferdam is good, and it fulfilled the historical tasks satisfactorily. The article introduced the whole course of the systematical research through the aspects of the experimental research, the design and construction, the organization and management, the safety monitor and the cofferdam demolition etc. [