大江截流及二期围堰工程进度控制分析

Construction Schedule of River Closure and Phase-Ⅱ Cofferdam

大江截流及二期围堰工程项目是三峡工程总进度计划网络中的关键项目。工期紧，任务重，地质、地形条件极为复杂，技术难度极大。确保施工质量条件下的进度控制，是二期围堰工程建设的重要课题。实施中通过工序优化，提高工艺等，较好地达到进度控制的目的。

The construction of the river closure and the second -phase cofferdam was on thecritical path on the overall construction schedule of the Three Gorges Project, with a shorter con-struction time, larger quantities, complicated geological and topographical conditions and difficult-ies in technology. The control over construction schedule, under the prerequisite for ensuring con-struction quality, was the important subject of construction of the second -phase cofferdam andachieved by optimization of working sequences, improvement of construction procedures, etc.