水工建筑物的施工期反馈设计

Feedback Design of Hydraulic Structure in Construction Stage

水工建筑物的特点是工程规模大，施工周期长，受自然条件的制约大。设计阶段对这些自然条件（如地基情况）的了解往往是不够的，本文提出水工建筑物的施工期反馈设计，利用水工建筑物施工周期较长这一特点，在施工过程中，尽可能进一步采集有关资料，并利用现代化方法进行反分析，然后把采集到的新资料和反分析结果反馈到设计中来，对建筑物的结构设计和施工设计进行修改，使之更好地适应实际情况，取得较大的经济效益和社会效益。

Generally, there are three characteristics of hydraulic structures: the scale of the structure is large, the period of construction is long and the safety and economy of the structure are highly dependent on the complicated natural conditions. In the time of design,the knowledge of the engineers about the relevant natural conditions, such as the geological condition, is limited. The concept of feedback design of hydrauleic structures is proposed in this paper. Taking advantatage of the long period of construction, further observations and measurements, back analysis should be made in the process of construction as far as possible, then the new data are fed back, and the structure design and the construction techniques and procedures are modified to fit the natural conditions better. By this technique, the hydraulic structures may be designed more rationally and great economical and social benefits may be produced.