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新安江水电站工程的水力枢紐怖置形式,在初步设計阶段中,选定了厂房頂溢流的重力坝坝后厂房式。当时未曾对厂房与坝体的接头方式問題进行深入研究。本工程为一級建筑物,且在地質条件和布置方式上均較特殊,厂坝接头方式的选擇,成为一个重要而又复杂的問題。因为厂坝接头方式,直接影响到厂房结构的抗震性能、各种特殊应力(溫度、干縮和变形)乃軟弱地层發生沉陷时的适应性能。此外,还在頗大程度上影响到厂房的佈置,施工方法、进度和投資等。所以在技术設計阶段中,我們对此問題进行了一系列的研究和探討。
Xin’anjiang hydropower project hydropower hub in the form of terrorist, in the initial design stage, selected the top of the plant gravity overflow dam dam factory style. At that time, the connection between the plant and the dam was never studied in depth. The project is a first-class buildings, and in the geological conditions and the layout of the more specific way, plant dam joint options, has become an important and complex issue. Because the way of dam-dam joint directly affects the seismic performance of the plant structure, various special stresses (temperature, shrinkage and deformation) are the adaptability of the subsidence in the weak formation. In addition, to a considerable extent, affect the layout of the plant, construction methods, progress and investment. So in the technical design stage, we conducted a series of research and discussion on this issue.