严寒、高震、深覆盖层混凝土面板坝关键技术研究综述

自 20 世纪 90 年代以来，新疆的水库建设已从平原水库转入山区水库建设，以混凝土面板砂砾石坝为主要的当地材料坝，得到了迅速发展。新疆于 20 世纪 70 年代末，开始引进混凝土面板坝筑坝技术，采用天然砂砾石填筑百米级高坝，是区别于一般面板堆石坝的主要特点。针对严寒地区、深覆盖层、高地震区等不良环境地质条件，全面总结基础上系统地建立了混凝土面板砂砾石坝筑坝关键技术体系，阐述了在抗震结构设计、坝体变形控制、坝体渗流控制等方面取得的创新突破，研究指出施工工艺的不断改进，大型机械压实功能的不断增强，为该坝型推广应用和安全性能提高，提供了重要的技术保障。对于提高混凝土面板砂砾石坝建设和运行管理水平具有重要意义。

Advances in key technology for concrete face dams with deep overburden layers under cold and seismic conditions

Since the 1990s, Xinjiang’s reservoir construction has changed from plain reservoirs to mountainous ones, and the concrete face sand gravel dam as the main dam by use of local materials has been rapidly developed. In the late 1970s, Xinjiang began to introduce the construction technology of concrete face rockfill dam and adopted the natural sand gravel to build dams with a height of over 100 meters, which are the main characteristics different from those of the common face rockfill dams. Aiming at hiemal zone, unfavorable environmental geology conditions such as deep overburden and high seismic zone, a key technical system for concrete face sand gravel dams is established and summarized. The innovative breakthroughs in the aspects of aseismatic structural design, deformation control and seepage control of dam body are achieved. This study indicates that the increasing improvement of construction technology and the continuous enhancement of compaction function of large machines provide important technical supports for the safety performance and popularizing application of this dam type. So it has great significance for improving the construction and operation level of concrete face sand gravel dams.