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能够参加这次会议,非常高兴。在坐的都是来自第一线的水电工程建设者。近20年来,我国水电发展是非常快的,到2002年底,我国水电装机容量(包括抽水蓄能电站)已超过了8000万KW。到2020年,全国的水电装机容量要达到1亿5千万kW,按现在这个进度可能会超过。目前,我们在建全世界最大的三峡工程,第一批机组将于2003年发电,现在工程进展比较顺利。除三峡工程以外,在建的较大工程就是云南的澜沧江小湾水电站,坝高292m,是国内最高的双曲拱坝,也是目前世界上最高的拱坝,其装机容量达420万kW。另外还有广西的龙滩水电站,其最终坝高216.5m。再就是面板堆石坝,我们国内目前最高的天生桥面板堆石坝坝高178m;在建成的水布垭工程230m,这也是全世界最高的面板堆石坝。在建的都是一些规模比较大、坝较高、装机容量大的电站。准备要建的还有象金沙江的溪洛渡、黄河上的拉西瓦等。水电开发技术的难度也越来越大,如小湾水电站,地形条件虽可建高拱坝,但相当复杂,难度很大,有很高的技术要求;而且坝址在地震区,在某些方面可能比三峡难度还大,很多专业性的问题仍在不断的研究中。龙滩的高碾压砼重力坝地处夏季较长、气温较高,影响了碾压砼的施工,甚至工期延长。夏季施工
I am very happy to be able to attend this meeting. In the sit are from the forefront of hydropower construction builders. In the recent 20 years, the development of hydropower in our country has been very fast. By the end of 2002, hydropower installed capacity (including pumped storage power stations) in China has exceeded 80 million KW. By 2020, hydropower installed capacity in the country will have to reach 150 GW, which is likely to exceed that now. At present, we are constructing the largest Three Gorges project in the world. The first batch of generating units will generate electricity in 2003 and the project is now proceeding smoothly. In addition to the Three Gorges Project, the larger project currently under construction is the Lancang River Xiaowan Hydropower Station in Yunnan Province, with a dam height of 292m. It is the highest double curvature arch dam in China and the tallest dam in the world with an installed capacity of 4.2 million kW. In addition there are Longtan Hydropower Station in Guangxi, the final height of 216.5m. Then there is the face rockfill dam, our present highest Tianshengqiao deck rockfill dam height of 178m; Shuibuya completed in the project 230m, which is the highest in the world panel rockfill dam. Under construction are some larger, higher dam, installed capacity of large power plants. There are also plans to build Xiluodu such as the Jinsha River, Laxiwa on the Yellow River and so on. Hydropower development technology is also more and more difficult, such as the Xiaowan Hydropower Station, although the arch top conditions can be built, but quite complex, very difficult, with high technical requirements; and the dam site in the earthquake, in some It may be more difficult than the Three Gorges area, many professional issues are still ongoing research. Longtan high RCC gravity dam is located in the summer is longer, the temperature is higher, affecting the construction of RCC, or even extended duration. Summer construction