当代混凝土面板堆石坝的迅速发展是世界坝工界的一大潮流。这是因为它在诸多坝型中在经济上最具竞争力。有的人认为具有混凝土薄拱坝和碾压混凝土坝才能与之较量。这是一种宏观估计。我国的经济发展情况表明,水泥产量不足,长期求过于供,今后价格必将不断上涨,这对发展混凝土坝是很不利的;而天然产状下的石料和砂砾,开采单价总地比较低且较稳定,涨价之虞相对较小,再加上后者做为 The rapid development of contemporary concrete face rockfill dam is a major trend in the world dam industry. This is because it is economically most competitive among many dam types. Some people think that with the concrete thin arch dam and roller compacted concrete dam with the contest. This is a macro estimate. The economic development in our country shows that insufficient production of cement and long-term over-supply are bound to rise in prices in the future, which is very unfavorable for the development of concrete dams. In the case of natural gravel and gravel, the unit price of mining is generally low and More stable, the risk of price increases is relatively small, coupled with the latter as