辽河下游地区给水度计算方法的对比分析

给水度的计算很多,在水资源评价中,选择单一的方法难以保证精度。本文结合潜水动态试验。对几种计算方法进行分析,力求找到有代表性的给水度推求方法,提高水资源计算的精度。     

The DPSIR Approach for an Integrated River Management Framework. A Preliminary Application on a Mediterranean Site (Kalamas River -NW Greece)

The European Water Policy introduced the necessity to apply new methodological approaches for the sustainable management of water resources. In the present paper the Driving-Pressure-State-Impact-Response (DPSIR) framework was developed as a methodological tool for the case study of Kalamas River basin (NW Greece). According to the DPSIR approach, it was revealed that the main driving forces, leading to pressures, were the agriculture, the livestock and the numerous point-pollution sources located at the catchment area. Elevated nutrients concentrations (NO₃-N:0.1–2.6 mg/L, NH₄-N:0.01–1.29 mg/L, SRP: 0.03–5.76 mg/L) along with high chlorophyll-a values (0.54–6.14 mg/m³) highlight river eutrophication. Response actions include elimination of diffuse pollution as well as reduction of the organic load through the optimization of the existed treatment plants. Since several parts of Kalamas River are designated as protected areas, specific measures for protecting biodiversity should be undertaken.     

黄河水利枢纽工程沙坡头水电站2号机组首次启动事故过程及事故分析

沙坡头河床电站安装有四台单机29MW的贯流式机组。2号机组试运行时发生烧瓦事故,本文就事故的发生及原因进行了分析,提出了防止类似事故发生的措施     

浅析小湾电站提前一年截流的必要性和可行性

小湾水电站工程原定计划进度的河床截流时间为2005年11月。工程于2002年1月20日正式开工以来，目前实际的工程进度与原计划相比，有一定滞后，可能拖延截流后的基坑开挖计划进度，对工程发电工期有较大影响。为保证工程顺利进行大坝施工和按期实现第一台机组发电的总目标，应业主的要求，对2004年截流方案进行了专题研究，2002年11月经中国水电顾问有限公司审查通过。文章综述了小湾水电站工程提前一年截流的必要性和可行性。