桑干河干流河道治理水文分析

山西省桑干河地处大同盆地,为稳定河势、疏通河道、提高防洪标准,拟对桑干河干流河道进行治理,阐述了桑干河干流各段设计洪水计算方法及计算成果,为桑干河干流河道治理提供参考依据。     

大坝安全定期检查中的水下检查

指出第二轮水电站大坝安全定期检查水下检查的依据和目的，介绍检查设备、检查成果的提供，可作为该轮水下检查的参照。并且，回顾了若干水下检查设备历年实际使用情况。     

The potential limitations on its basin decision-making processes of granting self-defence rights to Father Rhine

ABSTRACT

Recent grants of legal rights to rivers would seem to infuse traditional anthropocentric river governance with greater eco-centrism. Through a thought experiment, we scrutinize this proposition for the Rhine basin. We consider the governance implications of granting (procedural/material) rights to the river and elaborate on their implications for the three highly institutionalized regimes of the Rhine River of water quality, flooding and transport. Since we find that a shift to more eco-centrism has already occurred and since the right granted to the river would not be absolute, we deem radical transformations unlikely.     

水泥土搅拌桩在长江干堤防渗工程中的应用

水泥土搅拌桩建造防渗墙作为堤防防渗加固处理的一种重要施工方法 ,在长江干堤整险加固工程建设中得到了大量应用。笔者对其在工程中的应用情况、施工控制参数、质量检测方法及存在的问题进行了介绍 ,并提出了搅拌桩的成墙特点及存在问题     

汾河上游河段河势特征曲线的频率分析

尽管河道整治工程设计具有明确的设计原则，但是如何判别一个确定的整治线是否满足设计要求，仍是河道整治中难以确定的问题之一。作为尝试，文中基于对水流动力轴线、自然岸线、堤防线等河势特征曲线进行系统的频率分析，提出了可用的相关判定参数。     

丁坝在三屯河河道整治中的成功经验

三屯河渠首以下3km范围内的河道，东西两岸毗邻三屯河东西干渠及耕地，河道两岸多年遭受洪水的严重侵蚀破坏，直接危及到了下游东、西引水干渠的安全。2000年，对该段河道采用丁坝型式进行了总体整治设计，当年秋季竣工。经过近3a的运行，整治效果较明显，彻底根治了水患，确保了东、西引水干渠的安全，取得了巨大的防洪效益。     

浑河抚顺段河道整治工程堤防断面型式的分析及采用

本文对浑河抚顺段河道整治工程堤防断面型式进行了技术和经济分析,结合不同的河道特性分别采用了三维植被网草皮护坡、加筋土挡墙护坡两种堤防设计新型式,实现了防洪工程与绿化、美化城市功能的完美结合。     

深圳河引水冲污的优化研究

从潮差保证率的角度，选择典型潮型作为深圳河海区边界条件，利用沿深平均二维水动力有限元数学模型和多媒体技术，对典型断面的质点运动轨迹进行追踪，分析不同流量与潮型组合时的冲污效果，通过不同流量与潮位过程的组合研究，达到优化去污成本的目的。     

Stream regulation and nitrogen dynamics in sediment interstices: comparison of natural and straightened sectors of a third‐order stream

Nitrogen dynamics were studied in the interstitial environment (i.e. hyporheic zone) of a sandy‐bottom stream in a rural landscape. A third‐order stream in Brittany (France) was studied at 11 stations (riffles) to evaluate spatial patterns of water exchange between surface and interstitial habitats. More intensive sampling was conducted in three riffles selected according to their hydrological characteristics. Chemical characteristics (especially nitrogen) and microbial denitrification were studied at 12.5 and 25 cm depth upstream, and 25 cm depth downstream of each riffle. This study confirms that the interstitial habitat of a N‐rich stream acts as a sink for the nitrate‐nitrogen. Experimental manipulation of sediment cores indicates that denitrification is limited by carbon in surface (i.e. benthic) and by nitrate in hyporheic sediments. River regulation increases inputs of fine sediments, modifies river channel location, and generates changes in the spatial patterns of biogeochemical processes, water origins, and hydrologic exchanges. Copyright © 2004 John Wiley & Sons, Ltd.     

中国洪水预报系统在贝江勾滩洪水预报中的应用

采用中国洪水预报系统的应用平台建立贝江勾滩水文站降雨径流模型洪水预报方案,利用系统自动进行模型参数的率定,该方案在精度的评定及实际应用中取得较满意的效果,解决了勾滩站长期没有洪水预报方案指导防洪的迫切的问题,为中国洪水预报在柳江流域的应用积累了经验.