摘要：From the perspective of ecological conservation and satisfaction of people's visual and psychological demands,existing problems in the urban revetment were analyzed,and the connotation of ecological revetment as well as the selection of different ecological revetments according to different types of river ways was discussed.

摘要：基于实测断面资料建立了研究区的一维水动力模型,基于高精度DEM以及1∶10000地形图建立了研究区的二维水动力模型,并用MIKE flood将一维模型和二维模型进行耦合,构建了洪泽湖周边滞洪区一、二维耦合的洪水演进数学模型。利用2003年历史洪水资料对模型参数进行了率定,并以2007年历史洪水资料进行了验证。以洪泽湖百年一遇设计洪水为模型上边界,二河闸、三河闸以及高良涧闸的现行调度方案的水位-流量关系为模型下边界,对洪泽湖百年一遇设计洪水方案进行模拟计算,当蒋坝水位达到14.33m时,洪泽湖周边滞洪区开始滞洪,得到开始滞洪后不同时段研究区内各类洪水风险要素的动态分布情况以及最大淹没水深、淹没历时,验证了模型的合理性,可用于蓄滞洪区洪水演算分析。

摘要：Temporary high water floods may cause considerable damage. Protection against such flooding may be achieved with high dikes or walls. However, such rigid permanent structures may spoil the local architectures and views and may be quite expensive. Temporary collapsible structures do not have such disadvantages. This paper proposes such a temporary structure, consisting of a strong membrane made out of strong UHMWPE fibers (Dyneema?), a floating body and mooring cables. A two dimensional calculation scheme is presented and the calculation results are used for design considerations regarding the approximation of optimal configurations.

摘要：The indicators of flood damage assessment in the flood classification are often incompatible, and it is very difficult to use those indicators value directly for classification assessment. Projection pursuit technology can project higher dimensional incompatible data into lower dimensional sub-space, and find the projection values for optimal projection index function to get the higher dimensional data structure features, which has been improved to be reasonable and effective for flood disaster classification assessment. However, it is a bit difficult to optimize the parameters of projection index functions, as a result, that limits the applications of this method. As an emerging heuristic global optimization algorithm based on swarm intelligence, particle swarm optimization algorithm has the ability of solving complex optimization problem, but it still be easily convergent early, and can not search the global optimal solution. In this paper, a flood disaster classification assessment method based on multi-swarm cooperative particle swarm optimization is proposed, which adopts a tri-parameter Logistic curve to construct the flood disaster projection pursuit model, and uses mul-ti-swarm system particle swarm optimization method to optimize the parameters of the projection index functions. The typical test function experiment shows that this optimization method can solve the early convergence commonly found in standard particle swarm optimization algorithm, which global optimized ability is improved greatly. Applied in flood disaster assessment in HeNan Province, the results using this method comparing with others indicates that it can assess effectively the flood disaster, and has better assessment accuracy and disaster resolution.

摘要：以五泄江及其防洪保护区为研究对象,利用Mike flood软件构建侧向连接的一二维动态耦合水动力模型。详细叙述河网及防洪保护区概化、水工建筑物设置、模型参数选取。模拟超标准洪水下,漫堤洪水在防洪保护区的演进情况,得到具体的洪水到达时间、淹没范围、淹没水深等信息。研究成果可为五泄江的洪水风险分析、防洪调度、避灾转移等提供技术支持。

摘要：为了评估巢湖市城市排水(雨水)防涝风险状况,应用MIKE flood软件对巢湖城市排水防涝系统现状进行计算机建模。结合巢湖市排水防涝系统具体的现状资料提出了适宜的一维管网和二维耦合建模技术路线,应用积水点宏观校准方法进行了模型验证,采用短历时和长历时设计降雨对内涝风险进行了评估,可为城市排水防涝综合规划编制提供借鉴。

摘要：在网络安全状况划分的前提下,分析SYN flood半连接攻击的形式和特点.为了防范这种使网络资源耗尽的攻击,提出Ipv6下跟踪三次握手的SYN flood入侵和攻击的检测方法,对系统实现的数据结构进行设计与论证.最后在"一个广播的局域网"的问题规模下对该系统的有效性进行测试.结果表明,模拟检测系统能够将含错误数据的数据包丢弃,将分片的数据包重新组合成完整的数据包.

摘要：为了构建巢湖市完善的城市排水防涝工程体系,编制《巢湖市城市排水(雨水)防涝综合规划(2015-2030)》。首先,基于MIKE flood软件,建立了巢湖市城市排水防涝系统计算机模型。其次,通过设置不同的设计暴雨情景,模拟分析了1、2、3、5、10 a等不同重现期条件下现状排水系统的排水能力,并对巢湖市主城区内涝风险与区划进行了评估。结果表明:当前巢湖市主城区约有61.13%的管网现状排水能力能满足5年一遇的排涝设计要求,但仍有27.86%的管网现状排水能力未能达到1年一遇的排涝设计要求(2015年);新编规划的排水防涝工程体系能满足50年一遇设计暴雨的排水防涝要求;利用MIKE flood和情景模拟评估方法可为城市排水(雨水)防涝综合规划编制提供技术支撑。

摘要：由于西北城市河道比降大,暴雨和山洪形成河道洪水突发性强,河道橡胶坝群的修建改善了城市生态环境,同时也客观上增大了城市洪水风险。基于MIKE flood水动力学模型,对西北城市橡胶坝群河道典型案例进行了一二维耦合水动力学模型计算,研究了在河道遭遇大洪水时橡胶坝群未塌坝运行的洪水动态演进情况,定量计算了对城市可能造成的淹没情况以及洪灾损失,指明了橡胶坝群未按照防汛预案采取度汛措施而造成的潜在洪水风险,并且提出了降低城市河道橡胶坝群洪水风险的建设管理措施。

摘要：针对丘陵地区叉网式河流洪水因地形地势复杂和民房散乱等因素引起的控制管理难度较大且居民生命财产安全易受到威胁等问题,以江西省修河郭家滩至安坪港段为研究对象,基于Mike flood模型将Mike11一维河道模型和Mike21二维洪泛区模型进行动态耦合,对实际洪水在研究区的演进过程进行数值仿真模拟,以及计算出不同频率设计洪水条件下研究区行洪过程和淹没范围,分析可能受灾地区的淹没程度及数种风险要素。结果表明:文中所建模型较好地模拟丘陵地区叉网式河流在5种不同频率下的洪水演进过程,有效预测了相应频率降雨下洪水的淹没范围及流态等情况,可为丘陵地区的洪水风险预报和紧急避洪转移工作提供决策依据和技术支撑。