安康水库动库容对水库防洪安全的影响研究

来源 :安全与环境学报 | 被引量 : 0次 | 上传用户:yh124712
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
将一维非恒定水力学模型与传统水库调洪演算模型相结合,建立逐时段试算动静库调洪演算模型,并将之应用于安康水库动库容计算和对水库防洪安全的影响分析中。通过采用大型稀疏矩阵非零数据打包存储及消元技术,减小计算机内存占用量,缩短运行时间,提高动静库调洪演算模型的求解效率。通过不同典型和频率洪水的动静库调洪演算对比分析得出:考虑动库容的调蓄作用后,安康水库大多数洪水的调洪最高水位有所降低,动库容对水库防洪安全起正作用;提出了降低控泄流量,提高水库下游安康市防洪标准的动库容防洪安全裕度挖潜措施。还分析了安康水库动库容对防洪安全产生负作用的原因,建议在动库容挖潜利用中慎重考虑该类不利条件。 The one-dimensional unsteady hydraulic model is combined with the traditional reservoir flood regulation calculation model to establish the flood control calculation model for dynamic calculation of static and dynamic reservoir for each period of time, which is applied to the calculation of dynamic storage capacity of Ankang Reservoir and the impact analysis of reservoir flood control safety. By adopting large-scale sparse matrix non-zero data package storage and elimination technology, the computer memory consumption is reduced, the running time is shortened, and the solution efficiency of the dynamic and static reservoir flood control calculation model is improved. Comparing and analyzing the flood regulation calculation of dynamic and static reservoir with different typical and frequent floods, it is concluded that the maximum water level of most of floods in Ankang Reservoir is reduced after considering the regulation and storage of movable reservoir, and the dynamic reservoir capacity plays a positive role in flood control safety of the reservoir. The measures to reduce the discharge of controlled discharge and increase the safety margin of moving storage capacity and flood control in flood control standard of Ankang City downstream of the reservoir are proposed. It also analyzes the reason why the dynamic storage capacity of Ankang reservoir has a negative effect on flood control safety. It is suggested that such unfavorable conditions should be carefully considered in tapping utilization of moving storage capacity.
其他文献
期刊
河流污染事故发生后,需要根据检测数据,对污染源进行科学估计.所用软件操作应简单易行,并迅速获得满足一定精度要求的数值解.基于MATLAB和Visual C++技术,对河流污染事故分别
期刊
1990~1996年,本院共收治飞行人员复发性溃疡13例,占同期溃疡病的50%,其中停飞8例,占61.53%,因反复住院治疗及地面观察时间较长,给部队战斗力带来一定影响,因此飞行人员复发性溃疡的预防,以及如何降低溃疡病
一直想出去跑跑,在网上看到“[公告]十一激情翻越秦岭西安游!有同行的吗?”让我眼睛一亮,心中感慨万分,我终于找到了志同道合的人了.
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
期刊
SummerLoveSongs是一张汇编类专辑,收录了曾风靡一时的乐队The Beach Boys在1963年到1970年之间的20首情思飞扬的欢快恋曲。那是一种尽管你正打着寒颤风雪夜归,只要塞上耳机就
主持人:rn健身教练在工作时与异性会员会有肢体上的接触.有会员表示,已经明确不让某教练接触其身体部位,该教练仍然接触其身体,并因此投诉该教练身体骚扰.如果有多名会员投诉
期刊