供水管网震后流量监测点的动态分级优化布局研究

为了提高管网地震监测点布局的准确性和合理性，基于管网微观水力计算模型和动态分级法，提出供水管网震后流量监测点的动态分级优化布局模型。首先，利用管网微观水力计算模型计算管段流量的影响系数，构建管段的影响系数矩阵，并利用信息熵确定管段权重；其次，标准化处理影响系数矩阵，通过聚类迭代提出供水管网地震流量监测点优化布局的动态分级方法，对供水管网震后流量监测点进行优化布置分级评定；最后，根据工程实例进行方法实践，结果表明:供水管网中的管线分类较为科学合理，地震监测点在供水管网上分布也比较均匀，而且该模型在一定程度上消除了人为因素的影响，保障了震时管网的监控效果和日常建设的合理性。

Study on dynamic classification for layout optimization of post-earthquake flow monitoring points in water supply network

In order to improve the accuracy and rationality of the layout of seismic monitoring points in the water supply network (WSN), a model on the dynamic classification for layout optimization of the post-earthquake flow monitoring points in the WSN was proposed based on the microcosmic hydraulic calculation model of pipe network and the dynamic classification method. Firstly, the influence coefficients of pipe section flow were calculated by using the microcosmic hydraulic calculation model of pipe network, and an influence coefficient matrix of pipe sections was established, then the weights of pipe sections were determined by using the information entropy. Secondly, the standardized processing was conducted on the influence coefficient matrix, and a dynamic classification method for layout optimization of seismic flow monitoring points in the WSN was put forward through the clustering iteration, and the layout optimization and classification evaluation of the post-earthquake flow monitoring points in the WSN were carried out. Finally, this method was applied in the practice according to the engineering case. The results showed that the classification of pipes in the WSN was relatively reasonable and scientific, and the distribution of seismic monitoring points in the WSN was relatively uniform. This model eliminated the influence of human factors to a certain extent, and guaranteed the seismic monitoring effect and the rationality of daily construction of the pipe network.