#### 期刊菜单

Development and Application of Suspended Load Grain-Size Distribution Processing System
DOI: 10.12677/JWRR.2022.114046, PDF, HTML, XML, 下载: 76  浏览: 97

Abstract: To improve the calculation efficiency of suspended load grain-size distribution and reduce the workload of manual work, this paper uses the concept of data type in object-oriented language, and starts from the hierarchical structure of gradation calculation, constructs a program architecture suitable for the compilation of sediment particle gradation calculation, and solves the cumbersome problems faced by traditional manual calculation through software integration. The architecture has rich levels, high encapsulation and strong expansibility, which can greatly improve the work efficiency, so as to speed up the construction of sediment monitoring information.

1. 引言

2. 系统的需求分析

Figure 1. Analysis and calculation flow of section suspended load grain-size distribution

Figure 2. Process of drawing grain-size distribution curve

3. 系统的设计

3.1. 设计步骤

Figure 3. Overall architecture of particle grading integration calculation system (relationship between modules)

3.2. 详细设计

Figure 5. Diagram of recursive function of grading node relation

3.3. 输出结果

1) 实测悬移质颗粒级配成果表，即实测河流断面中平均的颗粒级配成果表，包括不同粒径级占总沙样的百分比、中值粒径、平均粒径等。

2) 确定单颗、断颗关系，推求断面平均颗粒级配成果。拟定单颗断颗关系曲线，以单颗为横坐标(%)，以断颗为纵坐标(%)，点绘单颗断颗点据，通过原点确定关系曲线后，推求出断面平均颗粒级配。

3) 计算日、月、年平均悬移质颗粒级配成果。日、月平均颗粒级配采用输沙量加权法计算，采用等时距分断两个测次的时间，计算出每个测次所占输沙量从而根据该日总输沙量计算出系数，得出日、月平均颗粒级配。年平均颗粒级配采用每月的输沙量所占年输沙量的比值(系数)作为权重进行计算。

4) 将粒径级，百分比作组成的数据序列，在对数坐标中以百分比为横坐标，粒径级为纵坐标点绘断面月、年平均悬移质颗粒级配曲线。

4. 系统应用

4.1. 网络化整编计算

4.2. 颗粒级配自动识别

5. 总结及展望

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