北京航空航天大学学报 ›› 2020, Vol. 46 ›› Issue (6): 1151-1158.doi: 10.13700/j.bh.1001-5965.2019.0403

• 论文 • 上一篇    下一篇

基于BP-GIS的京津冀碳钢土壤腐蚀速率地图研究

李敬洋1,2, 王震1, 陈怡1, 祁俊峰1, 杨斌2   

  1. 1. 北京卫星制造厂有限公司, 北京 100094;
    2. 北京科技大学 国家材料服役安全科学中心, 北京 100083
  • 收稿日期:2019-07-19 发布日期:2020-07-02
  • 通讯作者: 李敬洋 E-mail:jing_yang_li@163.com
  • 作者简介:李敬洋 男,硕士,工程师。主要研究方向:材料服役安全、增材制造、空间制造等。

Beijing-Tianjin-Hebei carbon steel soil corrosion rate map based on BP-GIS

LI Jingyang1,2, WANG Zhen1, CHEN Yi1, QI Junfeng1, YANG Bin2   

  1. 1. Beijing Spacecrafts Manufacturing Co., Ltd., Beijing 100094, China;
    2. National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing 100083, China
  • Received:2019-07-19 Published:2020-07-02

摘要: 针对京津冀地区碳钢土壤腐蚀问题,应用误差反向传播(BP)神经网络,以主影响因素为输入参数,分别构建了针对京津冀地区碳钢土壤腐蚀速率模型。根据各主要土壤腐蚀影响因素数值,对碳钢土壤腐蚀速率实现了预测。并基于地理信息系统(GIS)绘制了中国年均碳钢土壤腐蚀速率地图。研究表明:京津冀地区单年均碳钢土壤腐蚀速率西北高东南低,多年均碳钢土壤腐蚀速率基本均匀分布;pH、含盐总量、土壤温度、全氮量和有机质对碳钢土壤腐蚀较为显著;1、3、5和8年均碳钢土壤腐蚀速率分布最大为6.159、2.322、2.614和3.467 g/(dm2·a)。

关键词: 碳钢, 反向传播(BP)神经网络, 地理信息系统(GIS), 京津冀, 土壤腐蚀速率地图

Abstract: In view of the corrosion of carbon steel soil in Beijing-Tianjin-Hebei region, the prediction model for corrosion and pore corrosion in soil were developed using Back Propagation (BP) neural network. The main influencing factors were used as input parameters. According to the values of main soil corrosion influencing factors, the carbon steel soil corrosion rate was predicted. Average annual carbon steel soil corrosion rate in China was mapped based on Geographic Information System (GIS). The research shows that the average annual corrosion rate of carbon steel in Beijing-Tianjin-Hebei region is higher in the northwest and lower in the southeast in one year, and the average annual corrosion rate is basically uniformly distributed in many years. The carbon steel soil corrosion caused by pH value, total salt content, soil temperature, total nitrogen content and organic matter is more significant. The maximum average annual corrosion rate of carbon steel in 1, 3, 5 and 8 years is 6.159, 2.322, 2.614 and 3.467 g/(dm2·a).

Key words: carbon steel, Back Propagation (BP) neural network, Geographic Information System (GIS), Beijing-Tianjin-Hebei, soil corrosion map

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