[1]刘超,曹博召,王健,等.基于WEPP模型的工程堆积体不同堆置方式的水土流失效应研究[J].自然灾害学报,2022,31(02):261-270.[doi:10.13577/j.jnd.2022.0228]
　LIU Chao,CAO Bozhao,WANG Jian,et al.Study on soil erosion effect of different stacking methods of engineering accumulation based on WEPP model[J].,2022,31(02):261-270.[doi:10.13577/j.jnd.2022.0228]
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基于WEPP模型的工程堆积体不同堆置方式的水土流失效应研究
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《自然灾害学报》[ISSN:/CN:23-1324/X]

卷:
31
期数:
2022年02期
页码:
261-270
栏目:
出版日期:
2022-04-28

文章信息/Info

Title:
Study on soil erosion effect of different stacking methods of engineering accumulation based on WEPP model
作者:
刘超1; 2;  曹博召1; 2;  王健2;  任艳2
1. 西北农林科技大学 水土保持研究所, 陕西 杨凌 712100;
2. 西北农林科技大学 资源环境学院, 陕西 杨凌 712100
Author(s):
LIU Chao1; 2;  CAO Bozhao1; 2;  WANG Jian2;  REN Yan2
1. Institute of Water and Soil Conservation, Northwest Agricultural and Forestry University, Yangling 712100, China;
2. College of Resources and Environment, Northwest Agricultural and Forestry University, Yangling 712100, China
关键词:
生产建设项目; 土壤侵蚀; WEPP模型; 坡型; 工程堆积体
Keywords:
production and construction projects; soil erosion; WEPP model; slope type; engineering accumulations
分类号:
S157.1
DOI:
10.13577/j.jnd.2022.0228
摘要:
为有效保持水土，减少生产建设项目扰动地表造成的水土流失，评价工程堆积体不同堆置方式的水土流失效应。试验基于WEPP模型，以洋县某建设项目为例建立模型数据库，分析工程弃土在设计土方量和占地面积条件下直线型、折线型、台阶型工程堆积体坡面土壤侵蚀规律，探寻不同堆置方式下堆置坡度的最优组合。结果发现：（1）底坡坡角α1=26°时，直线型工程堆积体坡面土壤侵蚀强度最弱。（2）折线型工程堆积体最优边坡组合为α1=47°，上部坡角α2=22°。（3）台阶型工程堆积体在满足设计要求的前提下最优边坡断面组合为α1=47°，α2=24.5°，马道宽d=0 m。研究结果可为减少生产建设项目工程堆积体水土流失量、综合评估区域水土流失现状提供技术支撑和理论依据。
Abstract:
To reach the aim of soil and water conservation,the reduction of soil and water loss caused by the construction of production and construction projects,the effects of soil erosion caused by different stacking methods of engineering accumulations were evaluated. The experiment was based on the Water Erosion Prediction Project (WEPP)model,taking a construction project in Yang County as an example to establish a model database to explore the law of soil erosion on the slope surface of the engineering accumulation of straight,broken,and stepped engineering under the conditions of constant earthwork and floor space,and to explore the optimal combination of stacking slopes under different stacking methods. The results showed that:(1)The bottom slope angle α1 where the soil erosion intensity of the slope surface of the linear engineering accumulation body is weakest is 26°.(2)The optimal slope combination of the broken-line engineering accumulation body is α1=47°,and the upper slope angle α2=22°.(3)Under the premise of meeting the design requirements,the optimal slope section combination of the stepped engineering accumulation is α1=47°,α2=24.5°,d=0 m. The results can provide technical parameters and theoretical basis for reducing the amount of soil erosion in the accumulation of production and construction projects and comprehensively assessing the current situation of regional soil erosion.

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备注/Memo

备注/Memo:
收稿日期:2021-1-26;改回日期:2021-8-23。
基金项目:国家自然科学基金项目(41771308)
作者简介:刘超(1998-),男,硕士研究生,主要从事土壤侵蚀研究.E-mail:Twosidesyouth@163.com
更新日期/Last Update: 1900-01-01