西北水电Issue(2)：6-11,6.DOI:10.3969/j.issn.1006-2610.2025.02.002
基于BSTEM模型的黄河下游河岸稳定性影响因素研究
Study on the Influencing Factors of the Stability of the Riverbank in the Lower Reaches of the Yellow River Based on the BSTEM Model
摘要
Abstract
The frequent collapses of the riverbanks in the lower reaches of the Yellow River seriously affect the stability of the river re-gime in the lower reaches of the river and pose a threat to the flood control safety of the lower reaches of the river.To address the problem that the frequent collapses of the riverbanks in the lower reaches of the Yellow River affect the stability of the river regime and flood con-trol safety,this paper studies the main factors influencing the collapse of the riverbanks.The BSTEM model is used to simulate the stabil-ity of the riverbank slopes near the Huayuankou section in the lower reaches of the Yellow River under different riverbank emergence heights,different slopes,and different vegetation conditions.The results show that the stability of the riverbank increases with the in-crease of the emergence height.When the emergence height of the riverbank is less than 3.5 m,the stability coefficient of the riverbank is less than 1.0,and the riverbank is in an unstable state.When the emergence height of the riverbank reaches 4.68 m,the safety and stability coefficient of the riverbank is 1.3,and the riverbank is in a stable state.The stability of the riverbank decreases with the in-crease of the slope of the riverbank.When the slope of the riverbank is less than 60°,the riverbank is in a stable state.When the slope of the riverbank is 60°or more,the riverbank is in an unstable state.When the slope of the riverbank is 90°,both the collapse width and volume of the riverbank are twice those when the slope of the riverbank is 60°.When there is vegetation on the riverbank,under the ac-tion of the root-soil composite,the cohesion,tensile strength,and shear strength of the soil on the riverbank slope increase correspond-ingly,and the riverbank slope is more stable.Different vegetation roots produce different additional cohesions to the soil,and the same vegetation produces a relatively large additional cohesion in a wet environment.The research results can provide certain theoretical sup-port and practical significance for the governance and protection of the Yellow River Basin.关键词
BSTEM模型/河岸崩塌/出水高度/河岸坡度/河岸植被Key words
BSTEM model/riverbank collapse/emergence height/riverbank slope/riverbank vegetation分类
水利科学引用本文复制引用
董伟军,董宏,崔循臻,白鹏军,杜晓霞,陈志丕..基于BSTEM模型的黄河下游河岸稳定性影响因素研究[J].西北水电,2025,(2):6-11,6.基金项目
国家重点研发计划项目(2018YFC0407403) （2018YFC0407403）
国家自然科学基金项目(51709123) （51709123）
中央级公益性科研院所基本科研业务费项目(HKY-JBYW-2018-03) （HKY-JBYW-2018-03）
