基于人类活动的玛纳斯河干流河势演变及稳定性研究

Research on River Regime Evolution and Stability of the Mainstream of the Manas River Based on Human Activities

玛纳斯河发源于天山北麓,其干流由南向北穿行于不同的地质构造,河道上下游的淤积演变表现差异较大。以玛纳斯河干流为研究区,在阐明其河道现状的基础上,分析近远期河势演变特征及其影响因素,并结合现有断面实测资料所推算的典型断面稳定指标,预估未来河势演变趋势,从而就河势变化对现状工程可能造成的影响提出建议。

The Manas River originates from the northern foot of the Tianshan Mountains,and its main stream passes through different geological structures from south to north.There are significant differences in the evolution of sedimentation in the upstream and downstream of river channels.Taking the main stream of the Manas River as the research area,and based on elucidating the current situation of the river course,the characteristics and influencing factors of river regime evolution in the near and long term were analyzed.The future trend of river regime evolution was estimated by combining the typical stability indexes calculated from the measured data of the existing section,so as to put forward suggestions on the possible influence of river regime change on the current project.