摘要
引大济湟西干渠田间工程17#、19#支渠项目区水土流失主要以水力侵蚀为主。根据不同占地类型、坡度、林草覆盖率选取不同的侵蚀模数,经加权平均计算后项目区土壤侵蚀模数背景值为1944 t/(km^(2)·a),容许土壤流失量为1000 t/(km^(2)·a)。通过工程措施、植物措施与临时措施的合理布局,对工程区进行分区防治,并结合主体工程已设计具有水土保持功能的措施,补充管道工程区、蓄水工程区、施工生产生活区、交通道路区的工程、植物和临时水土保持措施,形成了一个较为完整的水土流失防治措施体系,最大限度地减少了水土流失,为工程施工进度与时序安排、土石方调配和下阶段工程项目监理监测等提供依据。
The soil erosion in the field project area of the 17#and 19#branch canal project area of the West Trunk Channel of Huangshui River is mainly due to hydraulic erosion.Different erosion moduluses were selected according to different land types,slopes and forest and grass coverage,and the background value of soil erosion modulus in the project area was 1944 t/(km ^(2)·a)after weighted average calculation,and the allowable soil loss was 1000 t/(km ^(2)·a).Through the reasonable layout of engineering measures,plant measures and temporary measures,the project area is controlled by different areas,and the measures with soil and water conservation function designed by the main project are supplemented with engineering,plant and temporary soil and water conservation measures in pipeline engineering area,water storage engineering area,construction production and living area,and traffic road area,so as to form a relatively complete system of soil and water loss control measures.The soil and water loss is reduced to the maximum extent,which provides a basis for engineering construction schedule and timing arrangement,soil and rock allocation and supervision and monitoring of the next stage of engineering projects.
作者
焦莹
严俊
甘永波
吴帅峰
孙黎明
JIAO Ying;YAN Jun;GAN Yongbo;WU Shuaifeng;SUN Liming(Beifang Investigation,Design&Research Co.,Ltd.,Tianjin 300222,China;China Institute of Water Resources and Hydropower Research,Beijing 100048,China;China University of Geosciences Beijing,Beijing 100083,China)
出处
《水利水电技术（中英文）》
北大核心
2023年第S02期465-469,共5页
Water Resources and Hydropower Engineering
关键词
水土流失
影响因素分析
分区防治
水土保持监测
水土保持效益分析
soil erosion
analysis of influencing factors
zonal prevention and control
soil conservation monitoring
benefit analysis of soil conservation
