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山丘区蓄水坑灌田间工程规划设计——以山西省太谷县节水灌溉示范园为例
蔡尚彬1, 马娟娟1, 孙西欢1,2, 郭向红1, 陈倩秋1, 柴梦滢1
1.太原理工大学 水利科学与工程学院, 山西 太原 030024;2.晋中学院, 山西 晋中 030619
摘要:
[目的] 对蓄水坑灌田间工程规划设计进行研究,解决蓄水坑灌未来推广运用中的问题,为推动山丘区蓄水坑灌的规模化、产业化发展奠定基础。[方法] 以山西省太谷县节水灌溉示范园区为背景,将蓄水坑灌田间工程基本要素与微灌工程技术和低压管道输水灌溉工程技术相结合,因地制宜地对蓄水坑灌田间工程进行设计。[结果] 采用水平集雨沟整地方法;每株果树布置4个蓄水坑,蓄水坑深度40 cm;在降雨径流蓄滞能力设计为5 a一遇24 h最大暴雨量标准下,蓄水坑设计直径为30 cm;坑内布置一体化设计的底板、固壁和顶盖;环状沟深度20 cm,宽度30 cm,半径50 cm;输配水闸管系统包括干管、支管、毛管3级,管材为聚乙烯;四孔出流毛管沿环状沟内径呈环形绕树布置;给出了各管道管径、长度及进口工作水头的计算方法,以及系统工作制度的确定方法。[结论] 对整地技术、蓄水坑设计与布置技术和低压管道系统设计技术的规划设计,能够满足山丘区蓄水坑灌的特殊灌溉要求。
关键词:  山丘区  蓄水坑灌  田间工程  规划设计
DOI:10.13961/j.cnki.stbctb.2018.06.021
分类号:
基金项目:国家自然科学基金项目“蓄水坑灌条件下苹果园水分运移机制与调控研究”(51579168);山西省自然科学基金项目(201601D011053)
Farmland Works Planning and Design Under Water Storage Pit Irrigation in Hilly Regions—A Case Study at Water-saving Irrigation Demonstration Garden in Taigu County of Shanxi Province
CAI Shangbin1, MA Juanjuan1, SUN Xihuan1,2, GUO Xianghong1, CHEN Qianqiu1, CHAI Mengying1
1.College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China;2.Jinzhong University, Jinzhong, Shanxi 030619, China
Abstract:
[Objective] The farmland works planning and design under water storage pit irrigation is studied to solve the problems of future promotion and application, in order to lay the foundation for promoting large-scale and industrialized development of water storage pit irrigation in hilly regions.[Methods] Taking the water-saving irrigation demonstration garden in Taigu County, Shanxi Province as an example, water storage pit irrigation farmland works planning and design was carried on, by reference to micro-irrigation projects and low-pressure pipeline irrigation projects.[Results] Parallel rainwater harvesting ditches were adopted in land leveling. Each tree was allocated 4 pits, the water storage pits were 40 cm deep. The pit diameter was 30 cm, under the detention capacity of rainfall runoff standard of 24 hours maximum rainstorm volume occurred every 5 years. Every pit was decorated with a baseplate, a solid wall and a head cover as a whole. The annular grooves were 20 cm deep, 30 cm wide, with a radius of 50 cm. The pipe network included three levels:main pipes, branch pipes and laterals, made of polyethylene. The annular four-outlets lateral was around the tree; the calculation methods for the pipe diameters, lengths, and import working heads and the determination method for the working system were provided.[Conclusion] The planning and design of land leveling technology, water storage design and layout technology, and low-pressure pipeline system design technology can meet the special demand of water storage pit irrigation in hilly regions.
Key words:  hilly regions  water storage pit irrigation  farmland works  planning and design