| 中小型淤地坝涵洞式溢洪道设计技术探讨 |
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| 引用本文： | 潘建平,乔军.中小型淤地坝涵洞式溢洪道设计技术探讨[J].中国水土保持科学,2005,3(2):125-128. |
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| 作者姓名： | 潘建平 乔军 |
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| 作者单位： | 甘肃省渭源县水土保持局,748200,甘肃渭源 |
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| 摘 要： | 为了保证淤地坝的正常生产、安全度汛和持续利用,需设置泄水建筑物。涵、卧管和有闸门控制的溢洪道,在泄洪运行时需要专人管理;无闸门控制的溢洪道,虽然泄洪流量大,但断面尺寸大、投资多,很不经济。为了克服淤地坝泄水建筑物的上述缺点,将有闸门控制的溢洪道闸门设计为固定的涵洞,能控制泄洪流量,保护下游耕地、道路等,又能达到使溢洪道的断面尺寸小、工程投资少的目的。根据涵洞最大自由泄洪流量和设计洪峰流量在泄洪运行中出现的前后顺序,推算出概化图形的调洪演算公式。
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| 关 键 词： | 淤地坝 涵洞式溢洪道 概化图形 调洪演算 |
| 修稿时间： | 2004年8月2日 |
Design technology of middle and small check dam for farmland forming with culvert-like spillway |
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| PAN Jianping,Qiao Jun.Design technology of middle and small check dam for farmland forming with culvert-like spillway[J].Science of Soil and Water Conservation,2005,3(2):125-128. |
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| Authors: | PAN Jianping Qiao Jun |
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| Institution: | Weiyuan Bureau of Soil and Water Conservation, 748200, Weiyuan, Gansu, China |
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| Abstract: | To guarantee normal production, spending flood safely and sustainable use, check dam for farmland forming, it is necessary to build outlet works. Culvert and horizontal pipes and spillway with hatch control need management of person specially assigned when flood is discharged. Spillway with non-gate control can stand large quantity of flood, but need many funds, therefore not economical because of big size of section. In order to overcome disadvantages mention above, fixed culvert is designed instead of gate of spillway with hatch control. This can not only control flood discharge amount and protect farmland and road in the lower reaches, but also reach the purpose of making section size smaller and saving funds. According to largest quantity of free discharge and order of designing peak flow quantity in the flood discharge, flood regulation routing formula of general graph is computed. |
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| Keywords: | check dam for farmland forming culvert-like spillway general graph flood regulation routing |
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