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为了能够准确地进行山洪预警预报,选取烟筒山水文站所在流域为典型流域,以河道安全泄量为出发点,根据相关的经验公式计算得到最大临界雨量和最小临界雨量,判别出山洪情况,并采用暴雨临界曲线法分析计算了烟筒山水文站的三次典型暴雨过程。结果表明,采用暴雨临界曲线法能定性判别出山洪灾害发生的危害程度,其结果与实际调查情况一致,可见该方法应用于黑龙江省典型流域合理、可靠。
In order to accurately predict the warning of mountain torrent, taking the catchment where the water station of the Chishui hydrological station is as a typical catchment, taking the discharge of the river as a starting point, the maximum critical rainfall and the minimum critical rainfall are calculated according to the relevant empirical formula, Three typical rainstorms of the Hantangshan hydrological station were calculated by using the critical curve method of heavy rain. The results show that using the critical curve method of rainstorm can qualitatively determine the damage degree of mountain torrent disaster. The result is consistent with the actual investigation. It can be seen that this method is reasonable and reliable in the typical watershed of Heilongjiang Province.