小流域洪水計算及防洪措施

摘要: 小流域洪水具有匯流快、峰量大、預(yù)測難度大、破壞性強等特點. 白溪小流域為典型的山溪性河流, 一旦發(fā)生洪水, 將對溪河周圍的居民產(chǎn)生嚴重的威脅. 對白溪小流域的設(shè)計洪水、設(shè)計洪水位, 以及在不同險情下的臨界雨強的分析, 可以成為小流域防洪措施的實施的依據(jù), 并據(jù)此設(shè)計洪水位進行堤防等工程措施的建設(shè), 根據(jù)臨界雨強確定流域內(nèi)
的預(yù)警范圍, 建立防災(zāi)減災(zāi)體系.

關(guān)鍵詞: 小流域; 山洪災(zāi)害; 水文計算; 防洪措施

Abstract :The flood in small watershed specializes in quick affluxion, high peak value and serious destructive effect . The flood poses a
real threat to the inhabitant because of Naixi Watershed , atypical mountainriver . The designflood , the designflood level andthe critical
rainfall quantity of Baixi small watershed shuold be takeninto considerationinflood control and *** construction. Precautionsystem
should be set up to give early warninginthe certain area accordingto the critical rainfall amount .