红水河
紅水河
홍수하
HONGSHUI RIVER
2015年
2期
1-3,19
,共4页
岩滩水电站库区%排涝工程%设计洪水
巖灘水電站庫區%排澇工程%設計洪水
암탄수전참고구%배로공정%설계홍수
Yantan reservoir area%drainage works%design flood
岩滩水电站蓄水致使东兰县长乐乡内涝区排水通道落水洞出口被淹，地下河通道水泄水能力下降，暴雨积水不能及时排泄而引发岩溶浸没内涝。在缺乏水文资料的情况下，根据岩溶河流产汇流特点，暴雨资料，采用堰流公式、洪峰模数法等方法分暗河和明流两部分计算洪峰流量，然后按时段叠加得出设计洪水过程线，为排涝提供依据。
巖灘水電站蓄水緻使東蘭縣長樂鄉內澇區排水通道落水洞齣口被淹，地下河通道水洩水能力下降，暴雨積水不能及時排洩而引髮巖溶浸沒內澇。在缺乏水文資料的情況下，根據巖溶河流產彙流特點，暴雨資料，採用堰流公式、洪峰模數法等方法分暗河和明流兩部分計算洪峰流量，然後按時段疊加得齣設計洪水過程線，為排澇提供依據。
암탄수전참축수치사동란현장악향내로구배수통도낙수동출구피엄，지하하통도수설수능력하강，폭우적수불능급시배설이인발암용침몰내로。재결핍수문자료적정황하，근거암용하유산회류특점，폭우자료，채용언류공식、홍봉모수법등방법분암하화명류량부분계산홍봉류량，연후안시단첩가득출설계홍수과정선，위배로제공의거。
During impoundment of Yantan reservoir, Karst immersion-waterlogging hazard occurred in Changle Town of Donglan County because of reduced discharge capacity of underground-river channel resulting from the submerged sinkhole outlet. Due to lacking of hydrological data, peak flows of underground-river and open flow were calculated by weir formula and flood peak modulus method based on the rainfall data and the runoff characteristics of Karst River, and then the design flood hydrograph was obtained by period superposition, which provided a basis for Changle drainage works.
