水利与建筑工程学报
水利與建築工程學報
수리여건축공정학보
TECHNIQUE OF SEEPAGE CONTROL
2011年
5期
77-81
,共5页
拱坝泄洪%墩尾优化%水垫塘%底板压强
拱壩洩洪%墩尾優化%水墊塘%底闆壓彊
공패설홍%돈미우화%수점당%저판압강
flood discharging of arch dam%optimization of pier tail%cushion pool%pressure intensity on floor
试验研究了拱坝挑流泄洪时优化闸墩墩尾形状对水垫塘底板上最大冲击压强的影响,结果表明对减小冲击压强有显著效果;从力学观点出发,构造了对水垫塘底板上相对最大冲击压强的表达式,其中包括四个参数,它适用于等宽挑坎和扩散坎,用28个工程实测数据进行了拟合,实测值和计算值的相对误差在可接受范围内。
試驗研究瞭拱壩挑流洩洪時優化閘墩墩尾形狀對水墊塘底闆上最大遲擊壓彊的影響,結果錶明對減小遲擊壓彊有顯著效果;從力學觀點齣髮,構造瞭對水墊塘底闆上相對最大遲擊壓彊的錶達式,其中包括四箇參數,它適用于等寬挑坎和擴散坎,用28箇工程實測數據進行瞭擬閤,實測值和計算值的相對誤差在可接受範圍內。
시험연구료공패도류설홍시우화갑돈돈미형상대수점당저판상최대충격압강적영향,결과표명대감소충격압강유현저효과;종역학관점출발,구조료대수점당저판상상대최대충격압강적표체식,기중포괄사개삼수,타괄용우등관도감화확산감,용28개공정실측수거진행료의합,실측치화계산치적상대오차재가접수범위내。
The experimental tests are made for the effect of pier tail optimization on the decrement of maximum pressure acting on the cushion pool floor when arch dam overflowing.The results show that this method is very effective.From the point of physical view,the empirical formula for the maximum pressure on the cushion pool floor is devised,which includes four parameters and is suitable for the calculation of the equal width bucket and diffusion bucket.By fitting with the measured data from 28 projects,it is showed that the relative error between the measured value and calculated value is in the allowed range.
