CAJ | 학술논문

介绍了圆弧底渠道水力最佳断面计算公式、圆弧底渠道的外切梯形渠道水力最佳断面及圆弧底渠道的实用经济断面，对比了圆弧底渠道与外切梯形渠道水力最佳断面及梯形渠道实用经济断面的有关指标。结果表明：《渠道防渗工程技术规范》规定的U形渠道断面及弧底梯形渠道断面并不是水力最佳断面，且距水力最佳断面甚远，圆弧底渠道水力最佳断面水深通过圆心，而规范规定的U形渠道水深比半径大得多，弧底梯形渠道水深比半径小很多，这样便使圆弧底渠道的优势大打折扣。圆弧底渠道水力最佳断面比梯形水力最佳断面优越，规范规定的圆弧底渠道实用经济断面偏离水力最佳断面较远。
개소료원호저거도수력최가단면계산공식、원호저거도적외절제형거도수력최가단면급원호저거도적실용경제단면，대비료원호저거도여외절제형거도수력최가단면급제형거도실용경제단면적유관지표。결과표명：《거도방삼공정기술규범》규정적U형거도단면급호저제형거도단면병불시수력최가단면，차거수력최가단면심원，원호저거도수력최가단면수심통과원심，이규범규정적U형거도수심비반경대득다，호저제형거도수심비반경소흔다，저양편사원호저거도적우세대타절구。원호저거도수력최가단면비제형수력최가단면우월，규범규정적원호저거도실용경제단면편리수력최가단면교원。
This paper described the formula of the best hydraulic section of round bottoms channels,the best hydraulic section of outer tanfential trapezoid channels of round bottoms channels and practical economic section of round bottoms channels. It compared to round bottoms channels,the best hydraulic section of the outer tanfential trapezoidal channels and economic practical section of trapezoidal channels. The results show that U-shaped channel section and trapezoidal channel section described in Technical Specification of Canal Seepafe is not optimal section,but far from optimal section. The depth of the best hydraulic section of round bottoms channels foes throufh the center of the circle. The U-shaped depth is much larfer than the radius. The trapezoidal depth is much smaller than the radius in specification. This makes the advantafes of round bottoms channels freatly discounted. The best hydraulic section of round bottoms channels is superior to the best hydraulic section of trapezoidal channels. Practical economic section of round bottoms channels far deviates from the best hydraulic section in specification.