水利水电技术（中英文）

影响消力池深度S和长度L的主要因素有堰上水头H1；、单宽流量q和下游水深t等．由于消力池在不同运行情况下，H1、q、t是变化的，因此在实际设计中，要对不同运行情况计算出相应的S值，从中确定最大值作为设计池深．目前最大池深计算大都采用试算或图解法，计算工作量大而复杂．用数学分析方法确定消力池最不利设计条件，即求最大池深Smax相应的q、H1、t，可按建筑物泄流方式选定若干变量为常数，并将约束方程直接代入S=f（q、H1、t）中，使问题简化为求或。上述数学分析方法在实际工程设计中是十分有用的．

The main factors which influence the depth and length of stilling basin are water head(H1) over weir, unit discharge (q) and downstream water depth (t). For H1、q,t are variable in dif-ferent operation conditions of stilling basin, corresponding stilling basin depths (s) must be calculatedin actual design process, with the maximum s(Smax) as the design depth of the basin. Now trail orgraphic solution method is often adopted to get Smax, but the compution is of trouble and hard work.So a mathematical analysis method was suggested to determine the most unfavourable design conditionof stilling basin, that is to solve the H1,q,t corresponding to Smax Some computed variations can beselected as constant according to the sluicing form of the structure, with the restraint equation directlysubstituted in to S=f(q1,H1,t). So that the problem will be simplified to solve This mathematical analysis method is most useful in the actual engineering design.