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本文应用非线性规划理论,研究了混凝土坝浇筑块基础温差的合理选择问题。文中按相对造价最低为原则,以混凝土标号X_1、加冰降温值X_2、予冷骨料降温值X_3、一期水管冷却降温值X_4、分块数目X_5和分层厚度X_6等六个因素为设计变量。由于某些变量的整型要求和其不连续性,问题的求解采用了网格法和复形法,并用FORTRAN-Ⅳ语言编制了计算机程序,给出了工程计算实例,可广泛应用于设计和施工中。
In this paper, the nonlinear programming theory is applied to study the reasonable choice of the temperature difference of concrete dam foundation. According to the principle of relative minimum cost, six factors including concrete grade X_1, ice cooling value X_2, pre-cooling aggregate cooling value X_3, cooling water cooling value X_4, number of sub-blocks X_5 and layered thickness X_6 are used as design variables . Due to the integer requirements and discontinuities of some variables, the solution to the problem is to use the grid method and the complex method, and the computer program is compiled by FORTRAN-Ⅳ language. The engineering calculation example is given, which can be widely used in the design and Construction.