最近,我省各地、县都在大搞渠系配套工程,纷纷来信、来人收集有关各类渡槽资料。其中尤以结构型式的选定、止水材料的选用以及拱架上部中长壳槽的计算等问题居多。为及时交流情报,我们将有关技术资料摘录于后,以供同志们参考。一、关于渡槽结构型式的选择从设计角度讲,设计人员力求选用应力分布较为合理的结构。但是由于材料来源(钢材、水泥、木材、石子、砂等)、模板制作、施工工艺、地形条件(山洼、丘陵、河床)以及吊装 Recently, various localities and counties in our province have been actively engaged in supporting projects of canal systems. They have sent letters and letters to collect information on various types of aqueducts. Especially in the selection of structural type, the selection of water-stop materials and the upper part of the long shell in the upper part of the calculation of such problems. For the timely exchange of intelligence, we will extract the relevant technical information later, for comrades reference. First, on the choice of aqueduct structure From the design point of view, designers strive to use more reasonable stress distribution structure. However, due to the material sources (steel, cement, wood, gravel, sand, etc.), stencil making, construction techniques, topographical conditions (hills, hills, river beds)