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本文介绍龙羊峡工程的石膏材料弹性结构整体模型试验成果.并着重分析了有复杂地质构造的坝基与坝,副厂房及厂坝,厂岸连结的相互影响.其中坝后无厂房情况的成果还与多拱梁分载法的电算成果作了对比分析.龙羊峡水电站是黄河干流上的第一级(龙头)水利枢纽.坝型为混凝土重力拱坝.最大坝高175米.两岸分别用高30米、20米的混凝土重力墩相接.水电站厂房位于坝后.坝址地质复杂,断层和构造纵横交错,缓倾角裂隙发育,两岸沿高程岩体弹模多变.在地质条件如此复杂的坝址建造高坝大库,对坝体的应力、变位和坝肩稳定问题的研究,显得更为重要.深入地进行脆性材料结构模型试验研究,是解决这种难度较大问题的有效手段之一.本文介绍模拟原型处在天然地基情况下的弹性模型的试验成果.其中无坝后厂房的试验成果与拱梁分载法的电算成果作了对比分析.
This paper introduces the overall model test results of the gypsum material elastic structure of Longyangxia Project and focuses on the interaction between the dam foundation, the dam, the auxiliary plant, the factory dam and the plant-shore connection with complex geological structures. But also with the multi-arch beam divider calculation results made a comparative analysis.Longyangxia Hydropower Station is the first of the Yellow River mainstream (tap) water conservancy hub.Cause dam gravity concrete arch dam.The maximum height of 175 meters. Respectively, with 30 meters high, 20 meters of concrete gravity piers docking. Hydropower plant located in the dam. Dam site complex geological faults and structures criss-cross, the development of gentle dip cracks, rocks along the two sides along the elevation of elastic modulus change in the geological conditions It is more important to study the dam’s stress, displacement and abutment stability when such a complex dam site is used to build a large dam.The study on the brittle material structure model in-depth is a very difficult problem to solve Which is one of effective methods.This paper introduces the experimental results of the elastic model in the case of natural foundations simulated by the prototype.The contrastive analysis between the test results without the dam after the plant and the calculation results of the arch beam splitting method is made.