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一、概论永工建筑物建筑在岩石地基上,首先要考虑到建筑物在不同荷载影响下,及特殊的动荷载下,是否是处于平衡与稳定状态,因此,在设计坝体的同时,必须确定坝体与岩石间之稳定参数(混凝土-岩石间之抗剪强度,tg , 值),做为设计之依据。混凝土与基岩间之抗剪强度,与混凝土的标号,基础部分的工程地质及水文地质的特征,有着密切的关系,如基岩的风化程度,节理的方向,地下水的扬压力,地下水对结合缝的侵蚀,以及基础部分的开挖程度等等,都影响着抗剪强度的数值,所以在坝区
I. Introduction The construction of a permanent industrial building on a rock foundation should first consider whether the building is in a state of balance and stability under the influence of different loads and under special dynamic loads. Therefore, while designing the dam body, Determine the stability parameters (concrete-rock shear strength, tg, value) between the dam and the rock, as the basis for the design. The shear strength between concrete and bedrock is closely related to the number of concrete, the engineering geology of the foundation part, and the characteristics of hydrogeology, such as the degree of weathering of bedrock, the direction of joints, the lifting pressure of groundwater, and the combination of groundwater. Erosion of the seam, and the excavation of the foundation part, etc., all affect the value of the shear strength, so in the dam area