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本文依托软弱夹层及破碎带工程实例,结合岩基深层载荷试验,采用应力扩散角法,分析评价持力层范围内软弱夹层及破碎带对超高层建筑的承载力、变形及稳定性影响,结果表明软弱夹层及破碎带的承载力,基础的沉降及倾斜满足要求,并通过Midas三维数值模拟验证理论计算结果,为超高层建筑物地基下一步处理提供依据。
In this paper, based on the engineering examples of weak interlayer and broken belt, combined with the subsoil load test, the stress diffusion angle method is adopted to analyze and evaluate the influence of weak interlayer and broken zone in bearing layer on the bearing capacity, deformation and stability of super high-rise buildings. The results show that the bearing capacity of subsoil and broken zone, the settlement and inclination of foundations meet the requirements. The results of theoretical calculation are validated by three-dimensional numerical simulation of Midas, which provides the basis for the further processing of super tall buildings.