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为确定合理的加固补强方案,应用有限差分程序FLAC对堂加2号土质古窑的稳定性进行评价。通过选择典型断面形状,将复杂的三维问题简化成为3种类型断面的平面问题。在合理选用土质模型参数的基础上,用强度折减法模拟分析了6种情形下可能的破坏模式和相应的安全系数,得出了最薄弱断面形状及相应的破坏模式。该模拟分析结果在现场施工时意外地得到了验证,为加固补强方案的确定提供了可靠依据。
In order to determine a reasonable reinforcement and reinforcement scheme, the finite difference program FLAC was used to evaluate the stability of Tonga No.2 clay kiln. By selecting the typical cross-sectional shape, the complex three-dimensional problem is reduced to the planar problem of the three types of cross-sections. Based on the rational selection of soil model parameters, the possible failure modes and corresponding safety factors in six kinds of situations are simulated and analyzed by the strength reduction method, and the weakest cross-sectional shape and corresponding failure modes are obtained. The results of this simulation analysis have been unexpectedly verified during on-site construction, providing a reliable basis for determining the reinforcement and reinforcement plan.