基于随机有限元法的溶蚀坝基系统建坝适应性评价

依托溶蚀地基上建坝的典型工程问题，在研究坝基溶蚀空间展布特征的基础上，建立溶蚀带力学参数随机场模型，采用随机有限元方法研究坝体工作性态的统计特性，评价了溶蚀坝基建坝适应性。采用溶蚀带力学参数随机场模型，等效模拟了空间内溶蚀体的无序分布系统，排除地质统计中线溶蚀率的人为假定，避免了以往确定性分析模型中溶蚀体缺失现象。研究方法和成果亦可以为其他相似复杂地基工程的数值分析提供新的思路和参考。

Evaluating adaptability to build dams on dissolution foundation system based on stochastic finite element method

Taking typical engineering problems of dam construction on dissolution foundation for example,the dissolution belt random field model is established based on researching characteristics of the spatial distribution of dissolution rocks.Then,the adaptability is evaluated to build dams on the foundation and the statistical properties of the dam are studied through stochastic finite element method(SFEM).The model simulates the disorderly distribution of rock dissolution,eliminates artificial assumption of the line corrosion rate,and avoids the shortage of rock dissolutions in the deterministic model.The method and conclusion also provide a useful reference to the numerical analysis under the complex geological conditions.