基于区间理论的深基坑抗隆起破坏稳定性研究

Study on the Stability of Resistant Bulged Destruction of Deep Excavations Based on Interval Theory

当前,随着基坑开挖深度越来越深,基坑发生坑底隆起破坏的事故也屡见不鲜,因此,做好深基坑坑底抗隆起破坏稳定性分析工作尤为重要。然而,基坑工程中岩土体具有高度的不确定性和复杂性,使得所获取的岩土体参数也非确定值,为此引入了区间数学理论来解决这一问题。分析结果证明,区间分析法相比于传统的确定性分析法可以更客观地反映出深基坑坑底抗隆起破坏的稳定性情况。

With more and more deep of excavation depth at present, accidents by bulged destruction occur occasionally. Therefore, it is particularly important to evaluate the stability of resistant bulged destruction of deep excavations. However, the geotechnical parameter is uncertain value because of high uncertainty and complexity of rock soil masses during the excavation engineering. The interval mathematics theory is thus introduced in this paper to solve the problems. The results show that the interval analysis method can more objectively reflect the stability of resistant bulged destruction of deep excavations compared with the traditional deterministic analysis method.