SENSITIVITY ANALYSIS OF STABILITY PARAMETERS OF h-TYPE RETAINING STRUCTURE
Author(s):
Chuanxiang Xiong, Yuanyuan Xu, Zhiquan Xing, Man Zhang, Zhiqiang Huang, Renjie Nie, Lei Zhu, Wentao Han, Wenjie Tang, David Hui, Yu Chen, Wei Chen, En Lin, Shiyuan Sun, Shuping Lin, Huojin Su, Xiaoqun Lin, Yitao Chen
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Abstract
The stability of h-type anti-slide pile, a novel slope retaining structure, has received limited research attention in terms. In this study, we conducted a comparative analysis of indoor small-scale tests and established a numerical analysis model for actual engineering scenario. By employing the finite element strength reduction method, the effects of geometric and soil parameters on the stability of h-type antislide piles and the failure mode of the slope. The sensitivity factors affecting slope stability are studied by orthogonal analysis. Findings indicate that the sensitivity factors, ranked from high to low, are the internal friction angle (φ), cohesion (c), front and rear pile row distance (B/L2), and front pile length (L3/L2). These four parameters exhibit a significant correlation with the sensitivity of the safety factor of slope stability. On this basis, the simplified formula for calculating the safety factor of slope stability is derived.
KEYWORDS:
h-Type Retaining Structure, Slope Stability, Numerical Simulation, Strength Reduction Method, Sensitivity Analysis