Abstract

The importance of preserving affected buildings and infrastructures to landslides is a critical problem in some areas. A system that is less invasive than traditional concrete diaphragm walls or piles is proposed in this work. The proposed system consists of the execution of a row of micropiles and anchors with a methodology of calculation based on the Spencer's limit equilibrium method. Micropiles, as a possible measure for rapid reinforcement of a slope, are always designed in groups. Slope stability analysis automatically employs the pore pressures calculated in groundwater analysis. After a landslide is reinforced, the stability coefficient of the landslide can be increased from 0.907 to 1.504 with the application of our developed model in the application example in Málaga, southern Spain. The results of the proposed model show that a row of micropiles and anchors can effectively enhance the landslide stability in emergency cases. The results and conclusions are helpful in providing a theoretical foundation to clarify the failure mechanism and provide a reference for the design of micropiles and anchors for landslide events.

摘要

在某些地区，保护受影响的建筑物和基础设施免于滑坡的重要性是一个关键问题。在这项工作中，提出了一种比传统的混凝土隔膜墙或桩侵入性更小的系统。拟议的系统包括执行一排微型桩和锚，以及基于Spencer极限平衡法的计算方法。微型桩作为快速加固边坡的一种可能措施，总是成组设计。边坡稳定性分析会自动采用在地下水分析中计算出的孔隙压力。加固滑坡后，使用我们开发的模型在西班牙南部马拉加的应用示例中，滑坡的稳定系数可以从0.907增至1.504。模型的结果表明，在紧急情况下，一排微型桩和锚可以有效地提高滑坡的稳定性。研究结果和结论为阐明滑坡破坏机理提供了理论基础，并为滑坡事件的微桩和锚索设计提供了参考。