【作者】 李凯玲；

【导师】 门玉明；

【作者基本信息】 长安大学 ， 地质工程， 2004， 硕士

【摘要】 锚杆(索)抗滑桩已发展成为边坡加固的一种重要的手段。但由于桩体系与滑坡体之间的相互作用的复杂性,目前锚杆(索)抗滑桩的计算方法还不尽完善。本文利用土与结构的相互作用理论,对抗滑桩—锚杆(索)—岩土体的相互作用进行了研究,提出了锚杆(索)抗滑桩计算分析的一种新方法,得出了一些有意义的结论。 本文首先分析了锚杆(索)抗滑桩的研究现状,结合锚杆(索)抗滑桩的受力特点和适用范围,指出在现阶段工程设计中存在的主要问题,并提出改进的计算方法,即:分别考虑锚杆(索)以及抗滑桩在与岩土体相互作用时的内力和变形,系统地分析了锚杆(索)以及抗滑桩与岩土体的相互作用机理,再通过建立锚杆(索)—抗滑桩的力学模型,在考虑锚杆(索)受力以及变形的前提条件下,建立了锚杆(索)与抗滑桩相互作用时锚杆(索)抗滑桩的内力计算理论。 通过对延安宝塔山1号滑坡治理方案锚杆(索)抗滑桩的研究,并将计算结果与其它计算方法进行对比,验证了本方法在计算锚杆(索)抗滑桩变形及内力时的优越性;同时也证明了将土与结构的相互作用理论应用于锚杆(索)抗滑桩的研究是完全可行的。更多还原

【Abstract】 Anchor anti-slide piles was been a significant measure. However, due to the complexity of interaction for between pile system and landslide, its computational methods are not very perfect, presently. Through studying the interaction among anti-slide pile, pre-stressed anchor and earth, a new kind of method is put forward, which analyses the interaction by the theory of anchor-soil interaction, and educes some significant conclusions in this paper.The article analyses the present research of anchor anti-slide piles, considering the flavor undergoing force and the apposite ranger, and pointing out the main problems in anchor anti-slide piles project at present. As a result, a new conclusion method is used: firstly, we consider the internal force and deformation of anti-slide pile when deliberating the structure-soil interaction, so as pre-stressed anchor too. Secondly, a new method to calculate internal force on anchor anti-slide piles is put forward by making mechanical model of anchor anti-slide piles, which considering the internal force and deformation of re-stressed anchor.At last, through studying and calculating the anchor anti-slide piles of the controlling scheme of the No.1 landslide in the Yan’an pagoda-mountain, and comparing with the Partial coefficient method, the superiority of this new method is verified when calculating the anchor anti-slide piles. At the same time, it also proved that it is feasible to apply the theory of the structure-soil interaction to management and design of landslide hazard.更多还原