CAJ | 학술논문

双排抗滑桩是加固大型滑坡的常用工程措施之一，在实际工程设计计算中的关键环节在于简单且合理地确定作用于前后排桩上的滑坡推力。将抗滑桩受荷段前侧坡体视为水平向的温克勒（Winkler）地基，基于弹性地基梁模型，并充分考虑桩体受荷段与锚固段的变形连续性，通过迭代算法确定出后排抗滑桩受荷段前侧坡体抗力，进而可对排间坡体采用传递系数法计算出前排桩桩后滑坡推力，给出了相关的理论计算公式。通过室内模型试验验证了所提方法的合理性，并针对一大型基覆式滑坡实例，具体计算出了前后排桩上的设计滑坡推力荷载。所提计算方法可为实际工程的简化设计提供参考。
쌍배항활장시가고대형활파적상용공정조시지일，재실제공정설계계산중적관건배절재우간단차합리지학정작용우전후배장상적활파추력。장항활장수하단전측파체시위수평향적온극륵（Winkler）지기，기우탄성지기량모형，병충분고필장체수하단여묘고단적변형련속성，통과질대산법학정출후배항활장수하단전측파체항력，진이가대배간파체채용전체계수법계산출전배장장후활파추력，급출료상관적이론계산공식。통과실내모형시험험증료소제방법적합이성，병침대일대형기복식활파실례，구체계산출료전후배장상적설계활파추력하재。소제계산방법가위실제공정적간화설계제공삼고。
Double-row stabilizing piles are employed commonly to stabilize large-scale landslides. The key in the design and calculation of practical engineering is to simply and reasonably determine thrust on the front and rear piles. The rock or soil mass in front of loading section of a pile is considered as the Winkler foundation. Using the elastic foundation beam model and fully considering the deformation continuity between loading segment and anchorage segment of the pile, slope resistance on the loading segment of the rear pile can be determined by iterative algorithm. Then, the thrust on the loading segment of the front pile can be figured out using transfer coefficient method for potential slide mass between the front and rear piles. The relative theoretical formulas are given. To verify the rationality of the proposed method, a laboratory model test is conducted. The results are acceptable. For a large-scale landslide example, design slide thrust on a rear or front pile is figured out in detail respectively. The proposed method can provide a reference for the simplified design of practical projects.