CAJ | 학술논문

抗滑桩变形过程中产生的竖向摩阻力可以形成反力矩，有助于抵抗滑坡推力，现对竖向摩阻力对抗滑桩嵌固段内力及变形的影响进行研究。在弹性地基系数法K法和小变形假设的基础上，假定竖向摩阻力与桩岩相对位移成正比，建立考虑竖向摩阻力的抗滑桩受力模型及其挠曲变形微分方程，并推导其求解过程。通过马家沟Ⅰ号滑坡抗滑桩实例计算，分析了竖向摩阻力对抗滑桩内力及变形计算的影响。竖向摩阻力形成的反力矩能减小抗滑桩的变形及内力，对抗滑桩剪力的影响最大，水平位移次之，对弯矩影响最小。考虑竖向摩阻力的抗滑桩计算模型能改善目前抗滑桩设计中剪力计算过大的问题，使抗滑桩设计更为合理。
항활장변형과정중산생적수향마조력가이형성반력구，유조우저항활파추력，현대수향마조력대항활장감고단내력급변형적영향진행연구。재탄성지기계수법K법화소변형가설적기출상，가정수향마조력여장암상대위이성정비，건립고필수향마조력적항활장수력모형급기뇨곡변형미분방정，병추도기구해과정。통과마가구Ⅰ호활파항활장실례계산，분석료수향마조력대항활장내력급변형계산적영향。수향마조력형성적반력구능감소항활장적변형급내력，대항활장전력적영향최대，수평위이차지，대만구영향최소。고필수향마조력적항활장계산모형능개선목전항활장설계중전력계산과대적문제，사항활장설계경위합리。
The vertical frictional resistance generated during the deformation of anti-slide pile can form anti-moment or push-pull resistance, which can contribute to landslide prevention. The impact of the vertical frictional resistance on the internal forces and deformation of anti-slide pile socketed section is studied. On the base of elastic foundation coefficient method“K method”and small deformation assumption, the vertical frictional resistance is considered proportional to the relative displacement of pile and rock mass, then the mechanical model and the bending deformation differential equations of anti-slide pile are established. And the corresponding solution process is derived. The effects of the vertical frictional resistance on anti-slide pile are analyzed by the calculation of anti-slide pile in Majiagou landslide #1. It is found that the counter torque formed by vertical frictional resistance can reduce the pile deformation and internal forces, the shear force is affected by the counter torque mostly, followed by the deformation, and little influence is brought to the bending moment. The anti-slide pile model which has taken the vertical frictional resistance into account can improve the problem of excessive shear force when using the current method, and make the design more reasonable.