通过总结分析现有规范中各种边界条件下抗滑桩的内力计算方法,提出了一种改进的抗滑桩内力简化计算方法。分别从刚性桩和弹性桩的判别、滑坡推力和土体抗力分布函数表达式、刚性桩的计算方法,弹性桩在k法和m法下的内力及位移的表达式等方面进行了阐述。通过与抗滑桩模型试验实测数据比对,验证了该计算方法的有效性和准确性。该方法能够较客观地反映抗滑桩的实际受力状态,有助于抗滑桩工程的设计与优化。
A new simplified calculating method for internal force of anti- slide pile under various boundary conditions is proposed based on analyzing traditional calculating methods under different boundaries in the current standard. The new method is illustrated from the aspects of judging approach to the rigid pile and elastic pile,the distribution function expression of landslide thrust and soil resistance,calculating method of rigid pile,the internal force and displacement expression of elastic pile in k and m methods. The accuracy and correctness of the presented method was verified by comparing the data with physical model test. It shows that the new method can basically reflect the real force state of anti- slide pile and is helpful to the design and optimization of anti- slide piles.