双排护坡桩试验与计算的研究

A Study on the Test and Calculation of Double-Row Fender Piles

本文通过室内模型试验和北京某工程实测，分析研究了双排护坡桩的内力、变形及上压力分布特性，并在此基础上提出了一种简化的双排护坡桩计算方法，以便于工程实用，该计算方法的计算结果与试验值是基本吻合的。本文试验分析得出，在同样桩数条件下，按双排布置的护坡桩比单排桩水平位移明显减小，桩的内力也减小，且内力分布更为合理。在工程周边场地条件适合的情况下，双排护坡桩具有应用价值。

The properties of internal force,displacement and distribution of earth pressure on double-row fender piles were analyzed in this paper through the model and real project tests.From which a convenient method for calculating of the double-row fender piles was developed for practical use.The calculating results obtained by this method have been found to be coincident with those of the tests.The tests showed that the displacements and the stresses of the piles in double rows were less than those in one row with the same number of piles. In certain cases when the boundary condition is suitable,double-row fender pile structures are valuable in being used for excavation engineering.