CAJ | 학술논문

从工程实际出发，对刘吉福和周亦涛土拱效应算法中土压力系数取值进行了改进，进而得到了桩土应力比的改进算法。改进后的刘吉福算法和周亦涛算法得到的桩土应力比均随土压力组合系数增加而减小，随桩间距增加而减小，随桩土差异沉降增加而增加；改进后的周亦涛算法更加接近实测值，且是偏于安全。因此本文的研究为桩承式路堤设计提供了一种有益的参考。
종공정실제출발，대류길복화주역도토공효응산법중토압력계수취치진행료개진，진이득도료장토응력비적개진산법。개진후적류길복산법화주역도산법득도적장토응력비균수토압력조합계수증가이감소，수장간거증가이감소，수장토차이침강증가이증가；개진후적주역도산법경가접근실측치，차시편우안전。인차본문적연구위장승식로제설계제공료일충유익적삼고。
Considering practical engineering, it improved the coefficient of earth pressure of Liujifu's and Zhouyitao's calculating method of soil arching effect arching effect, and the formula of pile-soil stress ratio is deduced. Improved pile-soil stress ratio coefficient will decrease with the increase of the improved coefficient of earth pressure and the pile space will increase with the increase of differential settlement between piles and soil. The theoretical value by improved Zhouyitao's formula of pile-soil stress ratio is extraordinary close to observation of practical engineering, and is inclined to safe. So the research result put forward an useful reference to design of pile-supported embankments.