桩身长度对双排桩隔振影响分析

Influence of pile length parameters on vibration isolation of double row piles

为研究桩身长度对双排混凝土桩隔振作用的影响,实验使用控制变量法,在不同桩身长度下,通过室内场地模拟,得出了以下结论:双排混凝土桩能够有效地隔离振动波,其隔振性能受桩身长度影响较大。在桩前区域,桩长对于其振动影响较小;在桩后区域,隔振效果会随着桩身长度的增加而增加,但在桩长增加相同长度下,其隔振增幅不会随着桩长的提升而大幅提高,在本实验条件下,隔振增幅会随着桩长增加而减少。

For the study of pile length of double row concrete pile vibration isolation effect,this experiment by using the method of control variables under the indoor and field simulation,the pile length as a variable,the following conclusions are drawn:the double line of concrete pile can effectively isolate vibration wave,vibration isolation performance is affected by the length of pile,the area in front of the pile,the pile length for small vibration;In the area behind the pile,the effect of vibration isolation increases with the increase of pile length,but when the pile length increases the same length,the increase of vibration isolation does not further increase with the increase of pile length.In the scope of this experiment,the increase of vibration isolation decreases with the increase of pile length.