多排隔振井减隔振效果模型试验研究

The Research on the Model Test of the Vibration Isolation Effect about Vibration isolation well

以研究隔振井的减隔振效果为目的.通过模型试验的方式,在试验箱中设置隔振井作为减隔振措施,将隔振井排数、深度和排布形式三因素考虑在内.结果表明:隔振井减隔振效果明显,隔振井可使土体加速度加速度衰减23.4%~67.0%;隔振井排数改变对减隔振效果影响明显,随着排数增加加速度衰减率范围为23.4%~65.9%;隔振井深度对减隔振效果影响显著,随着深度增加加速度衰减率范围为28.6%~67.0%;排布形式的改变对减隔振效果有影响,不同排布形式下加速度衰减率范围为40.6%~60.6%.

The purpose of this paper is to study the vibration isolation effect of vibration isolation wells.Through the model test,vibration isolation wells were set as measures in the case,taking the number of wells' rows,the depth of well and the arrangement form of well into account.The results indicate that the effect of reducing vibration isolation was remarkable,the acceleration attenuation rate behind well was 23.4%~67.0% reduction by setting the vibration isolation well.The increasing of well row,depth and arrangement formcan have a significant influence on the effect of increasing vibration isolation respectively,acceleration attenuation under the condition of different rows,depth and arrangement form were in the range of 23.4% and 65.9%,28.6% and67.0%,and 40.6% and 60.6%respectively.