噪声与振动控制2017，Vol.37Issue(4)：121-125,5.DOI:10.3969/j.issn.1006-1355.2017.04.024
强夯加固地基土振动传播特性及隔振孔隔振分析
Analysis of Vibration Propagation Characteristics and Effect of Vibration Isolation Holes in Soil Foundation Reinforced by Dynamic Consolidation
摘要
Abstract
With the wide application of dynamic consolidation method, the problem of environmental vibration induced by this method gets more and more attention. By comparing with the actual engineering construction, the validity of theoretical analysis and numerical simulation is confirmed. Through changing the parameters of the dynamic consolidation one by one, the influences of tamper diameter and tamping energy combination on the environment vibration are simulated and analyzed. In the same way, the influence of three parameters of vibration isolation holes in discontinuous barriers, such as diameter, spacing and depth of the hole, on the vibration isolation effect of the barriers is analyzed. The results demonstrate that the larger tamper diameter with the same weight and light tamper with higher drop distance are beneficial for reducing the environmental vibration. When the depth of the isolation holes reaches a certain value, increase of the diameter-to-spacing ratio of the holes can raise the isolation effect of the barriers. This research has a guiding significance for the construction of dynamic consolidation and environment vibration control.关键词
振动与波/强夯/振动传播/夯锤/隔振孔Key words
vibration and wave/dynamic consolidation/vibration propagation/tamper/vibration isolation hole分类
建筑与水利引用本文复制引用
丁文湘,丁海滨,徐长节,杨园野..强夯加固地基土振动传播特性及隔振孔隔振分析[J].噪声与振动控制,2017,37(4):121-125,5.基金项目
青年科学基金资助项目(51508192) （51508192）
江西省岩土工程基础设施安全与控制重点实验室开放基金资助项目(20161BCD40010) （20161BCD40010）
国家自然科学基金资助项目(51338009) （51338009）
