| 地铁振动荷载作用下隧道周围饱和软黏土动力响应研究 |
| |
| 引用本文： | 张曦,唐益群,周念清,王建秀,赵书凯.地铁振动荷载作用下隧道周围饱和软黏土动力响应研究[J].土木工程学报,2007,40(2):85-88. |
| |
| 作者姓名： | 张曦 唐益群 周念清 王建秀 赵书凯 |
| |
| 作者单位： | 1. 同济大学地下建筑与工程系,上海,200092
2. 同济大学岩土工程重点实验室,上海,200092;同济大学地下建筑与工程系,上海,200092 |
| |
| 基金项目： | 国家自然科学基金;上海市重点学科建设项目 |
| |
| 摘 要： | 以上海地铁二号线静安寺站-江苏路站区间隧道周围饱和软黏土为研究对象,通过对隧道周围不同位置、不同深度土体中预埋土压力盒和孔压计,进行现场连续动态监测,对地铁振动荷载作用下饱和软黏土的响应频率、土体响应应力幅值随距离地铁隧道远近以及土体响应应力幅值随深度的变化规律进行研究,并提出了土体动力响应衰减计算公式,利用该式可以计算出地铁列车经过时的影响范围及其动力响应值的大小,可以预测与估算地铁列车振动荷载对周围建筑物的影响情况,为地铁设计、施工以及安全运营提供有价值的参考。
|
| 关 键 词： | 地铁隧道 振动荷载 饱和软黏土 动力响应 |
| 文章编号： | 1000-131X(2007)02-0085-04 |
| 修稿时间： | 2006年5月8日 |
Dynamic response of saturated soft clay around a subway tunnel under vibration load |
| |
| Zhang Xi,Tang Yiqun,Zhou Nianqing,Wang JianXiu,Zhao ShuKai.Dynamic response of saturated soft clay around a subway tunnel under vibration load[J].China Civil Engineering Journal,2007,40(2):85-88. |
| |
| Authors: | Zhang Xi Tang Yiqun Zhou Nianqing Wang JianXiu Zhao ShuKai |
| |
| Abstract: | The subject of concern is the saturated soft clay around the running tunnel between Jingan Temple Station and Jiangsu Station of the Shanghai No.2 subway line.Continuous dynamic monitoring is conducted by means of embedded soil pressure cells and pore-water pressure meters around the tunnel.The variations of frequency and amplitude of pressure with the distance from the tunnel due to subway vibration load are studied.A formula is proposed for the attenuation of the dynamic pressure response in the soil.The range of influence and the amplitude of dynamic response are calculated.The influence on the surrounding buildings by subway vibration load is predicted. |
| |
| Keywords: | subway tunnel vibration load saturated soft clay dynamic response |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
