| 近场和远场地震动作用下双层竖向重叠地铁隧道地震反应特性 |
| |
| 引用本文： | 陈磊,陈国兴,李丽梅.近场和远场地震动作用下双层竖向重叠地铁隧道地震反应特性[J].中国铁道科学,2010,31(1). |
| |
| 作者姓名： | 陈磊 陈国兴 李丽梅 |
| |
| 作者单位： | 1. 南京工业大学岩土工程研究所,江苏南京,210009
2. 江苏省地震工程研究院,江苏南京,210014 |
| |
| 基金项目： | 国家自然科学基金资助项目，国家公益性行业(地震)科研专项，江苏省高校自然科学重大基础研究项目 |
| |
| 摘 要： | 基于江苏省的地震环境,研究近、远场地震动作用下的双层竖向重叠地铁隧道的地震反应特性,并与单层地铁隧道的地震反应特性进行比较。结果表明:在近场地震动作用下上下层隧道之间的相互作用对隧道的相对水平位移差具有放大作用,而在远场地震动作用下双层隧道的相对水平位移差与单层隧道的基本相同;在近、远场地震动作用下,上层隧道的相对水平位移差要比下层的大得多;在近场地震动作用下存在隧道拱肩外侧的地震应力大于拱肩内侧地震应力的现象,而在远场地震动作用下地铁隧道拱肩内侧的地震应力值最大;在近场地震动作用下双层隧道下层的地震应力幅值要比上层的地震应力幅值大,在远场地震动作用下则相反;在近、远场地震动作用下双层竖向重叠地铁隧道底部的峰值加速度与浅埋或深埋单层隧道的基本相同。
|
| 关 键 词： | 地铁隧道 双层竖向重叠隧道 近场地震动 远场地震动 地震反应特性 |
Seismic Response Characteristics of the Double-Layer Vertical Overlapping Metro Tunnels under Near-Field and Far-Field Ground Motions |
| |
| CHEN Lei,CHEN Guoxing,LI Limei.Seismic Response Characteristics of the Double-Layer Vertical Overlapping Metro Tunnels under Near-Field and Far-Field Ground Motions[J].China Railway Science,2010,31(1). |
| |
| Authors: | CHEN Lei CHEN Guoxing LI Limei |
| |
| Institution: | CHEN Lei1,CHEN Guoxing1,LI Limei2(1.Institute of Geotechnical Engineering,Nanjing University of Technology,Nanjing Jiangsu 210009,China,2.Institute of Earthquake Engineering for Jiangsu Province,Nanjing Jiangsu 210014,China) |
| |
| Abstract: | According to the seismic environment of Jiangsu Province,the seismic response characteristics of the double-layer vertical overlapping metro tunnels under near-field and far-field ground motions were studied and compared with those of the single-layer metro tunnels.Results show that the interaction between the upper layer and lower layer tunnels plays a significant amplification role on the relative horizontal displacement under near-field ground motion.However, the relative horizontal displacement of the d... |
| |
| Keywords: | Metro tunnel Double-layer vertical overlapping tunnel Near-field ground motion Far-field ground motion Seismic response characteristics |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
