欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
地铁车站内部爆炸及产生的爆炸冲击波将在结构周围的土体中产生巨大的应力波，并向外传播，进而引起地铁车站周边地面的强烈震动，对地面建筑结构造成危害。该文以天津某典型地铁车站为例，对车站内发生意外爆炸后，应力波在周围土体内的传播过程，引起的周边地面震动的特性及其衰减规律进行了数值分析；同时针对国内典型地铁车站，研究了车站埋深、炸药量等参数对地铁车站周边地面震动的影响规律，进而提出了考虑车站埋深和比例距离变化的地铁车站周边地面典型位置的地面震动主要参数的计算公式。该文的研究成果可用于评估恐怖爆炸情况下地铁车站周边建筑的抗震安全性，也可为地铁车站抗爆设计中车站埋深的选取提供理论依据。
英文摘要：
Once an internal explosion happened in a subway station, strong stress wave will occur in the surrounding soil, which will spread to the surface causing strong vibration of the buildings. In this paper, a case study of typical subway station in Tianjin is carried out to analyze the responses of surrounding soil induced by an internal explosion, including the propagation of shock wave in the soil, characteristics of ground vibration and its attenuation law. For a typical subway station in China, parametric studies are carried out to investigate the influences of explosive weight and structure buried depth on ground vibration surrounding the subway station. Further, a series of formulas concerning scaled distance and structure buried depth are derived to calculate the main parameters of ground vibration at typical positions surrounding the subway station. The results of the research can be used both to estimate the vibration safety of buildings surrounding the subway station under terrorist bombing attack, and to provide theoretical basis for the determination of structure buried depth in blast-resistant design of subway stations.
同期刊论文项目
同项目期刊论文
Rate-sensitive Numerical Analysis of Dynamic Responses of Arched Blast Doors Subjected to Blast Load
Experimental and theoretical investigations on zonal disintegration phenomenon in the enclosing rock
Theoretical Investigations on Zonal Disintegration Phenomenon in the Enclosing Rock Mass around Deep
Prediction of fragment size and ejection distance of masonry wall under blast load using homogenized
Numerical derivation of pressure-impulse diagrams for prediction of RC column damage to blast loads.
Simplified Analysis for Reflective Overpressure on Walls of Rectangular-Section Tunnel due to Its In
位置：