根据隧道掘进爆破震动监测数据,分析了隧道掘进爆破的震动特征,拟合得到了泰山花岗岩中地面振动速度的变化规律。
Based on monitoring vibration data from the tunneling blasting, the characteristics of vibration from the shallow tunneling blasting are analyzed.
以镜架支撑安装基面上实测的地面振动速度功率谱密度为激励,运用ANSYS有限元分析软件的PSD分析模块,对该结构系统的随机振动响应进行了分析计算。
The PSD measured on the install base level of the mount as the excitation, the random vibration response of the mount was analyzed with the PSD module of ANSYS.
这些节点可以从地面的振动测量出车辆的速度和方向。
They were able to measure the speed and direction of vehicles from ground vibrations.
对哈尔滨市一幢16层楼房的爆破拆除过程进行了现场监测,获得了爆破和楼房倒塌过程中引起的地面质点的振动速度、频率等数据。
The demolition process of a 16th floor building in Harbin was monitored, and vibration velocity and frequency of ground particles were obtained during the blasting and collapsing process.
隧道埋深、地铁列车运行速度、荷载频率、隧道衬砌弹性模量等因素对地面振动有极大的影响。
Tunnel depth, subway train speed, loading frequency, tunnel lining elastic modulus and other factors have great impact on the ground vibration.
研究结果表明:在简谐地面加速度作用下,高频地震动也可以引起长周期结构产生很大的位移反应,且最大位移反应出现在结构的瞬态自由振动阶段。
It is concluded that the transient response to a high frequency harmonic ground motion can increase greatly the displacement response of structures, particularly for the long period structures.
利用地面和车载测试系统,对列车车体表面、车厢内部、隧道壁面空气压力变化、隧道内列车风、隧道口微气压波和隧道壁面振动加速度等参数进行测试。
Using the ground and vehicular test systems, many parameters such as pressure change, wind caused by train, micro-pressure wave and vibration acceleration of the wall of tunnel were tested.
星期五地震震中的峰值地面加速度或者振动接近距离震中110英里(172公里)的福岛第一核电站设计承受能力的2倍。
Peak ground acceleration, or shaking, caused by Friday's earthquake was nearly double—at its epicenter—than what the Fukushima Daiichi plant, 110 miles (172 km) away, was built to withstand.
现场试验包括:①测定振冲器水平振动力作用下产生的地面加速度以及制桩时引起的地面加速度与距振点距离之间的关系;
The in-situ measurement includes:( 1 ) the ground acceleration due to horizontal vibrating force caused by the vibroflot and its variation with the distance from the vibrating center;
现场试验包括:①测定振冲器水平振动力作用下产生的地面加速度以及制桩时引起的地面加速度与距振点距离之间的关系;
The in-situ measurement includes:( 1 ) the ground acceleration due to horizontal vibrating force caused by the vibroflot and its variation with the distance from the vibrating center;
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