Peak particle velocity (PPV) is the most basic and direct parameter of vibration event to connect with stress increment, so they are studied in this paper through statistics and analysis. The vibration events in underground coal mine can be divided into whole mine (WM) event, working face (...
5)Peak Particle Velocity(PPV)质点振速峰值 6)peak particle velocity质点峰值震动速度 延伸阅读 质点振动系统 不论其中的物体(如质量块、弹簧等)几何尺寸而看成是一个物理性质集中的振动系统。这是一种理想情况。在实际情况下,某个振动系统是否能够看作质点振动系统,决定于系统的线度与振动波长的比值,比值很小时,就...
In this study, artificial intelligence was supposed to predict the intensity of blast-induced ground vibration, which is represented by the peak particle velocity (PPV). Accordingly, an artificial neural network was designed to predict PPV at the Coc Sau open pit coal mine with ...
In this paper, a novel hybrid approach is proposed for predicting peak particle velocity (PPV) due to bench blasting in open pit mines. The proposed approach is based on the combination of adaptive nedoi:10.1007/s00366-016-0438-1Ebrahim Ghasemi...
PPV Peak Particle Velocity (mining) PPV Porcine Parvovirus PPV Pago por Ver (Spanish: Pay per View) PPV Pneumococcal Polysaccharide Vaccine PPV Police Pursuit Vehicle PPV Pulse Pressure Variation PPV Public-Private Venture PPV Purchase Price Variance PPV Proportioning Valve PPV Power Point Viewer PPV ...
很多论文中提到的监测peak particle velocity (PPV),具体在history中如何查看?LS-PrePost LS-DYNA 请问各位大佬,用 hypermesh 做静力学分析时,怎么在 3D 单元的表面生成一层壳单元,生成后需要设置哪些参数(壳单元用于后续的疲劳分析)? ABAQUS计算集中力作用在轨道上时,产生的位移过大 关注问题 邀请回答 我来回答 ...
峰值质点速度 1. The maximum peak particle velocity(PPV) of rock in different localities was tested. 采用速度传感器测定多采空区下中深孔爆破强制崩矿产生的地震效应,分析同段雷管起爆的药量、空区状况及介质所处位置与主要爆破自由面的空间关系,对介质峰值质点速度(PPV)产生的影响。补充...
Design of blasting pattern in proportion to the peak particle velocity (PPV): artificial neural networks approach. Saf Sci 2012;50(9):1913-6.Amnieh HB, Siamaki A, Soltani S. Design of blasting pattern in proportion to the peak particle velocity (PPV): Artificial neural networks approach. ...
质点峰值振动速度(PPV)2) Peak Particle Velocity 质点峰值振动速度 1. It is found that the key to ensure the safety of the rock-anchored beam under blasting vibration is to prevent the cracking of the bonding interface between the beam and the vertical rock wall,and to control the horizontal...
The model was verified by comparing the computed peak particle velocities with those measured in the field. Parameters affecting the peak particle velocity (PPV), for example elastic modulus, shear strength parameters, impact force, pile diameter, etc. were considered, and variations of PPV was ...