本文選題：爆炸力學(xué) + 延時(shí)控制��； 參考：《爆炸與沖擊》2016年06期

【摘要】：為了通過(guò)振動(dòng)波傳播規(guī)律研究微差爆破延時(shí)控制,改善爆破振動(dòng)和提高爆炸能利用,選取普通雷管和澳瑞凱高精度雷管進(jìn)行不同段別延期起爆對(duì)比實(shí)驗(yàn),試爆過(guò)程對(duì)振動(dòng)波測(cè)振�；谡駝�(dòng)波函數(shù)優(yōu)化理論基礎(chǔ),對(duì)實(shí)測(cè)數(shù)據(jù)和波狀譜處理分析,總結(jié)了不同微差時(shí)間下振動(dòng)波傳播規(guī)律及速度峰值、主頻、頻帶能量、總能量等變化特征,根據(jù)該特征發(fā)現(xiàn)振動(dòng)波速度圖譜和該速度積分所得位移圖譜中兩者最大值對(duì)應(yīng)時(shí)間點(diǎn)相同。依據(jù)此速度峰值-振動(dòng)位移分布特征,對(duì)某實(shí)測(cè)簡(jiǎn)單振動(dòng)波進(jìn)行高斯多峰擬合,結(jié)果表明:該波段能量最大化時(shí)間點(diǎn)為60ms左右,振動(dòng)最小的時(shí)間點(diǎn)為25ms左右。
[Abstract]:In order to study the delay control of millisecond blasting through the propagation of vibration wave, to improve the blasting vibration and increase the exploding energy, the conventional detonator and the high precision detonator were selected to carry out different delay initiation experiments. Vibration measurement by vibration wave during blasting test. Based on the theory of vibration wave function optimization, the characteristics of vibration wave propagation law, peak velocity, main frequency, frequency band energy and total energy under different differential time are summarized by analyzing the measured data and wave spectrum processing. According to this characteristic, it is found that the corresponding time points of the two maximum values in the vibration wave velocity map and the displacement map obtained by the velocity integration are the same. According to the characteristics of the velocity peak-vibration displacement distribution, a simple vibration wave is fitted by Gao Si. The results show that the time point of energy maximization in this band is about 60ms, and the minimum vibration time point is about 25ms.
【作者單位】： 福州大學(xué)紫金礦業(yè)學(xué)院;福州大學(xué)爆炸技術(shù)研究所;福州大學(xué)環(huán)境與資源學(xué)院;華中科技大學(xué)土木工程與力學(xué)學(xué)院;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(41072232) 福建省自然科學(xué)基金項(xiàng)目(2011J01310)
【分類(lèi)號(hào)】：O38

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