【摘要】：為了研究混凝土中不同埋深爆炸沖擊質(zhì)點(diǎn)振動(dòng)加速度傳播規(guī)律,運(yùn)用量綱分析和自由場(chǎng)實(shí)驗(yàn)相結(jié)合的方法并引入等效當(dāng)量系數(shù)的概念得出C30混凝土不同埋深爆炸沖擊質(zhì)點(diǎn)振動(dòng)加速度預(yù)估公式。研究結(jié)果表明:對(duì)于C30混凝土,當(dāng)裝藥比例埋深為0.25 m/kg1/3≤h≤1.0 m/kg1/3時(shí),隨著裝藥比例埋深的增加,爆炸沖擊質(zhì)點(diǎn)加速度峰值隨之增大,但加速度隨比例埋深的衰減規(guī)律基本一致;對(duì)于不同強(qiáng)度的混凝土觸地爆(h=0 m/kg1/3),隨著混凝土強(qiáng)度的增大,爆炸沖擊質(zhì)點(diǎn)加速度峰值隨之增大,加速度衰減規(guī)律基本一致;給出了C30混凝土不同埋深爆炸沖擊質(zhì)點(diǎn)振動(dòng)加速度精度較高的預(yù)估公式。
[Abstract]:In order to study the propagation law of vibration acceleration of shock particles with different burying depths in concrete, By using the method of dimension analysis and free field experiment, and introducing the concept of equivalent coefficient, the formula for predicting the vibration acceleration of C30 concrete under different burying depth is obtained. The results show that for C30 concrete, when the burying depth of the charge ratio is 0.25 m/kg1/3 鈮，

本文編號(hào)：2300477