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- With extensive application of blast techniques, more and more attentions are focused on the influence of blast vibration. 随着爆破技术的广泛应用，人们越来越关注爆破震动，爆破震动危害己成为国民经济建设中一个重要的环保问题。
- The dominant blast vibration frequency affects the evaluation of slope stability under the condition of blast vibration via its being close to the natural frequency of slope. 爆破振动主频就是通过对边坡自振频率的接近程度来影响其对边坡的稳定性评价,故求得边坡自振频率具有十分重要的意义。
- The results show that the dominant frequency componems of single deck blast vibration signals are concentrated at the higher frequency band(39 Hz-156Hz)and the ratio of the energy of low frequency components(less than 39 Hz) to the total energy is lower. 结果表明,在单段爆破中,爆破震动信号成分主要以中高频(39Hz~156Hz)为主,低频成分(39Hz以下)所占比例极少。
- Secondly, three single deck blast vibration signals were analyzed by wavelet packet based on software MATLAB and the change of energy distribution curve at different frequency bands was obtained. 其次，基于MATLAB时爆破振动信号进行小波包分析，得到了爆破振动信号在不同频带上的能量分布图。
- Blast Vibration Monitoring and Shock-proof Measures 爆破震动监测与防震
- The study of blast vibration effect and safety 地震效应及安全研究
- With the progress of the mining operation in Lanjian Iron Ore year on year the effect of blasting vibration on safety of adit is increasing. 随着兰尖铁矿采场水平逐年下降,爆破震动对平硐的安全影响日益突出。
- The calculation results and open-pit slope stability under blasting vibration influence are analyzed and appraised. 以计算结果为参照来分析、评价爆破震动对边坡稳定性的影响。
- We also studied the influence of blasting vibration on the people and studied the laws o... 并针对爆破震动对人的影响,以及爆破震动频率的衰减规律进行探讨。
- So the study of the influence of blasting vibration on underground chambers is of great importantance both in theory and practice. 因此,研究爆破振动对地下洞室的影响,不仅具有重要的理论意义,同时也具有重要的工程意义。
- To determine rational microsecond delay time is both the requirement of ensuring blasting quality and the key to achieve blasting vibration reduction. 确定合理的微差间隔时间,既是保证爆破质量的需要,又是达到爆破降震的关键。
- The accordion was in full blast in the hall. 在大厅里手风琴拉得非常响亮。
- With the coefficient the paper discussed the safety assessment of the regression formula for predicting the blasting vibration. 用安全系数对回归公式预报爆破震动强度的安全性进行评估。
- Through blasting vibration testing in Heidaigou open coal mine,vibration characteristics and frequency chart in high step sling blasting are analysed. 通过对黑岱沟露天煤矿爆破的振动测试,对高台阶抛掷爆破的振动特点进行了分析。
- YANHG Tong-gui.Characteristic and fourier analysis of the blasting vibration in hypaethral mine[J].Blast, 1984,1(2) :48-53. [8]杨桐桂.;露天矿爆破地震动特征及Fourier谱分析[J]
- This paper introduces the blasting vibration test system of groundwork excavation project of sunshine new town in Nanning city. 对南宁市阳光新城地基开挖工程的爆破震动测试系统进行了介绍。
- The party was going on in full blast. 聚会进行得热闹非凡。
- Based on actual engineering project, this paper uses the FDM software-FLAC to simulate the effects of blasting vibration on slope stability. 结合实际工程文章利用了拉格朗日有限差分法FLAC程序对爆破震动作用下某边坡进行了数值模拟。
- And slope displacement,acceleration and stability coefficient under influence of blasting vibration are analyzed and calculated. 计算并分析爆破震动对边坡位移、加速度和稳定性系数的影响。
- My brother plays his records full blast in his bedroom every night. 我弟弟每天晚上在他的卧室里大声放录音机。
