爆破振动;损伤;功率谱;边坡;数值模拟。
Blasting Vibration; Injury; Power Spectrum; Slope; Numberical simulation.
研究结果为爆破振动危害控制提供了参考依据。
The research results propose a reference for controlling the blasting vibration damage.
研究内容是爆破振动在不同介质中的传播差异性。
Difference of blasting vibration in different mediums was researched.
立井爆破振动的径向振动速度较垂向振动速度大;
Radial vibration velocity was larger than that of vertical. Vertical shaft blasting vibration was much affected by shock wave.
浅埋隧道掘进爆破振动特征有别于其他类型的爆破。
The blasting earthquake wave of shallow tunnel differentiates that from other kind of blasting.
爆破夹制作用越大,邻近隧道产生的爆破振动越大;
The more the blasting clamping force is, the more blasting vibration is produced to the adjacent tunnel.
证明支持向量机理论能较好地预测爆破振动合速度。
It is confirmed that the support vector machine theory can predict the velocity of blasting vibration well.
介绍了龙滩水电工程右岸高边坡开挖中的爆破振动观测成果。
Blasting vibration observation result of the right bank's high slope of Longtan Hydropower Project is introduced.
爆破振动分析是研究爆破振动危害控制技术的基础和前提之一。
Blasting vibration analysis is one of the important foundations for studying the control technology of blasting vibration damage.
结果表明,数值法能较全面地反映爆破振动全过程的变化规律。
The results show that finite element method can fully describe the whole process of blast vibration.
巷壁岩石一般没有遭受过强烈爆破振动,所以比较完整和连续。
Since there are no intense explosions in the excavating process, the rock wall of the tunnel, in general, keeps intact.
提出了一种由实测爆破振动速度数据得到加速度历程曲线的方法。
A method to obtain the acceleration curve from measured blasting vibration velocity data is proposed in this paper.
爆破振动的破坏作用不仅与振动强度有关,而且与频率特性有关。
The fracturing action of blasting vibration is not only related by vibration intensity, but also frequency specific property.
爆破振动衰减较快,而后座和塌落振动因其低频特性衰减相对较慢。
We also found that attenuation of backlash and collapse vibration wave are more rapid than the backlash and blasting vibration wave for the low velocity trait of them.
本项目重点在于提出确保核电站结构及设施安全的爆破振动强度的阈值。
The emphasis of this project is to present threshold value of blasting vibration strength to ensure structure and apparatus of nuclear power station safe.
研究了爆破振动能量多主频分布规律,进一步指出了地震波的传播特征。
The multi-mater-frequency characteristic of blasting seismic energy and the transmission characteristic of blasting seismic wave are studied.
研究隧道掌子面后方隧道拱顶、掌子面正上方和侧面围岩的爆破振动规律。
The blasting vibration rules of arch crown and upper and side surrounding rocks behind tunnel face are studied.
在爆破振动作用下,地面质点的振动频率对建筑物的破坏具有很大的影响。
Under blasting vibration effect, the vibration frequency of ground particle has a great influence upon building damage.
此外,文中提出了一个适用于多排孔延时爆破振动速度预测模型的依据公式。
Besides, a basis formula of vibration velocity prediction model that is suitable for multi-row millisecond blasting was proposed.
爆破振动对边坡的影响基本上可以由爆破技术(方式)和爆破规模加以控制。
Its effect on slope stability can be controlled by blasting technique and scale.
爆破振动分析是研究爆破振动危害控制的基础,也是控制爆破振动危害的前提。
Blast vibration analysis is a foundation for studying control of blast vibration damage and provides a prerequisite to controlling blast vibration.
采用数值模拟方法,对新浇混凝土灌注桩在爆破振动作用下的动态响应进行了分析。
The dynamic response of fresh concrete filling pile under blasting load is studied by numerical simulation in this paper.
爆破振动安全标准如果不考虑振动频率的影响,则难以准确地衡量爆破振动的危害。
It is difficult to measure the danger of the blasting vibration if the effect of frequency is not taken into consideration in the safety criterion of blasting vibration.
爆破振动速度在竖直向有放大效应,对于距爆源等距离的竖直向的爆破振速大于水平向。
Blast vibration velocity has magnify effect in the vertical direction, the vibration value of vertical direction is bigger than horizontal direction at the same distance to blast place.
尽最大可能减少靠帮爆破对边坡的直接破坏与扰动,远比减小爆破振动的影响更为重要。
It is by far more important to reduce as much as possible the direct destruction and disturbance to slope by near slope blasting than to reduce its vibration effect.
结合大量工程爆破地震监测资料,对不同爆炸参量下产生的爆破振动信号进行反应谱分析。
According to the monitoring data obtained from engineering blast the blast vibration signals with different explosion parameters are analyzed by response spectrum.
应用这些信号可以给出不同频率带上爆破振动的相对能量分布和振动强度的时间变化规律。
By using these signals, the relative energy distributions of blasting vibration in different frequency bands and the regularity of vibration strength varying with time can be obtained.
对某水电站地下洞室爆破振动进行观测、分析和处理,得到了爆破地震波传播衰减经验公式。
The blasting vibration of an underground chamber is observed, analyzed and interpreted. The experience formula of decay for the blasting earthquake wave is obtained.
对某水电站地下洞室爆破振动进行观测、分析和处理,得到了爆破地震波传播衰减经验公式。
The blasting vibration of an underground chamber is observed, analyzed and interpreted. The experience formula of decay for the blasting earthquake wave is obtained.
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