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临界振速     
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  critical vibration speed
     The vibration of elementary units on the sliding surface of the bench are analyzed. The relationship between the slope safety coefficient and the blasting vibration influence coefficient is determined by analyzing the moving units through the limit analysis method. And further, the critical blasting vibration accelerator and the critical vibration speed are determined based on the dynamic influence of blasting on slopes.
     对台阶滑动面上单元体进行受震分析 ,利用极限分析运动单元法确定边坡安全系数与爆破震动影响系数之间的关系 ,进而根据爆破对边坡的动力影响关系来确定相应的爆破振动临界加速度及临界振速
短句来源
  critical vibration velocity
     MECHANISM OF ROCK SLOPE UNSTABILITY AND CRITICAL VIBRATION VELOCITY UNDER ACTION OF BLASTING SEISM WAVE
     爆破地震波作用下的边坡失稳机理与临界振速
短句来源
     The multi-polar coordinate,complex function and stress wave theory are employed to study the influence of buried depth on critical vibration velocity of circular cavity induced by blasting vibration,a circular cavity with large radius is used to replace the straight boundary of the half space.
     采用多极坐标和复变函数方法,利用一个半径很大的圆近似代替半空间的直边界,运用应力波理论,研究了爆破振动作用下,洞室埋深对圆形地下洞室临界振速的影响。
短句来源
  critical vibrating velocity
     This paper elaborates the unstability mechanism of rock slope under the action of blasting seism wave, and probes into the critical vibrating velocity of the slope unstability and its control methods, which have been successfully used in a lot of slope projects.
     论述了爆破地震波对岩石边坡失稳的作用机制 ,探讨了边坡失稳的临界振速及其控制策略 ,已成功地用于众多边坡工程
短句来源
  critical particle vibration velocity
     The critical particle vibration velocity is 25.3 cm/s by calculation,which can be used as the control standard of vibration in the layered rock slope blasting.
     爆破试验所得出的临界振速25.3 cm/s可以作为该顺层岩质边坡爆破开挖时的振动控制标准。
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The Tonglushan Copper Mins operated by surface and underground mining simultaneously uses the instantaneous recorders controlled by microcomputer to measure the effect of the seismic waves from open-pit blasting on underground stopes and their weakening regularities. Through the measuring and analying, the parameters such as permissible explosive amount for single-stage blasting, criticalvibration velocity, and safety distance can be gotten.

在露天、地下同时开采的铜景山铜矿,应用由微机控制的瞬态记录仪测定露天爆破地震波对地下工作面影响以及它在地下的衰减规律,通过测定分析,可以得到允许的一段爆破炸药量、临界振速以及安全距离等各项参数。

The monitoring of blasting vibration in extension project of unit No.5 of Dahonghe Powerplant in Chongqing City is introduced. Because the minimum distance between the foundation excavation blasting area and the original powerplant is less than 2m, the control of blasting vibration is of great importance. On the basis of measured vibration velocities, the safety evaluations to the monitoring objectives are given and a critical safety vibration velocity of 3 m/s for the electric apparatus of the powerplant is...

The monitoring of blasting vibration in extension project of unit No.5 of Dahonghe Powerplant in Chongqing City is introduced. Because the minimum distance between the foundation excavation blasting area and the original powerplant is less than 2m, the control of blasting vibration is of great importance. On the basis of measured vibration velocities, the safety evaluations to the monitoring objectives are given and a critical safety vibration velocity of 3 m/s for the electric apparatus of the powerplant is derived. Furthermore, the safety criteria for blasting vibration control of the similar powerplants are proposed.

介绍了重庆大洪河电站 5号机扩建工程中爆破震动监测情况。基础开挖爆破区与原厂房最小距离不足 2m ,控制爆破震动至关重要。根据实测振动速度值 ,对监测对象进行了安全评价 ,推断出电站厂房内电器设备的安全临界振速为 3cm/s,并推荐了该类电站的震动安全控制标准。

The vibration of elementary units on the sliding surface of the bench are analyzed. The relationship between the slope safety coefficient and the blasting vibration influence coefficient is determined by analyzing the moving units through the limit analysis method. And further, the critical blasting vibration accelerator and the critical vibration speed are determined based on the dynamic influence of blasting on slopes.

对台阶滑动面上单元体进行受震分析 ,利用极限分析运动单元法确定边坡安全系数与爆破震动影响系数之间的关系 ,进而根据爆破对边坡的动力影响关系来确定相应的爆破振动临界加速度及临界振速

 
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