基于概率论的爆破振动安全评估与控制

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振动与冲击 ›› 2020, Vol. 39 ›› Issue (14) : 122-129.

论文

基于概率论的爆破振动安全评估与控制

王林峰1,2，邓冰杰1,2，莫诎2,3，赵精富4，肖弘光4

作者信息 +

Safety assessment and control of blasting vibration based on the probability theory

WANG Linfeng1,2，DENG Bingjie1,2，MO Qu2,3，ZHAO Jingfu4，XIAO Hongguang4

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文章历史 +

摘要

爆破振动速度的预测及振动安全控制一直是爆破施工关注的热点问题。选用基本公式作为爆破振动速度预测模型，基于最小二乘法原理求解参数 K，a，b ；考虑爆破振动的随机性，定义了爆破振动速度相对误差(REBVV)，假设REBVV服从均值为0的正态分布，利用正态分布的传递性，建立了爆破振动速度的分布规律模型；并提出采用广义爆破振动速度相对误差方差来代替爆破振动速度相对误差以提高实测数据的利用率；引入概率论中的置信度水平这一概念，建立了一套爆破振动安全控制与评估模型。取置信度水平为95%，基于建立的安全控制与评估模型给出了依托工程重点控制区段爆破安全施工建议。

Abstract

The prediction of blasting vibration speed and vibration safety control are always the focus of attention in blasting construction.A basic formula was selected as the blasting vibration velocity prediction model, and the parameters K,a,b were solved based on the principle of least square method.Considering the randomness of blasting vibration, the relative error of blasting vibration velocity (REBVV) was defined.Assuming that the REBVV obeys the normal distribution with the mean value of 0, the distribution model of blasting vibration velocity was deduced by virtue of the transferability of the normal distribution.To improve the utilization ratie of measured data, the relative error variance of generalized blasting vibration velocity was proposed to replace the relative error variance of blasting vibration velocity.By introducing the concept of confidence level in the probability theory, a safety control and evaluation model of blasting vibration was established.Taking the confidence level as 95%, based on the established safety control and evaluation model, suggestions about the blasting construction safety for key controlled sections of the project were provided.

导出引用

王林峰1,2，邓冰杰1,2，莫诎2,3，赵精富4，肖弘光4. 基于概率论的爆破振动安全评估与控制[J]. 振动与冲击, 2020, 39(14): 122-129

WANG Linfeng1,2，DENG Bingjie1,2，MO Qu2,3，ZHAO Jingfu4，XIAO Hongguang4. Safety assessment and control of blasting vibration based on the probability theory[J]. Journal of Vibration and Shock, 2020, 39(14): 122-129

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