土工基础

›› 2011, Vol. 25 ›› Issue (5): 62-65.

• 工程实录 • 上一篇    下一篇

构造振速函数近似回归计算爆破振速的方法研究

周 力1， 熊 轩2   

  1. （1.湖北省水利厅水电工程检测研究中心，武汉 430071； 2.湖北工业大学，武汉 430068）
  • 收稿日期:2011-09-26 出版日期:2011-10-20 发布日期:2011-11-23
  • 作者简介:周力,工程师。

Approximation Regression Method in Predicting Blasting Induced Particle Velocity by Constructing a Vibration Velocity Function

ZHOU  Li 1, XIONG Xuan 2   

  1. (1. Testing and Research Center for Hydropower Engineering, Hubei Provincial Department of Water Resources, Wuan 430071; 2. Hubei University of Technology, Wuhan 430068, China)
  • Received:2011-09-26 Online:2011-10-20 Published:2011-11-23

摘要： 介绍了构造振速函数近似回归地面质点振速的计算方法，它可以根据多个振速函数关系式的计算结果与实测数据进行对比分析，优选出与实际最接近的关系式作为振速预报的依据，克服了萨氏等常用公式对任何场地条件和爆破条件都采用一种固定模式的缺点，能够有效提高地面质点振速预估的精度。该方法在预测爆破振速、确定爆破安全药量和安全距离时，取得了更好的预测效果。

关键词: 振速函数, 爆破振速, 回归计算

Abstract: This paper introduces an approximation regression method for predicting the blasting induced peak particle velocity (PPV) by constructing a vibration velocity function. By comparing the measured and the predicted PPV values from several velocity functions, this method can optimize the best approximation formula that is close to the measured value. Unlike the conventional prediction formulas that a uniform relationship is used regardless the site and blasting conditions, this method can improve the prediction accuracy of the PPV. In addition to the ground PPV prediction, this approximation regression method can also be used in determining the safety dose, and the safety distance in blasting engineering.