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- Title
Study on the Robust Regression of the Prediction of Vibration Velocity in Underwater Drilling and Blasting.
- Authors
Peng, Yaxiong; Wu, Li; Chen, Chunhui; Zhu, Binbin; Jia, Qinji
- Abstract
In underwater drilling and blasting engineering, the altitude effect must be reflected in predicting vibration velocity due to the complex water medium conditions and monitoring environment. In this paper, the similar law of explosion was employed and the elevation difference factor β<inline-graphic></inline-graphic> was introduced to embody the impact altitude had on vibration velocity, and the prediction formula which embodied the altitude effect was presented. On account of the weakness of the regression analysis of OLS method, the robust regression was proposed to predict vibration velocity, which enhanced the robustness of the prediction formula. Based on the shallow blasting engineering of Guoyuan Port in Chongqing, China, the method above was, respectively, adopted to fit vibration velocity, and three groups of underwater drilling and blasting tests in the same field conditions were conducted to certify the fitting results. Result shows that the optimized formula is more accurate than Sadove Formula. Besides, the weighted calculation can remarkably improve the robustness of the prediction formula, and the robust regression is more suitable for predicting vibration velocity in underwater drilling and blasting.
- Subjects
UNDERWATER drilling; BLASTING; VIBRATION (Mechanics)
- Publication
Arabian Journal for Science & Engineering (Springer Science & Business Media B.V. ), 2018, Vol 43, Issue 10, p5541
- ISSN
2193-567X
- Publication type
Article
- DOI
10.1007/s13369-018-3205-3