Chapter
Jul 21, 2016
Dual Response Surface Methodology for the Robust Design of Continuous Compaction Measurement Value
Authors: Yang Xie [email protected], Tan Jiao, Xiao-Dong Song, and Zhi-Hong Nie [email protected]Author Affiliations
Publication: Geo-China 2016
Abstract
Robust design of continuous compaction measurement value aims at selecting the best combination of control factors in order to reduce the sensitivity to noise factors, so that the accuracy of the continuous compaction control can be improved. Based on the dual response surface methodology, mean and variance of the compaction meter value (CMV) are used as the optimization objective to develop a second-order polynomial model. Using the Box-Behnken design, continuous compaction control tests are carried out for three factors and three elevation levels at Zhijiang construction site of Shang Hai-Kun Ming High-Speed Railway. The three factors are vibration amplitude, excitation frequency and roller speed. The results show that the degree of stability on the CMV is given by: excitation frequency > amplitude > roller speed. Due to the “smaller-the-better” characteristic of the CMV, the best combination of technical parameters for the vibratory roller is: excitation frequency=28.0 Hz, roller speed=4.0 km/h, and vibration amplitude=1.10 mm. Finally, the field test verifies the applicability and the accuracy of this combination of technical parameters.
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© 2016 American Society of Civil Engineers.
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Published online: Jul 21, 2016
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Master’s Candidate, School of Civil Engineering, Central South Univ., Changsha, Hunan 410075, China. E-mail: [email protected]
Tan Jiao
Xiao-Dong Song
Senior Engineer, Shanghai-kunming Railway Company of Hunan, Changsha, Hunan 410008.
Associate Professor, School of Civil Engineering, Central South Univ., Changsha, Hunan 410075, China. E-mail: [email protected]
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