基于季节性温度变化的波动型边坡锚索预应力定量预测研究

doi:10.13722/j.cnki.jrme.2017.0942

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Abstract

For the anchor cables of operation period in engineering，periodic fluctuation of cable load is closely related to temperature and other seasonal factors. The monitoring data of anchor cables in the high slope of permanent shiplock is uesd to build an ARDL model and simulate the fluctuation of cable load after the steps of using temperature as a main variable，analyzing the reasons for prestress change caused by temperature，finding the logs and using PCA to eliminate multicollinearity between lagged variables. The results show that temperature has a significant effect on anchor cable prestress. Finally，the validity of this model is verified by comparing predicted values with measured values. The long-termed process of prestress change caused by temperature has also been discussed.

Key words： slope engineering anchor cable prestress lagged variables principal component analysis(PCA) autoregressive distributed lag(ARDL) model

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	Articles by authors
	GE Qi
	LU Chengcheng
	WU Xian
	SUN Hongyue

Cite this article:

GE Qi,LU Chengcheng,WU Xian, et al. Study on quantitative prediction for fluctuant prestress of slope anchor cable based on seasonal temperature variation[J]. , 2018, 37(S2): 4245-4252.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2017.0942 OR https://rockmech.whrsm.ac.cn/EN/Y2018/V37/IS2/4245

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