Probabilistic Predictions of the Convergences of Surrounding Rock Masses in Underground Rock Caverns

doi:10.1061/(ASCE)GM.1943-5622.0001659

	Probabilistic Predictions of the Convergences of Surrounding Rock Masses in Underground Rock Caverns
	Li, Shaojun 4; Zhao, Hongbo 3; Zheng, Minzong 1,2; Ruan, Hang 4
刊名	INTERNATIONAL JOURNAL OF GEOMECHANICS
	2020-05-01
卷号	20 期号:5 页码:8
关键词	Rock excavations Displacements Uncertainties Relevance vector machine Monte Carlo simulations
ISSN号	1532-3641
DOI	10.1061/(ASCE)GM.1943-5622.0001659
英文摘要	The convergences of surrounding rock masses are important indexes which can be used to evaluate the stability levels of underground rock excavations. The predictions and control of convergences are essential tasks to ensure that safety measures are met in such rock excavation processes as mining, tunneling, and underground constructions. Meanwhile, many uncertainties are associated with the predictions of convergences due to the complexity and nonlinearity of rock mechanical behaviors. However, such uncertainties had not been considered in previous studies. In this paper, a novel method was proposed to predict the convergences and uncertainties of surrounding rock masses in underground caverns. In the present study, a relevance vector machine (RVM) was adopted to build the relationships between the convergence displacement and mechanical parameters of the rock masses. Numerical simulations and experimental designs were used to provide the samples for the RVM model. Then, Monte Carlo simulation (MCS) was utilized to simulate the uncertainties of the convergences based on the RVM model. The proposed method was verified using different examples with the simulated uncertainties. The results showed that the proposed method had the ability to reasonably predict the convergences and their related uncertainties. When compared with the deterministic method, the proposed method was found to be more rational and scientific and had also conformed to rock engineering practices. Therefore, the proposed method provided a scientific way to predict convergences and displacement uncertainties of surrounding rock masses in underground caverns.
资助项目	National Natural Science Foundation of China[U1765206] ; National Natural Science Foundation of China[51621006] ; Program for Innovative Research Teams (in Science and Technology) of the University of Henan Province[15IRTSTHN029]
WOS研究方向	Engineering
语种	英语
出版者	ASCE-AMER SOC CIVIL ENGINEERS
WOS记录号	WOS:000521358600005
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/23790]
专题	中科院武汉岩土力学所
通讯作者	Li, Shaojun
作者单位	1.Univ Chinese Acad Sci, Fac Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 3.Shandong Univ Technol, Sch Civil & Architectural Engn, Zibo 255000, Peoples R China 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China
推荐引用方式 GB/T 7714	Li, Shaojun,Zhao, Hongbo,Zheng, Minzong,et al. Probabilistic Predictions of the Convergences of Surrounding Rock Masses in Underground Rock Caverns[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2020,20(5):8.
APA	Li, Shaojun,Zhao, Hongbo,Zheng, Minzong,&Ruan, Hang.(2020).Probabilistic Predictions of the Convergences of Surrounding Rock Masses in Underground Rock Caverns.INTERNATIONAL JOURNAL OF GEOMECHANICS,20(5),8.
MLA	Li, Shaojun,et al."Probabilistic Predictions of the Convergences of Surrounding Rock Masses in Underground Rock Caverns".INTERNATIONAL JOURNAL OF GEOMECHANICS 20.5(2020):8.