The Method of Determining Excavation Damaged Zone by Acoustic Test and the Application in Engineering Cases

doi:10.1155/2021/5533828

	The Method of Determining Excavation Damaged Zone by Acoustic Test and the Application in Engineering Cases
	Sun, Qian-Cheng 1,2; Guo, Hao-Sen 1,3; Xu, Zhi-Hua 1; Liu, Yue 1; Xu, Xiao 1
刊名	ADVANCES IN CIVIL ENGINEERING
	2021-05-29
卷号	2021 页码:13
ISSN号	1687-8086
DOI	10.1155/2021/5533828
英文摘要	It is very important to accurately determine the depth of excavation damaged zone for underground engineering excavation and surrounding rock stability evaluation, and it can be measured by acoustic test, but there is no quantitative method for analysis of the results, and it relies heavily on the experience of engineers, which leads to the low reliability of the results and also limits the application of the acoustic method. According to substantial field test data and the feedback of surrounding rock support parameters, the boundary method is proposed to determine the depth of excavation damaged zone in surrounding rock based on the relation between the ultrasonic velocity of measured point and the background wave velocity of rock mass. When the method is applied to the columnar jointed rock mass of Baihetan and the deep-buried hard rock of Jinping, the excavation damaged zone was well judged. The results in the Baihetan project show that the proposed method of determining excavation damage zone by the acoustic test can well demonstrate the anisotropy characteristics of the columnar jointed rock mass, and the damage evolution characteristics of jointed rock mass at the same position can also be obtained accurately. Moreover, the method also can accurately reveal the damage evolution process of the deep-buried hard rock under the condition of high ground stress, which proved the applicability of this method in jointed or nonjointed rock masses.
资助项目	National Natural Science Foundation of China[51909136] ; Open Research Fund of Key Laboratory of State Key Laboratory of Geomechanics and Geotechnical Engineering[Z018012] ; Open Research Fund of Key Laboratory of Geological Hazards on Three Gorges Reservoir Area (China Three Gorges University), Ministry of Education[2020KDZ03] ; Young Talents Development Plan of Hubei Province
WOS研究方向	Construction & Building Technology ; Engineering
语种	英语
出版者	HINDAWI LTD
WOS记录号	WOS:000668998500001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/27353]
专题	中科院武汉岩土力学所
通讯作者	Guo, Hao-Sen; Xu, Zhi-Hua
作者单位	1.China Three Gorges Univ, Minist Educ, Key Lab Geol Hazards Three Gorges Reservoir Area, Yichang 443002, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 3.East China Jiaotong Univ, Nanchang 330000, Jiangxi, Peoples R China
推荐引用方式 GB/T 7714	Sun, Qian-Cheng,Guo, Hao-Sen,Xu, Zhi-Hua,et al. The Method of Determining Excavation Damaged Zone by Acoustic Test and the Application in Engineering Cases[J]. ADVANCES IN CIVIL ENGINEERING,2021,2021:13.
APA	Sun, Qian-Cheng,Guo, Hao-Sen,Xu, Zhi-Hua,Liu, Yue,&Xu, Xiao.(2021).The Method of Determining Excavation Damaged Zone by Acoustic Test and the Application in Engineering Cases.ADVANCES IN CIVIL ENGINEERING,2021,13.
MLA	Sun, Qian-Cheng,et al."The Method of Determining Excavation Damaged Zone by Acoustic Test and the Application in Engineering Cases".ADVANCES IN CIVIL ENGINEERING 2021(2021):13.