Integrating in situ tests on the excavation damaged zone of underground caverns

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 会议论文

	Integrating in situ tests on the excavation damaged zone of underground caverns
	Ai, F.1; Liu, J.1; Chen, N. S.2; Xiao, H. B.3; Shao, G. H.4
	2017
会议日期	DEC 30-31, 2016
会议地点	Hong Kong, PEOPLES R CHINA
页码	9-15
英文摘要	This paper presents a comprehensive study of the unloading relaxation, damage fracture, and degradation of the mechanical parameters of surrounding rocks in underground caverns during excavation using acoustic velocity test, borehole camera test, and borehole elastic modulus test. First, the range of excavation damaged zone is determined by the results of acoustic velocity test. Then, from borehole camera images, information of the distribution and evolution of fissures and cracks during blasting excavation is obtained. Finally, the relationship between elastic modulus and acoustic velocity is established by the borehole elastic modulus tests and acoustic velocity results. The mechanical parameters of the excavation damaged zone and surrounding undisturbed rocks of underground caverns are directly determined by in situ geophysical and geotechnical tests. It provides a direct basis for feedback analysis of displacement monitoring and advanced deformation forecasting of surrounding rocks in underground caverns.
会议录	APPLIED MECHANICS AND CIVIL ENGINEERING VI
会议录出版者	CRC PRESS-TAYLOR & FRANCIS GROUP
会议录出版地	BOCA RATON
语种	英语
WOS研究方向	Engineering ; Mechanics
WOS记录号	WOS:000408462600002
内容类型	会议论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4920]
专题	岩土力学所知识全产出_会议论文国家重点实验室知识产出_会议论文
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 2.Northwest Engn Corp Ltd; 3.Huaneng Lancang River Hydropower Corp Ltd; 4.Huaneng Lancang River Hydropower Corp Ltd, Wulonglong & Lidi Hydropower Construct Author
推荐引用方式 GB/T 7714	Ai, F.,Liu, J.,Chen, N. S.,et al. Integrating in situ tests on the excavation damaged zone of underground caverns[C]. 见:. Hong Kong, PEOPLES R CHINA. DEC 30-31, 2016.