Supporting characteristics analysis of constant resistance bolts under coupled static-dynamic loading

doi:10.1007/s11629-018-5044-9

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2019 > Vol16 No.5

	Supporting characteristics analysis of constant resistance bolts under coupled static-dynamic loading
	Chen, Feng; Tang, Chun-an; Sun, Xiao-ming; Ma, Tian-hui; Du, Yan-hong
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2019
卷号	16 期号:5 页码:1160-1169
关键词	Rock mechanics Coupled static-dynamic loading Deep laneway Constant resistance bolt RFPA
ISSN号	1672-6316
DOI	10.1007/s11629-018-5044-9
文献子类	Article
英文摘要	To study the tensile mechanical properties of constant resistance bolts, the RFPA (Rock Failure Process Analysis) statics software is used to perform a uniaxial tensile test on a constant resistance bolt. The numerical test results show that the plastic strain value is 12 times the magnitude of the elastic strain. During plastic deformation, the fluctuation in the stress magnitude is relatively stable, indicating that the bolt has good constant resistance characteristics. The numerical test results are in good agreement with the laboratory test results of M.C. He, and the accuracy and reliability of the numerical test method are verified. Therefore, the RFPA software with coupled static-dynamic loading is further adopted to study the supporting effects of traditional bolts and constant resistance bolts under coupled static-dynamic loading. The numerical comparison of the test results show that the constant resistance bolts can effectively control the deformation amount and rate of the laneway surrounding rock, reduce the total and rate of increase in the accumulated acoustic emissions, decrease the stress on the units in the model and protect the stability of the laneway. This paper verifies that a constant resistance bolt has better impact resistance mechanical properties than those of a traditional bolt and provides an effective way to control rock burst and soft rock that is prone to large deformation damage.
电子版国际标准刊号	1993-0321
语种	英语
WOS记录号	WOS:000467121200015
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/46499]
专题	Journal of Mountain Science_Journal of Mountain Science-2019_Vol16 No.5
推荐引用方式 GB/T 7714	Chen, Feng,Tang, Chun-an,Sun, Xiao-ming,et al. Supporting characteristics analysis of constant resistance bolts under coupled static-dynamic loading[J]. JOURNAL OF MOUNTAIN SCIENCE,2019,16(5):1160-1169.
APA	Chen, Feng,Tang, Chun-an,Sun, Xiao-ming,Ma, Tian-hui,&Du, Yan-hong.(2019).Supporting characteristics analysis of constant resistance bolts under coupled static-dynamic loading.JOURNAL OF MOUNTAIN SCIENCE,16(5),1160-1169.
MLA	Chen, Feng,et al."Supporting characteristics analysis of constant resistance bolts under coupled static-dynamic loading".JOURNAL OF MOUNTAIN SCIENCE 16.5(2019):1160-1169.