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	Similarity identification method on formational interfaces and application in general granite
	Tan, Zhuo-ying ; Wang, Si-jing ; Cai, Mei-feng
	2010-10-12 ; 2010-10-12
关键词	rock drilling process parameters similarity identification slope coefficient Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Mining & Mineral Processing
中文摘要	An instrumented drilling system can be applied for the acquisition of drilling process parameters. The system can provide continuous and huge data for geotechnical engineering. However, due to the complexity of ground strata, the variation in the drilling parameters with stratigraphical characteristics is great and the correlation between likely comparable parameters is not high, which limits the use of conventional correlation approaches in this field. How to use the data for engineering and how to get a reasonable interpretation for the relationships among the drilling parameters, as well as between a drilling parameter and formational characteristics, become a technical choke point for the development and application of the instrumented drilling system. Based on similarity criteria, the extraction of sample data and characteristics, the pretreatment of data and feature matching algorithms have been analyzed and an approach of slope coefficient searching identification has been established. A case study was carried out for the similarity between the rotational speed of the drill bit, flushing pressure, and effective thrust force graphics in general weathered granite. The result shows that the similarity coefficients between the rotational speed of the drill bit, flushing pressure, and effective thrust force are 0.72 and 0.83, respectively. Although there are differences between the distances of the graphics, the curves of both rotational speed and flushing pressure agree with the effective thrust curve in shape, which provides a possible method for the identification of various formations by use of the similarity between feature drilling parameters.
语种	英语 ; 英语
出版者	INT JOURNAL MINERALS METALLURGY & MATERIALS, EDITORIAL DEPT ; BEIJING ; 30 XUEYUANLU, BEIJING 100083, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/81907]
专题	清华大学
推荐引用方式 GB/T 7714	Tan, Zhuo-ying,Wang, Si-jing,Cai, Mei-feng. Similarity identification method on formational interfaces and application in general granite[J],2010, 2010.
APA	Tan, Zhuo-ying,Wang, Si-jing,&Cai, Mei-feng.(2010).Similarity identification method on formational interfaces and application in general granite..
MLA	Tan, Zhuo-ying,et al."Similarity identification method on formational interfaces and application in general granite".(2010).

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