Rock mass characterization for shallow granite by integrating rock core indices and seismic velocity. (March 2017)

• Record Type: Journal Article
• Authors: Lin, Daming; Lou, Feng; Yuan, Renmao; Shang, Yanjun; Zhao, Yun; MA, Jilei; Zhang, Lan; Li, Kun; Bao, Weixing
• Is Part Of: International journal of rock mechanics and mining sciences. Volume 93(2017)
• Page Start: 130
• Page End: 137
• Publication Date: 2017-03
• Subjects: Rock core index -- Seismic velocity -- Rock mass -- Granite; Rock mechanics -- Periodicals; Soil mechanics -- Periodicals; Mining engineering -- Periodicals; Roches, Mécanique des -- Périodiques; Sols, Mécanique des -- Périodiques; Technique minière -- Périodiques; 624.151305
• DOI: 10.1016/j.ijrmms.2016.08.007
• Languages: English
• ISSNs: 1365-1609

Abstract

Abstract: Mechanical and geophysical properties obviously vary between rocks and rock masses. In general, rock mass structures are seldom analyzed quantitatively based on geophysical information. In this paper, the authors combine data from 278 shallow boreholes and 12 CSNS engineering geo-exploration lines in a granitic area in South China and use the GOCAD software platform to establish a three-dimensional geological-geophysical model. A quantitative relationship between the rock mass structure and granitic RCI (rock core index) is then established. An empirical relationship between the RCI and the seismic velocity of the rock mass is also obtained, which is helpful for analyzing the features of the rock mass. This research improves the quantitative study of rock mass structures using geophysical parameters, which is helpful for the prevention of geological disasters along the highway in the granitic area. Highlights: Relationship between the rock mass structure and granitic RCI is established. Relationship between the RCI and the seismic velocity of a rock mass is also obtained. Quantitative study of rock mass structures using geophysical parameters is improved.