Characterization of a moderately fractured granitic rock using single‐hole radar reflection, crosshole radar tomography, and ground penetrating radar at AECL's underground research laboratory, Pinawa, Manitoba

Use of borehole radar techniques to characterize fractured granitic bedrock at AECL's Underground Research Laboratory

“…Consequently, surface and borehole radar techniques (reflection/tomography) can be used to investigate the lithology and structural characteristics and nature of fracturing of the near surface granite rock to tens of meters. Previous work by Olsson et al (1987Olsson et al ( , 1992, Davis and Annan (1989), Holloway et al (1990Holloway et al ( , 1992, Lane et al (1994), Stevens et al (1994), Grasmueck (1996), Serzu et al (1998), andHaeni et al (2002) have shown that surface and borehole radar techniques are effective in mapping fractures, fracture zones, lithologic changes, and in identifying permeable zones in crystalline rocks.…”

“…Borehole radar is a geophysical method that has been found to be effective in detecting and characterizing fractures in granite rock. This paper discusses the results and interpretation of the borehole radar surveys, conducted in seven boreholes in support of the Moderately Fractured Rock Experiment (MFR) at the URL Serzu et al, 1998). …”

GPR for mapping fractures and as a guide for the extraction of ornamental granite from a quarry: A case study from southern Brazil

“…Some of them are: Tillard (1994), Serzu et al (1996Serzu et al ( , 1998, Grasmueck (1996), Liner and Liner (1997), Dérobert and Abraham (2000), Pipan et al (2000), Seol et al (2001Seol et al ( , 2002, Lualdi and Zanzi (2003, 2004), and Orlando (2003. In Brazil, the following have reported the use of GPR on granites: , Botelho et al ( , 1999, Botelho and Mufti (1998), Souza and Porsani (2002), and Souza (2002).…”

Study and application of migration technology in ground penetrating radar (GPR) data processing

“…Therefore, a strong reflection will appear at the interface, showing that there are black reflection characteristics in the horizontal direction of profile. According to its waveform, there is a strong waveform in the initial period, which is called the reflected wave at the interface between air and concrete [9]~ [10] . The reflection coefficient is positive when it is transmitted from high speed to low speed medium, and negative when it is transmitted from low speed medium to high speed medium.…”