ISRM Suggested Method for Rock Fractures Observations Using a Borehole Digital Optical Televiewer

被引：100

作者：

Li, S. J. ^{[1
]}

Feng, Xia-Ting ^{[1
]}

Wang, C. Y. ^{[1
]}

Hudson, J. A. ^{[2
]}

机构：

[1] Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China

[2] Univ London Imperial Coll Sci Technol & Med, Dept Earth Sci & Engn, London SW7 2AZ, England

来源：

ROCK MECHANICS AND ROCK ENGINEERING | 2013年 / 46卷 / 03期

关键词：

SOUTHEASTERN FLORIDA; BISCAYNE AQUIFER; CONDUCTIVITY; EVOLUTION; POROSITY; IMAGES; CAMERA; DAMAGE;

D O I：

10.1007/s00603-012-0344-9

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

ISRM suggested method for rock fractures observations using a borehole digital optical televiewer is reviewed. According to in situ observation of the evolution characteristics of fractures subject to excavation or rheological effect the EDZ in the rock mass is identified based on the new fractures observable via the precision of the digital optical borehole camera. The apparatus related to this in situ observation of rock mass fractures mainly consists of the probe, depth measuring device, integrating control box, data logger cables, and alternative measuring rods for horizontal or inclined boreholes. The borehole wall in the panoramic image is represented as a ring, in which the inner circle is the upper end of the borehole wall and the outer circle is the lower end. The position of a point on the borehole wall as displayed on the ring is related to the azimuth of this point. The integrating control box is the power supply for the whole testing system, which controls the collection, input and output of the panoramic video signal and depth pulse signal.

引用

页码：635 / 644

页数：10

共 26 条

[1] New method for quantification of vuggy porosity from digital optical borehole images as applied to the karstic Pleistocene limestone of the Biscayne aquifer, southeastern Florida [J].