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Characterization of Crack Aperture in Weak Bedrock for Optimum Grouting Method  

Kim, Jong-Tae (Dept. of Earth & Environmental Sciences, Andong National University)
Kang, Seon-Mi (Dept. of Earth & Environmental Sciences, Andong National University)
Choo, Chang-Oh (Dept. of Earth & Environmental Sciences, Andong National University)
Lee, Sang-Eun (Dept. of Mineral and Energy Resources Engineering, Kangwon National University)
Jeong, Gyo-Cheol (Dept. of Earth & Environmental Sciences, Andong National University)
Publication Information
The Journal of Engineering Geology / v.17, no.2, 2007 , pp. 309-315 More about this Journal
Abstract
The purpose of this paper is to make a close inquiry into the relationship between width and length of crack as a method to maximize compensation effect by grouting discontinuity within weak bedrock, together with emphasis on application of the basic data to the reformation of weak bedrock in a construction site. The result reveals that the length of trace at each fracture averages $1.5{\sim}3.0mm$. Based on analysis of openness distribution pattern at each fracture, the estimated values are quite well in agreement with those of the experiment, with a negative trend in the distribution of aperture width.
Keywords
weak bedrock; grout; crack; aperture; trace length;
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