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A Study on Improvement Effects on Fractured Rock Mass by Consolidation Grouting in Tunnel  

정교철 (안동대학교 지구환경과학과)
서용석 (한국건설기술연구원 토목연구부)
Publication Information
The Journal of Engineering Geology / v.12, no.2, 2002 , pp. 189-202 More about this Journal
Abstract
In this study we carried out the in situ test in order to explore the grouting effects of fracture zone on mechanical properties and permeability in tunnel. After consolidation grouting the rock mass averaged 2.30 in the modulus of deformation and 2.49 in the modulus of elasticity. The results obtained through this study are as follows. (1) With advance of the injection steps, the total cement take shows uniformity of the rock mass. (2) After consolidation grouting the improvement of permeability can be identified by reduction of Lugeon values. (3) Grouting injection can improve deformability and strength of rock mass. (4) More mechanical improvement appears for more deformable rock mass before grouting injection.
Keywords
consolidation grouting; permeability; deformability; strength;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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[ Gustafson, G.;H. Stille ] / Tunnelling and Underground Space Technology   DOI   ScienceOn
2 In Situ experimental studies on improvement of rock masses by grouting treatment /
[ Kikuchi, T. ;T. Igari;S. Utsuki ] / Int. J. Rock mech. Min. Sci.   DOI   ScienceOn
3 The use of Transmissivity data from probe holes for predicting tunnel grouting /
[ Fransson, A.;G. Gustafson ] / Tunnelling and Underground Space Technology   DOI   ScienceOn
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