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김현수(Hyun-Su Kim),김현민(Hyun-Min Kim),장두식(Doo-Shik Chang),신현곤(Hyeon-Kon Shin),우성원(Sung-Won Woo) 한국철도학회 2012 한국철도학회 학술발표대회논문집 Vol.2012 No.5
00차량기지 건설공사 지역은 경상분지 내 백악기 퇴적암인 사암 및 셰일이 호층으로 분포되어 있는 지역으로 차량기지 부지조성으로 대규모 깎기 비탈면이 발생하고 있다. 이러한 지역의 비탈면에서 발생하는 가장 큰 문제는 층리면에 충진된 점토에 의한 비탈면의 활동파괴와 대기 노출시 풍화가 급속히 진행된다는 것이다. 따라서 본 논문은 다양한 지반조사와 시험을 통해 퇴적암의 역학적 특성을 분석하고 그 결과를 활용한 합리적인 비탈면 설계방법을 제시하고자 한다. The 00 Railroad Depot construction work located in the local area, which is the sedimentary rock in Kyungsang Basin. The sedimentary rock composed sand stone and shale. A large-scale cut slope is constructed by the railroad depot. The very important problem of this slope is sliding failure occurred by clay in bedding faces and weathering rapid processes in the air. This paper suggests a rational design method using the result, that is obtained by various investigation and laboratory test.
연약점성토 지반에서 물유리계 약액주입공법의 강도 특성에 관한 연구
한상현 ( Sang-hyun Han ),이형규 ( Hyoung-kyu Lee ),장두식 ( Doo-shik Chang ) 한국고등직업교육학회 2001 한국고등직업교육학회논문집 Vol.2 No.2
The application of the water-glass chemical grouting method is gradually increasing because of short soil improvement periods in the foundation ground of mid to small size structure. The grouting patterns of chemical grouting method in soft clay ground is not an ideal permeation grouting but a hydrofracturing and partial permeation grouting. So it is very difficult to decide the effect of soil strength improvement with laboratory test results of undisturbed samples obtained from some one deposit. In this study, the effect of soil strength improvement in application of soft clay ground with the JCM(Just Selected Chemical Grouting Method) sorted as chemical grouting method was confirmed through field tests(standard penetration test, cone penetration test, plate bearing test). The test results shows that the strength of the grouting ground is 3 times or more than the strength of original ground.