조립질 입자크기가 전단강도에 미치는 영향

A Study on Shear Strength of Granular Due to The Various Particle Size

  • 발행 : 2012.04.01

초록

흙의 전단강도는 흙 속의 임의의 면을 따라 발생하는 파괴와 활동에 저항하는 힘으로 흙의 공학적 특성 중에 가장 중요한 요소 중의 하나이다. 전단강도는 앝은 기초나 말뚝의 지지력 해석방법과 같은 기초공학의 문제나 댐 및 절 성토 후의 사면안정, 그리고 토류 구조물의 횡토압과 같은 흙의 안정 문제 해석 등에 이용된다. 본 연구는 화강풍화토에서 점성토 성분을 제거하고 건조시킨 후, 2 00mm(10번체)와 0 85mm(20번체), 0 475mm(40번체)로 분류한 시료로 직접전단시험기를 이용하여 전단강도 변화를 파악하고자 하였으며, 또한 산호모래를 선정하여 비교 시험을 실시하였다. 따라서 본 연구는 입자의 크기에 따른 전단강도 특성을 비교한 연구에 도움이 될 것으로 판단된다.

Shear strength of soil is power that resists failure and sliding according to any face in soils and one of the most important factors during engineering properties of soil. Shear strength is used for engineering science problems as bearing capacity methods of foundation or piles, slope stability after dam or Cutting Embankment and stability problem analysis of soils as lateral earth pressure of soil structures, ets. This study has analyzed shear strength change of samples classified 2.00mm(10sieve)와 0.85mm(20sieve), 0.475mm(40sieve) using direct shear tester after removing and drying cohesive soil ingredient of Weathered granite soil Therefore, this study would help studies about shear strength properties by particle size.

키워드

참고문헌

  1. Eum Se-Jong(2004), Shearing Strength Characteristics of Joomunjin Sand by Direct Shear Test, KSCE Annual Conference & Civil Exposition, Vol. 2004, No. 10, pp. 5329-5334.
  2. Kim Jong Ryeol, Choi Young Hwan, Jung Ja Young, Kang Kwon Soo(2000), Shear Parameters of Jumunjin Sand from Different Direct Shear Test Methods, KSCE Annual Conference & Civil Exposition, Vol. 2000, No. 2, pp. 439-442.
  3. Korea Water Resources Corporation(2001), Shear Strength Characteristics of Rockfill Materials using Large Triaxial Testing Apparatus, Final report, Vol. 2000, pp.
  4. Lee Dae-Soo, Kim Kyoung-Yul, Hong Sung-Yun, Oh Gi-Dae, Jeong Sang-Seom(2009), Characteristics of Shear Behavior for Coarse Grained Materials Based on Large Scale Direct Shear Test(III) - Final Comprehensive Analysis, Journal of the Korean Geotechnical Society, Vol. 25, No. 4, pp. 39-54.
  5. Oh Myung-Ju(2010), A Study on Changes of Shear Strength According to Particle Size of Coarse Grained Soil, Doctoral Dissertation, Sangji Univ., pp. 22-32.
  6. Seo Min Woo, Ha Ik Soo, Kim Bum Joo(2007), Effects of Particle Size and Test Equipments on Shear Behavior of Coarse Materials, Journal of the Korean Society of Civil Engineers, Vol. 27, No. 6, pp. 393-400.