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- 저자 : 강우묵 ( Yea Mook Kang ) (검색결과 1 건)
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육상(陸上) 및 항만지역토(港灣地域土)의 압밀특성치(壓密特性値)의 상관성(相關性)
도덕현 ( Duk Hyun Doh ),이성태 ( Seong Tae Lee ),강우묵 ( Yea Mook Kang ) 한국농공학회 1983 韓國農工學會誌 : 전원과 자원 Vol.25 No.4
305 samples of alluvial deposit in inland and harbour districts were selected and consolidation charateristics of the alluvium were put in order statiscally. The correlations between them were as follows. 1. The relationships between LL(liguid limit) and C<sub>c</sub> (compression index) were explained as C<sub>c</sub>=0. 03(LL-21.7) in case of inland district soil and as C<sub>c</sub>=0.019(LL-19) in case of harbour district soil. As compared with formular proposed by Skernpton, the gradient of this linear line was slight steep. 2. The relationships between PI(plastic index) and C<sub>c</sub> were explained as C<sub>c</sub>=0.063 PI-0.52 in case of inland district soil and C<sub>c</sub>=0.043 PI-0.31 in case of harbour district soil. 3. As void ratio and natural moisture content were increased, C<sub>c</sub> was increased, and as wet density was increased, C<sub>c</sub> was decreased with a gentle curve. 4. As LL and P1 increased, m<sub>v</sub>(coefficient of volume compressibility) was increased but if LL and P1 was increased beyond a certain extend, m<sub>v</sub> has a tendency of constant value, that is, mv show a tendency to take constant value in the very soft clay. and m<sub>v</sub> in P=2.5kg/cm<sup>2</sup> was about 10<sup>-1</sup>cm<sup>2</sup>/kg in case of land district soil and 6x 10<sup>-1</sup>cm<sup>2</sup>/kg in case of harbour district soil lower than that in P=0.25kg/crn<sup>2</sup>. 5. C<sub>v</sub>(coefficient of consolidation) was a tendency to decrease with a gentle curve as LL was increased, and C<sub>v</sub> in P=0. 25kg/cm<sup>2</sup> was about 3x10<sup>-1</sup>cm<sup>2</sup>/min larger than that in P=2.5kg/cm<sup>2</sup>. 6. Relationships between P<sub>y</sub>(pre-consolidation pressure) which is included over conso-lidation soil and ∑r1h(effective over-burden pressure) were explained as P<sub>y</sub>=1.12 ∑r'h in case of land district soil and as P<sub>y</sub>=1.15∑r'h in case of harbour district soil. 7. Some of the properties show good correlations between them, practical and effective applications of these correlations are expected in the planning and excution of soil investigation and also in the evaluation of the results.
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