09-24-21 03:21AM 6511203 KDMT1201074076.pdf
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⑹�� 諛� �댁�� 11
��2�� 遺��ы���� 湲곕낯�대� 13
2.1. 遺��ы������ 湲곕낯援ъ“ 13
2.2. 紐④��≪���� 17
2.3. �⑥���뱀�깃끝�� 19
��3�� �����⑥���뱀�깃끝��痢≪���μ��� �뱀� 22
3.1. �����μ��� 援ъ�� 22
3.1.1. ���μ“���μ�(pressure panel) 22
3.1.2. 臾쇱���μ��(water reservoir) 23
3.1.3. ��濡��곗��(flowcell) 24
3.1.4. 怨듦린��嫄곗�μ�(air bubble trap) 25
3.1.5. 痢≪�����ㅽ��(measurement system) 26
3.2. 痢≪����由� 29
3.3. ����以�鍮� 30
3.3.1. �����щ��� �뱀�� 30
3.2.2. ��猷� 諛� HAE���ㅽ�� �ы�� 31
3.2.3. �����μ� �ы�� 32
��4�� ����寃곌낵 諛� 遺��� 34
4.1. 二쇰Ц吏���以��ъ�� �⑥���뱀�깃끝�� ��媛� 34
4.1.1. SWRC ��濡�洹몃�⑥�� �듯�� ����寃곌낵 34
4.1.2. 湲곗〈 ���� 諛⑸��� �댁�⑺�� 怨���異��� 39
4.1.3. ����寃곌낵 諛� �������� �댁�⑺�� �⑥���뱀�깃끝�� 45
4.1.4. 寃곌낵 鍮�援� 49
4.2. 二쇰Ц吏���以��ъ�� ���μ���� ��媛� 53
4.2.1. 遺��ы���� ���⑥���� �대� 53
4.2.2. �≪�����ν�뱀�깃끝�� 57
4.3. 遺��ы�� 臾댄���щ㈃ �����댁�� 63
4.3.1. 遺��ы�� 臾댄���щ㈃ �대� 63
4.3.2. 遺��ы�� 臾댄���щ㈃ �댁�� 67
��5�� 寃곕� 76
李멸�臾명�� 78
Table 3.1. Properties of Joomunjin sand 31
Table 4.1. Test results of drying process 35
Table 4.2. Test results of wetting process 36
Table 4.3. Parameters for Brooks and Corey method 46
Table 4.4. Parameters for van Genuchten method 47
Table 4.5. Parameters for Fredlund and Xing method 48
Table 4.6. Coefficient of determination analysis 52
Table 4.7. Comparison for SSCC 63
Table 4.8. Conditions of infinite slope 68
Fig. 2.1. Relationship for volume-mass of unsaturated soil 14
Fig. 2.2. General soil water characteristic curve 21
Fig. 2.3. Soil water characteristic curve for soil type 21
Fig. 3.1. Automated soil water characteristic curve measurement apparatus 22
Fig. 3.2. Pressure panel 23
Fig. 3.3. Water reservoir 24
Fig. 3.4. Flowcell 25
Fig. 3.5. Air bubble trap 26
Fig. 3.6. Measurement apparatus 27
Fig. 3.7. SWRC program 28
Fig. 3.8. Diagram of test apparatus 30
Fig. 3.9. Particle size distribution curve of Joomunjin sand 31
Fig. 3.10. Saturation of soil and HAE disk 32
Fig. 3.11. Saturation of test apparatus 33
Fig. 4.1. Mass of water outflow for matric suction 34
Fig. 4.2. Test result of Joomunjin sand 38
Fig. 4.3. Estimation of Brooks and Corey parameters 40
Fig. 4.4. Estimation of van Genuchten parameters 42
Fig. 4.5. Estimation of Fredlund and Xing parameters 45
Fig. 4.6. SWCC by Brooks and Corey method 46
Fig. 4.7. SWCC by van Genuchten method 47
Fig. 4.8. SWCC by Fredlund and Xing method 48
Fig. 4.9. Comparison for SWCC (drying process) 50
Fig. 4.10. Comparison for SWCC (wetting process) 51
Fig. 4.11. Expanded Mohr-Coulomb failure envelope curve 55
Fig. 4.12. Effect for suction stress according to shear strength 57
Fig. 4.13. Relationship between SWCC and SSCC 59
Fig. 4.14. SSCC of Joomunjin sand 62
Fig. 4.15. General infinite slope 64
Fig. 4.16. Variation of internal friction with weathered zone depth 66
Fig. 4.17. Infinite slope formed by Joomunjin sand 68
Fig. 4.18. SWCC of Joomunjin sand with ground water level 69
Fig. 4.19. Evaluation of factor of safety (drying process) 70
Fig. 4.20. Evaluation of factor of safety (wetting process) 71
Fig. 4.21. SSCC of Joomunjin sand with ground water level 72
Fig. 4.22. Variation of factor of safety with suction stress 74