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Çѱ¹Áö¹Ý°øÇÐȸ / v.20, no.1, 2004³â, pp.109-120
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ºÒÆ÷È Áؼ³¸Å¸³ Áö¹ÝÀÇ Èë-¼öºÐ Ư¼º°î¼± ¹× ºÒÆ÷È Åõ¼ö°è¼ö ¿¹Ãø
( Prediction of Soil-water Characteristic Curve and Unsaturated Permeability Coefficient of Reclaimed Ground ) |
| ½ÅÀºÃ¶;ÀÌÇÐÁÖ;¿À¿µÀÎ; ÀÎõ´ëÇб³ Åä¸ñȯ°æ½Ã½ºÅÛ°øÇаú;¢ß¼ö¼º¿£Áö´Ï¾î¸µ ÅäÁúºÎ;͏®Æ÷´Ï¾Æ ÁÖ¸³´ë;
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| ºÒÆ÷ÈÁö¹Ý¿¡¼ ¹ß»ýµÇ´Â ºÎ °£±Ø¼ö¾ÐÀº ÇÔ¼öºñ º¯È¿¡ µû¶ó ºñ¼±ÇüÀûÀÎ °Åµ¿À» º¸À̸ç, ÀÌ °ü°è¸¦ Èë-¼öºÐ Ư¼º°î¼±(soil-water characteristic curve)À̶ó°í Á¤ÀÇÇÑ´Ù. ÇöÀç±îÁö ¿ì¸®³ª¶óÀÇ Èë¿¡ ´ëÇÑ Èë-¼öºÐ Ư¼ºÀÇ ¿¬±¸°á°ú´Â °ÅÀÇ Àü¹«ÇÑ ½ÇÁ¤À̱⠶§¹®¿¡ ºÒÆ÷È Áö¹ÝÀÇ ÀÀ·ÂÇØ¼® ¹× ħÅõÇØ¼® ½Ã, ¸¶¶¥È÷ ÀÔ·ÂÇÒ °è¼ö³ª Ư¼º°ªÀÌ ¾ø´Ù. º» ¿¬±¸¿¡¼´Â Áؼ³¸Å¸³Áö¹ÝÀÇ ÁÖ¿ä Åä»çÀÎ Áؼ³Åä¿Í ¸ð·¡, ±×¸®°í º¹ÅäÀç·Î »ç¿ëµÇ´Â ȰdzÈÅä¿¡ ´ëÇÑ Èë¼öºÐ Ư¼º½ÃÇèÀ» ½Ç½ÃÇÏ¿© Èë-¼öºÐ Ư¼ºÀ» ±Ô¸íÇÏ¿´À¸¸ç, ÇØ¼®Àû °ËÁõÀ» ÅëÇÏ¿© ºÒÆ÷È Áö¹ÝÀÇ ÀÀ·ÂÇØ¼® ¹× ħÅõÇØ¼® ½Ã ÇÊ¿äÇÑ °è¼ö¸¦ ºÐ¼®ÇÏ¿´´Ù. ¶ÇÇÑ, ÀÔµµºÐÆ÷°î¼±À¸·ÎºÎÅÍ Èë¼öºÐ Ư¼º°î¼± ¿¹Ãø¸ðµ¨À» Àû¿ëÇϰí Èë¼öºÐ Ư¼º½ÃÇè °á°ú¿Í ºñ±³ °ËÅäÇÏ¿´´Ù. Èë-¼öºÐ Ư¼º½ÃÇè°á°ú, ¼¼ °¡Áö ½Ã·á ¸ðµÎ ¶Ñ·ÇÇÑ È÷½ºÅ׸®½Ã½º Çö»óÀ» ³ªÅ¸³»¾úÀ¸¸ç, ±âÁ¸¿¡ Á¦¾ÈµÈ °æÇè¹æÁ¤½Ä¿¡ ½ÇÇè°á°ú¸¦ Àû¿ëÇÑ °á°ú Fredlund and XingÀÇ °æÇè¹æÁ¤½ÄÀº ¼¼ °¡Áö ½Ã·á ¸ðµÎ¿¡ ´ëÇÏ¿© ³ôÀº Á¤È®µµ¸¦ ³ªÅ¸³»¾ú´Ù. ÇÑÆí, ÀÔµµºÐÆ÷¸¦ ÀÌ¿ëÇÑ ¿¹Ãø¸ðµ¨Àº Fredlund and WilsonÀÇ ¹æ¹ýÀÌ °¡Àå ³ôÀº Á¤È®µµ¸¦ ³ªÅ¸³»¾ú´Ù. Èë-¼öºÐ Ư¼º½ÃÇè°á°ú¿Í ´Ù¾çÇÑ ¿¹Ãø¸ðµ¨À» ÅëÇÏ¿© ºÒÆ÷È Åõ¼ö°è¼ö¸¦ ¿¹ÃøÇÏ¿© »óÈ£ ºñ±³ÇÑ °á°ú, ¸ð·¡¿Í ȰdzÈÅä´Â Fredlund and WilsonÀÇ ¹æ¹ý, Áؼ³Åä´Â Arya and ParisÀÇ ¿¹Ãø¸ðµ¨ÀÌ ³ôÀº Á¤È®µµ¸¦ ³ªÅ¸³»¾ú´Ù. |
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| There has been outstanding research on the soil-water characteristic curves of unsaturated soils over the past several decades. Unfortunately, unsaturated soil mechanics has not been considered as an important factor in Korea. In this paper, laboratory test and numerical analysis(SoilVision Professional ver 3.04) were performed to investigate the prediction method of soil-water characteristic curve and unsaturated permeability coefficient in reclaimed ground. The pressure cell, desiccator, and tensiometor tests were conducted on three types of reclaimed soils(dredged soil, sand, weathered granite soil). Numerical analysis was executed to compare the results with the laboratory test results and also compared with the results of each prediction method. Based on the laboratory test, three different types of soils have shown different soil-water characteristic curves. The hysteresis fir these soils is clearly defined. As a result of numerical analysis, Fredlund & Xing's method and Fredlund & Wilson's model proved to worke out well for reclaimed ground soils in Korea. Also, predicting method based on the soil-water characteristic curves from the particle-size distributions is flirty reliable for estimating unsaturated permeability coefficient. |
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| Ű¿öµå |
| Air-entry value;Matric suction;Soil-water characteristic curve;unsaturated permeability coefficient;Volumetric water content; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.20, no.1, 2004³â, pp.109-120
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200411922288733)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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