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Çѱ¹Áö¹Ý°øÇÐȸ / v.26, no.4, 2010³â, pp.37-45
¼Ò±ÝÀÇ °í°áÈ­ Çö»ó¿¡¼­ ¸ð¼¼°ü È¿°ú
( Effects of Capillary Force on Salt Cementation Phenomenon )
Âä²ÎÈË;º¯¿ëÈÆ;¾ö¿ëÈÆ;ÀÌÁ¾¼·; °í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇаú;°í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇаú;µ¿¸í±â¼ú°ø´Ü ÅͳκÎ;°í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇаú;
 
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±âÈĺ¯È­·Î ÀÎÇØ ¹°ÀÇ Áõ¹ß·®ÀÌ ¸¹Àº Áö¿ªÀÇ Áö¹Ý¿¡¼­´Â ÀÚ¿¬ÀûÀÎ ¼Ò±ÝÀÇ °í°áÈ­ Çö»óÀÌ ¹ß»ýÇÑ´Ù. ÀÌ·¯ÇÑ ¼Ò±ÝÀÇ °í°áÈ­ ºÐÆ÷´Â ¸ð·¡Áö¹Ý¿¡¼­ ¸ð¼¼°ü·Â¿¡ ¿µÇâÀ» ¹Þ´Â´Ù. ÀÌ ¿¬±¸ÀÇ ¸ñÀûÀº ÄÜ °üÀÔ½ÃÇè, Àü±âÀüµµÀ² ÃøÁ¤, »çÁø À̹ÌÁö ÃÔ¿µ, ºñÆÄ±« À̹ÌÁö ºÐ¼® ±×¸®°í ź¼ºÆÄ¿¡ ÀÇÇÑ ÇÁ·Î¼¼½º ¸ð´ÏÅ͸µÀ» ÀÌ¿ëÇÏ¿© ¼Ò±ÝÀÇ °í°áÈ­ Çö»ó¿¡ ´ëÇÑ ¸ð¼¼°ü·ÂÀÇ È¿°ú¸¦ °üÂûÇÏ´Â °ÍÀÌ´Ù. ½ÇÇèÀº ÀÔ»óÀç·á¸¦ ¸ðÇüÈ­ÇÑ ±Û¶ó½ººñÁ ¼Ò±Ý¹°¿¡ Æ÷È­½ÃŲ ÈÄ, ¿Àºì¿¡ ³Ö¾î ½Ã·á¸¦ °ÇÁ¶½ÃÅ´À¸·Î½á °í°áÈ­¸¦ ¹ß»ý½ÃÄ×´Ù. ½ÇÇè°á°ú, °í°áµÈ ¼Ò±ÝÀÇ ³óµµ´Â ½Ã·áÀÔ°æÀÌ ÀÛÀº °æ¿ì ÃÖ»óºÎ¿¡¼­ ³ô¾Ò°í, ½Ã·áÀÔ°æÀÌ Å« °æ¿ì Áß°£ ¶Ç´Â ÇϺο¡¼­ ³ô¾Ò´Ù. °í°áµÈ ½Ã·á¿¡¼­ ³ôÀº ¼Ò±Ý³óµµÀÇ À§Ä¡´Â ÇØ¼®Àû ¹æ¹ýÀ¸·Î »êÁ¤µÈ ¸ð¼¼°ü ³ôÀÌ¿Í À¯»çÇÏ¿´´Ù. º» ¿¬±¸¿¡¼­ ¼öÇàÇÑ 5°¡Áö ½ÇÇèÀº ¸ð¼¼°ü·ÂÀÌ ¼Ò±ÝÀÌ °í°áµÈ Èë°ú °°Àº ÀÔ»óÀç·áÀÇ °Åµ¿¿¡ Áß¿äÇÑ ¿µÇâÀ» ³¢Ä¡´Â °ÍÀ» º¸¿©ÁØ´Ù.
Salt cementation, a typical naturally-cemented phenomenon, may occur due to water evaporation under the change of climate. Capillary force may influence the distribution of cement in granular soils. This study addresses the effect of capillary force on salt cementation using five different techniques: cone penetration test, electrical conductivity measurement, photographic imaging technique, nondestructive imaging technique, and process monitoring by elastic wave. Glass beads modeling a particulate media was mixed with salt water and then dried in an oven to create the cementation condition. Experimental results show that salt cementation highly concentrates at the top of the small particle size specimens and at the middle or the bottom of the large particle specimens. The predicted capillary heights are similar to the locations of high salt concentration in the cemented specimens. Five suggested methods show that the behavior of salt-cemented granular media heavily depends on the capillary force.
 
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Capillary;Conductivity;Cone tip resistance;Compressional wave;Salt cementation;Shear wave;Unsaturated soil;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.26, no.4, 2010³â, pp.37-45
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201021452660541)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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