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Çѱ¹Áö¹Ý°øÇÐȸ / v.26, no.11, 2010³â, pp.47-61
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³«µ¿° »ï°¢ÁÖ ¹ü¶÷¿ø¿¡¼ ºÎ»êÁ¡ÅäÀÇ ¼ö¸®ÇÐÀû Ư¼º
( Hydraulic Characteristics of Busan Clay in the Floodplain of the Nakdong River Delta ) |
| Á¤¼º±³;À̳²±â;ÀÌÁ¤¸¸;¹Î¼¼Âù;È«¾çÇ¥; µ¿¾Æ´ëÇб³ Åä¸ñ°øÇаú;ºÎ»êµµ½Ã°ø»ç °³¹ßÆÀ;µ¿¾Æ´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;µ¿¾Æ´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;µ¿¾Æ´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;
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| ¿¬Á÷¹è¼ö°øÀÌ ¸Å¼³µÇ´Â Á¡ÅäÁö¹Ý¿¡¼ ¾Ð¹Ð¼Óµµ¸¦ ¿¹ÃøÇϱâ À§Çؼ´Â ´Ù¾çÇÑ Á¾·ùÀÇ °í±Þ ½Ç³» ¹× ÇöÀåÅäÁú½ÇÇèÀ» ¼öÇàÇÏ¿© ÇÕ¸®ÀûÀ¸·Î ¼ö¸®ÇÐÀû Ư¼ºÄ¡¸¦ °áÁ¤ÇÏ´Â °ÍÀÌ ¹Ù¶÷Á÷ÇÏ´Ù. ±×·¯³ª ½Ç¹«¿¡¼¿Í °°ÀÌ º¸ÆíÀûÀÎ ¼öÇàÇÒ °æ¿ì¿¡ ¼ö¸®ÇÐÀû Ư¼ºÀ» ÇÕ¸®ÀûÀ¸·Î ±Ô¸íÇÏ´Â °ÍÀÌ ¿ì¼± ÇÊ¿äÇÏ´Ù. À̸¦ À§ÇÏ¿© ³«µ¿° Ç㱸ÀÇ ¹ü¶÷¿ø Áö¿ª¿¡ ¼ÓÇÏ´Â 5°³ ÁöÁ¡À» ¼±Á¤ÇÏ¿© ¼ö¸¹Àº CPT ¼Ò»ê½ÃÇè, º¸ÆíÀûÀÎ ½Ç³» Åõ¼ö ¹× ¾Ð¹Ð½ÇÇèÀ» ½Ç½ÃÇÏ¿´À¸¸ç, ±×µéÀ» ÀÌ¿ëÇÏ¿© Á¾ÇÕÀûÀ¸·Î ºÐ¼®ÇÏ¿´´Ù. ±× °á°ú, ÀÌ Á¡ÅäÀÇ ¼öÆò¹æÇ⠾йаè¼ö($C_{h,NC}$) ¹× Åõ¼ö°è¼ö($k_{h,OC}$)´Â Balight & Levadoux(1986)ÀÇ Á¦¾È¹ýÀ» Àû¿ëÇÑ CPT¼Ò»ê½ÃÇè°á°ú°¡ °¡Àå ÀûÇÕÇÑ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¿©±â¼ $C_{h,NC}$¿Í $k_{h,OC}$´Â °¢°¢ $0.4{sim}3.0;cm^2/sec$ ¹× $(1{sim}3){ imes}10^{-9}m/sec$ ¹üÀ§¿¡ ÀÖÀ¸¸ç, µÎ °ªÀº ±íÀÌ¿¡ µû¶ó ¾à°£¾¿ Áõ°¡ ¹× °¨¼ÒÇÏ´Â °æÇâÀ» º¸¿´´Ù. ÀÌ·¯ÇÑ ÅðÀûȯ°æÀ» Àß ¹Ý¿µÇÏ´Â °ÍÀ¸·Î ÇØ¼®µÇ¾ú´Ù. |
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| To predict the settlement rate of a ground area that incorporates vertical drains, it is desirable to conduct various kinds of advanced field and laboratory tests for hydraulic properties. However, it is urgently needed to appropriately evaluate the hydraulic properties using the results of conventional soil tests which are extensively used for local practice. To achieve this purpose, a number of CPT dissipation test, laboratory permeability and consolidation tests were performed at five sites in the floodplain of the Nakdong River delta, and the test data were comprehensively analyzed. As a result, it is found that the coefficients of horizontal consolidation ($C_{h,NC}$) and permeability ($k_{h,OC}$) of the clay agreed well with those of the CPT-based methods proposed by Baligh and Levadoux (1986). The values of $C_{h,NC}$ and $k_{h,OC}$ were in the range of $0.4{sim}3.0;cm^2/sec$ and $0.40{sim}2.50;cm^2/sec$, each of which slightly increases or decreases with depth, respectively. It was also inferred that these trends seem to reflect the depositional environments of the clay. |
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| Ű¿öµå |
| Clay;Consolidation;Dissipation test;Laboratory test;Permeability; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.26, no.11, 2010³â, pp.47-61
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201012259056437)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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