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Çѱ¹Áö¹Ý°øÇÐȸ / v.22, no.5, 2006³â, pp.5-12
ÀúÅõ¼ö¼º Áö¹ÝÀÇ Àü´Ü°­µµ Áõ°¡¸¦ À§ÇÑ µ¿Àü±â ÁÖÀÔ ±â¹ýÀÇ Àû¿ë¼º
( Application of Electrokinetic Injection Method for Increasing Shear Strength of Low Permeable Soil )
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º» ¿¬±¸¿¡¼­´Â Á¡ÅäÁú Áö¹ÝÀÇ °­µµ¸¦ ÁõÁø½Ã۱â À§ÇØ, ÀÏ·ÃÀÇ µ¿Àü±â Çö»óÀ» ÀÌ¿ëÇÑ ÁÖÀÔ ½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. À̸¦ À§ÇØ ½Ç³» Bench scale ½ÇÇèÀ» ½Ç½ÃÇÏ¿© Àû¿ë¼ºÀ» ÆÄ¾ÇÇÏ¿´´Ù. ¶ÇÇÑ È®»êÀÇ ¿µÇâ¿¡ ÀÇÇÑ Áö¹Ý°³·®È¿°ú¸¦ ÆÄ¾ÇÇϱâ À§ÇØ ½ÇÇè Á¾·á ÈÄ 5ÀÏ °£°ÝÀ¸·Î 25ÀÏ µ¿¾È µ¥ÀÎ ½ÇÇèÀ» ½Ç½ÃÇÏ¿© °­µµÁõÁøÈ¿°ú¸¦ ÆÄ¾ÇÇÏ¿´À¸¸ç, 󸮱Ⱓ¿¡ µû¸¥ ¿µÇâÀ» °í·ÁÇϱâ À§ÇØ 5ÀÏ °£°Ý(5, 10, 15, 20, 25)À¸·Î 󸮱ⰣÀ» ¼³Á¤ÇÑ ÈÄ µ¿Àü±â ÁÖÀÔ ½ÇÇèÀ» ½Ç½ÃÇÏ¿´´Ù. ÁÖÀÔÁ¦ Á¾·ù¿¡ µû¸¥ ½ÇÇè°á°ú, Ãʱ⠰­µµÄ¡¿Í ºñ±³ÇÏ¿© ¾à $2sim7$¹è Á¤µµÀÇ °­µµÁõÁøÈ¿°ú°¡ ¹ß»ýÇÏ¿´À¸¸ç, ƯÈ÷ ¾ç±Ø¿¡ ±Ô»ê³ªÆ®·ýÀ» ÁÖÀÔÇϰí À½±Ø¿¡ ÀλêÀ» ÁÖÀÔÇÑ °æ¿ì ¾à 7¹è Á¤µµÀÇ °­µµÁõÁøÈ¿°ú°¡ ¹ß»ýÇÏ¿´´Ù. ¶ÇÇÑ È®»ê°ú ÇÔ¼öºñ °¨¼Ò¿¡ µû¸¥ °­µµ°ªÀ» ºÐ¼®Çغ» °á°ú ½Ã°£°æ°ú¿¡ µû¶ó °­µµ °ªÀÌ ÀÏÁ¤ÇÑ °ªÀ¸·Î ¼ö·ÅÇÏ´Â ¾ç»óÀ» ¶ì¾úÀ¸¸ç, ÇÔ¼öºñ °¨¼Ò¿¡ ÀÇÇÑ °­µµ Áõ°¡Ä¡ º¸´Ù µ¿Àü±â ÁÖÀÔ°ú È®»ê¿¡ ÀÇÇÑ ¿µÇâÀ¸·Î ¹ß»ýµÇ´Â °­µµÁõ°¡Ä¡°¡ ¾à $700sim1000%$ ³ô°Ô ³ªÅ¸³µ´Ù. 󸮱Ⱓ¿¡ µû¸¥ ½ÇÇè°á°ú, 󸮱ⰣÀÌ Áõ°¡ÇÔ¿¡ µû¶ó µ¿Àü±â ÁÖÀÔ¿¡ ÀÇÇÑ °­µµÁõÁøÈ¿°ú°¡ Å©°Ô ³ªÅ¸³µÀ¸¸ç, ÇÔ¼öºñ °¨¼Ò¿¡ ÀÇÇÑ °­µµÁõ°¡Ä¡º¸´Ù ´ë·« $3sim4$¹è Á¤µµ ³ô°Ô ³ªÅ¸³²À» ÆÄ¾ÇÇÒ ¼ö ÀÖ¾ú´Ù.
In this study a series of tests (bench scale test) are carried out for increasing the strength of clayey soil by EK-Injection method. In addition, the effects of strength increase in the treated sample are measured by operating the vane shear test device during 25 days at 5 days intervals in order to estimate the effect of ground improvement caused by diffusion. Also, the effects of strength increase in the treated sample are measured by operating the vane shear test device to estimate the effect by treatment durations (5, 10, 15, 20, 25). The test results show that the strength increase was developed approximately 2 to 7 times in comparison to initial shear strength, and outstanding strenfth increase was created as much as 7 times while injecting the sodium silicate and phosphoric acid in anolyte and catholyte. In addition, the measured shear strength with the influence of diffusion and reduction of water-content had a tendency to converge in constant value in proportion to elapsed time. As a result of this study, strength increment developed by the influence of EK-Injection and diffusion rather than the reduction of water-content was 1000% high on average. In case of changes of treatment duration, strength increment developed by the influence of treatment durations rather than the reduction of water-content was 3 to 4 times high on average.
 
Ű¿öµå
Clayey soils;Diffusion;Electrokinetic-injection;Injection material;Undrained strength;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.22, no.5, 2006³â, pp.5-12
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200626813151040)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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