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Çѱ¹Áö¹Ý°øÇÐȸ / v.22, no.7, 2006³â, pp.37-44
Áö¿À±×¸®µå È¥ÇÕ º¸°­°æ·®ÅäÀÇ ¾ÐÃà°­µµÆ¯¼º ¿¬±¸
( Characteristics of Compressive Strength of Geogrid Mixing Reinforced Lightweight Soil )
±èÀ±ÅÂ;±Ç¿ë±Ô;±èÈ«ÁÖ; ºÎ°æ´ëÇб³ ÇØ¾ç°øÇаú;(ÁÖ) µµ´ãÀ̾ؾ¾;ºÎ°æ´ëÇб³ ÇØ¾ç°øÇаú;
 
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º» ¿¬±¸´Â Áö¿À±×¸®µå È¥ÇÕ º¸°­°æ·®ÅäÀÇ ÀÀ·Â-º¯Çü °Åµ¿°ú °­µµ Ư¼º¿¡ ´ëÇØ Á¶»çÇÏ¿´´Ù. °æ·®È¥ÇÕÅäÀÇ ¾ÐÃà°­µµ¸¦ ÁõÁøÇϱâ À§ÇØ °æ·®È¥ÇÕÅä¿¡ Áö¿À±×¸®µå¸¦ È¥ÇÕÇÏ¿´´Ù. ½ÃÇè °ø½Ãü´Â ´Ù¾çÇÑ Á¾·ùÀÇ ¹èÇÕÁ¶°Ç Áï, ½Ã¸àÆ® ÇÔÀ¯À², ÇÔ¼öºñ, ±âÆ÷ ÇÔÀ¯À²¿¡ µû¶ó¼­ °¢°¢ Á¦À۵ǾîÁ³°í, ¿©·¯¹øÀÇ ÀÏÃà¾ÐÃà°­µµ½ÃÇèÀÌ ¼öÇàµÇ¾ú´Ù. ½ÃÇè°á°ú·ÎºÎÅÍ, °æ·®È¥ÇÕÅäÀÇ ÀÏÃà¾ÐÃà°­µµ¿Í ÀÀ·Â-º¯Çü °Åµ¿Àº ¹èÇÕÁ¶°Ç¿¡ ÀÇÇØ Å« ¿µÇâÀ» ¹Þ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ½Ã¸àÆ® ÇÔÀ¯À²ÀÌ Áõ°¡µÊ¿¡ µû¶ó ÀÏÃà¾ÐÃà°­µµ ¶ÇÇÑ Áõ°¡ÇÑ´Ù. ±×·¯³ª Ãʱâ ÇÔ¼öºñ³ª ±âÆ÷ ÇÔÀ¯À²ÀÌ Áõ°¡ÇÔ¿¡ µû¶ó ÀÏÃà¾ÐÃà°­µµ´Â °¨¼ÒÇÏ¿´´Ù. °ÅÀÇ ¸ðµç °æ¿ì¿¡¼­ Áö¿À±×¸®µå¿¡ ÀÇÇÑ º¸°­ È¿°ú ¶§¹®¿¡ Áö¿À±×¸®µå º¸°­°æ·®ÅäÀÇ °­µµ°¡ Áõ°¡µÇ´Â °ÍÀÌ °üÂûµÇ¾ú´Ù. Áö¿À±×¸®µå È¥ÇÕ º¸°­°æ·®ÅäÀÇ ÀÀ·Â-º¯Çü·ü °ü°è´Â Ã뼺°Åµ¿À̶ó±â º¸´Ù´Â ¿¬¼ºÀûÀÎ °Åµ¿Æ¯¼ºÀ» °¡Á³´Ù. º¸°­°æ·®Åä¿¡¼­ ÇÒ¼± ź¼º°è¼ö ($E_{50}$)´Â Áö¿À±×¸®µå ÇÔÀ¯·Î ÀÎÇØ °­µµ°¡ Áõ°¡ÇÔ¿¡ µû¶ó Áõ°¡µÇ¾ú´Ù.
This paper investigates strength characteristics and stress-strain behaviors of geogrid mixing reinforced lightweight soil. The lightweight soil was reinforced with geogrid in order to increase its compressive strength. Test specimens were fabricated by various mixing conditions including cement content, initial water content, air content and geogrid layer and then unconfined compression tests were carried out. From the experimental results, it was found that unconfined compressive strength as well as stress-strain behavior of lightweight soil was strongly influenced by mixing conditions. The more cement content that is added to the mixture, the greater its unconfined compressive strength. However, the more initial water content or the more air foam content, the less its unconfined compressive strength. It was observed that the compressive strength of reinforced lightweight soil increased reinforcing effect by the geogrid for most cases. Stress-strain relation of geogrid mixing reinforced lightweight soil showed a ductile behavior rather than a brittle behavior. In reinforced lightweight soil, secant modulus ($E_{50}$) also increased as its compressive strength increased due to the inclusion of geogrid.
 
Ű¿öµå
Dredged soil;Geogrid;Reinforced lightweight soil;Unconfined compression test;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.22, no.7, 2006³â, pp.37-44
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200634515068078)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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