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Çѱ¹Áö¹Ý°øÇÐȸ / v.18, no.4, 2002³â, pp.309-317
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Áؼ³Å並 ÀÌ¿ëÇÑ °æ·®±âÆ÷È¥ÇÕÅäÀÇ ¿ªÇÐÀû Ư¼º ¿¬±¸
( Mechanical Characteristics of Light-weighted Foam Soil Consisting of Dredged Soils ) |
| ±èÁÖö;ÀÌÁ¾±Ô; »ï¼º¹°»ê °Ç¼³ºÎ¹® Åä¸ñ±â¼úÆÀ;´Ü±¹´ëÇб³ Åä¸ñȯ°æ°øÇаú;
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| º» ³í¹®Àº °æ·®±âÆ÷È¥ÇÕÅä(LWFS)ÀÇ ¿ªÇÐÀû Ư¼º¿¡ ´ëÇÏ¿© ¿¬±¸ÇÏ¿´´Ù. °æ·®±âÆ÷È¥ÇÕÅä´Â ´ÜÀ§Áß·®ÀÇ °¨¼Ò¿Í ¾ÐÃà °µµÀÇ Áõ°¡¸¦ À§ÇÏ¿© ¿¬¾ÈÁؼ³Åä, °íÈÁ¦ ¹× ±âÆ÷¸¦ È¥ÇÕÇÏ¿© Á¦À۵Ǿú´Ù. ÃʱâÇÔ¼öºñ, °íÈÁ¦ ÇÔÀ¯À², ¾ç»ýÁ¶°Ç ¹× ±¸¼Ó¾Ð µî ´Ù¾çÇÑ Á¶°ÇÀ¸·Î °æ·®±âÆ÷È¥ÇÕÅ並 Á¦ÀÛÇÏ¿© ÀÏÃà ¹× »ïÃà¾ÐÃà½ÃÇèÀ» ½Ç½ÃÇÏ¿´´Ù. °æ·®±âÆ÷È¥ÇÕÅäÀÇ ½ÇÇè°á°ú´Â µ¿ÀÏÇÑ ´ÜÀ§Áß·®ÀÏ °æ¿ì ÀÀ·Â-º¯Çü °Åµ¿°ú ¾ÐÃà°µµ´Â Áؼ³ÅäÀÇ ÃʱâÇÔ¼öºñº¸´Ù °íÈÁ¦ ÇÔÀ¯À²¿¡ ´õ ¿µÇâÀ» ¹Þ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ÇÑÆí »ïÃà¾ÐÃà½ÃÇè¿¡¼ ÀÀ·Â-º¯Çü °ü°è´Â ¾ç»ýÁ¶°Ç¿¡ °ü°è¾øÀÌ º¯Çü-¿¬È°Åµ¿À» ³ªÅ¸³»¾ú´Ù. ±¸¼Ó¾Ð¿¡ µû¸¥ ÀÀ·Â-º¯Çü °Åµ¿Àº °æ·®±âÆ÷È¥ÇÕÅäÀÇ ÀÏÃà¾ÐÃà°µµ¿Í ±ÙÁ¢ÇÑ ±¸¼Ó¾ÐÀ» °æ°è·Î ´Ù¸£°Ô º¯ÈÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¾ÐÃà°µµ 200kPa ÀÌ»óÀ¸·Î Áö¹Ý°³·®À» Çϱâ À§ÇØ ¿ä±¸µÇ´Â °æ·®±âÆ÷È¥ÇÕÅäÀÇ ¹èÇÕºñ´Â Áؼ³ÅäÀÇ ÃʱâÇÔ¼öºñ 100%~160%¿Í °íÈÁ¦ ÇÔÀ¯À² 6.6%·Î ³ªÅ¸³µ´Ù. |
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| The mechanical characteristics of Light-Weighted Foam Soil(LWFS) are investigated in this research. LWFS is composed of the dredged soil from offshore, cement and foam to reduce the unit-weight and increase compressive strength. For this purpose, the unconfined compression tests and triaxial compression tests are carried out on the prepared specimens of LWFS with various conditions such as initial water contents, cement contents, curing conditions and confining stresses. The test results of LWFS indicated that the stress-strain relationship and the compressive strength are strongly influenced by the cement contents rather than the intial water contents of the dredged soils. On the other hand, the stress-strain relationship from triaxial compression test has shown strain-softening behavior regardless of curing conditions. The stress-strain behavior for the various confining stress exhibited remarkable change at the boundary where the confining stress approached to the unconfined compression strength of LWFS. In order to obtain the ground improvement of the compressive strength above 200kPa, the required LWFS mixing ratio is found to be 100%~160% of the initial water contents of dredged soil and 6.6% of cement contents. |
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| Ű¿öµå |
| Cement contents;Compressive strength;Dredged soils;Initial water contents;Light-weighted foam soil; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.18, no.4, 2002³â, pp.309-317
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921342179)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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