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Çѱ¹Áö¹Ý°øÇÐȸ / v.25, no.9, 2009³â, pp.19-27
LÇü ¿Ëº®ÀÇ µ¿»ó´ëÃ¥¿¡ À־ ġȯ°ø¹ýÀÇ ¼³°è
( Design of Replacement Method on Anti-freeze Process of L Type Retaining Wells )
¿¹´ëÈ£;±è¿µ¼ö;¿µ¸ñÈÖÁö; Áß±¹Çϳ²À̰ø´ëÇÐÅä¸ñ°øÁ¤Çпø;°æºÏ´ëÇб³ Åä¸ñ°øÇаú;ÀϺ»±âŸ¹Ì°ø¾÷´ëÇÐ Åä¸ñ°øÇаú;
 
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ÀϺ»ºÏÇØµµ¿¡ À§Ä¡ÇÏ´Â ±âŸ¹Ì±¹¸³°ø¾÷´ëÇÐ ¾ß¿Üµ¿»ó½ÇÇèÀå¿¡¼­ ÇÁ¸®Ä³½ºÆ® ÄÜÅ©¸®Æ® LÇü ¿Ëº®ÀÇ µ¿»ó´ëÃ¥À» °ËÅäÇÏ¿´´Ù. ¼³Ä¡µÈ ½ÇÇè¿Ëº®Àº ´ÙÀ½ÀÇ 3±¸°£À¸·Î ±¸¼ºµÇ¾ú´Ù. i) µ¿»ó´ëÃ¥À» ½Ç½ÃÇÏÁö ¾ÊÀº ±¸°£(µ¿»óÀ» ÀÏÀ¸Å°±â ½¬¿î ÈëÀ¸·Î µÞä¿òÇÔ), ii) ´Ü¿­°ø¹ýÀ» ½Ç½ÃÇÑ ±¸°£(¿Ëº®¹è¸é¿¡ ¹ßÆ÷½ºÆ¼·Ñ ´Ü¿­À縦 ¼³Ä¡ÇÔ), iii)ġȯ°ø¹ý´ëÃ¥À» ½Ç½ÃÇÑ ±¸°£(µ¿»óÀ» ÀÏÀ¸Å°±â ¾î·Á¿î È­»êÀç·Î µÞä¿òÇÔ). ¼¼ ¹øÀÇ Áö¹Ýµ¿°á-À¶Çر⠵¿¾ÈÀÇ µÞä¿ò Èë ¼ÓÀÇ µ¿°á¸éºÐÆ÷, ÁöÁ߿µµ, ¿Ëº®º®Ã¼ÀÇ º¯À§¸¦ °èÃøÇÏ¿© µ¿°áÅä¾ÐÀÇ ¹ß»ý¸ÞÄ¿´ÏÁòÀ» ºÐ¼®ÇÏ¿´°í, ´Ü¿­°ø¹ý°ú ġȯ°ø¹ýÀÇ À¯È¿¼ºÀ» È®ÀÎÇÏ¿´´Ù. ±×¸®°í ¼öÄ¡ÇØ¼®À» ÀÌ¿ëÇÏ¿© °¢Á¾ ´Ü¸éÇü»óÀÇ LÇü ¿Ëº®ÀÇ µÞä¿ò Èë ¼ÓÀÇ µ¿°á¸éÇü»óÀ» ÃßÁ¤ÇÏ¿´°í, ±× ÇØ¼®°á°ú¸¦ ÅëÇÏ¿© ºñµ¿»ó¼º µÚä¿ò Àç·á·Î¼­ ġȯÇÏ´Â ÀûÀýÇÑ Ä¡È¯¹üÀ§ÀÇ °áÁ¤¹æ¹ýÀ» Á¦¾ÈÇÏ¿´´Ù.
In order to investigate anti-freeze process of precast concrete L-type retaining walls in cold regions, test walls were installed in the campus of Kitami Institute of Technology (KIT, Hokkaido, Japan). The wall consists of following three sections, i) back filled with frost susceptible clay soil, ii) using thermal insulation material, and back filled with frost susceptible soil, iii) back filled with frost-unsusceptible soil. The freezing front distribution and ground temperature within the backfill were observed and deflections of the walls were measured over three freeze-thaw seasons. Some understanding of the mechanisms of the build-up of frost heave pressure was gained, and the effectiveness of replacement method was observed. A simulation was performed to predict the shape of the freezing front in the backfill behind L-type walls with various cross sections. These findings were employed to propose a method for determining the appropriate zone to be replaced with frost unsusceptible backfill material in cold regions.
 
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Freezing front shape;Frost heaving pressure;L Type retaining walls;Numerical simulation;Replacement zone;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.25, no.9, 2009³â, pp.19-27
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200934939599696)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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