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Çѱ¹Áö¹Ý°øÇÐȸ / v.20, no.3, 2004³â, pp.129-139
ÇöÀå¹ß»ýÅä CLSMÀ» ÀÌ¿ëÇÑ ÁöÇϸż³°üÀÇ º¯ÇüƯ¼º
( Deformation Characteristics of Underground Pipe with In-situ Soil CLSM )
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³»¿øÇüÁöÇϸż³°üÀÇ °æ¿ì °üÀÇ ÇϴܺÎÀÇ ´ÙÁüÀÌ ¸Å¿ì ¾î·Æ°í, ¶ÇÇÑ ´ÙÁüÈ¿À²ÀÌ ¶³¾îÁ®¼­ ÁöÇϸż³¹°ÀÇ ¾ÈÁ¤À» Àú°¨½Ã۰í, ÀÌ·Î ÀÎÇØ °¢Á¾ ÆÄ¼ÕÀÌ ¹ß»ýÇÏ´Â ¹®Á¦Á¡À» °¡Áö°í ÀÖ´Ù. ÀÌ·¯ÇÑ ¹®Á¦Á¡À» ÇØ°áÇÒ ¼ö ÀÖ´Â ÇϳªÀÇ ´ë¾ÈÀ¸·Î Àú°­µµ ÄÜÅ©¸®Æ® °³³äÀ» Áö¹Ý°øÇп¡ Àû¿ëÇÏ¿© ¸¸µé¾îÁø À¯µ¿¼º ä¿òÀ縦 ÀÌ¿ëÇÏ´Â °ÍÀÌ´Ù. º» ¿¬±¸¿¡¼­´Â °°Àº Á¶°Ç¿¡¼­ µÚä¿òÀç(ÀϹݸð·¡, ¹æ½Ä»ç CLSM, ÇöÀå¹ß»ýÅä»ç CLSM)ÀÇ Á¾·ù¸¦ º¯È­½ÃŲ 3°¡Áö »ç·Ê¿¡ ´ëÇÑ ½Ç³»¸ðÇü½ÇÇè°ú PENTAGON-3D À¯ÇÑ¿ä¼Ò ÇÁ·Î±×·¥À» ÀÌ¿ëÇÏ¿© ¼öÄ¡ÇØ¼®À» ½Ç½ÃÇÏ¿´´Ù. ½Ç³»¸ðÇü½ÇÇè°ú ¼öÄ¡ÇØ¼®À» ½Ç½ÃÇÑ °á°ú µÚä¿òÀç·Î À¯µ¿¼º ä¿òÀ縦 »ç¿ëÇÏ´Â °æ¿ì¿¡ ÀϹݸ𷡸¦ »ç¿ëÇÑ °æ¿ìº¸´Ù °üÀÇ ¼öÁ÷¤ý¼öÆòº¯À§ ¹× ÁöÇ¥¸éº¯À§¸¦ °¨¼Ò½ÃŰ´Â °ÍÀ¸·Î Æò°¡µÇ¾ú´Ù. ÀÌ´Â À¯µ¿¼º ä¿òÀçÀÇ Æ¯Â¡ Áß Ãʱâ À¯µ¿¼º°ú ÀڱⰭµµ¹ßÇöƯ¼º¿¡ ÀÇÇØ ¾ç»ýÀÌ ÁøÇàµÊ¿¡ µû¶ó ÆÄÇü°­°ü ÁÖº¯ÀÇ À¯µ¿¼º ä¿ò°è°¡ ±»¾î °­¼ºÈ­µÇ°í, À̰ÍÀÌ ÆÄÇü°­°ü°úÀÇ ÀÏüȭ¸¦ ÅëÇÑ, ÆÄÇü°­°üÀÇ ´Ü¸é°­µµ¸¦ ÁõÁø½ÃÄÑÁØ È¿°ú·Î ÇØ¼®ÇÒ ¼ö ÀÖ´Ù. ±×¸®°í µÚä¿òÀçÀÇ Á¾·ù¿¡ µû¸¥ ÆÄÇü°­°üÀÇ Åä¾ÐƯ¼ºÀº µÚä¿òÀç·Î ÀÏ¹Ý ¸ð·¡¸¦ ´ëüÇÏ¿© À¯µ¿¼º ä¿òÀ縦 »ç¿ëÇÑ °æ¿ì¿¡ °ü¿¡ ÀÛ¿ëÇÏ´Â ¼öÁ÷¤ý¼öÆòÅä¾ÐÀÌ °ÅÀÇ 0¿¡ °¡±î¿î °ªÀ¸·Î ÇöÀúÈ÷ ÀÛ¾ÆÁüÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ÀÌ´Â ½Ç³»¸ðÇü½ÇÇè°ú ¼öÄ¡ÇØ¼®°á°ú·ÎºÎÅÍ µÚä¿òÀç·Î À¯µ¿¼º ä¿òÀ縦 »ç¿ëÇÏ´Â °ÍÀÌ ÁöÇϸż³°ü¿¡ ¹ß»ýÇÏ´Â °¢Á¾ ÆÄ¼ÕÀ» °¨¼Ò½Ã۰í, ¾ÈÁ¤¼ºÀ» ³ôÀÌ´Â ÃÖ¼±ÀÇ ´ë¾ÈÀ¸·Î ÆÇ´ÜµÈ´Ù.
During the construction of circular underground pipe, the non-proper compaction along the pipe and the decrease of compaction efficiency have been the main problems to induce the failure of underground pipe or facility. The use of CLSM (controlled low strength materials) should be one of the possible applications to overcome those problems. In this research, the small-scaled model test and the numeric analysis using PENTAGON-3D FEM program were carried out for three different cases on the change of backfill materials, including the common sand, the soil from construction site, and the CLSM.. From the model test in the lab, it was found out that the use of CLSM as backfill materials reduced the vertical and lateral deformation of the pipe, as well as the deformation of the gound surface. The main reason for reducing the deformation would be the characteristics of the CLSM, especially self-leveling and self-hardening properties. The measured earth pressure at the surround of the corrugated pipe using the CLSM backfills was smaller than those in the other cases, and the absolute value was almost zero. Judging from the small-scaled model test and FEM analysis, the use of CLSM as backfill materials should be one of the best choices reducing failure of the underground pipes.
 
Ű¿öµå
Backfill materials;CLSM;Numeric analysis;Small - scaled model test;Underground pipe or facility;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.20, no.3, 2004³â, pp.129-139
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200411922341663)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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