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Çѱ¹Áö¹Ý°øÇÐȸ / v.22, no.5, 2006³â, pp.69-81
Á¶¹ÐÇÑ ¸ð·¡Áö¹ÝÀÇ ±âÃÊ ÀÎÁ¢¿¡ ¼³Ä¡µÈ ¸¶ÀÌÅ©·ÎÆÄÀÏ º¸°­È¿°ú¿¡ °üÇÑ ½ÇÇèÀû ¿¬±¸
( An Experimental Study on the Reinforcement Effect of Installed Micropiles in the Surround of Footing on Dense Sand )
ÀÌÅÂÇü;ÀÓÁ¾Ã¶; Çѱ¹½Ã¼³¾ÈÀü±â¼ú°ø´Ü ÁöÇϽü³½Ç;ºÎ»ê´ëÇб³ Åä¸ñ°øÇаú;
 
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Á÷°æ $150sim300mm$ Á¤µµÀÇ º¸¸µ°ø¿¡ °­ºÀ ¶Ç´Â °­°üÀ» »ðÀÔÇÏ¿© ±×¶ó¿ìÆÃ Àç·á·Î ÁÖÀÔ ¾Ð·ÂÀ» °¡ÇÏ´Â ¼Ò±¸°æ ÇöÀå Ÿ¼³ ¸»¶ÒÀÇ ÀÏÁ¾ÀÎ ¸¶ÀÌÅ©·ÎÆÄÀÏ °ø¹ýÀº ±â°èÀÇ ¼ÒÇüÈ­, ÀúÁøµ¿, Àú¼ÒÀ½ µîÀÇ ÀåÁ¡À¸·Î µµ½ÉÁöÀÇ Çù¼ÒÇÑ °ø°£¿¡¼­ÀÇ Àû¿ë ¹üÀ§°¡ Á¡Â÷ È®´ëµÇ°í ÀÖ´Ù. ¸¶ÀÌÅ©·ÎÆÄÀÏÀº ÁöÁö·Â Áõ°¡, Áö¹Ý º¯À§¾ïÁ¦¸¦ ÅëÇÑ ±¸Á¶¹° ¾ÈÁ¤¼º È®º¸ µî¿¡ ÁÖ·Î Àû¿ëµÇ¾îÁ® ¿Ô°í, ÇâÈÄ °ø¹ýÀÇ À¯È¿¼º°ú ÀáÀ缺À¸·Î ´Ù¾çÇÑ ¹æ¸é¿¡ Ȱ¿ëµÉ °ÍÀ¸·Î ¿¹»óµÈ´Ù. º» ¿¬±¸¿¡¼­´Â ¸¶ÀÌÅ©·Î ÆÄÀϰú Áö¹Ý°úÀÇ »óÈ£ÀÛ¿ë¿¡ ÃÊÁ¡À» µÎ°í ±âÃÊÀÇ ÀÎÁ¢Áö¹Ý(Áö¹Ýº¸°­ °³³ä) º¸°­À» ½Ç½ÃÇÏ¿´À¸¸ç, ½ÇÇè °á°ú ¹× Áö¹Ýº¯Çü ºÐ¼®À» ÅëÇØ¼­ º¸°­ È¿°ú(ÁöÁö·Â Áõ°¡È¿°ú ¹× ħÇϾïÁ¦ È¿°ú)¸¦ Á¤¼ºÀû Á¤·®ÀûÀ¸·Î ºÐ¼®ÇÏ¿© ¼³°è ¹× ½Ã°ø¿¡¼­ÀÇ È¿À²¼º°ú Àû¿ë¼ºÀ» ³ôÀ̰íÀÚ ÇÑ´Ù.
The micropile, which is a kind of the in-situ manufactured pile with small diameter of $150sim300mm$, is constructed by installing a steel bar or pipe and injecting grout into a borehole. The application fields of micropile are being gradually expanded in a limited space of down-town area, because the micropile has various advantages with low vibration and noise in method and compact size in machine, etc. Mostly, the micropile has been applied to secure the safety of structures, depending on the increment of bearing capacity and the restraint of displacement. The micropile is expected to be used in various fields due to its effectiveness and potentiality in the future. The model test, focused on the interaction between micropile and soil in this study, was carried out. The micropile is installed in a soil adjacent to footing (concept of 'soil reinforcement'). With the test results and soil deformation analysis, the reinforcement effect (relating to bearing capacity and settlement) was analysed in a qualitative and quantitative manner, respectively. Consequently, it is expected that we nay demonstrate the improvement of an efficiency and application in the design and construction of micropile.
 
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Footing;Interaction;Micropile;Model test;Reinforcement effect;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.22, no.5, 2006³â, pp.69-81
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200626813151329)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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