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Çѱ¹Áö¹Ý°øÇÐȸ / v.20, no.5, 2004³â, pp.87-98
½îÀÏ ³×ÀÏ(soil nail)·Î º¸°­µÈ ÇöÀ埼³¸»¶ÒÀÇ Àû¿ë¼º ¹× º¸°­È¿°ú ºÐ¼®
( Application and its Reinforcing Effect of Soil Nailed-drilled Shafts )
±èº´Ã¶;ÀÌ´ë¼ö;±è´ëÈ«;Á¤»ó¼¶;±è´ëÇÐ; ´ë¸²»ê¾÷(ÁÖ) ±â¼ú¿¬±¸¼Ò;Çѱ¹Àü·Â°ø»ç Àü·Â¿¬±¸;Çѱ¹Àü·Â°ø»ç Àü·Â¿¬±¸;¿¬¼¼´ëÇб³ Åä¸ñ°øÇÐ;À¯´ÏÄÜ ±â¼ú¿¬±¸¼Ò;
 
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º» ¿¬±¸¿¡¼­´Â ÇöÀ埼³¸»¶Ò¿¡ º¸°­À縦 Á¤Âø½ÃÅ´À¸·Î½á ÁÖº¯Áö¹ÝÀÇ °­¼ºÀ» ³ôÀÌ°í º¸°­ÀçÀÇ ÀúÇ׷¿¡ ÀÇÇØ ÁöÁö·ÂÀ» Çâ»ó½Ã۱â À§ÇÑ ¿¬±¸¸¦ ¼öÇàÇÏ¿´´Ù. º¸°­Çü ¹× ¹«º¸°­ ÇöÀ埼³¸»¶Ò¿¡ ´ëÇÏ¿© º¸°­È¿°ú¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â ÀÎÀÚµéÀÎ º¸°­ÀçÀÇ ´Ü¼ö, °æ»ç, ¹è¿­¿¡ µû¸¥ ÀÏ·ÃÀÇ ½Ç³»¸ðÇü½ÇÇè ¹× 3Â÷¿ø ¼öÄ¡ÇØ¼®À» ¼öÇàÇÏ¿´´Ù. ¶ÇÇÑ º¸°­È¿°úÀÇ °ËÁõ°ú ½ÇÁ¦ ÇöÀå¿¡¼­ÀÇ Àû¿ë¼ºÀ» ¾Ë¾Æº¸±â À§ÇÏ¿© ÇöÀåÀçÇϽÃÇèÀ» ¼öÇàÇÏ¿´´Ù. ½Ç³»¸ðÇü½ÇÇè ¹× ¼öÄ¡ÇØ¼® °á°ú, º¸°­Àç3´Ü, 8°³, 40$^{circ}$ °æ»çÀÇ ±³Â÷¹è¿­¿¡¼­ ÃÖÀûÀÇ º¸°­È¿°ú°¡ ¹ßÇöµÊÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. 1/8 ¸ðÇüÀçÇϽÇÇè¿¡¼­´Â ¾ÐÃà, Àιß, ¼öÆò ¸ðµÎ º¸°­Àç¿¡ ÀÇÇÑ ÁöÁö·Â Áõ°¡È¿°ú°¡ ³ªÅ¸³µÀ¸¸ç, º¯À§ 25mm¸¦ ±âÁØÀ¸·Î ¾ÐÃà ¹× ¼öÆò½ÇÇè¿¡¼­´Â 100% ÀÌ»óÀÇ º¸°­È¿°ú°¡ ³ªÅ¸³µ´Ù. ¶ÇÇÑ ¹«º¸°­ ÇöÀ埼³¸»¶ÒÀÇ ÇÏÁß ´Ü°è¿¡ µû¸¥ º¯À§¿Í Áָ鸶Âû·Â °ËÅä°á°ú, öž±âÃÊ¿Í °°Àº ´ë±Ô¸ð ÇöÀ埼³¸»¶Ò ¼³°è ½Ã »ç¿ëµÇ´Â Áָ鸶Âû·Â °ªÀΠdzȭ¾Ï 10t/$ extrm{m}^2$, ¿¬¾Ï 15t/$ extrm{m}^2$ º¸´Ù Å« Áָ鸶Âû·Â °ªÀ» ¾òÀ» ¼ö ÀÖ¾ú´Ù. 1/2 ¸ðÇüÀçÇϽÇÇè¿¡¼­´Â ¾à 25mÀÇ º¯À§°¡ ¹ß»ýÇÏ¿´À» ¶§ ÀιßÇÏÁß 650ton¿¡¼­ ÆÄ±«°¡ ÀϾÀ¸¸ç, ¾à 22%ÀÇ º¸°­Àç¿¡ ÀÇÇÑ ÁöÁö·Â Áõ°¡È¿°ú°¡ ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
In this study reinforcing effect of soil nailed-drilled shafts subjected to axial and lateral loads was evaluated. Special attention was given to the reinforcing effects of soil nails placed from the drilled shafts to surrounding weathered- and soft-rocks based on model tests, numerical analyses and field tests. The model tests and numerical analyses are conducted to analyze the reinforcing effect of various conditions of number, inclination, position and length. The results of 1/40 scale model tests and numerical analyses show that as the number of reinforcing level increases, the incremental effect of reinforcement tends to increase, whereas the reinforcing effect on relative position is negligible. In addition there is a reinforcing effect as the inclination angle increase up to 30 degrees. Based on the results of tensile load tests, soil nailed-drilled shaft has a considerably smaller settlement to reach the ultimate level compared with the result of un-reinforced drilled shafts. For compression tests, there is a reinforcing effect of about 200% measured.
 
Ű¿öµå
Field test;Model test;Numerical analysis;Reinforcing effect;Soil nailed-drilled shatfs;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.20, no.5, 2004³â, pp.87-98
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200411922462121)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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