¶óÆæÆ®¦¢Ä«Æä¦¢ºí·Î±×¦¢´õº¸±â
¾ÆÄ«µ¥¹Ì Ȩ ¸í»çƯ°­ ´ëÇבּ¸½Ç޹æ Á¶°æ½Ç¹« µ¿¿µ»ó°­ÀÇ Çѱ¹ÀÇ ÀüÅëÁ¤¿ø ÇÐȸº° ³í¹®
ÇÐȸº° ³í¹®

Çѱ¹°Ç¼³°ü¸®ÇÐȸ
Çѱ¹°ÇÃà½Ã°øÇÐȸ
Çѱ¹µµ·ÎÇÐȸ
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
Çѱ¹»ýÅÂÇÐȸ
Çѱ¹¼öÀÚ¿øÇÐȸ
Çѱ¹½Ä¹°ÇÐȸ
Çѱ¹½Ç³»µðÀÚÀÎÇÐȸ
Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ
Çѱ¹ÀܵðÇÐȸ
Çѱ¹Á¶°æÇÐȸ
Çѱ¹Áö¹Ý°øÇÐȸ
Çѱ¹ÇÏõȣ¼öÇÐȸ
Çѱ¹È¯°æ»ý¹°ÇÐȸ
Çѱ¹È¯°æ»ýÅÂÇÐȸ

Çѱ¹Áö¹Ý°øÇÐȸ / v.18, no.4, 2002³â, pp.21-32
Ãæ°Ý¹ÝÇâ±â¹ýÀ» ÀÌ¿ëÇÑ ¾Ï¹Ý±ÙÀÔ ÇöÀ埼³¸»¶ÒÀÇ ¼±´ÜÁ¶°Ç Æò°¡
( Assessment of End Condition of Drilled Shafts Socketed into Rock by Impact Echo Test )
±èÇü¿ì;±èµ¿¼ö;±è¿øÃ¶; Çѱ¹°úÇбâ¼ú¿ø °Ç¼³ ¹× ȯ°æ°øÇаú;Çѱ¹°úÇбâ¼ú¿ø °Ç¼³ ¹× ȯ°æ°øÇаú;ÇѾç´ëÇб³;
 
ÃÊ ·Ï
¸»¶Ò ¼±´Ü Á¶°Ç¿¡ µû¸¥ Ãæ°Ý¹ÝÇâ±â¹ýÀÇ ½Ã°£¿µ¿ª ½ÅÈ£¸¦ ½Ç³» ¸ðÇü½ÇÇè¿¡ ÀÇÇÏ¿© ºÐ¼®ÇÏ¿´´Ù. ¼±´ÜÁ¶°ÇÀ¸·Î´Â ÀÚÀ¯´Ü, °íÁ¤´Ü, ¾Ï¹Ý ±ÙÀÔ, ¿¬¾à ¼±´ÜºÎÀÇ ³× °¡Áö Á¶°ÇÀ» °í·ÁÇÏ¿´À¸¸ç, À̸¦ À§ÇÏ¿© Æú¸®¿ì·¹Åº ÀçÁúÀÇ ¸ðÇü¸»¶Ò°ú ¸ð³ëij½ºÆ® ÀçÁúÀÇ ¸ðÇü¾Ï¹ÝÀ» Á¦ÀÛÇÏ¿© ½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. ½Ç³»½ÇÇè °á°ú °¢°¢ÀÇ °æ°èÁ¶°Ç¿¡ ´ëÇÑ ½ÅÈ£ÀÇ Æ¯¼ºÀ» ÆÄ¾ÇÇÒ ¼ö ÀÖ¾úÀ¸¸ç, ¸»¶Ò ¼±´Ü Á¶°Ç»Ó¸¸ ¾Æ´Ï¶ó ¸»¶Ò°ú ÁÖº¯ ¾Ï¹Ý°úÀÇ ºÎÂø»óŵµ ÃßÁ¤ÇÒ ¼ö ÀÖ´Â °¡´É¼ºÀ» È®ÀÎÇÏ¿´´Ù. ¶ÇÇÑ ½Ç³» ¸ðÇü½ÇÇèÀÇ °á°ú¸¦ °ËÁõÇϱâ À§ÇÏ¿© ÇöÀå½ÇÇèÀ» ¼öÇàÇÏ¿´À¸¸ç, ¾Ï¹Ý ±ÙÀÔ ¸»¶Ò¿¡ ´ëÇÑ ½ÅÈ£ ºÐ¼® °á°ú Ãæ°Ý¹ÝÇâ±â¹ý¿¡ ÀÇÇÑ ÇöÀ埼³¸»¶ÒÀÇ ºñÆÄ±« °ÇÀüµµ Æò°¡´Â Àû¿ë¼ºÀÌ ÃæºÐÈ÷ ÀÖ´Â °ÍÀ¸·Î ÆÄ¾ÇµÇ¾ú´Ù.
Small and full scale model tests were performed to obtain the transient responses of shafts subjected to elastic impact by impact-echo test. Four end conditions of drilled shafts were considered: (1) free, (2) fixed, (3) rock-socketed, and (4) soft bottom. In small scale model tests, mock-up shafts were fabricated to simulate these four drilled shafts using poly-urethane and plastic material. Additionally, skin frictions between shaft and rock were changed to find out the effect of side contact on dynamic responses. All impact responses were tested in the air. Subsequently, full scale model tests were also carried out on concrete shafts that were in free and rock-socketed condition. The end conditions of the drilled shafts could be identified with good reliability by the waveforms from both small and full scale model tests. The results obtained in this study will provide an improved understanding of the impact responses for end conditions, especially for rock-socketed drilled shafts that are frequently designed and built in Korea.
 
Ű¿öµå
Drilled shaft;End condition;Impact-echo test;Non-destructive test;Rock-socketed;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.18, no.4, 2002³â, pp.21-32
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921341900)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
¸ñ·Ïº¸±â
ȸ»ç¼Ò°³ ±¤°í¾È³» ÀÌ¿ë¾à°ü °³ÀÎÁ¤º¸Ãë±Þ¹æÄ§ Ã¥ÀÓÀÇ ÇѰè¿Í ¹ýÀû°íÁö À̸ÞÀÏÁÖ¼Ò ¹«´Ü¼öÁý °ÅºÎ °í°´¼¾ÅÍ
   

ÇÏÀ§¹è³ÊÀ̵¿