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Çѱ¹Áö¹Ý°øÇÐȸ / v.21, no.10, 2005³â, pp.123-131
³ª¼±Çü ¾ÞÄ¿ÀÇ ½Ç³»Àι߽ÃÇèÀ» ÀÌ¿ëÇÑ ¹«¸®È¿°ú Æò°¡±â¹ý
( The Method of Estimating Group Effect with Small Pull-out Tests of Screw Anchors )
¹Ú½Ã»ï;ÀÌÇü±Ô; GS°Ç¼³(ÁÖ) ±â¼úº»ºÎ ÅäÁú¹×±âÃÊÆÀ;¼­ÀÏ´ëÇÐ Åä¸ñ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â ¾ç¾Ð·ÂÀ» ¹Þ´Â ±âÃʱ¸Á¶¹°ÀÇ º¸°­°ø¹ýÀ¸·Î ¾ÞÄ¿¸¦ ½Ã°øÇÒ °æ¿ì, ÀÌ¿¡ ´ëÇÑ ÆÄ±«¸ÞÄ«´ÏÁò ¹× ¾ÈÁ¤Çؼ®¹ýÀÇ °³¹ß¿¡ ±âÃÊÀûÀÎ ÀڷḦ Á¦°øÇϱâ À§ÇØ ³ª¼±Çü ¾ÞÄ¿¿¡ ´ëÇÑ ½Ç³»Àι߽ÃÇè ¹× À¯ÇÑ¿ä¼ÒÇØ¼®À» ¼öÇàÇÏ¿´´Ù. ½Ç³»Àι߽ÃÇèÀº °­¿ì½Ã ÁöÇϼöÀ§ »ó½ÂÀ¸·Î ÀÎÇØ ±âÃʱ¸Á¶¹°¿¡ ¾ç¾Ð·ÂÀÌ ÀÛ¿ëÇÏ´Â °æ¿ì¸¦ °í·ÁÇϱâ À§ÇØ Æ÷È­»çÁúÅä ³»¿¡¼­ÀÇ ÇÏÁß-º¯À§Æ¯¼ºÀ» ºÐ¼®ÇÑ ÈÄ, À̸¦ °ÇÁ¶½ÃÀÇ °æ¿ì µî¿¡ ´ëÇØ À¯ÇÑ¿ä¼Ò ÇØ¼®°á°ú¿Í ºñ±³${cdot}$ºÐ¼®ÇÏ¿´À¸¸ç, ¾ÞÄ¿ÀÇ ±ØÇÑÀιßÀúÇ׷¿¡ ¹ÌÄ¡´Â ¿µÇâÀÎÀÚ ¹× ¾ÞÄ¿ÀÇ Àι߿¡ µû¸¥ °Åµ¿Æ¯¼º µîÀ» Æò°¡ÇÏ¿´´Ù. ¶ÇÇÑ, ±ºÇüÅ ¾ÞÄ¿ÀÇ ¼³Ä¡°£°ÝÀ» º¯È­½ÃÄѰ¡¸é¼­ ÇÏÁß-Àιߺ¯À§ Ư¼ºÀ» ºñ±³ÇÑ ÈÄ, ³ª¼±Çü ¾ÞÄ¿ÀÇ ¹«¸®È¿°ú¿¡ ÀÇÇÑ °£¼·¿µÇâ ¿äÀÎÀ» ºÐ¼®ÇÏ¿´´Ù.
In the present study, laboratory pull-out tests with screw anchors are carried out to investigate behavior characteristics of the anchors used in foundation system of underground structures which are applied to uplifting seepage forces. Small scaled pull-out tests in sand under saturated condition and dry condition were carried out. For estimating the group effects of the anchors, the upward displacement and the pullout load varied with spacing of the anchor were observed. The test results were compared with theoretical equation for the ultimate pull-out force. Also, the result of tests can be used to the finite element analysis program, $PENTAGON^{2D}$.
 
Ű¿öµå
Group effect;Laboratory pull-out test;Screw anchor;Uplift seepage force;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.21, no.10, 2005³â, pp.123-131
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200509408735103)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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