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Çѱ¹Áö¹Ý°øÇÐȸ / v.22, no.8, 2006³â, pp.13-24
Ãø¹æÀ¯µ¿ ¿¬¾àÁö¹Ý»ó ÆÄÀϽ½·¡ºê·Î º¸°­µÈ ±³´ëÀÇ ¾ÈÁ¤
( The Stability of Bridge Abutment Reinforced by Pile-slab on Soft Ground Undergoing Lateral Flow )
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¿¬¾àÁö¹Ý»ó¿¡¼­ ±³´ë µÞä¿òÀ¸·Î ÀÎÇÏ¿© Ãø¹æÀ̵¿ÀÌ ¹ß»ýµÈ ±³´ë¿¡ ´ëÇÏ¿© ÇöÀåÁ¶»ç¸¦ ¼öÇàÇÏ¿´´Ù. ±³´ëÃø¹æÀ̵¿ÀÇ ¿øÀÎÀ» ºÐ¼®ÇÑ °á°ú, ¼³°è½Ã ±³´ë±âÃʸ»¶ÒÀ» ¼öµ¿¸»¶ÒÀ¸·Î °í·ÁÇÏÁö ¾Ê°í, ¿¬¾àÁö¹Ý¿¡ ´ëÇÑ °³·®ÀÌ ÃæºÐÈ÷ ÀÌ·ç¾îÁöÁö ¾ÊÀº °ÍÀ¸·Î Á¶»çµÇ¾ú´Ù. ±³´ëÃø¹æÀ̵¿¿¡ ´ëÇÑ ´ëÃ¥°ø¹ýÀ¸·Î ÆÄÀϽ½·¡ºê °ø¹ýÀÌ Á¦¾ÈµÇ¾ú´Ù. ÀÌ °ø¹ýÀº ±³´ë¹è¸éÀÇ ¼ºÅäÇÏÁßÀ» ¸»¶ÒÀ» ÅëÇÏ¿© ÁöÁöÃþÀ¸·Î Àü´ÞÇÔÀ¸·Î½á ¿¬¾àÁö¹ÝÀÇ Ãø¹æÀ¯µ¿À» È¿°úÀûÀ¸·Î ¹æÁöÇÒ ¼ö ÀÖ´Ù. ¿¬¾àÁö¹Ý»ó ÆÄÀϽ½·¡ºê°ø¹ýÀ¸·Î º¸°­µÈ ±³´ëÀÇ °Åµ¿À» Á¶»çÇϱâ À§ÇÏ¿© ÇöÀå°èÃøÀ» ¼öÇàÇÏ¿´´Ù. ÇöÀå°èÃø°á°ú ÆÄÀϽ½·¡ºê°ø¹ýÀº ±³´ëµÞä¿òÀ¸·Î ÀÎÇÑ Ãø¹æÀ̵¿¿¡ ´ëÇÏ¿© È¿°úÀûÀ¸·Î ÀúÇ×ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç, µÞä¿òÀ¸·Î ÀÎÇÑ ¼ºÅäÇÏÁßÀº ¸»¶ÒÀ» ÅëÇÏ¿© ÁöÁöÃþÀ¸·Î Àü´ÞµÊÀ» ¾Ë ¼ö ÀÖ´Ù. À̸¦ ÅëÇÏ¿© ÆÄÀϽ½·¡ºê°ø¹ýÀÇ ±³´ëÃø¹æÀ̵¿¿¡ ´ëÇÑ ¾ïÁöÈ¿°ú¸¦ È®ÀÎÇÒ ¼ö ÀÖÀ¸¸ç, Àû¿ëµÈ ¼³°è¹ýÀÇ ÇÕ¸®¼ºÀ» °ËÁõÇÒ ¼ö ÀÖ´Ù.
A site investigation has been performed for bridge abutments constructed on soft ground, which are deformed laterally by backfill. As the result from the evaluation of lateral movement in bridge abutment, the foundation piles were not considered as the passive pile at the design stage and the period for soft ground improvement was not proper. In order to prevent lateral movement of bridge abutment, the pile slab is proposed as a countermeasure. This method can effectively prevent the lateral flow of soft ground, since the overburden surcharge due to backfill on soft ground would be effectively delivered to bedrock through the piles in soft ground. The instrumentation system is designed and installed to investigate the behavior of bridge abutment on soft ground reinforced by pile slab. The instrumentation results show that pile slab effectively resists to the lateral movement of bridge abutment due to backfill. Also, the surcharge loads due to backfill are transmitted to the bedrock through piles. It confirms that the pile slab effectively resists to the lateral movement of bridge abutment due to backfill and the applied design method is reasonable.
 
Ű¿öµå
Bridge abutment;Field measurement;Lateral flow;Pile-slab method;Soft ground;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.22, no.8, 2006³â, pp.13-24
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200634741580246)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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