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Çѱ¹Áö¹Ý°øÇÐȸ / v.27, no.3, 2011³â, pp.55-61
ÇÏõÁ¦¹æ ¹è¼öÅë¹®ÀÇ ÀúÆÇÈ®ÆøÀ» ÅëÇÑ °øµ¿¹ß»ý ¾ïÁ¦±â¹ý ¿¬±¸
( An Experimental Study on Suppression of Cavity Development by Enlargement of Base Plate of Box-Culvert Installed at River Levee )
±èÁø¸¸;ÃÖºÀÇõ;À̴뿵;Áø¿µÁö; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø Áö¹Ý¿¬±¸½Ç;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø Áö¹Ý¿¬±¸½Ç;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø Áö¹Ý¿¬±¸½Ç;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø Áö¹Ý¿¬±¸½Ç;
 
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ÀϹÝÀûÀ¸·Î ÇÏõÁ¦¹æ ¹è¼öÅë¹®Àº ´Ù¾çÇÑ ¿øÀο¡ ÀÇÇÏ¿© ºØ±«°¡ ¹ß»ýÇϸç, ƯÈ÷ ¿¬¾àÁö¹Ý »ó¿¡ ¸»¶Ò±âÃʸ¦ ÀÌ¿ëÇÏ¿© ¼³Ä¡µÈ °æ¿ì 1) ÁÖº¯ Áö¹Ý(¿ÜºÎÅäü)/¸»¶Ò±âÃÊ Ã³¸®µÈ ¾Ï°Å »ó´Ü(³»ºÎÅäü)ÀÇ »ó´ëÀû ħÇÏ Â÷¿¡ ÀÇÇÑ ¹è¼öÅë¹® ¾Ï°Å Ãøº®ºÎÀÇ ´ÙÁüµµ ¾àÈ­, 2) ÇÏÀ̵å·Î¸¯ Ç÷¢Ã³¸µ¿¡ ÀÇÇÑ È«¼ö ½Ã ħÅõ¼ö¾ÐÀÇ Áö¼ÓÀû ¹Ýº¹¿¡ ÀÇÇÑ Ãøº®ºÎ ±³¶õ µî¿¡ ÀÇÇØ ºØ±«°¡ ¹ß»ýÇÑ´Ù. ƯÈ÷ Ãøº®ºÎ´Â ½Ã°ø¿©°Ç»ó ´ÙÁüÀåºñÀÇ Á¢±ÙÀÌ ¾î·Á¿î ´ÙÁü Ãë¾àºÎÀ̰í, ÀÌÁúÀç·á¿¡ ÀÇÇÑ ¸¶Âû·Â °¨¼Ò·Î Àü´ÜÀúÇ×·ÂÀÌ ÀÏ¹Ý ÈëÀÇ Àü´Ü°­µµ¿¡ ºñÇØ 1/3 ÀÌ»ó °¨¼ÒÇÏ¿© ¹ßÇöµÈ´Ù. ÀÌ¿¡ º» ¿¬±¸¿¡¼­´Â ÁÖº¯ Áö¹Ý¿¡ ÀÎÀ§ÀûÀÎ º¯ÇüÀ» ¹ß»ý½ÃŰ´Â ¹æ¹ýÀ¸·Î ħÇϸ¦ ¸ð»çÇÑ ½Ç³» ¸ðÇü½ÇÇèÀ» ÅëÇÏ¿© ¿¬¾àÁö¹Ý »ó ¸»¶Ò ±âÃÊµÈ ¹è¼öÅë¹® ¾Ï°ÅÀÇ »ó´ëÀû ħÇÏ¿¡ µû¸¥ ¿ÜºÎÅäü/³»ºÎÅäü ¹ßÇö ¸ÞÄ«´ÏÁò°ú ÀúÆÇÈ®Æø¿¡ µû¸¥ ¹è¼öÅë¹® ¾Ï°Å Ãøº®ºÎ ´ÙÁüµµ Çâ»ó È¿°ú¸¦ ºñ±³ ºÐ¼®ÇÔÀ¸·Î½á ¹è¼öÅë¹® ÀúÆÇ È®ÆøÀ» ÅëÇÑ ÁÖº¯Áö¹Ý °øµ¿ È®Àå ¾ïÁ¦±â¹ýÀ» Á¦½ÃÇÏ¿´´Ù.
Generally, the Box-Culvert in levee is destroyed by various reasons. Especially when Box-Culvert is installed over the pile foundation in soft ground, the failure occurrs for 1) the weakness of compaction in Box-Culvert side by the differential settlement between outer ground and inner soil prism, 2) hydraulic fracturing and disturbance of Box-Culvert side soil by the repeated acting of seepage pressure at flood time. Also the side of Box-Culvert is difficult to compact and the shear resistance is reduced by more than 1/3 for the reduction of friction caused by the difference of material property. In this study, a series of model tests are conducted for the analysis of the development mechanism of outer ground and inner soil prism by the differential settlement using the pile foundation in soft ground, and cavity suppressed technique is suggested by the analysis of base plate enlargement effect.
 
Ű¿öµå
Levee;Box-culvert;Cavity;Model test;Settlement;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.27, no.3, 2011³â, pp.55-61
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201117148819492)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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