|
|
|
Çѱ¹Áö¹Ý°øÇÐȸ / v.20, no.6, 2004³â, pp.127-136
|
¾ÆÄªÈ¿°ú°¡ ÆòÇàÀ̵¿ÇÏ´Â °¼º¿Ëº®ÀÇ ¾ÈÁ¤¼º¿¡ ¹ÌÄ¡´Â ¿µÇâ
( Arching Effects on Stability of Translating Rigid Retaining Walls ) |
| ¹é±ÔÈ£; °üµ¿´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| °¼º¿Ëº®¿¡ ÀÛ¿ëÇÏ´Â ÁÖµ¿Åä¾ÐÀÇ Å©±â¿Í ºÐÆ÷ÇüÅ¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â ¾ÆÄªÈ¿°ú´Â ¿Ëº®ÀÇ ¾ÈÁ¤¼º°ú ¿Ëº® ´Ü¸éÀÇ °áÁ¤¿¡µµ ¿µÇâÀ» ¹ÌÄ¡°Ô µÈ´Ù. µû¶ó¼ º» ¿¬±¸¿¡¼´Â ÆòÇàÀ̵¿ÇÏ´Â °¼º¿Ëº®ÀÇ °æ¿ì¿¡ µÞä¿òÀç¿¡¼ ¹ß»ýÇÏ´Â ¾ÆÄªÈ¿°ú°¡ ¿Ëº®¿¡ ÀÛ¿ëÇÏ´Â Åä¾Ð°ú Àüµµ¸ð¸àÆ®, ¿Ëº®ÀÇ ¾ÈÁ¤¼º, ±×¸®°í ¿Ëº®ÀÇ ´Ü¸é¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ±Ô¸íÇϱâ À§ÇÏ¿© ¾ÆÄªÈ¿°ú¸¦ °í·ÁÇØ¼ Åä¾ÐÀ» »êÁ¤ÇÏ´Â ¹é(2003a)ÀÇ Á¦¾È½Ä°ú CoulombÀÇ Åä¾ÐÀÌ·ÐÀ¸·ÎºÎÅÍ ¾ò¾îÁø °á°úµéÀ» ¼·Î ºñ±³ÇÏ¿´´Ù. ¿¬±¸°á°ú $phi$¿Í $delta$ÀÇ Å©±â¿¡ °ü°è¾øÀÌ ¾ÆÄªÈ¿°ú¸¦ °í·ÁÇßÀ» ¶§ÀÇ ÁÖµ¿Åä¾ÐÀÌ Coulomb Åä¾Ðº¸´Ù ÄÇÀ¸¸ç, ¿Ëº®¿¡ ÀÛ¿ëÇÏ´Â Àüµµ¸ð¸àÆ®µµ ¾ÆÄªÈ¿°ú¸¦ °í·ÁÇßÀ» ¶§°¡ °í·ÁÇÏÁö ¾Ê¾ÒÀ» ¶§º¸´Ù Å« °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ±×¸®°í Åä¾Ð¿¡ ÀÇÇØ ¿Ëº®ÀÇ °¢ À§Ä¡¿¡ À¯¹ßµÇ´Â Àü´Ü·Â°ú ¸ð¸àÆ®À» ºñ±³ÇÑ °á°ú ¾ÆÄªÈ¿°ú¸¦ °í·ÁÇßÀ» ¶§ÀÇ Àü´Ü·Â°ú ¸ð¸àÆ®°¡ ¾ÆÄªÈ¿°ú¸¦ °í·ÁÇÏÁö ¾Ê¾ÒÀ» ¶§º¸´Ù ÄÇÀ¸¸ç, ¾ÆÄªÈ¿°úÀÇ °í·Á À¯¹«¿¡ µû¶ó ¿Ëº®¿¡ À¯¹ßµÇ´Â Àü´Ü·ÂÀÇ Â÷ÀÌ¿Í ¸ð¸àÆ®ÀÇ Â÷ÀÌ´Â ¿Ëº®ÀÇ Àú¸éÀ¸·ÎºÎÅÍ ¿Ëº® ³ôÀÌÀÇ 0.02-0.08¹èµÇ´Â À§Ä¡¿¡¼ ÃÖ´ë°¡ µÇ¾ú´Ù. µû¶ó¼ CoulombÀÇ Åä¾ÐÀ̷п¡ ±Ù°ÅÇØ¼ ÆòÇàÀ̵¿ÇÏ´Â °¼º¿Ëº®À» ¼³°èÇÏ¸é µÞä¿òÀç¿¡¼ ¹ß»ýÇÏ´Â ¾ÆÄªÈ¿°ú·Î ÀÎÇØ ¿Ëº®ÀÌ È°µ¿°ú ÀüµµÆÄ±«¿¡ ´ëÇÏ¿© ºÒ¾ÈÁ¤ÇÒ ¼ö ÀÖ´Ù. ±×¸®°í ¿Ëº®ÀÇ ´Ü¸éÀº ¿Ëº®¿¡ ÀÛ¿ëÇÏ´Â Àü´Ü·Â°ú ¸ð¸àÆ®¸¦ ÁöÁöÇϱ⿡ ÃæºÐÇÏÁö ¾ÊÀ» ¼ö ÀÖÀ¸¸ç, ÀÌ·¯ÇÑ ¿Ëº® ´Ü¸éÀÇ ºÎÁ·Àº ¿Ëº®ÀÇ »óºÎº¸´Ù´Â ÇϺο¡¼ ½É°¢ÇÏ°Ô µÈ´Ù. |
|
| The soil arching in the backfill, which affects the magnitude and distribution of active earth pressure on a retaining wall, has also an effect on the stability and cross-sectional area of the retaining wall. In this study, results obtained from Paik's equation that includes arching effect on active earth pressure are compared with those from Coulomb theory to investigate the influence of the soil arching on active earth pressure, overturning moment, stability and cross-sectional area of translating rigid retaining walls. The comparisons show that the active forces including arching effects are always higher than those from Coulomb theory, irrespective of $phi$ and $delta$ values. The overturning moments, shear force and moment on the rigid wall are also higher when considering arching effects than when not considering arching effects. The deviation of shear forces and moments by including and excluding arching effects becomes maximum at the height of 0.02-0.08 times wall height from the base of the wall. Therefore, if a translating rigid retaining walls is designed based on Coulomb theory, the wall may reach sliding and overturning failures due to arching effect in the backfill and the cross-sectional area of the wall, especially at lower part of the wall, may not be sufficient to resist to shear force and moment. |
| |
| Ű¿öµå |
| Arching effect;Stability;Theoretical analysis;Translating wall; |
| |
|
|
 |
|
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.20, no.6, 2004³â, pp.127-136
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200411922633894)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|