|
|
|
Çѱ¹Áö¹Ý°øÇÐȸ / v.20, no.9, 2004³â, pp.167-176
|
µÇ¸Þ¿ò °ø°£ÀÇ »óÀçÇÏÁß ¿µÇâÆò°¡¿¡ °üÇÑ ¿¬±¸
( Evaluation of Surcharge toads Acting in Backfilled Space ) |
| ¹®Ã¢¿;±èÈñµ¿;ÃÖÇå; »ïô´ëÇб³ Åä¸ñ°øÇаú;»ïô´ëÇб³ »ê¾÷´ëÇпø Åä¸ñ°øÇаú;»ïô´ëÇб³ Åä¸ñ°øÇаú;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| ÁöÁß¿¡ ¸Å¼³µÇ´Â ±¸Á¶¹°Àº ¸Å¼³µÈ ÈÄ ±³ÅëÇÏÁßµîÀÇ ¿ÜºÎÇÏÁßÀ» Ãß°¡·Î ºÎ´ãÇÏ°Ô µÈ´Ù. Terzaghi(1956) ´Â ¼öÁ÷ÇÏ°Ô Çü¼ºµÈ µÇ¸Þ¿ò »óÅÂÀÇ »óÀçÇÏÁß ¿µÇâÀ» »êÃâÇÏ´Â À̷нÄÀ» Á¦¾ÈÇÑ ¹Ù ÀÖ´Ù. ±×·¯³ª ÇöÀå¿¡¼´Â µÇ¸Þ¿ò °ø°£ ÇüŰ¡ ¼öÁ÷ÇϰԸ¸ Çü¼ºµÇÁö ¾ÊÀ¸¸ç, ¼öÁ÷ÇÏÁö ¾ÊÀº °ø°£À» ÃëÇÏ´Â °æ¿ì¿¡´Â ±× °æ°èÁ¶°ÇÀÌ ºÎÇÕµÇÁö ¾Ê¾Æ »ç¿ëÀÌ ÀûÇÕÇÏÁö ¾Ê´Ù. º» ¿¬±¸¿¡¼´Â µÇ¸Þ¿ò °ø°£ ÇüŰ¡ ´ëĪÀûÀ¸·Î °æ»çÁö¸ç µÇ¸Þ¿ò ÈÄ »óÀçÇÏÁßÀÌ ÀÛ¿ëµÉ °æ¿ì, »óÀçÇÏÁß¿¡ ÀÇÇÑ µÇ¸Þ¿ò °ø°£¿¡¼ÀÇ ÀÀ·ÂÀÇ Å©±â¸¦ »êÃâÇÏ´Â À̷нÄÀ» Á¦¾ÈÇÏ¿´´Ù. Á¦¾ÈµÈ À̷нÄÀº ½Ç³»¸ðÇü ź¼ÒºÀ½ÇÇè°ú ¼öÄ¡ÇØ¼®À» ¼öÇàÇÏ¿© À̸¦ °ËÁõÇϰíÀÚ ÇÏ¿´´Ù. ¿¬±¸°á°ú¿¡ µû¸£¸é Á¦¾ÈµÈ À̷нÄÀº ½ÇÇè°á°ú¿Í ¸Å¿ì À¯»çÇÑ °á°ú¸¦ ³ªÅ¸³ÂÀ¸³ª ¼öÄ¡ÇØ¼®°ú´Â ´Ù¼Ò »óÀÌÇÑ °á°ú¸¦ º¸¿´´Ù. À̴ ź¼ÒºÀÀ¸·Î Á¶¼ºÇÑ Áö¹ÝÀÌ ÇÏÁßÁõ°¡¿¡ µû¶ó ´Ù¼Ò Á¶¹ÐÇÏ¿©Áö¸é¼ ³»ºÎ¸¶Âû°¢ÀÇ Áõ°¡¿Í ÀÌ¿¡ µû¸¥ º®¸é ¸¶ÂûÀÇ Áõ°¡°¡ ¹ß»ýµÇ¾úÀ½¿¡ ºñÃß¾î ¼öÄ¡ÇØ¼®»ó¿¡´Â ¹Ý¿µµÉ ¼ö ¾ø´Â Á¡ÀÌ ±× Â÷À̸¦ ³ªÅ¸³»´Â °á°ú·Î »ç·áµÈ´Ù. µÇ¸Þ¿ò Áö¹ÝÀÌ °æ»çÁø °æ¿ì¿¡ ´ëÇÏ¿© Á¦¾ÈµÈ À̷нÄÀº ¼öÁ÷ÇÑ µÇ¸Þ¿ò °ø°£ÀÇ ÇüÅ¿¡ Àû¿ë½ÃÄ×À» °æ¿ì Terzaghi(1956)ÀÇ À̷нİú´Â µ¿ÀÏÇÑ °á°ú¸¦ ³ªÅ¸³Â´Ù. º» ¿¬±¸ÀÇ °á°ú¸¦ »ìÆìº¸¾ÒÀ» ¶§ Á¦¾ÈµÈ À̷нÄÀº Àû¿ëÀÌ °¡´ÉÇÑ °ÍÀ¸·Î »ç·áµÇ¸ç ¶ÇÇÑ ¼öÁ÷ÇÑ °ø°£¿¡ ´ëÇÑ Àû¿ë ¿ª½Ã °¡´ÉÇÑ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. ±×·¯³ª º» ¿¬±¸¿¡¼´Â ½Ç³»¸ðÇü ź¼ÒºÀ½ÇÇèÀ̹ǷΠ½Ç´ëÇü ½ÇÇèÀ» ÅëÇÑ °ËÁõÀÌ ¿ä±¸µÇ¾îÁø´Ù ÇϰڴÙ. |
|
| Underground structures will be affected by the additional surcharge loads such as traffic load et al. Terzaghi (1956) suggested the equation on the influences of surcharge loads in vertically backfilled spaces. In field, the shapes of backfill spaces are not always formed vertically. Then the Terzagi (1956) equation is not suitable to use because of boundary condition. This study suggests equation to calculate the stress in backfilled space caused by surcharge loads when the backfilled space is sloped symmetrically. The suggested equation is verified by carbon box test and numerical analysis. The experimental results show good agreement with the suggested equation but the numerical analysis result shows a little disagreement. The differences are estimated to be caused by the fact that ground made by carbon rod has become more dense and internal frction and wall friction has increased itself as surcharge load is added but that this increase can not be considered in the numerical analysis. The suggested equation shows good agreement with Terzaghi (1956) equation in case of sloped backfill ground. According to the results, it is considered that the suggested equation can be applied not only to sloped space but also to vertical space. Further investigation using full scale experiment is needed. |
| |
| Ű¿öµå |
| Surcharge Load;Backfilled Space;Numerical Analysis;Carbon Rod;Horizontal Stress; |
| |
|
|
 |
|
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.20, no.9, 2004³â, pp.167-176
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200430710459420)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|