|
|
|
Çѱ¹Áö¹Ý°øÇÐȸ / v.5, no.1, 1989³â, pp.7-18
|
°üÀÔ¸»¶Ò¿¡ ´ëÇÑ ¿¬Á÷ÀçÇϽÃÇè½Ã Ç׺¹ÇÏÁßÀÇ ÆÇÁ¤¹ý
( Evaluation of Yield Load in Pile Load Tests on Driven Piles ) |
| È«¿øÇ¥;½É±â¼®; Á¤È¸¿ø, Áß¾Ó´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;Á¤È¸¿ø, ÇØ¿îÇ׸¸Ã» ±âȹ°ú, Á¤È¸¿ø, Á¦Ã¶¿£Áö´Ï¾î¸µ(ÁÖ) »ó¹«ÀÌ»ç, Á¤È¸¿ø, Çѱ¹Á¾ÇÕ±â¼ú°³¹ß°ø»ç Ç׸¸ºÎ, Á¤È¸¿ø, Áß¾Ó´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú Á¶±³;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| ¾Ï¹Ý¿¡ ÁöÁöµÈ ¼±´ÜÁöÁö¸Ã¶Ò¿¡ ´ëÇÑ ¿¬Á÷ÀçÇϽÃÇè½Ã, ±ØÇÑÇÏÁß¿¡ À̸£±â±îÁö ÀçÇϸ¦ ½Ç½ÃÇÏ´Â °ÍÀº ÀϹÝÀûÀ¸·Î ºÒ°¡´ÉÇÏ´Ù. ÀÌ·¯ÇÑ °æ¿ì ¸»¶ÒÀçÇϽÃÇè°á°ú·ÎºÎÅÍ ¼³°èÇÏÁßÀ» °áÁ¤Çϱâ À§ÇÏ¿© ºÀº¹ À±ÁßÀÇ °³³äÀÌ µµÀÔµÇ¾î ¿À°í ÀÖ´Ù. ±×·¯³ª, ÀÌ °º¹ÃÊÁßÀ» °áÁ¤ÇϱⰡ ¿ëÀÌÇÏÁö ¾ÊÀº °æ¿ì°¡ ¸¹´Ù. º» ³í¹®¿¡¼´Â ¿ì¸®³ª¶ó ¼ÇؾȰú ³²ÇØ¾È Áö´ë 6°³ ÇöÀå¿¡¼ ½Ç½ÃµÈ ¸»¶ÒÀçÇϽÃÇè°á°ú¸¦ °ËÅäºÐ ¼®ÇÏ¿© Ç׺¹ÇÏÁßÀ» ½±°Ô °áÁ¤ÇÒ ¼ö ÀÖ´Â »õ·Î¿î ¹æ¹ýÀ» Á¦¾ÈÇÏ¿´´Ù. ÀÌ ¹æ¹ý¿¡¼ °º¹ÇÏ´ëÀº ¸»¶ÒÀÇ Ä§ÇÏ·®À» ´ë¼ö´«±ÝÀ¸·Î, ÇÏÁßÀ» Á¤±Ô´«±ÝÀ¸·Î ÇÑ ¹Ý´ë¼öÀÀÁö»ó¿¡ Á¤¸®µÈ ÇÏÁß°ú ħÇÏ·® ü¼±(P- log¿µ»óÀÇ º¯°îÁ¡À¸·Î Á¤ÀǵǾú´Ù. ÀÌ ¹æ¹ý¿¡ ÀÇÇÑ °º¹¿¬µ¿º¸´Ù ¾à°£ ¸¹Àº ÇÏÁß±îÁö ÀçÇϽÃÇèÀ»½Ç ±âÇϹǷνá, ¸»¶ÒÀçÇϽÃÇèÀÇ ºñ¿ë°ú ½Ã°£À» Àý¾àÇÒ ¼ö ÀÖÀ» »Ó¸¸ ¾Æ´Ï¶ó ¾ÈÀüÇÑ ÀÛ¾÷Á¶°Çµµ ¸¶·ÃÇÒ ¼ö ÀÖ´Ù. ÀÌ °º¹ÇÏÁßÀº ÇÏÁß°ú ħÇÏ·® °Åµ¿ÀÇ Åº¼ºÇѰ踦 ±ÔÁ¤Áþ´Â ÇÏÁßÀÌ µÊÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. 25.4 mmħÇϽÃÀÇ ÇÏÁßÀ¸·Î °áÁ¤µÇ´Â ½ÄÇÑÇϵ¿Àº ÀÌ °º¹·ûÁßÀÇ 1.i¹è¿¡ ÇØ´çÇÏ¿´À¸¸ç Àå±â ¹× ´Ü±â Çã ¿ëÇÏÁßÀº °¢°¢ ÀÌ Ç׺¹ÇÏÁßÀÇ 50%¿Í 75%¿¡ ÇØ´çÇÏ¿´´Ù. ¶ÇÇÑ Á¤¿ªÇÐÀû ÁöÁö·Â°ø½ÄÀ» »ç¿ëÇÏ¿© Çã ¿ëÁöÁö·ÂÀ» ±¸ÇÒ °æ¿ì ¾ÈÀüÀ²Àº 2.0~4.0À¸·Î ¹àÇôÁ³´Ù. |
|
| In pile load tests on end bearing piles, generally, it is not possible to continue loading to the ultimate load. Thus, the concept of yield load has been introduced for determining design loads Iron the pile load test records. The conventional rules to determine the yield load were not available for evaluation on pile load test records obtained in 6 fields nearby westers 8r Southern Coasts in Korea. A new rule 9.as presented to determine easily the yield load, based on investigations on the pile load test records. The yield load of piles is determined at the infiection point on semi-logarithmic coordinates (P-logS), in which load is plotted in normal scale and settlement is plotted in logarithmic scale. This method may not only save much costs and times but also present safe luorking circumstances for pile load tests in field. It was found that the yield load represented the elastic limit of the pile load-settlement behalf.iota. The ultimate load, which is given at 25.4mm settlement on pile head, was 1.5 times of the yield load. The allowable long-term and short-term load capacities were, respectively, 50% and 75% of the yield load. The safety factors to get the allowable pile capacity were obtained as 2.0~4.0 for the equations to predict the static pile capacity. |
| |
| Ű¿öµå |
|
| |
|
|
 |
|
Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.5, no.1, 1989³â, pp.7-18
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO198911920443498)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|