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Çѱ¹Áö¹Ý°øÇÐȸ / v.15, no.3, 1999³â, pp.151-160

( Numerical Predictions of the Load-Displacement Curves of Rock-Socketed Concrete Piles )
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¾Ï¹Ý ±ÙÀÔ¸»¶ÒÀÇ ¼³°è±âÁØÀº ÀϹÝÀûÀ¸·Î ħÇÏ·® ±âÁØÀ» »ç¿ëÇϹǷΠ¼³°è´Ü°è¿¡¼­ ¾Ï¹Ý±ÙÀÔ¸»¶ÒÀÇ ÇÏÁß-º¯À§$(sigma-sigma)$ °Åµ¿À» Àß ÀÌÇØÇØ¾ß Çϳª ±× °Åµ¿ÀÇ º¹À⼺À¸·Î ÀÎÇØ ÇÏÁß-º¯À§ °Åµ¿À» ÆÄ¾ÇÇϱⰡ ¾î·Æ´Ù. À̸¦ À§ÇØ ¸ÕÀú ÇöÀ埼³ ÄÜÅ©¸®Æ® ¸»¶Ò¿¡ ´ëÇØ ÇöÀåÀçÇϽÃÇèÀ» ½Ç½ÃÇÏ¿© ±× °á°ú·ÎºÎÅÍ ¾Ï¹Ý ±ÙÀÔ¸»¶ÒÀÇ ÇÏÁß-º¯À§ °Åµ¿À» °íÂûÇÏ¿´°í, »ó¿ë ÇÁ·Î±×·¥ÀÎ ELACÀ» ÀÌ¿ëÇÏ¿© ÇÏÁß-º¯À§ °î¼±ÀÇ Çü»ó¿¡ Å« ¿µÇâÀ» ÁÖ´Â ÀԷº¯¼ö¸¦ º¯È­½ÃÄÑ °¡¸ç ¸»¶ÒÀÇ ÇÏÁß-º¯À§ °ü°è¸¦ ¸ð»çÇÏ¿´´Ù. ÃÖÁ¾ÀûÀ¸·Î ¼öÄ¡ÇØ¼® ÀԷµ¥ÀÌÅÍ¿Í ÇöÀå Áö¹ÝÁ¶»ç°á°úÀÇ °ü°è¸¦ ÀϹÝÈ­ÇÔÀ¸·Î½á Áö¹Ý°øÇÐÀÚ°¡ ¼³°è´Ü°è¿¡¼­ ÀûÀýÇÑ ÇöÀåµ¥ÀÌÅ͸¦ ÀÌ¿ëÇÏ¿© ÇÏÁß-º¯À§ °Åµ¿À» ¿¹ÃøÇÒ ¼ö ÀÖµµ·Ï ÇÏ¿´´Ù.
The settlement limit concept is generally adopted as design criteria of rock-socketed pile foundations, therefore, the load-displacement$(sigma-sigma)$ behavior of the rock-socketed piles should be well understood at the design stage, which, however, is hard to achieve due to its complexity. To help this out, field pile load tests are executed on cast-in-situ concrete piles, first, to figure out the $sigma$-$delta$ behavior of rock-socketed piles. Next, the $sigma-sigma$ relations of the piles are simulated numerically using commercial package program(ELAC) varying a couple of input data which are sensitive in shaping the $sigma$-$delta$ curves. Finally, the relation between the best input data for the numerical simulations and the geotechnical field data are cultivated to generalize the numerical simulation procedures, which enables geotechnical engineers to predict the $sigma$-$delta$ behavior at the design stage, if appropriate geotechnical field data are provided.
 
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Rock-socketed pile;Load-displacement curve;Pile load test;Interface element;Peak cohesion;Subgrade reaction modulus;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.15, no.3, 1999³â, pp.151-160
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911921749254)
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