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Çѱ¹Áö¹Ý°øÇÐȸ / v.20, no.1, 2004³â, pp.131-139
È­°­Ç³È­Åä¿¡¼­ Scale Effect¸¦ °í·ÁÇÑ ±âÃÊÀÇ ÁöÁö·Â ¹× ħÇÏ·® »êÁ¤¿¡ °üÇÑ ¿¬±¸
( A Research for Computation of Bearing Capacity and Settlement of Foundation Considering Scale Effect in Weathered-granite Layer )
¹Ú¿ëºÎ;Á¤Çü½Ä; ÇѾç´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;ÇѾç´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
 
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Áö³»·Â±âÃÊ ¼³°è¿Í ½Ã°øÀ» À§ÇØ ½Ç½ÃÇÏ´Â ÆòÆÇÀçÇϽÃÇè °á°ú·ÎºÎÅÍ ½ÇÁ¦ ±âÃÊÁö¹ÝÀÇ ÁöÁö·Â ¹× ħÇÏ·®À» »êÁ¤ÇÒ¶§ scale effect¸¦ °í·ÁÇØ¾ß Çϴµ¥ ±¹³»¿¡´Â scale effect Àû¿ë±âÁØÀ̳ª °ü·Ã ½ÃÇèÀÚ·á°¡ ¾ø´Ù. ±×·¡¼­, È­°­Ç³È­Åä Áö¹Ý¿¡¼­ ÀçÇÏÆÇ Å©±âº° ÁöÁö·Â ¹× ħÇÏ·®ÀÇ »ó°ü°ü°è¸¦ ÆÄ¾ÇÇϱâ À§ÇØ ¸ðÇüÅäÁ¶ ¹× ÇöÀå ÆòÆÇÀçÇϽÃÇèÀ» ½Ç½ÃÇÏ¿´´Ù. ÅäÁ¶½ÃÇèÀº ÅäÁ¶³»¿¡ ÁöÃþÀ» Çü¼ºÇÑÈÄ ÇÔ¼öºñ Á¶°Ç, ´ÙÁüȽ¼ö, ½ÀÀ± ´ÜÀ§Áß·®, ¹× ÀçÇÏÆÇ Á÷°æ(D15, 25cm)º°·Î ¸ðÇüÅäÁ¶$(2,000 imes 2,000 imes 1,000mm)$¿¡¼­ ½Ç½ÃÇÏ¿´´Ù. ÇöÀå ÀçÇϽÃÇèÀº ÀçÇÏÆÇ Á÷°æ$(D15, 25, 30, 40, 75 imes 75, 140 imes 210cm)$º°·Î ½Ç½ÃÇÏ¿´´Ù. ÀçÇϽÃÇè °á°úºÐ¼®°ú ¼öÄ¡ÇØ¼®À» ÅëÇØ Åä»ç ¹× ¾Ï¹ÝÁö¹Ý¿¡¼­ Áö³»·Â ±âÃʼ³°è½Ã Scale effect¸¦ °è»êÇϱâ À§ÇÑ ÁöÁö·Â ¹× ħÇÏ·® »êÁ¤½ÄÀ» Á¦½ÃÇÏ¿´´Ù.
When calculating bearing capacity and settlement of actual foundation from plate test result fur design and construction of shallow foundation, scale effect should be considered. But, adequate guide and test result of scale effect were not prepared yet in Korea. So, to analyze the relations of bearing capacity and settlement as the difference of loading plate sizes, model test and field loading test were performed with different loading plate on weathered-granite layer. Model tests were conducted with water content, compaction number, saturated unit weight and plate size(Dl5, 25cm) in soil-box$(2,000 imes 2,000 imes 1,000mm)$ formed soil layer. Field loading tests were carried out with diameters of loading plate$(D15, 25, 30, 40, 75 imes 75, 140 imes 210cm)$ on the same soil condition. Finally, we presented the prediction formula of bearing and settlement for computating scale offset in design of shallow foundation through result analysis of load test and numerical simulation on weathered soil and rock.
 
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Bearing capacity;Plate load test;Scale effect;Settlement;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.20, no.1, 2004³â, pp.131-139
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200411922288765)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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