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Çѱ¹Áö¹Ý°øÇÐȸ / v.20, no.9, 2004³â, pp.5-15
ÁöÇ¥¸é ¶ìÇÏÁß ÀçÇÏ¿¡ µû¸¥ »çÁúÅäÁö¹Ý ÁöÁß¿¬Á÷ÀÀ·Â Áõ°¡·®ÀÇ Boussinesq À̷аª¿¡ ´ëÇÑ ½ÇÇèÀû °íÂû
( An Experimental Investigation of Boussinesq's Theoretical Value of Vertical Stress Increment in Sandy Soil Mass Caused by Surface Strip Loading )
ÀÓÁ¾¼®; ¸ñÆ÷´ëÇб³ °ÇÃàÁ¶°æÅä¸ñ°øÇкΠÅä¸ñ°øÇÐÀü°ø;
 
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Á¤¹ÐÇÑ ±âÃʼ³°è¸¦ À§ÇÏ¿© ÁöÁß¿¬Á÷ÀÀ·ÂºÐÆ÷¸¦ ÆÄ¾ÇÇÏ´Â °ÍÀº Áß¿äÇÏ´Ù. º» ¿¬±¸¿¡¼­´Â ÁöÇ¥¸é ÀçÇÏ¿¡ ÀÇÇÑ »çÁúÅäÁö¹ÝÀÇ ÁöÁß¿¬Á÷ÀÀ·Â Áõ°¡·®¿¡ ´ëÇÑ BoussinesqÀÇ ÀÌ·ÐÀ» °íÂûÇϱâ À§ÇÏ¿© ÀÏ·ÃÀÇ ½Ç³»¸ðÇü½ÃÇèÀ» ¼öÇàÇÏ¿´À¸¸ç BoussinesqÀÇ À̷аªÀ» ½ÇÃø°ª°ú ºñ±³ÇÏ¿´´Ù. BoussinesqÀÇ À̷аªÀº ±íÀÌ¿¡ °ü°è¾øÀÌ ±âÃÊÆÇ ÇϺο¡¼­´Â ½ÇÃø°ªº¸´Ù ÀÛ¾Ò´Ù ±âÃÊÆÇÀÇ ¹Ù±ùºÎºÐ¿¡¼­´Â ±âÃÊÆøÀÇ 1.0¹èÀÇ ±íÀÌ¿¡¼­´Â À̷аªÀº ½ÇÃø°ªº¸´Ù ÄÇÀ¸³ª ±âÃÊÆøÀÇ 2.0¹è ¹× 3.0¹èÀÇ ±íÀÌ¿¡¼­´Â À̷аª°ú ½ÇÃø°ªÀÌ °ÅÀÇ ºñ½ÁÇØÁö´Â °æÇâÀ̾ú´Ù. °¡ÇØÁø ´ÜÀ§¸éÀû´ç ÇÏÁß¿¡ ´ëÇÑ ÁöÁß¿¬Á÷ÀÀ·ÂÀº ÇÏÁßÀÌ Áõ°¡ÇÔ¿¡ µû¶ó °¨¼ÒÇÏ¿´´Ù. ÀÌ·¯ÇÑ °æÇâµéÀº »ó´ë¹Ðµµ³ª ±âÃÊÆø¿¡ °ü°è¾øÀÌ ³ªÅ¸³µ´Ù. BoussinesqÀÇ ÀÌ·ÐÀ» ÀÌ¿ëÇÒ ¶§ ÀÌ¿Í °°Àº °á°ú¸¦ °¨¾ÈÇÏ¿© À̷аªÀ» º¸Á¤ÇÏ¸é º¸´Ù Á¤È®ÇÑ °ªÀ» ¾òÀ» ¼ö ÀÖÀ» °ÍÀÌ´Ù.
It is worthwhile to verify the vertical stress distribution in soil mass for rigorous design of foundation. A series of laboratory model tests were performed to investigate the Boussinesq's theory on vertical stress increment in sandy soil mass caused by surface loading. The test results were also compared with Boussinesq's theoretical values. The Boussinesq's theoretical values were always smaller than test results under the footing regardless of depth. Outside of the footing the values were larger than the measured stress at the depth of just footing width. The theory and the test showed similar results when the depth reached two and three times the footing width. The vertical stress decreased as the applied load increased. These trends were confirmed to be valid for the considered range of the relative density of sand and/or the width of footing. More accurate values can be acquired by correcting the theoretical values using these results when Boussinesq's theory is used.
 
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Boussinesq's solution;Model test;Relative density;Sandy soil;Surface loading;Vertical stress distribution;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.20, no.9, 2004³â, pp.5-15
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200430710458779)
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