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Çѱ¹Áö¹Ý°øÇÐȸ / v.21, no.1, 2005³â, pp.81-91
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SCP º¸° Á¡¼ºÅä Áö¹ÝÀÇ ÁöÁö·Â ¹× ÀÀ·ÂºÐ´ãƯ¼º
( Characteristics of Bearing Capacity and Stress Concentration of Clay Ground Improved with Sand Compaction Piles ) |
| À¯³²Àç;¹Úº´¼ö;Á¤±æ¼ö;°í°æÈ¯;±èÁö¼º; °¿ø´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;°¿ø´ëÇб³ Åä¸ñ°øÇаú;°¿ø´ëÇб³ Åä¸ñ°øÇаú;»ï¼º¹°»ê(ÁÖ) °Ç¼³ºÎ¹®;»ï¼ºÁß°ø¾÷(ÁÖ) °Ç¼³»ç¾÷ºÎ;
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| º» ³í¹®Àº SCP·Î º¸°µÈ Á¡¼ºÅä Áö¹ÝÀÇ ÆÄ±«¸ÞÄ«´ÏÁò ¹× ÀÀ·ÂºÐ´ãºñ, ÁöÁö·Âµî¿¡ ¹ÌÄ¡´Â ¼³°èº¯¼ö¿¡ ´ëÇÑ ½ÇÇèÀû ¼öÄ¡Àû ¿¬±¸ °á°úÀÌ´Ù. SCP·Î º¸°µÈ Á¡¼ºÅä Áö¹ÝÀÇ °Åµ¿À» ¾Ë¾Æº¸±â À§ÇÏ¿© SCPÀÇ Ä¡È¯À²À» 20, 40, $70%$·Î º¯È½Ã۰í, ºñ¼Ò¼º ¼¼¸³ºÐ ÇÔÀ¯·®À» 5, 10, $15%$·Î º¯È½ÃÄ×À¸¸ç ÇÏÁßÀçÇÏÆø¿¡ ´ëÇÑ Áö¹Ý°³·®ÆøÀÇ ºñ¸¦ 1, 2, 3À¸·Î º¯È½ÃŰ´Â ±¤¹üÀ§ÇÑ ¿ø½É¸ðÇü½ÇÇèÀ» ½Ç½ÃÇÏ¿´´Ù. ÇÑÆí, ¿ø½É¸ðÇü½ÇÇè °á°ú¸¦ ¸ð»çÇϱâ À§ÇÏ¿© »ó¿ë À¯ÇÑ¿ä¼Ò ÇÁ·Î±×·¥ÀÎ CRISPÀ» ÀÌ¿ëÇÏ¿´À¸¸ç, ¼öÄ¡ÇØ¼®½Ã ¸ð·¡´ÙÁü¸»¶ÒÀº ź¼Ò¼º¸ðµ¨·Î Á¡ÅäÁö¹ÝÀº ÇѰè»óÅÂÀ̷п¡ ±âÃÊÇÑ ¼öÁ¤ Cam-clay ¸ðµ¨À» »ç¿ëÇÏ¿´´Ù. |
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| This paper is the results of experimental and numerical works on the investigating design factors influencing the bearing capacity, the ratio of stress concentration, and the failure mechanism of the clay ground improved with sand compaction piles (SCP). In order to find the behavior of the clay ground improved with SCP, extensive centrifuge model experiments were carried out for each of the SCP replacement ratio of 20, 40, and $70%$, the non-plastic fine contents in sand of 5, 10, and $15%$, and the ratio of the improved width to the loaded area (W/B) of 1, 2, and 3. The commertially available software of FEM, CRISP, was used to analyze test results by performing numerical estimations. In these numerical analyses the sand compaction piles and the clay ground were simulated as a linear elastic and plastic constitutive model and the modified Cam-clay model, based on Critical State Soil Mechanics, respectively, |
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| Ű¿öµå |
| Area replacement ratio;Centrifuge model test;Sand compaction pile;Stress concentration ratio; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.21, no.1, 2005³â, pp.81-91
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200531935916668)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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