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Çѱ¹µµ·ÎÇÐȸ / v.11, no.1, 2009³â, pp.233-245
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( Static and Dynamic Stability Evaluation of Model Guardrail Posts Based on Geotechnical Properties ) |
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| ¿¬¼º¹æÈ£Ã¥ ÁöÁÖ(post)ÀÇ ¼³°è Áö¹Ý¹°¼ºÄ¡¸¦ ÆÄ¾ÇÇϰí À̸¦ ÀÌ¿ëÇÑ ÇØ¼®¹æ¹ýÀ» ¼ö¸³Çϱâ À§ÇÑ ¹æ¹ýÀ¸·Î¼ °ø³»ÀçÇϽÃÇè(PMT)ÀÇ »ç¿ë°¡´É¼ºÀ» °ËÅäÇÏ¿´´Ù. °ø³»ÀçÇϽÃÇè °á°ú¸¦ ÀÌ¿ëÇÏ¿© ÁöÁÖÀÇ ÈÚ¸ð¸àÆ® ¹× ÇÏÁß-º¯À§°ü°è¸¦ ¿¹ÃøÇÒ ¼ö ÀÖ´Â ÇØ¼®¹æ¹ýÀÇ ¼ö¸³°¡´É¼ºÀ» °ËÅäÇÏ¿´´Ù. ¸ðÇüÁö¹Ý°ú ¸ðÇüÁöÁÖ¸¦ ÀÌ¿ëÇÑ Á¤ÀçÇϽÃÇèÀ» ½Ç½ÃÇÏ¿© ÇÏÁß-º¯À§ÀÇ ¹ß»ýÆÐÅϰú Å©±â¸¦ ºÐ¼®ÇÏ¿´À¸¸ç À̸¦ °ø³»ÀçÇϽÃÇè ÇØ¼®¹æ¹ýÀ¸·ÎºÎÅÍ ±¸ÇÑ °á°ú°ª°ú ºñ±³ÇÏ¿© °ø³»ÀçÇϽÃÇè ÇØ¼®¹æ¹ýÀÇ Å¸´ç¼ºÀ» °ËÅäÇÏ¿´´Ù. ¶ÇÇÑ ¸ðÇüÂ÷(bogie)¸¦ ÀÌ¿ëÇÏ¿© ¸ðÇü ÁöÁÖ¿¡ ´ëÇÑ Ãæ°Ý½ÃÇèÀ» ½Ç½ÃÇÏ¿© ÁöÁÖÁÖº¯Áö¹ÝÀÇ ÆÄ±«ÇüŸ¦ ÆÄ¾ÇÇÏ¿´À¸¸ç ÃøÁ¤µÈ ÃÖ´ë°¨°¡¼Óµµ·ÎºÎÅÍ Á¤ÀûÁöÁö·Â ´ëºñ µ¿ÀûÁöÁö·ÂÀÇ ¹ß»ýÅ©±â¸¦ ºÐ¼®ÇÏ¿´´Ù. ÀÌ¿Í °°Àº ½ÃÇè ¹× ÇØ¼®°á°ú·ÎºÎÅÍ °ø³»ÀçÇϽÃÇèÀÌ ¹æÈ£Ã¥ ÁöÁÖ¿Í µµ·ÎÁö¹Ý »çÀÌÀÇ ¿ªÇÐÀû »óÈ£¿¬°ü¼ºÀ» ºÐ¼®Çϱâ À§ÇÑ ÇÕ¸®ÀûÀÎ ½ÃÇè¹æ¹ýÀÌ µÉ ¼ö ÀÖÀ½À» È®ÀÎÇÏ¿´´Ù. |
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| Availability of pressuremeter test for evaluation of geotechnical properties of foundation soil into which guardrail post is to be installed is investigated in this study. First, an analysis method of the post based on the pressuremeter test is proposed that can obtain bending moment and load-deformation profiles of the post. Then static horizontal load test onto a small scale guardrail post is performed in order to get bearing capacity and load-deformation pattern of the model post. The obtained results are compared with the load-deformation curves and bearing capacity of the post obtained from the pressuremeter method. In addition horizontal impact test to the post is performed using a model bogie car in order to check failure pattern around the model foundation and to investigate dynamic bearing capacity due to deceleration and inertia force of the soil. It is verified that the pressuremeter test is so useful and reasonal technique to analyze road foundation-post interaction. |
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| ¿¬¼º¹æÈ£Ã¥ ÁöÁÖ;°ø³»ÀçÇϽÃÇè;ÁöÁö·Â;¸ðÇüÂ÷;guardrail post;pressuremeter test;bearing capacity;bogie car; |
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.11, no.1, 2009³â, pp.233-245
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200911850421624)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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