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Çѱ¹¼öÀÚ¿øÇÐȸ / v.41, no.4, 2008³â, pp.445-454
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ÇÊÅÍ ¾ø´Â »ç¼®º¸È£°øÀÇ À¯»çÀÌÅ»·Î ÀÎÇÑ Ä§ÇÏ ¾ÈÁ¤¼º Æò°¡¸¦ À§ÇÑ ½ÇÇè ¿¬±¸
( An Experimental Study to Evaluate the Subsidence Stability of Riprap Protection without Filters ) |
| Áö¿î;¿©¿î±¤;ÀÌ¿ø¹Î; ¸íÁö´ëÇб³ Åä¸ñȯ°æ°øÇаú;¸íÁö´ëÇб³ Åä¸ñȯ°æ°øÇаú;¸íÁö´ëÇб³ Åä¸ñȯ°æ°øÇаú;
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| ÇÏõÀ̳ª ÇØ»ó¿¡ °Ç¼³µÈ ±³·®ÀÇ ±³°¢¿¡¼ ¹ß»ýÇÏ´Â ¼¼±¼Àº ±¸Á¶¹°ÀÇ ¾ÈÀü¿¡ ÀÖ¾î¼ ¸Å¿ì Áß¿äÇϸç ÀÌ·¯ÇÑ ¼¼±¼À» ¸·±â À§ÇØ ¿©·¯ ¼¼±¼º¸È£°ø¹ýµéÀÇ °³¹ß ¹× ¿¬±¸°¡ ¼öÇàµÇ°í ÀÖÀ¸¸ç, ÇöÀç ÇöÀå¿¡¼ °¡Àå ¸¹ÀÌ Àû¿ëµÇ´Â ¹æ¹ýÀ¸·Î »ç¼®º¸È£°øÀÌ ÀÖ´Ù. ÀÌ·¯ÇÑ »ç¼®º¸È£°øÀÇ °æ¿ì »ç¼®°ú ÇÏ»ó ÀÔÀÚ Å©±â¿¡ µû¶ó ±× ºñÀ²ÀÌ ±âÁØ ÀÌ»óÀÌ µÉ °æ¿ì »ç¼® Ãþ°ú ÇÏ»ó »çÀÌ¿¡ ÇÊÅÍ ÃþÀ» ½Ã°øÇØ¾ß ÇÏÁö¸¸ ÇöÀå¿©°Ç¿¡ µû¶ó ÇÊÅͽðøºÎºÐ¿¡ ¸·´ëÇÑ °ø»çºñ¿ëÀ» Ãß°¡Çϰųª ÇÊÅÍ ½Ã°øÀÌ ºÒ°¡´ÉÇÑ °æ¿ìµµ ÀÖ´Ù. º» ¿¬±¸´Â ¼ö¸®¸ðÇü½ÇÇèÀ» ÅëÇØ ÇÊÅÍ ¾ø´Â »ç¼®º¸È£°øÀÇ ºØ±« ÇüŸ¦ ºÐ¼®Çϰí, ¼¼±¼À» ¹æÁöÇϱâ À§ÇØ ¼³Ä¡ÇÏ´Â »ç¼® ¼¼±¼º¸È£°øÀÌ ÇÊÅÍ ¼³Ä¡°¡ ¹Ýµå½Ã ÇÊ¿äÇÑ Á¶°ÇÀÌÁö¸¸ ÇÊÅÍ Ãþ ¾øÀÌ ¼³Ä¡µÉ °æ¿ì, Æ÷¼³ µÎ²² ¹× Á¢±Ù À¯¼Ó¿¡ µû¸¥ ħÇÏ ¾ÈÁ¤¼ºÀ» Æò°¡Çϱâ À§ÇÑ °ÍÀÌ´Ù. ½ÇÇè °á°ú´Â Á¤·®ÀûÀÎ ºÐ¼®°ú Á¤¼ºÀûÀÎ ºÐ¼®À» ÅëÇØ ÃÖÁ¾ÀûÀ¸·Î ÇÊÅÍ ¾ø´Â »ç¼® º¸È£°øÀÇ ¾ÈÁ¤¼º Æò°¡ ÁöÇ¥¸¦ °³¹ßÇϴµ¥ Ȱ¿ëµÇ¾ú´Ù. Á¢±ÙÀ¯¼ÓÀÌ Áõ°¡Çϰųª »ç¼®º¸È£°øÀÇ Æ÷¼³µÎ²²°¡ °¨¼ÒÇÒ¼ö·Ï ÃÖÁ¾Ä§ÇÏ·®Àº Áõ°¡ÇÏ´Â ¾ç»óÀ» º¸¿´À¸¸ç, ¸ðµç ½ÇÇèÁ¶°Ç¿¡¼ °æ¹ÌÇÑ À¯»çÀÌÅ»Àº ÃÖÁ¾Ä§ÇÏ·®¿¡ µµ´ÞÇÒ ¶§±îÁö ¹ß»ýÇÏ¿´´Ù. |
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| Many countermeasures for local scour at bridge piers constructed on the river and sea have been developed and researched to protect piers against local scour. The most commonly employed method is riprap protection, which is sometimes required the filter installation between riprap and base layers. However, the construction of stone filters are really hard to perform in the field, require the high cost, or sometimes are impossible. The experimental modeling is conducted to analyze the riprap failure modes and the stability of riprap protection without filters based on the different approach velocity and riprap layer thickness conditions. Also, the stability index to evaluate the performance of riprap protection is developed using the experimental results. The cover and thickness of the riprap layer play a very important role in the stability and thicker riprap layers can prevent a total disintegration of the riprap layer effectively, especially due to winnowing failure. |
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| Ű¿öµå |
| ±³°¢¼¼±¼;»ç¼®º¸È£°ø;À¯»çÀÌÅ»(winnowing);»ç¼®Ä§ÇÏ;pier scour;riprap protection;winnowing failure;riprap subsidence; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.41, no.4, 2008³â, pp.445-454
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200814264574514)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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