|
|
|
Çѱ¹Áö¹Ý°øÇÐȸ / v.22, no.12, 2006³â, pp.33-43
|
ÇØ¸Ó Äí¼Ç ÀçÁú¿¡ µû¸¥ ¸ðÇü¸»¶ÒÀÇ ¼ÒÀ½, ¿¡³ÊÁö Àü´ÞÈ¿À² ¹× ÁöÁö·Â ºÐ¼®
( Model Tests on a Plastic Pipe Pile for the Analysis of Noise, Energy Transfer Effect and Bearing Capacity due to Hammer Cushion Materials ) |
| ÀÓÀ¯Áø;Ȳ±¤È£;¹Ú¿µÈ£;ÀÌÁø°É; ¹èÀç´ëÇб³ °Ç¼³È¯°æ.öµµ°øÇаú;(ÁÖ)³ª¿ìE&G;Çѱ¹µµ·Î°ø»ç µµ·Î±³Åë±â¼ú¿ø;¹èÀç´ëÇб³ °ø°ú´ëÇÐ ÀüÀÚ°øÇаú;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| Á÷Çן°ø¹ý¿¡¼ »ç¿ëµÇ´Â ÇØ¸Ó Äí¼ÇÀÇ ÀçÁú Â÷À̰¡ Çן½Ã ÁÖº¯ Áö¹ÝÀÇ Áøµ¿°ú ¹ß»ý ¼ÒÀ½ ¹× ¿¡³ÊÁö Àü´ÞÈ¿À²¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ½Ç³» ¸ðÇü½ÃÇèÀ» ÅëÇØ Æò°¡ÇÏ¿´´Ù. Çן °úÁ¤À» ¸ð»çÇÒ ¼ö ÀÖ´Â ¸ðµ¨ ¸»¶Ò°ú Çן½Ã½ºÅÛ ¹× ½ºÆ®·¹ÀÎ °ÔÀÌÁö¿Í ȩŲ½¼ ¹Ù(Hopkinson bar)¸¦ ÀÌ¿ëÇÑ ¿¡³ÊÁö Àü´ÞÈ¿À² ÃøÁ¤ÀåÄ¡¸¦ Á¦ÀÛ, ±¸¼ºÇÏ¿´´Ù. ÇØ¸Ó Äí¼Ç ÀçÁú·Î´Â »ó¿ëÀÇ ÇØ¸Ó Äí¼ÇÀçÀÎ Micarta ÀÌ¿Ü, ÇöÀå¿¡¼ ´Ù¼ö »ç¿ëÇÏ´Â Plywood, Polyurethane, Rubber(SBR), Silicone rubber µîÀÇ 5°¡Áö Àç·á¸¦ ¼±Á¤ÇÏ¿© Çן½ÃÇèÀ» ½Ç½ÃÇÏ¿´´Ù Çן½ÃÇè°á°ú Äí¼Ç Àç·áº° ¿¡³ÊÁö Àü´ÞÈ¿À²Àº (1)Micarta, (2)Polyurethane, (3)Plywood, (4)Rubber(SBR), (5)Silicone rubberÀÇ ¼øÀ̾ú´Ù. ¶ÇÇÑ ¿¡³ÊÁö Àü´ÞÈ¿À²ÀÌ ³ôÀº Äí¼ÇÀç·á°¡ À½¾Ð·¹º§ÀÇ Æò±ÕÄ¡ ¶ÇÇÑ ³ôÀº ºñ·Ê°ü°è¸¦ º¸¿´´Ù. Çן Á¾·áÈÄ ¸»¶Ò Á¤ÀçÇϽÃÇèÀ» ½Ç½ÃÇÏ¿© ¸»¶ÒÀÇ ÁöÁö·Â°ú ÃàÇÏÁßÀüÀÌ Æ¯¼ºÀ» ºñ±³, ºÐ¼®ÇÑ °á°ú Micarta¿Í PolyurethaneÀÌ ´Ù¸¥ Äí¼ÇÀç·á¿¡ ºñÇØ ³ôÀº ÁöÁö·Â °ªÀ» º¸¿´´Ù. |
|
| Driving tests using model plastic piles with different hammer cushion materials were performed in order to evaluate the efficiency of energy transfer ratio from the hammer, degree of vibration of the surrounding ground and noise due to impacting. A small pile driving analyzer (PDA) was composed using straingages and Hopkinson bar which is measuring force signal and pile-head velocity. The hammer cushion (cap block) materials used for the model driving tests were commercial Micarta, plywood, polyurethane, rubber (SBR) and silicone rubber. The highest energy transfer ratio was obtained from Micarta in the same soil and driving conditions. Micarta was followed by polyurethane, plywood, rubber and silicone in descending order. The more efficient energy transfdr ratio of the hammer cushion materials became, the bigger average noisy (sound) level was found. In addition, Micarta and polyurethane provided bigger bearing capacities than other materials compared in the same soil and driving conditions in which the static loading tests were performed at the end of driving. |
| |
| Ű¿öµå |
| Energy transfer ratio;Hammer cushion;Model pile;Pile driving; |
| |
|
|
 |
|
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.22, no.12, 2006³â, pp.33-43
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200606141803576)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|