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Çѱ¹Áö¹Ý°øÇÐȸ / v.27, no.6, 2011³â, pp.27-37
¾à¾×ÁÖÀÔ ½Ã Çü¼ºµÈ °í°áüÀÇ ¼öÄ¡ÇØ¼® ±â¹ý ¿¬±¸
( A Study on Numerical Technique of the Hardened Grout Formed by Grouting )
ÀÌÁ¾ÈÖ;õº´½Ä; ÇѾç´ëÇб³ °Ç¼³È¯°æ°øÇаú;ÇѾç´ëÇб³ °Ç¼³È¯°æ°øÇаú;
 
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ÃÖ±Ù °¡¾Ð ±×¶ó¿ìÆÃ Çü½ÄÀÇ ¾à¾×ÁÖÀÔ°ø¹ýÀÌ Áö¹ÝÀÇ Áö¹Ý°³·®, Â÷¼ö, °­µµ Áõ´ë µîÀÇ ¸ñÀûÀ¸·Î ³Î¸® ¾²À̰í ÀÖ´Ù. ÀÌ¿¡ Áö¹ÝÁ¶°Ç¿¡ µû¸¥ °í°áüÀÇ Å©±â ¹× Çü»óÀ» ÃøÁ¤ÇÏ¿© ÀûÁ¤ ÁÖÀԾР¹× ÁÖÀԽð£À» Á¤ÇÏ´Â °ÍÀº °æÁ¦ÀûÀ̰í ÇÕ¸®ÀûÀÎ ½Ã°øÀ» À§ÇØ ÇʼöÀûÀÌ´Ù. ±×·¯³ª, ÇöÀå¿¡¼­ ½ÃÇè½Ã°øÀ» ÅëÇÑ °í°áü äÃë´Â ½Ã°£°ú ºñ¿ëÀÌ ¸¹ÀÌ ¼Ò¸ðµÇ¸ç, ±×¶ó¿ìÆÃ °ø¹ýÀ» Àû¿ëÇÑ Áö¹Ý¿¡ °í°áüÀÇ Å©±â¿Í Çü»óÀ» ¿¹ÃøÇÑ ½Ã½ºÅÛÀº ÇöÀç±îÁö ¾ø´Ù. µû¶ó¼­, º» ¿¬±¸¿¡¼­´Â ¹°À¯¸®°è ¾à¾×À» »ç¿ëÇÏ¿© ÁÖÀÔ¾Ð(50kPa, 100kPa, 150kPa)¿¡ µû¸¥ ½Ç³»¸ðÇüÁÖÀÔ½ÃÇèÀ» ½Ç½ÃÇϰí À̸¦ Àü»êÀ¯Ã¼¿ªÇÐ(CFD)ÀÇ porous media¸ðµ¨°ú VOF(Volume of Fluid) ±â¹ýÀ» ÀÌ¿ëÇÑ ¼öÄ¡ÇØ¼®À» ½Ç½ÃÇÏ¿© ºñ±³ ºÐ¼®ÇÏ¿´´Ù. ¼öÄ¡ÇØ¼® °á°ú, VOF ±â¹ýÀ» ÀÌ¿ëÇÑ ÁÖÀÔ¸ð»ç´Â ÁöÁß ¼Ó¿¡ ÁÖÀÔµÈ °¡¾Ð ±×¶ó¿ìÆÃÀÇ °Åµ¿ ¹× °í°á ¾ç»óÀ» ¿¹ÃøÇÒ ¼ö ÀÖ´Â ±âÃÊÀûÀÎ ¼öÄ¡ÇØ¼®Àû ±â¹ýÀÌ µÉ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù.
Recently, pressure grouting is widely being used in construction site for strength improvement of ground and water proof, reinforcement and so on. It is necessarily required to estimate an appropriate injection pressure and injection time for economical and reasonable construction in the site through the size and shape of the hardened grout measured according to ground condition. However, sampling for the hardened grout is time-consuming and needs high cost on preliminary test in the site. The system which could predict the size and shape of the hardened grout does not exist until now. Thus, numerical method based on VOF method and porous model was used for the calibration chamber injection test with injection pressure (50 kPa, 100 kPa, 150 kPa) in this study. The results indicate that the numerical technique based on VOF method and porous model among CFD analysis is expected to be a basic study for the prediction of the behavior and solidification of pressure grouting.
 
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ADINA;CFD analysis;Grout bulb;Grouting;Hardened grout;Injection pressure;Volume-of-fluid;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.27, no.6, 2011³â, pp.27-37
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201124359107346)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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