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Çѱ¹Áö¹Ý°øÇÐȸ / v.26, no.7, 2010³â, pp.37-47
Áøµ¿ÁÖÀÔÀÌ ±×¶ó¿ìÆ®ÀçÀÇ Ä§Åõ Ư¼º¿¡ ¹ÌÄ¡´Â ¿µÇâ ¿¬±¸
( Effect of Vibratory Injection on Grout Permeation Characteristics )
À̹®¼±;±èÁ¾¼±;À̼ºµ¿;ÃÖ¿µÁØ;¾çÀ縸;ÀÌÀθð; µÎ»ê°Ç¼³ Åä¸ñ»ç¾÷º»ºÎ;°í·Á´ëÇб³ °ÇÃà»çȸȯ°æ°øÇкÎ;°í·Á´ëÇб³ °ÇÃà»çȸȯ°æ°øÇкÎ;»ï¼ö°³¹ß ±â¼ú¿¬±¸¼Ò;»ï¼ö°³¹ß ±â¼ú¿¬±¸¼Ò;°í·Á´ëÇб³ °ÇÃà»çȸȯ°æ°øÇкÎ;
 
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±×¶ó¿ìÆ®ÀçÀÇ Ä§Åõ Ư¼ºÀ» °³¼±Çϱâ À§ÇÏ¿© Áøµ¿ ÁÖÀÔÀ» Àû¿ëÇÏ¿´´Ù. Áøµ¿ÁÖÀÔ°ø¹ýÀº Áøµ¿ÇÏ´Â ÁÖÀÔ¾ÐÀ» ºÎ°¡ÇÏ¿© ÁÖÀÔÇÏ´Â ±×¶ó¿ìÆÃ ±â¼ú·Î¼­ À̸¦ Àû¿ëÇÒ °æ¿ì, ±×¶ó¿ìÆ®ÀçÀÇ Á¡¼º°ú ±×¶ó¿ìÆ®Àç ÀÔÀÚÀÇ ÈíÂø Çö»óÀÌ °¨¼ÒÇÏ°Ô µÈ´Ù. º» ¿¬±¸¿¡¼­´Â Áøµ¿ ÁÖÀÔ¿¡ ÀÇÇÑ ±×¶ó¿ìÆ®ÀçÀÇ Ä§Åõ Ư¼º °³¼±À» °ËÁõÇϱâ À§ÇÏ¿© ¸ðÇü ÁÖÀÔ ½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. ½ÇÇè °á°ú·ÎºÎÅÍ ÈíÂø Çö»óÀ» Æò°¡ÇÏ´Â °è¼öÀÎ $ heta$ ¸¦ »êÁ¤ÇÏ¿© ħÅõ Ư¼º °³¼± Á¤µµ¸¦ Á¦½ÃÇÏ¿´´Ù. ¶ÇÇÑ Àΰø Àý¸®¸é¿¡ ´ëÇÑ ÁÖÀÔ ½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. ¸ðÇü ½ÇÇè ¹× ÀΰøÀý¸®¸éÀÇ ½ÇÇè °á°ú¿Í ÀÌ·ÐÀûÀÎ ÇØ¼® °á°ú¸¦ ÅëÇØ Áøµ¿ ÁÖÀÔ ½Ã ±×¶ó¿ìÆ®ÀçÀÇ Ä§Åõ´ÉÀÌ Áõ°¡µÊÀ» °ËÁõÇÏ¿´À¸¸ç, ƯÈ÷ 400kPa ÀÌÇÏÀÇ Àú¾ÐÀ¸·Î ÁÖÀÔÇÏ¿´À» ¶§ Áøµ¿ ÁÖÀÔÀÇ È¿°ú°¡ ÃÖ´ë·Î ³ªÅ¸³²À» È®ÀÎÇÏ¿´´Ù.
To improve the grout penetration characteristics, a vibratory grout injection technique was adopted in this study. It is a technique of grout injection in which an oscillating pressure is added to the steady-state pressure as an injection pressure. By applying the vibration during grout injection, cement particles will become less adhesive and the clogging tendency will be decreased. A series of pilot-scale chamber tests were performed to verify the enhancement of the groutability by applying the vibratory grout injection; assessment on the change of the lumped parameter $ heta$ which represents a barometer of clogging phenomenon was made. Moreover, the effect of vibratory grout injection through the joint was also investigated using artificially made rock joints. Experimental results as well as analytical results show that the grout penetration depth can be substantially improved by vibratory grouting. Moreover, it was found that enhancement of the permeation grouting due to vibratory injection is more dominant at grouting pressure less than 400 kPa.
 
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Clogging;Groutability;Grouting;Permeation;Vibratory injection;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.26, no.7, 2010³â, pp.37-47
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201033062364981)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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