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Çѱ¹Áö¹Ý°øÇÐȸ / v.19, no.2, 2003³â, pp.217-225
¸ðÇü½ÃÇèÀ» ÅëÇÑ Áö¹Ýº¸°­ ±×¶ó¿ìÆÃÀÇ ÀûÁ¤ÁÖÀԾз ¿¬±¸
( Investigation of the Optimum Injection Pressure in Pressure Grouting by Laboratory Model Tests )
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Áö¹Ýº¸°­ ±×¶ó¿ìÆÃÀº ´ë»óÁö¹ÝÀÇ °øÇÐÀû Ư¼º ¹× »ç¿ë ¸ñÀû¿¡ µû¶ó ÁÖÀÔÀç Á¾·ù, ÁÖÀԾзÂ, ÁÖÀÔ·® µîÀ» ÀûÀýÈ÷ ¼±ÅÃÇØ¾ß È¿À²ÀûÀÌ°í °æÁ¦¼º ÀÖ´Â ½Ã°øÀÌ µÉ ¼ö ÀÖ´Ù. ƯÈ÷, ¾Ð·Â ±×¶ó¿ìÆÃ °ø¹ýÀ» °ß°íÇÑ ¾Ï¹ÝÃþÀÌ ¾Æ´Ñ ÀÏ¹Ý Åä»çÃþ¿¡ Àû¿ë½Ã ¾Ð·ÂÀÌ ³ôÀº °æ¿ì ¼ö¾ÐÆÄ¼â¿¡ ÀÇÇÑ ÁÖÀÔÀç ÀÌÅ» µîÀÇ ¹®Á¦°¡ ¹ß»ýÇϱ⠽¬¿ì¹Ç·Î ÇöÀåÁ¶°Ç¿¡ ¾Ë¸Â´Â ÁÖÀԾзÂÀ» ¹Ì¸® ¼³Á¤ÇÏ´Â °ÍÀÌ ÇÊ¿äÇÏ´Ù. ÀÌ ¿¬±¸´Â ´À½¼ ³»Áö Á߹РÁ¤µµÀÇ ¼â¼®°ú ¸ð·¡¸¦ ÀÌ¿ëÇÑ ½ÇÇè½Ç ¸ðÇü½ÃÇèÀ» ÅëÇÏ¿© ÀûÁ¤ ÁÖÀԾаú ÁÖÀÔ¹æ¹ýÀ» ¹àÈ÷±â À§ÇØ ¼öÇàµÇ¾ú´Ù. ÃÖÀû ÁÖÀÔ¾Ð, ÁÖÀÔ·® ±×¸®°í ÁÖÀԽð£À» Á¶»çÇϱâ À§ÇØ ½ÇÇè°úÁ¤¿¡¼­ ÁÖÀÔÁ¶°ÇÀ» º¯È­½ÃÄ×´Ù. ½ÃÇè°á°ú·ÎºÎÅÍ ¼â¼® ¹× ¸ð·¡Áö¹Ý¿¡¼­ ¾Ð·Â±×¶ó¿ìÆÃÀÇ ÃÖÀû ÁÖÀÔ¾ÐÀº3~4kg/$cm^2$ ÀÓÀ» ¾Ë ¼ö ÀÖ¾ú´Ù.
The ground reinforcement effect of pressure grouting depends on grout penetration into ground. It is not, however, easy to predict the grout penetration in the design process because of the heterogeneity of ground conditions. This study investigates the proper grouting pressure and grouting method through laboratory model tests for pressure grouting using loose to medium dense crushed rock and sandy ground using specially designed and fabricated device. The optimum injection pressure, grout quantity and injection time are investigated through performing pressure grouting under changing conditions of injection in this test. From the test results, it was found that optimum injection pressure covers the range of 3 to 4kg/cm$^2$
 
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Ground reinforcement;Optimum injection pressure;Pressure grouting;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.19, no.2, 2003³â, pp.217-225
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311921640860)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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