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Çѱ¹Áö¹Ý°øÇÐȸ / v.7, no.1, 1991³â, pp.7-14
ÃÊÀ½ÆÄ¸¦ ÀÌ¿ëÇÑ ÈëÀÇ µ¿Àû°è¼öÃøÁ¤¿¡ °üÇÑ ½ÇÇèÀû ¿¬±¸
( An Experimental Study on the Ultrasonic Testing for Determinig Dynamic Soil Moduli )
¹Î´ö±â;±è¹®µæ; Á¤È¸¿ø, ¿ï»ê´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;¿ï»ê´ëÇб³ ´ëÇпø;
 
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½ÃÆíÀ» Åë°úÇÏ´Â ÃÊÀ½ÆÄÀÇ ¼Óµµ¸¦ ÃøÁ¤ ÇÔÀ¸·Î½á ÈëÀÇ µ¿Àü´Ü ź¼º°è¼öÀÇ ÃøÁ¤À» ½ÃµµÇÏ¿´´Ù. ÃÊÀ½ ÆÄÀÇ ¹ß»ý ¹× °¨ÁöÀåÄ¡ÀÎ PUNDIT¸¦ »ç¿ëÇÏ¿´À¸¸ç, 4Á¾·ùÀÇ ½Ã·á¿¡ µû¸¥ °ø±Øºñ 7, Æ÷È­µµ 7Á¾·ù¿¡ ´ëÇØ¼­ ÃÑ 46°³ÀÇ ½ÇÇèÀ» ½Ç½ÃÇÏ¿´´Ù. º» ¿¬±¸´Â ½Ã·áÀÇ °ø±Øºñ ¹× Æ÷È­µµ,½Ã·áÀÇ Á¾·ùµîÀÌ µ¿Àü´Ü ź¼º°è¼ö¿¡ ¹ÌÄ¡´Â ¿µÇâ¿¡ ´ëÇØ¼­ ºÐ¼®ÇÏ¿´´Ù. ºÐ¼® °á°ú,ÈëÀÇ µ¿Àü´Ü ź¼º°è¼ö´Â °ø±Øºñ°¡ Áõ°¡ÇÔ¿¡ µû¶ó °¨¼ÒÇÏ´Â °æÇâÀ» º¸¿´À¸ ¸ç, ½Ã·áÀÇ Á¾·ù¿¡ ÀÇ ÇØ¼­µµ ¿µ ÇâÀ» ¹Þ´Â´Ù´Â »ç½ÇÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ º» ½ÇÇè ÀåºñÀÎ PUNDIT¸¦ »ç¿ëÇÒ °æ¿ì, ½ÃÆíÀÇ ±æÀÌ´Â 5cm-8cm°¡ Àû´çÇÏ¿´À¸¸ç, Æ÷È­µµÀÇ ¿µÇâÀº °ÅÀÇ ¾ø´Â °ÍÀ¸·Î ÆÇ´Ü µÇ¾ú´Ù.
Determination of dynamic shear modulus of soil was made by measuring directly the velocity of ultrasonic shear waves transmitted through the specimen. The PUNDIT, a generator and detector of ultrasonic waves, has been used to measure the propagation velocity. Forty -six tests of compacted soil at seven different void ratios and seven varying degrees of saturation with four types of materials were made in this study. The primary importance in this study was the investigation of the relations among the para meters which influenced G-modulus, As a results of analysis, the dynamic shear modulus of soil tends to decrease with an increase of void ratio, and also it is affected by soil types. In case of using PUNDIT, the proper range of the specimen length is from 5cm to 8cm. And the degree of saturation doesn't affect the dyn- amic shear modulus of soil.
 
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Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.7, no.1, 1991³â, pp.7-14
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199111920444087)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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