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Çѱ¹Áö¹Ý°øÇÐȸ / v.19, no.2, 2003³â, pp.227-236
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Ȱ dzȾÏÀÇ Ç³Èµµ ¹× °µµÁ¤¼öÀÇ Æò°¡ (I)
( Evaluation of Weathering Intensity and Strength Parameter for Weathered Granite Masses (I) ) |
| ÀÌÁ¾±Ô;À弸¸; ´Ü±¹´ëÇб³ Åä¸ñȯ°æ°øÇаú;´Ü±¹´ëÇб³ Åä¸ñȯ°æ°øÇаú;
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| º» ¿¬±¸´Â ±¹³»ÀÇ ´ëÇ¥ÀûÀΠȰ¾Ï ºÐÆ÷Áö¿ªÀ» ¿¬±¸´ë»ó Áö¿ªÀ¸·Î ¼±Á¤ÇÏ¿© dzȾÏÃþ¿¡ ´ëÇÏ¿© ¼öÇàµÈ ÀÏ·ÃÀÇ ½Ç³»¿ªÇÐ ¹× ¿øÀ§Ä¡½ÃÇè °á°ú·ÎºÎÅÍ Ç³Èµµ¿¡ µû¸¥ Ȱ dzȾÏÀÇ °µµ º¯Çü Ư¼ºÀ» ±Ô¸íÇÏ°í ¼³°è ´Ü°è¿¡¼ ºñ±³Àû ½ÃÇàÀÌ ¿ëÀÌÇÑ °ø³»ÀçÇϽÃÇè °á°ú·ÎºÎÅÍ Ç³Èµµ¿¡ µû¸¥ ȰdzȾÏÀÇ ³»ºÎ¸¶Âû°¢ ¹× Á¡Âø·Â µîÀÇ °µµÁ¤¼ö¸¦ Æò°¡ÇÒ ¸ñÀûÀ¸·Î ¼öÇàµÇ¾ú´Ù. ¿¬±¸´ë»ó Áö¿ªÀÇ È° dzȾϿ¡ ´ëÇÑ Èí¼öÀ² ¹× dzȳ»±¸¼ºÁö¼ö ½ÃÇè°á°ú¸¦ ºÐ¼®ÇÑ °á°ú Ç³È µµ¸¦ ³ªÅ¸³»´Âµ¥ ºñ±³Àû ½Å·Ú¼º ÀÖ´Â ¹æ¹ýÀ¸·Î Æò°¡µÇ¾î À̸¦ ±Ù°Å·Î ´ë»ó Áö¿ªÀÇ È° dzȾÏÀ» 3µî±ÞÀÇ Ç³Èµµ·Î ±¸ºÐÇÒ ¼ö Àִ dzȵµ ºÐ·ù ¹æ¹ýÀ» Á¦½ÃÇÏ¿´À¸¸ç, Mohr-Coulomb ÆÄ±«±âÁØ ¹× °øµ¿È®ÀåÀÌ·ÐÀ» ÀÌ¿ëÇÑ ÇØ¼®Àû ¹æ¹ýÀ» Åä´ë·Î °ø³»ÀçÇϽÃÇè °á°ú·ÎºÎÅÍ ¿¬±¸´ë»ó Áö¿ª dzȾÏÀÇ Á¡Âø·Â, ³»ºÎ¸¶Âû°¢ ¹× ÆØÃ¢°¢ µîÀÇ °µµÁ¤¼ö¸¦ dzȵµº°·Î Æò°¡ÇÏ¿´´Ù. ÇØ¼®°á°ú dzȵµ°¡ Áõ°¡ÇÒ¼ö·Ï °µµÁ¤¼ö´Â Áö¼öÀûÀ¸·Î °¨¼ÒÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Âµ¥ º» ¿¬±¸¿¡¼ ±ÔÁ¤ÇÑ Ç³Èµî±ÞÀÇ °æ°è¿¡¼ °¨¼ÒÆøÀÌ Å©°Ô Áõ°¡ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ÇÑÆí, °ø³»ÀçÇϽÃÇè °á°ú·ÎºÎÅÍ ÃßÁ¤µÈ °µµÁ¤¼ö¸¦ dzȵµ¿Í °ü·ÃÇÏ¿© ¼öÇàÇÑ ÇöÀå»ïÃà¾ÐÃà½ÃÇè °á°ú¿Í ºñ±³ ºÐ¼®ÇÏ¿© °ËÁõÇÒ ¸ñÀûÀ¸·Î ¿¬±¸ Áß¿¡ ÀÖÀ¸¸ç ÇöÀç±îÁö ¼öÇàµÈ 1Á¾ÀÇ Ç³Èµµ¿¡ ´ëÇÏ¿© ¼öÇàµÈ ÇöÀå»ïÃà¾ÐÃà½ÃÇè °á°ú¿Í ºñ±³ÇÑ °á°ú µÎ °á°ú°¡ ºñ±³Àû Àß ÀÏÄ¡ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³ª °ø³»ÀçÇϽÃÇè °á°ú¸¦ ÀÌ¿ëÇÑ °µµÁ¤¼ö ÃßÁ¤¹ýÀÌ ½Å·Ú¼ºÀÌ ÀÖ´Â °ÍÀ¸·Î È®ÀεǾú´Ù. |
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| The evaluation of the reliable strength and deformation characteristics of weathered granite masses is very important for the design of geotechnical structure under working stress conditions. Various types of laboratory test such as triaxial compression test can be performed to determine the strength parameters. However, it is very difficult to obtain the representative undisturbed samples on the site and also the rock specimen cannot represent rock mass including discontinuities, fracture zone, etc. This study aims to investigate the strength and deformation characteristics of granite masses corresponding to its weathering and develop a practical strength parameter evaluation method using the results of PMT. To predict weathering intensity and strength parameters of the weathered granite masess in the field, various laboratory tests and in-situ tests including field triaxial test and PMT are carried out. Based on the results of weathering index tests, the classification method is proposed to identify the weathering degree in three groups for the weathered granite masses. Using the analytical method based on the Mohr-Coulomb failure criteria and the cavity expansion theory, the strength parameters of rock masses were evaluated from the results of PMT. It shows that weathering intensity increases with decreasing the strength parameters exponentially. The strength parameters evaluated with the results of PM almost coincide with the results of field triaxial test. |
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| Ű¿öµå |
| In-situ triaxial test;Pressuremeter test;Weathered granite masses;Weathering intensity; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.19, no.2, 2003³â, pp.227-236
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311921640869)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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