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Çѱ¹Áö¹Ý°øÇÐȸ / v.22, no.8, 2006³â, pp.63-72
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¿ï»êÁö¿ª ÅðÀû¾ÏÀÇ °µµ ÃßÁ¤¹ý ¿¬±¸ - Á¡ ÇÏÁß °µµÁö¼ö·Î ÀÏÃà ¾ÐÃà°µµ ÃßÁ¤ -
( A Review of Strength Estimation Method on Ulsan Sedimentary Rocks ) |
| ¹Î´ö±â;¹®Á¾±Ô; ¿ï»ê´ëÇб³ °ø°ú´ëÇÐ °Ç¼³È¯°æ °øÇкÎ;µ¿¸í±â¼ú°ø´Ü(ÁÖ), ÅäÁú ¹× ±âÃʱâ¼ú»ç;
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| ÃÊ ·Ï |
| ¾Ï¼®ÀÇ Á¡ÇÏÁß °µµÁö¼ö($I_{s}$)·Î ÀÏÃà¾ÐÃà°µµ(${sigma}_{c}$)¸¦ ÃßÁ¤ÇÔ¿¡ ÀÖ¾î, ASTMÀ̳ª ISRM¿¡¼´Â ¾ÏÁ¾À̳ª ÁöÁúÇÐÀû »ý¼º°úÁ¤¿¡ °ü°è¾øÀÌ Á÷°æ¹æÇâ Á¡ÇÏÁß °µµ($I_{s}//$)ÀÇ 23¹è(ASTM) ȤÀº $20{sim}25$¹è(ISRM)·Î ÃëÇϰí ÀÖ´Ù. ¿©±â¼´Â °æ»óºÐÁöÀÇ ¿ï»ê¿¡¼ äÃëÇÑ ¿¬¾àÇÑ ÅðÀû¾ÏÀÇ ½ÃÇè°á°ú·Î ${sigma}_{c}$¿Í $I_{s}$ÀÇ °ü°è¸¦ Á¦½ÃÇÑ´Ù. ${sigma}_{c}$¿Í $I_{s}$ ½ÃÇè°á°ú ${sigma}_{c}$ÀÇ ÃßÁ¤°ªÀº ¼±Çü ȸ±ÍºÐ¼® º¸´Ù´Â °µµºñ(${sigma}_{c}/I_{s}$)·Î Ç¥ÇöÇÏ´Â °ÍÀÌ ÃßÁ¤¿ÀÂ÷°¡ Àû¾ú´Ù. ±×¸®°í ¾à¸éÀÌ ³»Æ÷µÈ ÅðÀû¾ÏÀÇ °µµºñ´Â ${sigma}_{c}/I_{s}//$º¸´Ù ${sigma}_{c}/I_{s}{ot}$ÀÇ ÃßÁ¤¿ÀÂ÷°¡ ´õ ÀÛÀ¸¹Ç·Î ${sigma}_{c}$ÃßÁ¤Ä¡´Â ASTMÀ̳ª ISRM¿¡¼ Á¦½ÃÇÑ °ªº¸´Ù ³·°Ô ÃëÇØ¾ß Âü°ª¿¡ °¡±î¿ï ¼ö ÀÖ´Ù´Â °á·ÐÀ» ¾ò¾ú´Ù. |
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| In the ASTM and ISRM, an uniaxial compressive strength(${sigma}_{c}$) has been estimated to be 23(ASTM) or $20{sim}25$(ISRM) times of point load strength index using a diametral test regardless of the rock rating or geological conditions. This paper presents a relationship between $I_{s}$ and ${sigma}_{c}$ of a weak sedimentary rocks on Ulsan of the Kyung-Sang Basin in Korea. In the results of 291 for ${sigma}_{c}$ test and 2310 for $I_{s}$ test from 77 spots, the predicted errors of ${sigma}_{c}$ determined by strength ratio of ${sigma}_{c}/I_{s}$ have been relatively less than those determined by linear regression analysis. And in case of weak sedimentary rocks such as mudstones, shales and sandstones, ${sigma}_{c}$ should be lower than those suggested by ISRM and ASTM. |
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| Ű¿öµå |
| Linear regression analysis;Mudstone;Point load strength index;Sandstone;Shale;Uniaxial compressive strength; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.22, no.8, 2006³â, pp.63-72
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200634741580662)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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