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Çѱ¹Áö¹Ý°øÇÐȸ / v.23, no.7, 2007³â, pp.5-16
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¼öÁß »ê»çÅ ¸ð´ÏÅ͸µÀ» À§ÇÑ Áö¹Ý¹°¸®Å½»ç±â¼ú
( Geophysical Techniques for Underwater Landslide Monitoring ) |
| Âä²ÎÈË;ÀÌâȣ;ÀÌÁ¾¼·; °í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇаú;°í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇаú;°í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇаú;
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| ¼öÁß »ê»çÅÂÀÇ °üÃø ¹× Á¶»ç´Â »ê»çÅÂÀÇ ¸ÞÄ¿´ÏÁòÀÇ ÀÌÇØ, ¼³°è ¹× ½Ã°øÀÇ À¯¿ë¼º, ±×¸®°í ¼Õ½Ç °¨¼Ò¿¡ µµ¿òÀ» ÁØ´Ù. º» ³í¹®Àº ½ÇÇè½Ç Á¶°ÇÀÇ ¼öÁß »ê»çŸ¦ È®ÀÎÇϱâ À§ÇÏ¿© Àü±âÀúÇ×, ÃÊÀ½ÆÄ ¹Ý»ç À̹ÌÁö, ±×¸®°í Àü´ÜÆÄ Åä¸ð±×·¡ÇÇÀÇ 3°¡Áö °íÇØ»óµµ Áö±¸¹°¸®Å½»ç±â¹ýÀ» ¼öÇàÇÏ¿´´Ù. Àü±âÀúÇ× Å½Ä§¿¡ ÀÇÇÑ ÈëÀÇ Àü±âÀúÇ× ÇÁ·ÎÆÄÀÏÀº ¹Ð¸®¹ÌÅÍ ´ÜÀ§ÀÇ ÇØ»óµµ·Î ÈëÀÇ °ø°£Àû ºÐÆ÷ Æò°¡¸¦ À§ÇÑ ÀÚ¼¼ÇÑ Á¤º¸¸¦ Á¦°øÇØ ÁØ´Ù. ÀÓÇÇ´ø½º°¡ ´Ù¸¥ ¹°ÁúÀÇ °æ°è¸éºÎÅÍÀÇ ¹Ý»ç ÀÚ·á¿¡ ÀÇÇÑ ÃÊÀ½ÆÄ ¹Ý»ç À̹ÌÁö´Â ¹Ð¸®¹ÌÅÍ ´ÜÀ§ÀÇ ÇØ»óµµ·Î »ç¸é Çü»ó ¹× ½Ã·á Ãþ»óÀ» ŽÁöÇØ ³¾ ¼ö ÀÖ´Ù. Àü´ÜÆÄ À̵¿ ½Ã°£À¸·ÎºÎÅÍ ¾ò¾îÁö´Â °æ°è Á¤º¸ÀÇ ¿ª»ê¿¡ ÀÇÇÑ Çȼ¿´ÜÀ§ ¼öÁß »ê»çÅÂÀÇ À̹ÌÁö¸¦ ¸¸µé ¼ö ÀÖ´Ù. ½ÇÇè°á°ú ÃÊÀ½ÆÄ À̹ÌÁö¿Í Àü±âÀúÇ×Àº ¼·Î º¸¿ÏÀûÀÎ Á¤º¸¸¦ Á¦°øÇÒ ¼ö ÀÖÀ¸¸ç, Àü´ÜÆÄ Åä¸ð±×·¡ÇÇ À̹ÌÁö¿Í ¿¬ÇÕÇÏ¿© ¼öÁß »ê»çÅÂÀÇ 3Â÷¿ø À̹ÌÁö¸¦ ¾òÀ» ¼ö ÀÖ´Ù. º» ¿¬±¸´Â Áö±¸¹°¸®Å½»ç±â¹ýµéÀÌ ¼öÁß »ê»çÅ ¹× ÇØ¾ÈÀÇ °ø°£Àû ºÐÆ÷ÀÇ Å½Áö¿¡ È¿°úÀûÀÎ ±â¹ýÀÌ µÉ ¼ö ÀÖÀ½À» º¸¿©ÁØ´Ù. |
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| The monitoring and investigation of underwater landslide help to understand its mechanism, increase the usefuless of design and construction and reduce the losses. This paper presents three high resolution geophysical techniques electrical resisitance, ultrasonic wave reflection imaging, and shear wave tomography conducted to determine the lab-scaled submerged landslide. Electrical resistance profiles of a soil mass obtained by an electrical resistance probe provide detailed information to assess the spatial distribution of the soil mass with milimetric resolution. An ultrasonic wave image obtained by recording the reflections from interfaces of different impedance materials permits detecting layers and landslide with submilimetric resolution. The pixel based image of immersed landslides is created by the inversion of the boundary information achieved from the traveling time of shear waves. The experimental results show that the ultrasonic wave imaging and the electrical resistance can provide complementary information; and their association with S-wave tomography image can produce a 3-D view of the underwater landslide. This study suggests that geophysical techniques may be effective tools for the detection of the underwater landslides and spatial distribution offshore. |
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| Ű¿öµå |
| Electrical resistance;Impedance mismatch;Shear waves;Tomography;Ultrasonic reflection;Underwater landslides; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.23, no.7, 2007³â, pp.5-16
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200734514821376)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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