|
|
|
Çѱ¹Áö¹Ý°øÇÐȸ / v.9, no.4, 1993³â, pp.103-118
|
1991³â ¿ëÀÎ -¾È¼º Áö¿ª »ê»çÅ ¿¬±¸
( A Study on Yongin -Ansung Landslides in 1991 ) |
| ¹Ú¿ë¿ø;±è°¨·¡;¿©¿î±¤; ¸íÁö´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;¸íÁö´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú, ¸íÁö´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| ÀÌ ³í¹®Àº 1991³â 7¿ù 21ÀÏ¿¡ °æ±âµµ ¿ëÀαº°ú »ê»çÅ¿¡ ´ëÇÑ ÀÚ·á ¹× ÇöÀåÁ¶»ç °á°ú¸¦ Åä´ë·Î 2600¿© °³¼Ò¿¡ »ê»çÅ ¸éÀûÀÌ 466ha ÀÌ»óÀ̾ú´Ù. ÇÑ »ê»çÅ´ ´Ü½Ã°£ÀÇ ÁýÁßÈ£¿ì¿¡ ÀÇÇÏ¿© À¯¹ßµÈ ¾È¼º±º ÀϺΠÁö¿ª¿¡ ÁýÁßÈ£¿ì¿¡ ÀÇÇÏ¿© ¹ß»ýÇÑ ÀÛ¼ºÇÑ °ÍÀÌ´Ù. ÀÌ Áö¿ªÀÇ »ê»çÅ ¹ß»ý±Ô¸ð´Â Á¶»ç °á°ú ¹àÇôÁø ¹Ù¿¡ ÀÇÇϸé ÀÌ Áö¿ª¿¡ ¹ß»ý °ÍÀ¸·Î¼, ´çÀϿ췮ÀÌ 114mmÀÌ»óÀ̰í ÃÖ´ë½Ã ¿ì·®ÀÌ 40m ÀÌ»óÀÎ Áö¿ª(¸é´ÜÀ§)¿¡¼ »ê»çŰ¡ ¹ß»ýÇÏ¿´À¸¸ç ÃÖ´ë½Ã¿ì·®ÀÌ 62mm ÀÌ»óÀÎ Áö¿ªÀº ¸ðµÎ »ê»çŰ¡ ¹ß»ýÇßÀ½À» ¾Ë ¼ö ÀÖ´Ù. ´ÞºÀ»ê ÀÏ´ë¿¡ ´ëÇÑ ÇöÀåÁ¶»ç¿¡ ÀÇÇÑ ÇüÅÂÇÐÀû °ËÅä¿¡ ÀÇÇϸé,Ȱµ¿±íÀÌ ºñ(D/L)¸¦ »ç¿ëÇÏ´Â WalkerÀÇ ºÐ·ù¹ýÀ» »ç¿ëÇßÀ» ¶§, 20%°¡ ÆòÇàȰµ¿, 50%°¡ À¯µ¿ ÇüÅ·ΠºÐ·ùµÇ¾úÀ¸¸ç 30%´Â À¯µ¿°ú Ȱµ¿ÀÇ Áß°£ÇüÅ¿´°í ȸÀüȰµ¿À¸·Î ºÐ·ùµÇ´Â °ÍÀº °ÅÀÇ ¾ø¾ú´Ù. »ê»çÅÂÀÇ 90%ÀÌ»óÀÌ »ç¸é °æ»ç 20$^{circ}$-40$^{circ}$, Ȱµ¿»ç¸é±æÀÌ 50mÀÌÇÏ¿¡¼ ¹ß»ýÇÏ¿´°í, »ç¸éȰµ¿½Ã¹ßÁ¡Àº 50%°¡ 7ºÎ ´É¼± ÀÌ»ó ¿¡ À§Ä¡Çϰí ÀÖ¾ú´Ù. ÀÌ Áö¿ª¿¡¼´Â ¼öÁ¾¿¡ µû¸£´Â »ï¸²ÀÇ »ê»çÅ ¾ïÁ¦È¿°ú»ó Â÷À̸¦ º¼ ¼ö ¾ø¾ú´Ù. |
|
| This paper presents the results of investigation of the rainstorm induced landslides occurred in the districts of Yongin, Ansung and Osan on July 21st 1991. More than two thousand and sirs hundred landsilides took place during or after a 3-t hours heavy rainfall and about 466 ha mountain slopes were affected by slope failures. The result of study on the effect of-iainfall on landslides shows that landslides began to occur where daily and maximum hourly rainfall exceeded 114mm and 40mm respectively, and all districts (myun) where maximum hourly rainfall exceeded 62mm were affected by landslides. The morphological study on landslides on Talbongsan area reveals that, by Walker's classi fication using D IL(failure depth ratio), 50% of the landslides were classified as flows, 20% of them as translational slides, and 30% were between flow and slide and there were few rotational slides. Over 90% of landslides tookplace at slopes of 20$^{circ}$-40$^{circ}$ in slope and 50m or shorter in length And more than 50% of the crown of slides locates at higher than 0.7 times of slope hight. Any differences between the kinds of tree in landslide resisting effects are shown in this case. |
| |
| Ű¿öµå |
|
| |
|
|
 |
|
Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.9, no.4, 1993³â, pp.103-118
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199311920445243)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|