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Çѱ¹Áö¹Ý°øÇÐȸ / v.14, no.6, 1998³â, pp.17-32
°¡¹è¼ö·Î Åͳΰø»çÀÇ ÅðÀû¾Ï »ç¸é ¾ÈÁ¤È­ ¼³°è
( Design of Sedimentary Rock Slopes in River Diversion Works )
; µ¿¾Æ°Ç¼³ Åä¸ñ¼³°èÆÀ;
 
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Bakun ¼ö·Â¹ßÀü °ø»ç°èȹÀº 2.520MWÀÇ ¼ö·Â¹ßÀü¼Ò °Ç¼³°ú ¿©±â¿¡¼­ »ý»êµÈ Àü±â¸¦ ¸»·¹ÀÌ½Ã¾Æ ¹Ýµµ¿Í »ç¶ó¿ÎÁÖ·Î °ø±ÞÇϱâ À§ÇÑ ¼ÛÀü¼± °ø»ç·Î ±¸¼ºµÈ´Ù. ¹ßÀü¼Ò´Â 210m ³ôÀÌÀÇ ÄÜÅ©¸®Æ® Áö¼öÆÇÇü »ç·Â´ïÀ¸·Î °Ç¼³µÇ¸ç, ´ï°ú ¼ö·Â¹ßÀü½Ã¼³À» °Ç¼³Çϱ⿡ ¾Õ¼­ Balui°­À» ¿ìȸ½Ã۱â À§ÇØ ¿¬Àå 1,400m, ³»ºÎ Á÷°æ 12m, °»±¸Áö¿ª¿¡¼­ ÅÍ³Î Æø 16mÀÎ °¡¹è¼ö·Î ÅͳΠ3°³°¡ ¿­´ë¿ì¸² ÅðÀû¾Ï Áö´ë¿¡ °Ç¼³Áß¿¡ ÀÖ´Ù. º» ³í¹®Àº °¡¹è¼ö·Î ÅͳÎÀÇ ÀÔ.Ãⱸ Áö¿ª¿¡ Á¸ÀçÇÏ´Â ´ë±Ô¸ð ¾Ï¹Ý»ç¸é¿¡ ´ëÇÑ ¾ÈÁ¤¼º Æò°¡¿Í ÀÌ¿¡ µû¸¥ ÃÖÀû ¼³°è¹æ¹ý¿¡ ´ëÇÏ¿© ³íÀÇÇÏ¿´´Ù ¾ÈÁ¤¼º Æò°¡¿¡ Àû¿ëµÈ Áö¹Ý°øÇÐÀû º¯¼öµéÀº RMR system¸¦ ±âÃÊ·Î ÇÏ¿© Á¤ÀÇµÈ 4°³ÀÇ ¾Ï¹ÝÀ¯Çü(RMT: Rock Mass Type)¿¡ µû¶ó °áÁ¤µÇ¾úÀ¸¸ç, »ç¸é¿¡ ´ëÇÑ ¾ÈÁ¤¼º Æò°¡´Â Àüü »ç¸é°ú Áö¿ªÀû »ç¸éÀ¸·Î ±¸ºÐÇÏ¿© ¼öÇàµÇ¾ú´Ù. Àüü»ç¸é¿¡ ´ëÇÑ ¾ÈÁ¤¼º Æò°¡¿¡¼­´Â ·Ïº¼Æ®, ¼ôÅ©¸®Æ®°¡ ¾ø´Â »óÅ¿¡¼­ ¾ÈÁ¤¼º ºÐ¼®ÀÌ ¼öÇàµÇ¾úÀ¸¸ç, Àüü »ç¸é³»ÀÇ ÀϺΠºÒ¾ÈÁ¤ÇÑ Áö¿ª¿¡ ´ëÇØ¼­´Â ¼Ò´Ü ¹× ·Ïº¼Æ®, ¼ôÅ©¸®Æ®°¡ ½Ã°øµÈ »óŸ¦ °í·ÁÇÏ¿© ÀÌ¿¡ ´ëÇÑ ¾ÈÁ¤Çؼ®À» ¼öÇàÇÏ¿´°í. Áö¼ÓÀûÀÎ °èÃøÀ» ½Ç½ÃÇÏ¿´À¸¸ç, ºÒ¾ÈÁ¤ÇÏ¿© ºØ±«µÈ ºÎºÐÀº ¼³°è º¯°æÇÏ¿© º¸´Ù ¾ÈÀüÇÏ°Ô ½Ã°øÇÏ¿´´Ù.
The Bakun hydroelectric project includes the construction of a hydroelectric power plant with an installed capacity of 2,520MW and a power transmission system connecting to the existing transmission networks in Sarawak and Western Malaysia, The power station will consist of a 210m height concrete faced rockfill dam. During the construction of the dam and the power facilities the Balui river has to be diverted by three diversion tunnels with a length of some 1,400m each. The inner diameter of the tunnels is 12m and the tunnel width is 16m at the portal area. This paper describes the stability analysis and design methods for the open cut rock slopes in the inlet and outlet area of the diversion tunnels. The geotechnical parameters employed in stability calculations were given as a function of four. defined Rock Mass Types (RMT) which were based on RMR system from Bieniawski. The stability calculations procedure of the rock slopes are divided into two stages. In the first stage, it is calculated for the stability of each 'global' slope without any rock support and shotcrete system. In the second stage, it is calculated for each 'local'slope stability with berms and supported with rock bolts and shotcrete. The monitoring instrumentation was performed continuously and some of the design modification was carried out in order to increase the safety of failed area based on the unforeseen geological risks during the open cut excavation.
 
Ű¿öµå
Rock slope stability;Rock mass type;Bakun hydroelectric project;Diversion tunnel. Plane Failure;Wedge Failure;
 
Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.14, no.6, 1998³â, pp.17-32
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199811921757654)
¾ð¾î : ¿µ¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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