Microsoft Word - KSR2012A009.doc

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1 YWXY G ºG ºG t G G GGGGGGGGGrzyYWXYhWW`G v Ž v o p m k v Residual Settlement of trackbed on soft ground Management Program Development ã ä ã ä ãã Sang Jae Han*, Jae Hyun Jung*, Won Il Choi** G G Abstract Trackbed of high-speed railway adopted concrete slab strictly restrict allowable residual settlement criterion( < 25mm). Honam high-speed railway under construction of roadbed, because foundation consisted of organic clayey soils show a trend of consolidation settlement, must be determine satisfaction whether allowable residual settlement using the hyperbolic method, Asaoka method, Hoshino method, Terzaghi Curve fitting method of settlement estimation methods. Compared to a typical soft ground settlement, because allowed settlement of high-speed railway demands are very small, estimated residual settlement may vary depending on the analyst's perspective. In this paper, introduce to program automatically calculate the highest correlation of measurement and analysis data, and estimated residual settlement managed automatically. Also, results were compared using the measured settlement data. Keywords : trackbed, soft ground, residual settlement ï ªp ¹ˆ ¼ˆ v» o m p ¹ v ƒ ¹ v «ƒ m ƒ ƒ ƒ Žv ƒ y et» o p zp± ƒ ˆ ƒx Ž x ¹ˆ x «wxd w x l ªp p k v Ž v k q et zƒ ekzƒ k Ž rzƒ ˆ n p kº ekƒy t ƒ ˆ zƒ o k v p m m k v r ˆ lvˆ zƒ v Ž v o k ää ï ¹ v ƒ ¹ ªp p r v o Ÿ m mq v ã Ó Ñ öïôðõ Ó ã Ó Ñ öïôðõ Ó çæ ãéééêëêæéééäéêäêëã ãã Ó ã Ñáçç Ó Õ Ó ü

2 p n ½ ¹ Ž v z ƒ z³ ºv xd k n et m o vƒ v r o kp z ƒ ˆ ƒd p Ž v mˆ ƒ ˆ p zºˆƒ d Ÿp³ ƒ v v et v p ˆ p vdˆ n Žp d v p v v k º p v k zƒ m m k v r [1] y v m k v p pº o zƒv ¹ v s p ˆ ª«v m ƒ«xm k m pº ƒvº ƒ m ää ïôíïø äää ðñ ñ Ïøù o k³ wx ˆ ˆ p wx m wx wxd ¹ ˆ npv«m³ wx m v o p k Žv x ˆ ƒx Asaokax Hoshinox d ƒ v k wx ˆ ˆ pº Ž x[2] 1972 ªx «ƒ p «ƒx ª d ¹ ˆ p º wx m «ƒx º «ƒx Justo & Durand(2000)wx[3] (2009)[4] wx Justo & Durand(2000) ˆ xº epx¹ ƒªp k vr wx p º et ƒ m± p ƒ Ž o kp³ r0.7mm mq et y m k v Žv x º o k m m k ƒ Ÿvy ƒ k Žv x ƒ vº Žv p x Ž z Ÿvy ƒx¹ zd Žv x m o p r xd y Ÿd Ž et ƒ umy m k ƒ p v ƒ ˆ v ƒ x Žv ƒ GeoImproved º ry m k m p

3 äää ïôíïø äääääï (2007)d ˆ v p z p m vr y m kv ¹ p m v z n Table 1 r x n o np p vs pˆ g nv zƒ p my n zƒ mgis v m GIS npdb m Table 1 z (2 ) ¹ p DB DB DB Windows XP, Internet Explorer 6.0 MySQL MSSQL 2005 Visual Basic 6.0, ASP.NET 3.5 Framework(VB.net), ASP 2 400km/h 0 DB,, GIS DB äääääó øõà m k ƒ v y p m k v s p ˆ d 2 m ƒ Fig. 1(a) ³ p m k ºr Fig. 1(b) v y p m k v vµ ˆ lv o k Fig. 1(c) vs pˆ v qƒ ƒ ˆˆ p v y p m k mz l pgis v m o ˆ ƒx Asaokax Hoshinox ƒ¹ ƒxd m k ¹ R 2 ª ƒ m k zž m o m v m¹ Ž v ˆ ƒx R 2 r ¹ˆ x Ž x m Ž

GGGG GGGG G (a) v s p ˆ ºr (b) v y p m k( o ) (c) v s p m k Fig.

ˆ m l r l¹º Table 2 Table 2 ¹ 400km/h xd ¼ v v µ ˆ n l ¹º [m] 2-2 54k000~56k700 119 43-20

3-4 100k000~110k280 3,272 22 20 21 4-1 110k280~121k320 5,024 10-18 4-2 121k320~128k000

4 GGGG GGGG G (a) v s p ˆ ºr (b) v y p m k( o ) (c) v s p m k Fig. 1 m k ºrG G ää ðææ ø Ï äää ðææ l ˆƒt ¹ xd ¼ v m n v µ ˆ np l ¹ vˆ r v ±v vƒm sd n ºy Ž et v ˆ m l r l¹º Table 2 Table 2 ¹ 400km/h xd ¼ v v µ ˆ n l ¹º [m] k000~56k k700~66k k300 ~76k960 4, k960 ~82k000 4, k000~110k280 3, k280~121k320 5, k320~128k000 2, äää ñ í ü o k vˆ v n v xm o k ˆ zƒ ¹ ºy vƒ n et ˆnƒ o k ƒ ƒ n» npzƒ zƒ 400km/h xd¼ v m r k ƒ ƒ n»w d p l xm2 r ƒ

5 xm wx ˆ ƒx x x zƒ ª ƒ r o k ˆ zƒ Table 3 25mm m ¹ ƒ p m «z (2-2 ) o k 21.4mmmƒ v sk Ž r o k m wx ¹ wx r» ƒ v Ÿ l et ƒ nˆ o k ³ Ž ekƒ ƒ ºƒ Ž qž¹ ˆ o k³ ˆnƒ z rƒ n» ³ n Ž km700 Table 3 o k ³ G [m] [mm] [mm] ~ < 25 O.K 55km < 25 O.K ~ < 25 O.K km < 25 O.K 114.1~ O.K 81km O.K km km < 25 O.K ~ O.K O.K 5.15 < 25 O.K 197.0~ O.K O.K 1.41 < 25 O.K km ~ < 25 O.K km ~ < 25 O.K ääñï v Ž v o p m k z 2 v p DB p º o n p v GIS v vs p ˆ v ¹ p l o k ˆ ³. m k v Ž. G wx ˆ ƒx, Asaoka x, Hoshino xd r ½ y m k ƒ (R2) ª ƒ m k z Ž m o m U (2) y m k DB v zƒ np ¹ v s p ˆ v qƒ ƒ ˆˆ v np ºr GIS v m

6 ˆ m ƒ v m v ¹ zƒ m. (3) ¹ 400km/h xd ¼ v n 162 v µ ˆ n 137 y m k DB l r, v ˆ np m l. (4) y m k v ˆ v n v xm ƒ k l 2 rž o k ˆ zƒ. o k 21.4mm(2-2 )m o (25mm) s p m zƒ r, ƒ ºƒ Ž q et ƒ n» o ³ p. Õ t z ƒ kˆx v º m Ñö [1] Chan-Yong Choi, Dae-Sang Kim, Jin-Wook Lee, Min-Ho Shin (2007), 2007 Autumn Conference of the Korean Society for Railway, pp. 496~500. [2] (1976), Œ 32 pp. 15~18. [3] Justo, J. L. and Durand, P. (2000), Settlement-time behavior of granular embankments, International Journal for Numerical and Analytical Methods in Geomechanics, vol.24, pp [4] (2008), Ž ¼ ¹ nm n v o ƒ, ƒ t, ƒ º º ª «ƒ

Microsoft Word - KSR2012A103.doc

Microsoft Word - KSR2012A103.doc YWXY º º t rzyywxyhxwz ¼ ƒx p y v ³ Evaluation on Long-Term Behavior of Reinforced Railroad Subgrade with Bending Stiffness Wall Õá ã äõ ã äø ãã äø ãã Dae-Sang Kim *, Ung-Jin Kim *, Jong-Sik Park *, Seong-yong