A Case Study on the Restoration of Collapsed Geosynthetics Reinforced Soil Wall Using Limit Equilibrium and Numerical Analyses

ISSN 1229-2427 (Print) ISSN 2288-646X (Online) http://dx.doi.org/10.7843/kgs.2013.29.11.107 ळćܤЛèलॸǷϬܫ  ۔29ĕ 11ॣ 2013Ǭ 11٫ pp. 107 G 118

JOURNAL OF THE KOREAN GEOTECHNICAL SOCIETY Vol.29, No.11, November 2013 pp. 107 G 118

㢧ဏ㜔㥠㢿⑨၇# ╣ㆣ㢿⑨⤛# ⪣㢧# ⃠ၿᝧ#

‿འ㓫# ⦄ # ⁀Ⴗ# ⏷ᮋ⤛# ။㢧# ⤻Ⴗ

A Case Study on the Restoration of Collapsed Geosynthetics Reinforced Soil Wall Using Limit Equilibrium and Numerical Analyses

ㅇ ⓼ ⲏ¹ Won, Myoung-Soo ᢷ 䂌 ㍳² Kim, Hyeong-Joo ᢷ へ ⵗ³ Kim, Young-Shin 㟓 ㊌ 䂯⁴ Choi, Jeong-Ho

Abstract

Geosynthetic reinforced soil (GRS) walls have been increasingly applied recently due to its numerous geotechnical engineering applications. However failure occurs in some cases of constructed GRS walls. These GRS wall failures are mostly due to the unpredictable characteristics of intensive rainfall. Hence, the need for new and innovative ideas for rehabilitation methods has been getting attention. This paper introduces a case study for the design and restoration method of collapsed GRS wall using Limit equilibrium and Numerical Analyses. Restoration method includes: (1) soil nailing without backfill excavation and (2) reconstruction with GRS wall after collapsed backfill excavation. Analyses results show minimal horizontal displacements and shear strain on the reinforced concrete facing for the restoration case with soil nailing. On the other hand, horizontal displacements are developed in the middle of the mortar block facing and shear strains are developed at the bottom facing with spiral curves for the reconstructed GRS wall after collapsed backfill excavation. Therefore, the collapsed GRS wall was restored with the soil nailing without backfill excavation and its construction procedures are discussed in this paper.

⧟# # # ⴋ

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ॢćथ঍३Եę
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қԵॠي
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דێȐێτڷͿ

҄ĵॠٕڷ϶, ێʹۆ
֨ėę܁ں
ՙÒॠٕɰ.

Keywords : Soil nailing, GRS wall, Reinforcement, Geogrid, Failures, Restoration

1ⲯ㬦⭪, ሊ╊រ㧳ᇪ# 㘺ὃᆏ㧳ᆖ# ⴊᇪ⚲# (Member, Assistant Prof., Dept. of Civil Engrg., Kunsan National Univ., Tel: +82-63-469-4753, Fax: +82-63-469-4791, [email protected], Corresponding author, ᇪ❺ⲚⰪ)

2ⲯ㬦⭪, ሊ╊រ㧳ᇪ# 㘺ὃᆏ㧳ᆖ# ᇪ⚲# (Member, Prof., Dept. of Civil Engrg., Kunsan National Univ.)

3ⲯ㬦⭪, ሊ╊រ㧳ᇪ# 㘺ὃ㫲ᅗᆏ㧳√# ₯╆ᆖⲯ# (Member, Ph.D Candidate/P.E., Dept. of Civil and Environmental Engrg., Kunsan National Univ.) 4⋞㬦⭪, ሊ╊រ㧳ᇪ# 㘺ὃ㫲ᅗᆏ㧳√# ₯╆ᆖⲯ# (Member, Ph.D Candidate, Dept. of Civil and Environmental Engrg., Kunsan National Univ.)

*→# ᘖῒ⩪# រ㧶# 㘺⯲Ḗ# ⭪㧲ᜮ# 㬦⭪⯚# 2014ᗞ# 5⭮# 31Ⱆዦ⹚# ኒ# ᕎ⭃⯞# 㧳㬦ᳶ# ↎ᕎⶖ❶ዊ# ₮ᰧᝢ᝾. ⲚⰪ⯲# ᄚ㘺# ᕎ⭃ᆖ# 㨂፲# ᘖῒ⹫⩪# ᄦⱆ㧲⪆# ᥶ṗᝢ᝾.

Ilj1# 41# Vdwhoolwh# lpdjh# ri# wkh# froodsvhg# JUV# zdoo# orfdwlrq

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1. ⑧# ᮫

҃Ìࢹ
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ə
ңĨə
ܳͿ
ݚܼ঒ڍق
şۍʽ
ìڷͿ
҃ČʼČ
ە ɰ(Kwon, et al., 2009; ֪޻æ
ˣ, 2004; Yoo and Jung, 2006; Yoo, et at., 2005; Cho, et al., 2006; Chae, et al., 2004; Han, et al., 2005, Hong, et al., 2013). ێъۺڷͿ

ңĨʽ
҃Ìࢹ
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Han et al.(2005)ڹ
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܃؋ॠٕɰ.

Yoo and Jung(2006)ڹ
ݚܼÌڍͿ
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Ձں
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Ԑͻε
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Kim, et al.(2013)ę
Won, et al.(2012a, 2012b)ڹ
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؍Č
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ɰս ۆ
Ԑͻε
ՙÒॠٕɰ. Won, et al.(2012)ڹ
דێȐێτ ں
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ԜࢗͿ

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ۋ
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Ը܁ॠČ
Ը܁ʽ
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2. 㢇㢿# ‿འ㓫# ⦄ # 㥏⫰㥏㦴#

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ԐڌʼČ
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Fig.

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3. 㢇㢿# ⁀Ⴗὴ⢓

ۻϸҸ΀ę
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À܁ॠٕɰ. דێȐێτں
টڌॢ

क़३٬ѹ
҄ĵə
דێȐێτ
҃Ì
G҃Ìࡓࡾν࣡
ۻ ϸѹߕ
ĵ߹
Gڮ֬
ҙ
թԵ
޽ړ
ф
܁ݓۚغ
տڷͿ

ݕॱʽɰ.

क़३ԜࢗͿ
דێȐێτں
҃Ìॠي
҄ĵॠə
؋ę
क़ ३٬ѹ
҃Ìࢹߕ
܃ä
঳
ۦ֨ėॠə
؋ۆ
҃Ìমęε

Ҽİ, қԵॠş
ڦ३
ۦ֨ėڹ
क़३Ԝࢗۆ
҃ÌۦͿ
ң Ĩ
ۻę
Ïۋ
ѕ࠘ॠə
ìڷͿ
À܁ॠٕɰ. ɰχ, क़३٬

ѹ
҄ĵ
؋ڹ
Ͽ˃
ѕϸ
ˏ޽ړۦۆ
ڮ֬ں
ČͲॠي
٬

ѹ
ȭۋε
ɾߣ
6.8mقԴ
5.8mͿ
ćনॠٕɰ. Fig. 5ə

ңĨ
ۻę
঳
ŔνČ
҄ĵ
Ԝࢗۆ
٬ѹں
ǣࢍǴČ
ەɰ.

4. ‿འ㧳၇# ⃏⑨

4.1 㢧ဏ㜔㥠㢿⑨⤛# ⪣㢧# ⢓⭠࿋㓫

क़३
٬ѹ
҄ĵ
؋ق
ʂॢ
҃Ìমęə
ॢćथ঍३Ե

ق
ۆॢ
ڙ঒টʴę
ս࠘३Եق
ۆॢ
äʴқԵڷͿ
Ҽ İॠČ, ÁÁق
ʂॢ
३Եڹ
ѩڌ
॒ͿŔ͖ۍ
Talrenę

Midasε
ۋڌॠٕɰ. ڙ঒টʴ
؋܁êࢹٮ
ս࠘३Եق

Ԑڌʽ
ݓъ܁սə
Table 3ę
Ïɰ. ३Եۆ
ठۆε
ڦ३

թԵ޽ړۦٮ
şܕ
Ձࢹۦ(৚) ŔνČ
ˏ޽ړۦə
Ͽ˃

ÏČ, ݓॠսڦə
ۻϸѹߕ
şߣϸ
؉͒ق
ڦ࠘ॠə
ì ڷͿ
À܁ॠٕɰ.

क़३
٬ѹ
ңĨۆ
ݔۿۺۍ
ڙۍ
ܼۆ
ॠǣÀ
ݓ١Ŕ ν˚
҃Ìۦۆ
ࣷɳۋдͿ
ۋ
ٍĵقԴə
ܓԐʽ
ڮ֬

ϸ(Fig. 5 ޷ܓ)ں
ࣷĨϸڷͿ
À܁ॠČ
ݓ١Ŕν˚
ࣷ

ɳۋ
٬ѹۆ
؋܁ق
й࠘ə
ٖॳں
êࢹॠٕɰ. Fig. 6 ڹ
٬ѹ
ңĨ
ۻ
ԜࢗقԴ
ݓ١Ŕν˚
ࣷɳ
يҙق
˰δ

थϸࣷĨ
ॢćथ঍३Ե
Āęε
ǣࢍǴČ
ەɰ. ݓ١Ŕ ν˚
ࣷɳ
঳
؋ۻڱڹ
0.73ۋǣ
ࣷɳ
ʼݓə
؍ڹ
ąڍ ۆ
؋ۻڱڹ
4.24Ϳ
ǣࢍǣČ
ەر
ݓ١Ŕν˚
ࣷɳۋ

٬ѹ
ңĨۆ
ܳڅڙۍۋČ, ݓ١Ŕν˚
҃Ìق
˰δ
؋

ۻڱ
ÒԸমęə
ই۹ॢ
ìڷͿ
ࣺɳʽɰ.

Fig. 7ڹ
Fig. 5ق
ǣࢍǶ
क़३٬ѹ
҄ĵ
ভɳϸʪق

ʂॢ
थԜ֨
ڙ঒টʴ
؋܁êࢹ
Āęۋɰ. ؋܁êࢹ

Āę
דێȐێτں
টڌॢ
҄ĵ
؋ۆ
؋ۻڱڹ
1.76,

҃Ìࢹߕ
܃ä
঳
܃֨ė
؋ۆ
؋ۻڱڹ
1.72Ϳ
ǣࢍ

Ǯɰ. ݓݕ
֨ۆ
ąڍ
דێȐێτں
টڌॢ
҄ĵ
؋ۆ

؋ۻڱڹ
1.52 ŔνČ
ۦ֨ė
؋ۆ
؋ۻڱڹ
1.49Ϳ
Ͽ

˃
şܵ
؋ۻڱ(थԜ֨
1.5, ݓݕ֨
1.1)ں
߿ܔॢ
؋܁

ॢ
ԜࢗͿ
ǣࢍǮɰ. דێȐێτں
টڌॢ
҃Ìڹ
ݓ ١Ŕν˚
҃Ìࢹߕق
߸ÀͿ
דێȐێτۋ
҃Ìʼд Ϳ
ۦ֨ė
؋҃ɰ
؋ۻڱۋ
ࡾó
ǣࢍǦ
ìڷͿ
ࣺɳ ʽɰ.

4.2 ╣ㆣ㢿⑨⤛# ⪣㢧# ྻᜤ⃏⑨

ս࠘३Եڹ
Fig. 8ę
Fig. 9ق
ǣࢍǶ
цٮ
Ïۋ
क़३

҄ĵ
؋ق
ʂ३
ÁÁۆ
֨ėę܁ں
ǣࢍǴʪ΀
ćনॠ

ٕɰ. Fig. 10ڹ
Fig. 8ę
Fig. 9ق
ǣࢍǶ
цٮ
Ïۋ
Ͽʝ τ
ॠٕں
˺
ьԦʽ
߯ʂսथѺڦε
ǣࢍǴČ
ەɰ. ս

+d,# JUV# zdoo# zlwk# euhdndjh# ri# jhrjulgv

+e,# JUV# zdoo# zlwkrxw# euhdndjh# ri# jhrjulgv

Ilj1# 91# Vwdelolw|# uhvxowv# ri# wkh# JUV# zdoo# zlwk# dqg# zlwkrxw# euhdndjh# ri# jhrjulgv

थѺڦə
דێȐێτڷͿ
҄ĵॢ
ąڍ
ܳͿ
٬ѹۆ
Ԝ ҙقԴ
ьɵॠČ, क़३
҃Ìࢹߕ
܃ä
঳
ۦ֨ėॢ
ąڍ ə
٬ѹۆ
ܼÂҙقԴ
ьԦॠČ
ەɰ. ۋ˞
٬ѹقԴۆ

߯ʂսथѺڦə
דێȐێτ
҃Ìۆ
ąڍ
3.17mmۋČ, ۦ֨ėॢ
ąڍə
43.86mmͿ
ǣࢍǮČ, ۋə
҄ĵʽ
٬

ѹ
ȭۋ(H=5.8m)ۆ
0.054%ٮ
0.756%ق
३ɾॠə
սथ

+d,# Uhkdelolwdwlrq# phwkrg# e|# vrlo# qdlolqj# zlwkrxw# edfniloo# h{fdydwlrq

+e,# Uhkdelolwdwlrq# phwkrg# e|# uhfrqvwuxfwlrq# ri# JUV# zdoo# zlwk# edfniloo# h{fdydwlrq Ilj1# :1# Vwdelolw|# uhvxowv# ri# zdoo# uhkdelolwdwlrq# e|# olplw# htxloleulxp# dqdo|vhv

Ѻڦۋɰ. ߯ʂսथѺڦə
҃Ìࢹ
٬ѹڷͿ
ۦ֨ėॢ

٬ѹقԴ
דێȐێτ
҄ĵ
٬ѹ
҃ɰ
13ѕ
ۋԜ
ࡾó

ǣࢍǣČ
ەɰ.

דێȐێτ
҄ĵ
٬ѹۆ
ąڍ
҃ÌۦͿ
Ҽ֪ۤՁۆ

ۋ঍ߏŖۋ
ԐڌʼČ, דێȐێę
ێߕ঍
҃Ìࡓࡾν࣡

ÌՁ
ۻϸѹߕق
ۆॢ
ĵ՚মęͿ
ۍ३
٬ѹۆ
Ԝҙق

+d,# Gdpdjh# vwdwh +e,# Uhlqirufhg# vrlo# qdlolqj

+f,# Uhlqirufhg# frqfuhwh# idflqj +g,# Edfniloo# iloolqj#

Ilj1# ;1# Dqdo|vhv# vwdjhv# ri# wkh# uhkdelolwdwlrq# phwkrg# xvlqj# vrlo# qdlolqj# zlwkrxw# edfniloo# h{fdydwlrq

+d,# H{fdydwlrq# edfniloo +e,# Iloolqj# 8# uhlqirufhg# od|hu# iurp# erwwrp

+f,# JUV# zdoo# frqvwuxfwlrq# +g,# Vorsh# iloolqj# ri# JUV# zdoo

Ilj1# <1# Dqdo|vhv# vwdjhv# ri# uhkdelolwdwlrq# phwkrg# e|# JUV# zdoo# uhfrqvwuxfwlrq# zlwk# edfniloo# h{fdydwlrq

Դ
Ѻ঍ۋ
ьɵॠČ, ۦ֨ėॢ
٬ѹۆ
ąڍə
҃ÌۦͿ

֪ۤՁۆ
ݓ١Ŕν˚À
ԐڌʼČ
ˏ޽ړۦٮ
҃Ìۦ

ŔνČ
ۻϸҸ΀ۋ
äۆ
ʴ֨ق
֨ėʼə
Ձࢹق
˰δ

ɀۺ
Ѻ঍ڷͿ
ۍ३
٬ѹۆ
ܼÂҙقԴ
սथѺڦÀ
ࡾ

ó
ьɵʽ
ìڷͿ
ࣺɳʽɰ.

Fig. 10(c)ə
И҃Ìࢹ
٬ѹقԴۆ
߯ʂսथѺڦε
ǣ

ࢍǴČ
ەɰ. يşԴ, И҃Ìࢹ
٬ѹڹ
ۦ֨ėॢ
҃Ìࢹ

٬ѹقԴ
ݓ١Ŕν˚
҃Ìۦε
Ԧ͜ॠČ, ۻϸҸ΀ں
࢏

ՁߕͿ
À܁ॢ
ąڍۋɰ. И҃Ìࢹ
٬ѹۆ
߯ʂսथѺڦ ə
113.76mmۋČ, ۋə
ۦ֨ė
҃Ìࢹ
٬ѹۆ
43.86mm

҃ɰ
2.5ѕ
ࡾдͿ
ݓ١Ŕν˚
҃Ì(पԺ)ق
˰δ
սथ Ѻڦ
ز܃মęÀ
ই۹॥ں
؎
ս
ەɰ.

+d,# Uhkdelolwdwlrq# phwkrg# e|# vrlo# qdlolqj# +pd{lpxp# krul}rqwdo# glvsodfhphqw# 614:# pp,

+e,# JUV# zdoo# uhfrqvwuxfwlrq# +pd{lpxp# krul}rqwdo# glvsodfhphqw# 761;9# pp,

+f,# Qrq0uhlqirufhphqw# zdoo# +pd{lpxp# krul}rqwdo# glvsodfhphqw# 4461:9# pp, Ilj1# 431# Krul}rqwdo# glvsodfhphqwv# ri# uhkdelolwdwlrq# zdoo# e|# qxphulfdo# dqdo|vhv

Fig. 11ę
Fig. 12ə
क़३
҄ĵ
٬ѹۆ
֨ėɳć
ѻ

ۻɳѺ঍έں
ǣࢍǴČ
ەɰ. דێȐێτڷͿ
҄ĵॢ
٬

ѹۆ
ąڍə
דێȐێę
҃Ìࡓࡾν࣡
ۻϸѹߕ
҃Ìম

ęͿ
क़३Ԝࢗ҃ɰ
҄ĵ
঳
ۻɳѺ঍έۋ
ۚó
ǣࢍǣČ

ەɰ. ҃Ìࢹ
٬ѹڷͿ
ۦ֨ėۆ
ąڍə
ߣş
ĵ߹ɳćق Դə
ؓՁࢹ
মęͿ
Çՙॠǣ
ȭۋÀ
ݒÀ॥ق
˰͆
ۻɳ

Pd{lpxp# vkhdu# vwudlq/#ʼn_{Ļ À ´Ë}# @# 31348 Pd{lpxp# vkhdu# vwudlq/#ʼn_{Ļ À ´Ë}# @# 31348

+d,# Gdpdjh# vwdwh +e,# Uhlqirufhg# vrlo# qdlolqj

Pd{lpxp# vkhdu# vwudlq/#ʼn_{Ļ À ´Ë}# @# 31344 Pd{lpxp# vkhdu# vwudlq/#ʼn_{Ļ À ´Ë}# @# 31344

+f,# Uhlqirufhg# frqfuhwh# idflqj +g,# Edfniloo# iloolqj#

Ilj1# 441# Vkhdu# vwudlq# rq# wkh# zdoo# uhkdelolwdwlrq# e|# vrlo# qdlolqj# zlwkrxw# edfniloo# h{fdydwlrq

Pd{lpxp# vkhdu# vwudlq/#ʼn_{Ļ À ´Ë}# @# 31354 Pd{lpxp# vkhdu# vwudlq/#ʼn_{Ļ À ´Ë}# @# 3134;

+d,# H{fdydwlrq# edfniloo +e,# Iloolqj# 8# uhlqirufhg# od|hu# iurp# erwwrp Pd{lpxp# vkhdu# vwudlq/#ʼn_{Ļ À ´Ë}# @# 31363 Pd{lpxp# vkhdu# vwudlq/#ʼn_{Ļ À ´Ë}# @# 3136<

+f,# Frqvwuxfwlrq# JUV# zdoo +g,# Vorsh# iloolqj# ri# JUV# zdoo

Ilj1# 451# Vkhdu# vwudlq# rq# wkh# zdoo# uhkdelolwdwlrq# e|# JUV# zdoo# zlwk# uhfrqvwuxfwlrq# edfniloo# h{fdydwlrq

+d,# Vrlo# qdlolqj# dvvhpeolqj +e,# Guloolqj# dqg# vrlo# qdlolqj +f,# Grxeoh# sodwhv# dqg# krul}rqwdo# gudlq# slshv

+g,# Vwhho# dvvhpeolqj# dqg# irupzurn +h,# Fdvw# lq# frqfuhwh +i,# Zdoo# uhkdelolwdwlrq#

Ilj1# 461# Frqvwuxfwlrq# vwdjhv# ri# wkh# uhkdelolwdwlrq# xvlqj# vrlo# qdlolqj# zlwkrxw# edfniloo# h{fdydwlrq

Ѻ঍έʪ
ݒÀॠي
҃Ìࢹߕ
܃ä
҃ɰ
҄ĵ
঳À
ࡾó

ǣࢍǣČ
ەɰ. ߯ܛɳć, ݌
क़३
٬ѹ
҄ĵ
঳
߯ʂۻɳ Ѻ঍έڹ
דێȐێτ
҃Ìۆ
ąڍ
0.011ۋČ
ۦ֨ėۆ
ą ڍ
0.039Ϳ
ǣࢍǣ
דێȐێτڷͿ
҃Ìॠي
҄ĵॢ
٬ѹ ۋ
ۦ֨ėॢ
٬ѹ҃ɰ
3.5ѕ
܁ʪ
ۚó
ǣࢍǣČ
ەɰ.

דێȐێτڷͿ
҄ĵॢ
٬ѹڹ
҃Ìࡓࡾν࣡
ۻϸѹ ߕقԴۆ
ۻɳѺ঍έ
ьɵۋ
؉ܳ
ййॠČ
דێȐێ ę
ۻϸѹߕۆ
ĵ՚মęͿ
؋܁ۺۍ
äʴں
ǣࢍǴČ

ەɰ. ۋق
Ҽ३
ۦ֨ė
٬ѹڹ
ۻϸҸ΀ڷͿҙࢢ
٬ѹ

ȭۋ
0.4HǴقԴ
٬ѹ۹ҙε
ܼ֮ڷͿ
ۻɳѺ঍έۋ

ǣԸ঍ڷͿ
ьɵॠČ
ەɰ.

սथѺڦٮ
ۻɳѺ঍έں
қԵॢ
Āę
דێȐێτڷ Ϳ
҄ĵॢ
٬ѹۋ
ۦ֨ėॢ
٬ѹ҃ɰ
؋܁ۺۍ
äʴں
ǣ

ࢍǴČ
ەɰ. ۋə
şܕ
҃Ìࢹߕق
דێȐێτ
҃Ìę

ێߕ঍
҃Ìࡓࡾν࣡
ÌՁ
ۻϸѹߕق
ۆॢ
ĵ՚মęٮ

֨ėѓѪق
şۍʽ
ìڷͿ
ࣺɳʽɰ. Fig. 11ę
Fig. 12 ə
ۋ͠ॢ
ইԜں
۞
ǣࢍǴČ
ەɰ. Fig. 11قԴ
ݓ١Ŕ ν˚
҃Ìࢹߕق
דێȐێ
҃Ì
ۻ঳ۆ
߯ʂۻɳѺ঍έڹ

0.015Ϳ
ÏČ, ێߕ঍
҃Ìࡓࡾν࣡
ÌՁ
ۻϸѹߕ
ĵ߹ę

דێȐێۋ
ٍĀʽ
঳
߯ʂۻɳѺ঍έڹ
ݓ١Ŕν˚ٮ

דێȐێτ
҃Ìࢹߕ҃ɰ
26.6%Ϳ
Çՙॢ
0.011Ϳ
ǣࢍ

Ǯɰ. ۋə
ێߕ঍
҃Ìࡓࡾν࣡
ÌՁ
ۻϸѹߕۆ
ĵ՚ম ęق
ۆॢ
ìڷͿ
ԦÁʽɰ. Fig. 12ق
ǣࢍǶ
цٮ
Ïۋ

ۦ֨ėॢ
҃Ìࢹ
٬ѹۆ
ąڍ
ɀۺ
Ձࢹ
֨ėڷͿ
ۍ३
҃

Ìࢹߕۆ
ȭۋÀ
ݒÀॣս΀
ۻɳѺ঍έۋ
࠶ݓČ
ەɰ.

ۋق
Ҽ३
דێȐێτق
ۆॢ
҄ĵ
٬ѹۆ
ąڍ
ێߕ঍
҃

Ìࡓࡾν࣡
ۻϸѹߕ
ĵ߹
঳
ѕϸ
Ձࢹ͟ۋ
ййॠي
߸

Àۺۍ
ۻɳѺ঍έۋ
ьԦॠݓ
؍Č
ەɰ. ˰͆Դ, क़३

٬ѹ҄ĵə
क़३ԜࢗͿ
דێȐێτں
҃ÌॠČ, ҃Ìࡓ

ࡾν࣡
ۻϸѹߕͿ
υИνॠə
ìۋ
ۦ֨ė
҃ɰ
؋ۻॠ Č, ٬ѹ
ѕϸ
йĹ޳ڷͿ
०νۺۍ
ìڷͿ
ࣺɳʽɰ.

5. 㢇㢿⦄ # ⁀Ⴗ

ॢćथ঍३Եę
ս࠘३Եق
ۆॢ
ѓѪڷͿ
क़३٬ѹ
҃

Ì
ф
҄ĵমęε
қԵॢ
Āę
דێȐێτڷͿ
҄ĵॠə

ìۋ
ۦ֨ėॢ
ì
҃ɰ
؋ۻॠČ, ०νۺۋдͿ
דێȐێ τں
Ԑڌॠي
҄ĵॠʪ΀
ԺćॠČ
֨ėॠٕɰ. ॳ঳
Ȥ

঳জʽ
٬ѹۆ
ڮݓěν
ф
क़३٬ѹ
҃Ì
ф
҄ĵق
ট ڌʾ
ս
ەʪ΀
דێȐێτ
҃Ìق
ۆॢ
ңĨʽ
Ҹ΀֩

҃Ìࢹ
٬ѹۆ
҄ĵę܁ں
Fig. 13ق
ǣࢍǴؽɰ. ɳć֨

ėق
ۆॢ
ѓѪڷͿ
Ը
דێȐێτں
҃ÌॠČ
঳
ইۤࢍ

Ժ
҃Ìࡓࡾν࣡
ۻϸѹߕε
ĵ߹ॢɰ. Fig. 13(c)قԴ
ۋ

ܼݓࣺؓڹ
҃Ìࢹߕٮ
ۻϸѹߕۆ
ێߕজε
ʪϿॠə

ًॣں
սॱॢɰ. ۋ
ইۤۆ
ąڍ
҃Ìʽ
דێȐێτۆ

ţۋə
4m, ѕ࠘Âüڹ
1.2m×1.2mͿ
ߪ
҃Ìս͟ڹ
49ė ۋČ, սथѕսėڹ
ţۋ
1.5mͿ
ߪ
13ėں
ѕ࠘ॠٕɰ.

क़३٬ѹۆ
҄ĵə
“דێȐێτ
҃Ì
Gۋܼݓࣺؓ

Ժ࠘
Gսथѕսė
Ժ࠘
Gşߣĵ߹
GߏŖѕŖ
ф

äऻݚ
Ժ࠘
Gইۤ
ࢍԺ
҃Ìࡓࡾν࣡
ۻϸѹߕ
ĵ߹

G܁ݓۚغ”տԴͿ
ݕॱʼؽɰ. ٬ѹ
ѕϸۋ
ڮ֬ʽ

ҙқڹ
ࣷ঍
ܳζěۋ
क़҄ʽ
דێȐێτ
҃Ì
঳
ইۤ

ࢍԺ
҃Ìࡓࡾν࣡
ѹߕε
ĵ߹ॠČ
ѕϸ
ėʴ(ڮ֬
ҙ) ق
թԵں
޽ڍə
ѓ֩ڷͿ
սॱʼؽɰ. ѕϸڮ֬
ėʴ ҙق
Ŕ͆ڍ࣡ε
क़҄ॠČ, թԵҙԺͿ
ۍॢ
דێȐێ ۆ
क़३ε
߯ՙজॠČ, ǴĵՁں
ॳԜ֨ࢅş
ڦ३
݌
ҙ

֩ѓݓε
ڦ३
דێȐێق
ܳζěں
क़҄ॠي
ܳζě

Ǵٽҙق
Ŕ͆ڍ࣡ε
ܳۓۋ
Àɠॠʪ΀
ॠٕɰ.

דێȐێτں
ۋڌॢ
क़३
҃Ìࢹ
٬ѹ
҄ĵə
҃Ì ࢹߕε
܃äॠݓ
؍Č
क़३ԜࢗقԴ
҃ÌॠдͿ
֨ė Ձۋ
ܞČ, şܕ
ݓ١Ŕν˚
҃Ìۦ
҃Ìق
߸ÀͿ
דێ Ȑێτę
ێߕ঍
҃Ìࡓࡾν࣡
ۻϸѹߕÀ
҃ÌʼдͿ

ࢍ
҃ÌėѪ҃ɰ
؋ۻॠČ
०νۺۋдͿ
ॳ঳
Ȥ঳জ ʽ
٬ѹۆ
ڮݓěν
ф
क़३٬ѹ
҄ĵق
ڮڌॠó
টڌ ʾ
ìڷͿ
şʂʽɰ.

6. ࿻# ᮫#

ۋ
ȦЛقԴə
क़३
҃Ìࢹ
٬ѹۆ
҄ĵͿ
דێȐێ τق
ۆॢ
҃Ì
؋ę
क़३
҃Ìࢹߕ
܃ä
঳
҃Ìࢹ
٬

ѹڷͿ
ۦ֨ėॠə
؋ق
ʂ३
ॢćथ঍३Եę
ս࠘३ Եں
սॱॠي
०νۺۍ
؋ڷͿ
Ը܁ॠČ
Ը܁ʽ
؋ڷ Ϳ
҄ĵॢ
Ԑͻε
ՙÒॠٕɰ. क़३٬ѹ
҄ĵ
؋˞ق
ʂ

ॢ
ێʹۆ
ॢćथ঍३Եę
ս࠘३ԵڷͿҙࢢ
ʪ߻ॢ

ܳڅ
Ā΁ڹ
ɰڼę
Ïɰ.

(1) דێȐێτق
ۆॢ
क़३٬ѹ
҄ĵə
ݓ١Ŕν˚
҃Ì ࢹߕق
דێȐێę
҃Ìࡓࡾν࣡
ۻϸѹߕÀ
߸ÀͿ

҃ÌʼдͿ
҃Ìࢹ
٬ѹڷͿ
ۦ֨ėॠə
ì҃ɰ
ॢć थ঍३Եق
ۆॢ
ڙ঒টʴ
؋ۻڱۋ
ࡾó
ǣࢍǮɰ.

(2) דێȐێτق
ۆॢ
क़३٬ѹ
҄ĵə
דێȐێτ
҃Ì

঳
ێߕ঍
҃Ìࡓࡾν࣡
ۻϸѹߕÀ
ĵ߹ʼдͿ
ۻϸ ѹߕقԴ
սथѺ঍ڹ
ԜҙقԴ
ьɵॠǣ
ййॠČ
ۻ ɳѺ঍έڹ
äۆ
ьԦॠݓ
؍ə
ìڷͿ
ǣࢍǮɰ.

(3) ҃Ìࢹ
٬ѹڷͿ
ۦ֨ėॠə
ąڍ
Ͽβࢍβ
ۻϸҸ

΀ę
ݓ١Ŕν˚
҃Ìۦ
ŔνČ
ˏ޽ړۦÀ
äۆ
ʴ

֨ق
ъ҄ۺڷͿ
ɀۺ
ՁࢹʼдͿ
ۻϸѹߕقԴ
ս थѺ঍ڹ
ѹߕۆ
ܼؖҙقԴ
ьɵॠČ
ۻɳѺ঍έڹ

۹ҙقԴ
ǣԸ
঍ࢗͿ
ьɵॠə
ìڷͿ
ǣࢍǮɰ.

(4) ۻϸѹߕقԴ
߯ʂսथѺڦٮ
߯ʂۻɳѺ঍έڹ דێ Ȑێτق
ۆॢ
҄ĵə
ÁÁ
3.17mmٮ
0.011ۋČ
ۦ֨

ėق
ۆॢ
҄ĵə
ÁÁ
43.86mm(٬ѹ
ȭۋۆ
0.756%) ٮ
0.039Ϳ, דێȐێτق
ۆॢ
҄ĵÀ
ۦ֨ėق
ۆ

ॢ
҄ĵ҃ɰ
؋܁ۺۍ
äʴں
ॠə
ìڷͿ
ǣࢍǮɰ.

(5) ۋ
ٍĵقԴ
ՙÒॢ
דێȐێτق
ۆॢ
क़३٬ѹ

҄ĵə
şܕ
҃Ìࢹߕق
߸Àۺۍ
҃ÌڷͿ
؋ۻॠ Č, क़३ԜࢗͿ
҃Ìॠي
०νۺۋдͿ
ॳ঳
Ȥ঳

জʽ
٬ѹۆ
ڮݓěνٮ
क़३٬ѹ
҃Ì
ф
҄ĵق

ڮڌॠó
টڌʾ
ìڷͿ
şʂʽɰ.

⾃ါẃ㤗# (References)

1.֪޻æ, ńՁܳ, ۋբ, ۤѩս
(2004), “ݚܼ঒ڍق
˰δ
҃Ìࢹ
٬ѹ

ңĨԐͻ
қԵ” ʂॢࢹЀॡধ
܁şॡցʂধ, ݓъ, pp.2493-2495.

2. Chae, Young-Su, Kim, Young-Nam, and Cheong, Gyu-Hyang (2004),

“Behavior of Planting Reinforced Earth Retaining Wall by a Case of Failure”, Journal of the Korean Geosynthetics Society, Vol.3, No.3, pp.3-8.

3. Cho, Sam-Deok, Lee, Kwang-Wu, Lee, Hoon-Yeon, and Chang, Ki-Soo (2006), “A Case Study on Behavior of High-Raised Soil Wall”, Journal of the Korean Geosynthetics Society, Vol.5, No.4, pp.35-42.

4. Han, Jung-Geun, Cho, Sam-Deok, Jeong, Sang-Seom, Lee, Kwang-Wu, and Kim, Ji-Sun (2005), “Case Study on the Countermeasure Methods and Collapsed Sources of Segmental Retaining Wall Considering Site Conditions”, Journal of the Korean Geosynthetics Society, Vol.4, No.3, pp.35-43.

5. Hong, Ki-Kwon, Han, Jung-Geun, Lee, Jong-Young, and Park, Jai-Seok (2013), “Analysis on Failure Causes and Stability of Reinforced Earth Wall Based on a Field Case”, Journal of the Korean Geosynthetics Society, Vol.12, No.1, pp.109-114.

6. Kwon, Oh-Hyun, Park, Young-Joo, and Seo, Dong-Hyun (2009),

“A Study for Design and Construction of Reinforced Retaining Wall against the Climate Change”, Spring Korean Geosynthetics Conference, pp.91-100.

7. Kim, You-Seong, Won, Myoung-Soo, Choi, Jeong-Ho, and Choi, Young-Hun (2013), “A Case Study on the Restoration of Geosynthetic Reinforced Soil Segmental Retaining Walls damaged by Fire Deterioration”, Spring Korean Geosynthetics Conference, pp.41-44.

8. Won, Myoung-Soo, Choi, Jeong-Ho, Kim, Young-Shin, and Kim, Chang-Woo (2012a), “Collapsed Geosynthetics Reinforced Segmental Retaining Wall Restoration using Unit Soil Nailing”, KGS Spring National Conference, pp.283-288.

9. Won, Myoung-Soo, Choi, Yong-Hun, Choi, Jeong-Ho, and Kim, You-Seong (2012b), “Restoration of Collapsed Geosynthetics Reinforced Soil Wall”, Fall Korean Geosynthetics Conference, pp.65-68.

10. Yoo, Chung-Sik, and Jung, Hyuk-Sang (2006), “Investigation on Effect of Rainfall on Performance of Soil-Reinforced Retaining Wall”, Journal of the Korean Geosynthetics Society, Vol.5, No.3, pp.17-24.

11. Yoo, Chung-Sik, Jung, Hye-Young, and Jung, Hyuk-Sang (2005),

“A Case Study in a Rainfall induced Failure of Geosynthetics- Reinforced Segmental Retaining Wall”, Journal of the Korean Geosynthetics Society, Vol.4, No.1, pp.17-25.

Received : October 18^th, 2013 Revised : November 10^th, 2013 Accepted : November 14^th, 2013