Proposal of Design Method for Landslides Considering Antecedent Rainfall and In-situ Matric Suction

㉔䚽ᵉ㟤㝴G 䜸㣙G ⯜Ḵ䢕㍌⥙㡸G Ḕ⥘䚐G ㇤㇠䈐G 䚨㉑G ⵝⷉG 㥐㙼

44 ISSN 1229-2427 (Print) ISSN 2288-646X (Online) http://dx.doi.org/10.7843/kgs.2013.29.12.11 㻤ᛵ㍈■ᙽ㻡䀔ᬄⓀ㍙# # ㆤ29᜔# 12㿀# 2013ᫌ# 12ぜ# pp. 11 G 24

JOURNAL OF THE KOREAN GEOTECHNICAL SOCIETY Vol.29, No.12, December 2013 pp. 11 G 24

⑫㣔འ⧻⦋# 㥏⫰# ᷳ။㪬╣᭰⪏# ါ᭯㢧# ⏻⏷㐧# 㢿⑨# ὴῠ# ⭧⢓

Proposal of Design Method for Landslides Considering Antecedent Rainfall and In-situ Matric Suction

ᢷ ㊌ 䃏¹ Kim, Jung-Hwan ㊌ ⬸ ⮣² Jeong, Sang-Seom ᢷ ㄠ ♳¹ Kim, Yong-Min ㇫ ឈ ㄧ¹ Lee, Kwang-Woo

Abstract

This study presents a design method for typical rainfall-induced landslide considering in-situ matric suction. Actual landslide data are used to validate the proposed method. The soil-water characteristic curve (SWCC) and unsaturated permeability are experimentally determined to estimate hydraulic properties of testing site. The field measurement of matric suction is carried out to monitor in-situ matric suction in a natural slope subjected to rainfall infiltration, which is incorporated in the landslide analysis. The wetting band depth and safety factor of the slope are assessed to clarify the effect of domestic rainfall pattern. Especially, the effect of antecedent rainfall on the slope stability is investigated and discussed in terms of wetting band depth using parametric study. It is found from the result of this study that proposed design method can consider the characteristic of unsaturated soil and effect of antecedent rainfall. The location of the scarp zone is fairly well predicted by proposed design method. Moreover, heavy rainfall, concentrated in the backward part with time, causes the lowest safety factor of the slope. These results demonstrate that decrease in matric suction due to antecedent rainfall may trigger slope instability. After the antecedent rainfall, additional rainfall may cause the slope failure due to increasing wetting band depth.

⧟# # # ⴋ

҆
ٍĵقԴə
ۻ঍ۺۍ
ԓԐࢗ
ьԦ
ϭ࠶ɦݏۍ
Ìڍࠞ࣊ইԜę
ইۤ
Ͽěড়սͳں
ČͲॢ
ԓԐࢗ
३Ե
ѓѪں

܃֨ॠٕڷ϶, ֬܃
ԓԐࢗÀ
ьԦʽ
ݓًں
Ը܁ॠي
Ŕ
ۺڌՁں
êࢹॠٕɰ. ۋε
ڦ३
ʂԜݓًۆ
֨Βε
޽ࠄॠ ي
॥ս࣢ՁčԸ(SWCC) ֬ॹں
սॱॠٕڷ϶, ҝपজ
࣊սćսε
ԓ܁ॠٕɰ. ̚ॢ
ߣş
Ͽěড়սͳę
ÌڍьԦق

˰δ
Ͽěড়սͳ
Ѻজε
ěࠑॠş
ڦ३
ইۤćࠑں
սॱॠٕڷ϶, Ŕ
Āęε
ԓԐࢗ
३Եق
ۺڌॠٕɰ. ŔνČ
ĶǴ

Ìڍ࣢Ձں
ČͲॢ
Ҽ࢐ϸ
Ժćε
ڦॠي, Ìڍःࢤق
˰δ
֥ڰʂ
Ūۋٮ
؋ۻڱ
Ѻজε
қԵॠٕɰ. ࣢০, ԸॱÌڍ

মęε
ČͲॢ
ϔÒѺս
३Եں
սॱॠي
Ҽ࢐ϸ
؋܁Ձق
ر̃ॢ
ٖॳں
ܳəݓ
֥ڰʂ
Ūۋ
Ѻজε
ࣀ३
қԵॠٕ

ɰ. Ŕ
Āę, ҆
ٍĵقԴ
܃؋ॢ
ԓԐࢗ
३Ե
ѓѪڹ
ݓъۆ
ҝपজ
࣢Ձę
ԸॱÌڍ
মęε
ČͲॣ
ս
ەڷ϶, ԓԐࢗ

ьԦ
ڦ࠘ε
ۺۼ০
ٚࠑॠə
ìڷͿ
ǣࢍǮɰ. ŔνČ
ÌڍьԦ
֨, Ìڍ͟ۋ
঳ъҙق
ݚܼʽ
ÌڍःࢤقԴ
Ҽ࢐ϸ ۆ
؋ۻڱۋ
Àۤ
ǰó
ǣࢍǮɰ. ̚ॢ, ԸॱÌڍə
Ҽ࢐ϸۆ
Ͽěড়սͳں
Çՙ֨ࡈ
ҝ؋܁Ձں
ݒÀ֨ࢅČ, ۋ঳

ьԦʽ
ÌڍͿ
ۍ३
֥ڰʂÀ
ŪرݓϸԴ
Ҽ࢐ϸ
ࣷĨ
ڦॹۋ
ݒÀॢɰ.

Keywords : Matric suction, Rainfall infiltration, Landslide, Antecedent rainfall, Seepage-slope stability analysis

1 ⲯ㬦⭪, ⪊◒រ㧳ᇪ# 㘺ὃ㫲ᅗᆏ㧳ᆖ# ₯╆ᆖⲯ# (Member, Graduate Student, Dept. of Civil and Environmental Eng., Yonsei Univ.)

2 ⲯ㬦⭪, ⪊◒រ㧳ᇪ# 㘺ὃ㫲ᅗᆏ㧳ᆖ# ᇪ⚲# (Member, Prof., Dept. of Civil and Environmental Eng., Yonsei Univ., Tel: +82-2-2123-2807, Fax: +82-2-2123-8378, [email protected], Corresponding author, ᇪ❺ⲚⰪ)

* →# ᘖῒ⩪# រ㧶# 㘺⯲Ḗ# ⭪㧲ᜮ# 㬦⭪⯚# 2014ᗞ# 6⭮# 30Ⱆዦ⹚# ኒ# ᕎ⭃⯞# 㧳㬦ᳶ# ↎ᕎⶖ❶ዊ# ₮ᰧᝢ᝾. ⲚⰪ⯲# ᄚ㘺# ᕎ⭃ᆖ# 㨂፲# ᘖῒ⹫⩪# ᄦⱆ㧲⪆# ᥶ṗᝢ᝾.

Copyright © 2013 by the Korean Geotechnical Society

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0)

which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

45

1. ⑧# ᮫

߯Ŗ
ĶǴقԴə
ݚܼÌڍق
ۆॢ
Ҽ࢐ϸ
ۦ३À
ۙܳ

ьԦॠČ
ەڷ϶(National Disaster Management Institute, 2012), ࣢০
ʪ֮قԴ
ьԦॢ
ԓԐࢗ
ф
ࢹԵΪͿ
ۍॠ ي
ۦԓक़३Ӽχ
؉ɦ͆
ۍϼक़३ūݓ
ьԦॠČ
ەر
Ŕ

رɗ
˺
҃ɰ
Ҽ࢐ϸ
ۦ३
ьԦڙۍę
҃Ì
ʂ޾ق
ࢀ

ě֮ۋ
ݚܼʼČ
ەɰ. ԓԐࢗə
Ìڍࠞ࣊Ϳ
ۍॠي
Ҽ

࢐ϸ
शࠗҙق
֥ڰʂ(wetting band)À
঍Ձʼر
ثڹࣷ

Ĩ
঍ԜڷͿ
ьԦॠə
ìۋ
ێъۺۍ
ইԜۋ϶(Fredlund et al., 1994; Cho and Lee, 2001; Kim et al., 2004; Jeong et al., 2008), ԓݓ
ڮًں
˰͆
৙͠Ǵπ
ąڍقə
ࢹԵ Ϊε
ьԦ֨ࢅşʪ
ॢɰ(Iverson and Denlinger, 2001;

Marchi et al., 2002). ÌڍÀ
ێ܁
şÂ
ʴ؋
ݓ՚ʼϸ
॥

սҼÀ
ݒÀॠي
शࠗ
ݓъۋ
पজʼş
֨ۚॠČ
֥ڰʂ À
ێ܁
Ūۋق
ʪɵॠϸ
ݓъۆ
ۻɳÌʪε
ݒÀ֨ࢅə

Ͽěড়սͳ(matric suction)ۋ
ই۹০
Çՙॠي
Ԑϸۆ

ҝ؋܁Ձۋ
ݒÀॠó
ʽɰ(Ng and Shi, 1998; Fourie et al., 1999; Cho and Lee, 2000; Jeong et al., 2009). ˰͆Դ

ԓݓε
ۋΘČ
ەə
ࢹԐۆ
ҝपজ
࣢Ձۋ
ԓԐࢗ
ьԦ ں
Ā܁ݛə
ܼڅॢ
څՙ͆Č
ॣ
ս
ەɰ. Ҽ࢐ϸقԴۆ

Ìڍࠞ࣊
ইԜں
ইۤԜࢗق
҃ɰ
Ŗۿॠó
қԵॠş

ڦ३Դə
ڍνǣ͆
ۻًق
қपॠČ
ەə
ҝपজ
ॄজ ࢹ
࣢Ձق
ʂॢ
֬ॹۺ
ٍĵÀ
ъ˚֨
Ըॱʼرآ
ॠ϶, ۋε
ԓԐࢗ३Եق
ۺۼ০
ۺڌॣ
ս
ەرآ
ॢɰ.

Ìڍࠞ࣊ق
ۆॢ
ԓԐࢗə
Ҽ࢐ϸ
ࣷĨ
ɾ֨ۆ
Ì ڍܓæʪ
ܼڅॠݓχ, Ŕ
ۋۻق
ьԦ॰ʏ
ԸॱÌڍ (antecedent rainfall)ق
ࢀ
ٖॳں
ыəɰ(Tan et al., 1987;

Chatteriea, 1989; Wei et al., 1991; Rahardjo et al., 2001;

Yune et al., 2010). ҝपজ
Ҽ࢐ϸۋ
æܓॢ
ԜࢗͿ
ݓ՚

ʼϸ
ĶǴ
ॄজࢹ
ݓъۆ
ąڍ, Ͽěড়սͳڹ
أ
75

85kPaں
҃ۋ϶(Lee et al., 2012), ҝपজ
࣊սćսə
أ

1×10^-10cm/sec ۋॠͿ
ϔڍ
ۚڹ
Éں
Íəɰ. ۋ͠ॢ
ݓ ъԜࢗقԴ
ÌڍÀ
ьԦॠϸ
ߣş
Ͽěড়սͳڹ
۾۾

ÇՙॠČ
॥սҼ
ф
ҝपজ
࣊սćսÀ
ݒÀॠي
Ìڍ

ࠞ࣊՚ʪÀ
ӊ͆ݓó
ʽɰ. ݌, ԸॱÌڍə
ԓԐࢗ
ьԦ

ɾ֨ۆ
ݓъۆ
Ͽěড়սͳ
ߣşԜࢗ
ф
Ìʪε
Ā܁ॠ Č, ݓ՚ۺۍ
ÌڍͿ
ۍॠي
Ҽ࢐ϸۋ
ࣷĨʽɰ. ࣢০, ডইŖ
ˣ(2013)ڹ
2012ț
ڍνǣ͆قԴ
ьԦॢ
Ҽ࢐ϸ

ۦ३
ьԦইড(53Òՙ)ں
қԵॠي
ԓρߔقԴ
܃֨ॢ

ԓԐࢗ
ٚ҃
şܵں
ۺڌ
ॣ
ąڍ, Ҽ࢐ϸ
ۦ३
ьԦ
ۋ ۻۆ
߯ʂ֨ÂÌڍ͟ę
ێɀۺÌڍ͟ں
ČͲॠٕں
˺

ԓԐࢗܳۆ҃
şܵق
Ї
й࠘ə
ۺڹ
ÌڍقԴ
Ҽ࢐ϸ

ۦ३À
ьԦॣ
ÀɠՁۋ
ȭɰČ
҃Čॠٕɰ. ˰͆Դ
Ìڍ ق
ۆॢ
ԓԐࢗ
ьԦں
ٚࠑॠČ
ʂ޾ں
υʹॠş
ڦ३Դ ə
ԸॱÌڍ(

¢

ъ˚֨
ČͲ३آ
ॠČ, ۋ঳ق
ьԦॢ
Ìڍ࣢Ձں
ъٖॠ ي
Ҽ࢐ϸ
؋܁Ձ
êࢹε
սॱ३آ
ॢɰ. Ìڍ࣢Ձڹ
Ì ڍÌʪ(

¢

­

ə
ܳڅॢ
څՙ˞ۋɰ. ۋε
ڦ३
ڍνǣ͆قԴə
Ìڍۆ

ۦইşÂѻ
߯ʂÌڍÌʪٮ
Ìڍݓ՚֨Âۆ
ěćε
ǣ

ࢍǶ
ঝέÌڍ͟ʪ(intensity-duration-frequency, IDF) č Ըں
Ժć
֨
ܳͿ
ԐڌॠČ
ەڷǣ(Lee et al., 2009), Ŕ
şܵۋ
ϼঝॠݓ
؍Č
ԸॱÌڍε
ČͲॣ
ս
ػş

˺Лق
սψڹ
ąڍۆ
սε
ČͲॠي
߯ՙ
؋ۻڱں
ǣ

ࢍǴə
Ìڍܓæں
޽࢘ॠäǣ
֬֨Â
ÌڍۙΒε
Ԑ ڌॠşʪ
ॢɰ.

ԓԐࢗε
ٚࠑॠş
ڦॢ
३Եۺۍ
ѓѪڷͿə
ߒݫ, ԓԐࢗ
ьԦę
ěʹ
ەə
څՙ˞ں
ėÂۺڷͿ
қԵॠ ي
ԓԐࢗ
ьԦ
Àɠݓًں
ٚࠑॠə
ࣀćۺ/ėॡۺ
३ Ե
ѓѪۋ
ەڷ϶, ݓν܁҃֨֟ࢰ(GIS) ۺڌں
ࣀ३
ġ

ًۺۍ
қԵۋ
Àɠॠɰ(Kim et al., 2012). ˆݫ, ҝपজ

ݓъۆ
սνॡۺ
࣢Ձں
ъٖॣ
ս
ەČ
Ìڍࠞ࣊ق
ۆ

ॢ
֥ڰʂ
Ūۋٮ
Âŕսؓқपε
थÀॠي
Ҽ࢐ϸۆ

؋ۻڱں
ԓ܁ॠə
ࠞ࣊-Ԑϸ؋܁३Ե
ѓѪۋ
ەɰ. ي şقə
Ìڍࠞ࣊३Եę
Ԑϸ؋܁३Եں
ٍć३Ե(staggered analysis)ॠə
ѓѪ(GEO-SLOPE, 2012; SoilWorks, 2013) ę
ݓъۆ
սνॡۺ
࣢Ձę
ًॡۺ
࣢Ձں
ʴ֨ق
३Ե (monolithically coupled analysis)ॣ
ս
ەə
ѓѪۋ
ەɰ (Kim, 2010). ֬܃
ԺćقԴə
Ԑڌۋ
ठνॠČ
ࠞ࣊-Ԑ ϸ؋܁३Եں
սॱॣ
ս
ەə
ٍć३Ե
ѓѪں
ψۋ
Ԑ ڌॠČ
ەڷ϶, Ԝڌজʽ
॒ͿŔ͖ں
টڌॠي
Ԑϸ؋

܁३Ե
ٍĵÀ
টь০
ݕॱʼČ
ەɰ. Ŕ͠ǣ, ٍć३Ե

֨, ڦقԴ
سś॰ʏ
ҝपজ
ݓъ
࣢Ձق
ʂॢ
܁ঝॢ

ۋ३ٮ
٤цδ
ۺڌۋ
ज़څॠ϶, ݓъۆ
Âŕսؓ
қप ٮ
Ìڍ
࣢Ձق
˰͆
३Եۆ
܁ঝՁۋ
ɵ͆ݓş
˺Лق

ψڹ
ܳۆÀ
ज़څॠɰ.

˰͆Դ
҆
ٍĵقԴə
ݓъۆ
ҝपজ
࣢Ձę
ԸॱÌ ڍ
মęε
ČͲॣ
ս
ەə
ԓԐࢗ
३Ե
ѓѪں
܃֨ॠٕ

ɰ. ŔνČ
३Ե
ѓѪۆ
ۺڌՁں
êࢹॠş
ڦॠي
ߒ ݫ, ԓԐࢗÀ
ьԦॢ
ݓًۆ
֨Βε
޽ࠄॠي
ҝपজ
ॄ

জࢹ
ݓъۆ
սνॡۺ
࣢Ձۍ
॥ս࣢ՁčԸę
ҝपজ

࣊սćսε
ԓ܁ॠٕڷ϶, ۤͳć(tensiometer)ε
ۋڌ

㉔䚽ᵉ㟤㝴G 䜸㣙G ⯜Ḵ䢕㍌⥙㡸G Ḕ⥘䚐G ㇤㇠䈐G 䚨㉑G ⵝⷉG 㥐㙼

46 Ilj1#41#W|slfdo#vrlo0zdwhu#fkdudfwhulvwlf#fxuyh#iru#vlow|#vdqg#+Iuhgoxqg#

dqg# [lqj/# 4<<7,

Ilj1# 51# Judlq0vl}h# glvwulexwlrq# fxuyh# iru# lq0vlwx# vrlov

ॢ
ইۤ
Ͽěড়սͳں
ࠑ܁ॠي
Ŕ
Āęε
ࠞ࣊३Եق

ۺڌॠٕɰ. ˆݫ, ĶǴ
Ìڍ
࣢Ձۍ
ঝέÌڍ͟ʪق
˰

δ
Ìڍ
ःࢤę
ԸॱÌڍ
মęε
ČͲॢ
ٍć३Եں
ս ॱॠي
֥ڰʂ
Ūۋٮ
؋ۻڱ
Ѻজε
қԵॠٕɰ. Չݫ, Ԝڌ॒ͿŔ͖ۍ
GEO-SLOPE(2012)ں
ۋڌॠي
ࠞ࣊

ф
Ԑϸ؋܁३Եں
սॱॠٕڷ϶, Ŕ
Āęε
֬܃
ԓԐ

ࢗÀ
ьԦʽ
ڦ࠘ٮ
Ҽİ
êࢹ
ॠٕɰ.

2. 㪤⪣# ⃓㜷㦟# 㘄⑼

৚ۆ
ҝपজ
࣢Ձڹ
սνॡۺ
࣢Ձ(hydraulic characteristic) ę
Ìʪ
࣢Ձ(mechanical characteristic)ڷͿ
ĵқॣ
ս

ەڷ϶, ইۤ֬ॹę
֬Ǵ֬ॹں
ࣀ३
ԓ܁ॣ
ս
ەɰ.

ʂशۺڷͿ
ইۤقԴə
ҝपজ
࣊սćսε
ԓ܁ॣ
ս

ەə
ݓश࣊ս֬ॹ, ۤͳćε
ۋڌॢ
Ͽěড়սͳ(matric suction) ࠑ܁
ˣۋ
ەɰ. ֬ǴقԴə
ҝपজ
ݓъۆ
Čڮ

ॢ
࣢Ձۍ
॥ս࣢ՁčԸں
ԓ܁ॣ
ս
ەڷ϶, ҝपজ
࣊

սćս
ф
ۻɳÌʪε
ࠑ܁ॣ
ս
ەɰ. ࣊ս
ф
ۻɳ֬ॹ ں
Ͽ˃
սॱॠş
رͲڏ
ąڍ
॥ս࣢ՁčԸں
ࣀ३
ҝप জ
࣊սćս
ф
ۻɳÌʪε
߸܁ॣ
ս
ەڷдͿ
܁ঝॢ

॥ս࣢ՁčԸں
ԓ܁ॠə
ìۋ
ܼڅॠɰ(van Genuchten, 1980; Fredlund et al., 1994; Vanapalli et al., 1996). ҆
ۤ

قԴə
ԓԐࢗ
३Եں
ڦॠي
॥ս࣢ՁčԸ
ф
ݓश࣊

ս֬ॹę
ইۤ
Ͽěড়սͳ
ćࠑں
սॱॠي
ইۤ֨Β ۆ
ҝपজ
࣢Ձں
ࣷ؊ॠٕɰ.

2.1 ⃓㜷㦟# 㟘㦟㓫⪣# 㢳╣㘄⑼ာ⑫#

॥ս࣢ՁčԸ(soil-water characteristic curve, SWCC) ڹ
ҝपজ
ݓъۆ
ߕۺ॥սҼ(

¯

¯

¬

࣢Ձں
Ā܁ݛə
Àۤ
ş҆ۺۍ
НՁۋɰ. ॥ս࣢Ձč Ըڹ
Нۋ
৚
ǴҙͿ
ড়սʼə
֥ڰę܁(wetting process) ę
Âŕ
ėşؓق
ۆ३
Нۋ
ѕ߻ʼə
æܓę܁(drying process)ں
ࣀ३
ԓ܁ॣ
ս
ەڷ϶, ֥ڰę܁ۋ
Ìڍ
ࠞ

࣊ق
ۆॢ
Ҽ࢐ϸ
ࣷĨ
Л܃ٮ
ڮԐॠݓχ
ę܁ۋ
҄ۡ

ॠي
ψڹ
֨Âۋ
ՙڅʼČ
֬ॹÉۆ
޲ۋÀ
ࡾݓ
؍ş

˺Лق
֬ॹۋ
ڌۋॢ
æܓčԸ(desorption curve)ں
ψ ۋ
ԐڌॠČ
ەɰ(Lee, 2004; Lee et al., 2009).

॥ս࣢ՁčԸڹ
ߣş
पজԜࢗقԴ
Ͽěড়սͳۋ
ݒ Àॠيʪ
Âŕ՚ۆ
Нڹ
ڮ߻ʼݓ
؍Č
ߕۺ॥սҼÀ

ڮݓʼɰÀ
Ͽěড়սͳۋ
ėş॥ۓÉ(air-entry value, AEV)

ں
Ȋر
ć՚
ݒÀॠϸ
৚
؎Úۋۆ
ࡾşٮ
ۓۙ
ѕَق

˰͆
ێ܁ॢ
ąԐε
ÀݓϸԴ
ߕۺ॥սҼÀ
۾۾
Çՙ ॠó
ʽɰ. Ͽěড়սͳۋ
ݒÀॠيʪ
ʌ
ۋԜ
Нۋ
߸߻

ʼݓ
؍ڹ
Ԝࢗق
ۋβó
ʼ϶(Fig. 1), ۋ˺ۆ
॥սҼε

ۛΪߕۺ॥սҼ(residual volumetric water content)͆
ॢ

ɰ. ۋ͠ॢ
ڙνε
ۋڌॠي
֨Βۆ
Ͽěড়սͳں
ܓۼ

ॣ
ս
ەə
ؓͳࣺ
߸߻
֨ॹş(pressure plate extractor) ٮ
ۛΪϿěড়սͳں
ࠑ܁ॣ
ս
ەə
filter paper(ASTM D5298-10)ε
ࣀ३
॥ս࣢ՁčԸں
ԓ܁ॣ
ս
ەɰ.

҆
ۼقԴə
ԓԐࢗ
ьԦ
ۋͳۋ
ەə
OOԓں
ʂԜ ڷͿ
ҝपজ
࣢Ձں
ԓ܁ॠş
ڦॠي
॥ս࣢ՁčԸ
֬

ॹ
ф
ݓश࣊ս֬ॹں
սॱॠٕɰ. Ϥ۹
ʂԜݓًۆ
֨

Βε
޽ࠄॠي
ş҆
НՁ
֬ॹں
սॱॠٕɰ. Fig. 2ə

ߕқԵ
֬ॹ
Āęۋ϶, ࣀێқΪѪԜ
CLćَͿ
ǣࢍǮ ɰ. ؚՙՁ
ॢć
֬ॹں
սॱॠي
ؚՁॢćə
36.6%,

47

Wdeoh# 41# Sk|vlfdo# surshuwlhv# ri# wkh# vrlov

Surshuwlhv Ydoxh

Vshflilf# judylw|# +  

, 51:6

Sdvvlqj# shufhqw# ri# Qr1# 533# vlhyh 84(

Oltxlg# olplw# + ¥¥ , 6919(

Sodvwlf# lqgh{# + ©¢ , 4817

XVFV FO

Vdwxudwhg# shuphdelolw|# +Ɖ

, ;13䮄43

# p2vhf

Wdeoh#51#Fxuyh0ilwwlqj#sdudphwhuv#iru#wkh#vrlo0zdwhu#fkdudfwhulvwlf#

fxuyh

Fxuyh0ilwwlqj# sdudphwhuv Ydoxh

ķ# +42nSd, 314458

q 41684

p@4042q 31584

Vdwxudwhg# yroxphwulf# zdwhu# frqwhqw# +ľ

, 318 Uhvlgxdo# yroxphwulf# zdwhu# frqwhqw# +ľ

, 314:

Ilj1#61#VZFF#iru#wkh#frooxyldo#vrlov=#h{shulphqwdo#gdwd#dqg#ilwwhg#

fxuyh

Ilj1#71#Xqvdwxudwhg#shuphdelolw|#iru#wkh#frooxyldo#vrlov=#h{shulphqwdo#

gdwd# dqg# ilwwhg# fxuyh

ՙՁݓսə
15.4Ϳ
ǣࢍǮڷ϶
Ҽܼڹ
2.73ڷͿ
ǣࢍǮ ɰ. ŔνČ
܁սڦ
࣊ս֬ॹں
սॱॠي
पজ
࣊սćս ε
ԓ܁ॠٕɰ(Table 1).

ʂԜݓًۆ
॥ս࣢ՁčԸں
ԓ܁ॠş
ڦॠي
ؓͳࣺ

߸߻
֨ॹşۍ
GCTS SWC-150(Pham and Fredlund, 2004) ę
filter paper(whatman No.42)ε
Ԑڌॠٕɰ(Fig. 3). ֬ ॹں
ࣀ३
ন˛ॢ
ʚۋࢢε
॥ս֩ڷͿ
शইॠş
ڦॠ ي
van Genuchten(1980) Ͽʝ֩ں
ۋڌॠي
ϔÒѺս (fitting parameter)ε
ԓ܁ॠٕɰ(Table 2).

ľ á ľ_Ɛâ Þľ_Ƒà ľ_Ɛßƙ

Ɯ

ƚ

Î â ÞķƑß^ƌ Î ƛ

Ɲ

ƞ

يşԴ, ľ_Ɛڹ
ۛΪ
ߕۺ॥սҼ, ľ_Ƒə
पজ
ߕۺ॥սҼ, Ƒə
Ͽěড়սͳۋɰ.

Ͽěড়սͳق
˰δ
ҝपজ
࣊սćսə
॥ս࣢ՁčԸ ę
ٍćॠي
߸܁ॣ
ս
ەڷ϶(Brooks and Corey, 1964;

van Genuchten, 1980; Fredlund et al., 1994), ҆
ٍĵق Դə
van Genuchten(1980) Ͽʝں
ۋڌॠي
ҝपজ
࣊

սćսε
ԓ܁ॠٕɰ. ̚ॢ, Eq. (2)ε
ࣀ३
ԓ܁ॢ
ҝप জ
࣊սćսε
êݒॠş
ڦॠي
İ͈ʼݓ
؍ڹ
ইۤق Դ
ݓश
ࠞ࣊֬ॹں
սॱॠٕɰ. Ŕ
Āę, Fig. 4ٮ
Ïۋ

Eq. (2)ε
ࣀ३
߸܁ʽ
ҝपজ
࣊սćսə
ݓशࠞ࣊֬ॹ

Āęٮ
ڮԐॠó
ǣࢍǮɰ.

ƉƓá ƉƑć

ãÎ â ÞķƑß^ƌä^ćÏ

Ƌ

ãÎ à ÞķƑ ß^ƌƋÞÎ â ÞķƑß^ƌß^{à Ƌ}ä^Ï

(2)

يşԴ, Ɖ_Ƒə
पজ࣊սćս,Ƒə
Ͽěড়սͳ, 쩀, n, mڹ

van Genuchten ϔÒѺսۋɰ.

2.2 㥏⫰# ᷳ။# 㪬╣᭰# ㅬ⭠#

ҝपজ
ݓъۆ
ࠞ࣊
३Եں
܁ঝॠó
սॱॠş
ڦ३ Դə
Ҽ࢐ϸ
ݓъۆ
ߣş
Ͽěড়սͳ
қपٮ
ԸॱÌڍ ق
ۆॢ
Ͽěড়սͳ
Ѻজε
ࣷ؊ॣ
ս
ەرآ
ॢɰ. ࠞ

࣊३Ե
֨
ߣş
Ͽěড়սͳں
܁ۆॠə
ѓѪقə
1) ݓ ॠսڦε
ۓͳॠə
ѓѪę, 2) ݓъۆ
Ͽěড়սͳں
ࠑ

܁ॠي
Éں
ݔۿ
ۓͳॠə
ѓѪۋ
ەɰ. ߣş
Ͽěড়ս ͳڹ
॥ս࣢ՁčԸę
ҝपজ
࣊սćսق
ٖॳں
й࠘

϶, ֥ڰʂ
Ūۋε
ԓ܁ॠəʚ
ࢀ
ًॣں
ॠş
˺Лق

㉔䚽ᵉ㟤㝴G 䜸㣙G ⯜Ḵ䢕㍌⥙㡸G Ḕ⥘䚐G ㇤㇠䈐G 䚨㉑G ⵝⷉG 㥐㙼

48 Ilj1# 81# Udlqidoo# gdwd# rewdlqhg# iurp# udlqjdxjh# vwdwlrq

Ilj1#91#Ryhudoo#ylhz#ri#wkh#qdwxudo#vorsh#dqg#orfdwlrq#ri#lqvwuxphq0 wdwlrq

+d,# W4

+e,# W8

Ilj1# :1# Glvwulexwlrq# ri# ilhog# pdwulf# vxfwlrq# zlwk# udlqidoo

܁ঝॢ
Éں
Ԑڌ३آ
ॢɰ. ˰͆Դ
҆
ۼقԴə
Ҽ࢐ϸ ۆ
ߣş
Ͽěড়սͳں
ࠑ܁ॠČ
Ìڍ
ьԦ
֨
Ͽěড়ս ͳ
Ѻজε
ě޶ॠş
ڦ३
OOԓقԴ
ইۤćࠑں
սॱॠ

ٕɰ. Ϥ۹, æܓ
Ԝࢗۆ
ߣş
Ͽěড়սͳں
ࠑ܁ॠČۙ

Fig. 5ٮ
Ïۋ
ۤşÂ
ÌڍÀ
ş΀ʼݓ
؍ڹ
2012ț
6ښ

29ێ
١ۻق
ćࠑں
֨ۚॠٕڷ϶, ÌڍÀ
֨ۚʽ
6ښ

30ێҙࢢ
7ښ
19ێūݓ
ćࠑں
սॱॠٕɰ.

2.2.1 ┟᝷䇘ⲏ⊜# 㢘㊌#

҆
ćࠑقԴ
Ԑڌॢ
ۤͳćə
Ճ͆кࣴ, ࣜҵ, óۋݓ Ϳ
ĵՁʼر
ەڷ϶, 0100kPa ѩڦقԴ
Ͽěড়սͳں

ࠑ܁ॣ
ս
ەɰ. Ճ͆кں
ࣀॠي
ҙۆ
Âŕսؓں
ࠑ܁

ॠş
ڦ३Դə
৚ę
ۺۼ০
ۿߤʼə
ìۋ
ܼڅॠş
˺

Лق
ࣜҵ
҃ɰ
ݔąۋ
ۚڹ
ۤҼε
Ԑڌॠي
ߎėॢ

঳
ۤͳćε
Ժ࠘ॠٕɰ.

Ҽ࢐ϸۆ
ۻߕۺۍ
Ͽěড়սͳں
ࠑ܁ॠş
ڦ३Դə

Ժ࠘ॣ
ս
ەə
ۤͳćÀ
ॢ܁ʼر
ەş
˺Лق
Fig. 6

ę
Ïۋ
ॢ
ڮًق
ʂ३
ݓΪε
˰͆
ܛɳѓॳ(ćčҙ) ڷͿ
6Ò
ݓ۾قԴ
ćࠑں
սॱॠٕɰ. Ժ࠘ڦ࠘ق
˰

͆
ܳѺ
ঞąۺۍ
څۍ˞ں
߯ՙজ
ॠş
ڦॠي
Ҽ࢐ϸ

ԜҙقԴҙࢢ
Ժ࠘ε
֨ۚॠٕČ, Á
ݓ۾ۆ
ۤͳć
 üۋ
500mε
Ȋݓ
؍ʪ΀
ॠٕɰ. ̚ॢ
ݓ۾υɰ
֮ʪ ق
˰δ
Ͽěড়սͳں
ࠑ܁ॠş
ڦॠي
৚ۆ
ॄজÀ
ݕ ॱʾ
ս
ەə
Ūۋ(֮ʪ
2030cm)ق
ۤͳć-Aε
Ժ࠘

ॠٕČ, ٚҼࠞ࣊३Եں
սॱॠي
Ìڍ
֨
ьԦॣ
ս
ە ə
߯ʂ
֥ڰʂ
Ūۋ(֮ʪ
105140cm)ε
ԓ܁ॠي
ۤ

ͳć-Cε
Ժ࠘ॠٕڷ϶, Ŕ
ܼÂق
ۤͳć-Bε
Ժ࠘ॠ

ٕɰ.

2.2.2 ᜻㢘# ᜧᝳ

Fig. 7ڹ
ʂशۺڷͿ
T1ę
T5قԴۆ
ćࠑĀęε
ǣࢍ

Ƕ
ìۋ϶, 2012ț
6ښ
29ێ
ߣş
æܓ
Ԝࢗۆ
Ͽěড়ս ͳڹ
Ͽ˜
֮ʪقԴ
أ
7585kPa ܁ʪ
Éں
ǣࢍǴČ

ەɰ. ŔνČ
ÌڍÀ
֨ۚʽ
6ښ
30ێҙࢢ
Ìڍق
ۆॢ

49

Ilj1# ;1# Wkh# odqgvolgh# fdvh# ri# Jrvxqj0jxq# +\xqh# hw# do1/# 5343,

Ilj1# <1# LGI# fxuyh# rewdlqhg# iurp# Vhrxo# Zhdwkhu# Vwdwlrq# +POLW/#

5346,

ݓश
ࠞ࣊Ϳ
ۍॠي
30cmق
Ժ࠘ʽ
ۤͳć-Aۆ
Ͽěড় սͳۋ
6kPaūݓ
Ӈβó
ÇՙॠٕČ, ֨Âۋ
ݓǫق
ǣ Ϣݓ
ۤͳćۆ
Ͽěড়սͳۋ
۾۾
Çՙॠي
أ
20kPaۋ ॠۆ
Ͽěড়սͳں
ǣࢍǴؽɰ. ۤͳć-Cۆ
ąڍ, 6ښ

30ێق
ьԦʽ
Ìڍق
Ͽěড়սͳۋ
äۆ
Ѻॠݓ
؍ڹ

ìڷͿ
ǣࢍǮɰ. ۋə
ÌڍьԦ
ۋ঳(6ښ
30ێ) ݓश Ϳҙࢢ
ࠞ࣊ʽ
Нۋ
؉ݔ
ۤͳćÀ
Ժ࠘ʽ
֮ʪق
ʪɵ ॠݓ
؍ڹ
ìڷͿ
ࣺɳʼ϶, ێ܁şÂۋ
ݓǦ
঳(7ښ
6 ێ) ߸Àۺۍ
Ìڍ ьԦڷͿ
ۍ३
Ͽěড়սͳۋ
Çՙॠ

ٕɰ.

3. Ⴘ᏿# འ⧻㘄⑼⪏# ါ᭯㢧# ⏻⏷㐧# 㢿⑨

3.1 Ⴘ᏿# འ⧻㘄⑼၇# ⏻⏷㐧#

ĶǴۆ
Ìڍə
ॠۼşۍ
6ښ9ښق
ݚܼۺڷͿ
ь Ԧʼ϶, Ҽ࢐ϸ
ۦ३
ş΀ڷͿҙࢢ
ݚܼ
঒ڍÀ
ܳͿ
ь Ԧॠə
ۋ
şÂ
ԓԐࢗÀ
ݚܼʼə
ìڷͿ
ǣࢍǮɰ(ڰ

޴ٖ
ˣ, 2010). ĶǴقԴə
Ìڍ͟ق
˰͆
ԓԐࢗε

ٚą҃ॠČ
ەڷǣ(ԓρߔ, 2010), Ìڙʪ
ݓًۆ
Ҽ࢐

ϸ
ۦ३
ş΀ں
҃ϸ, أ
60%ۆ
ۦ३À
ԓρߔ
ԓԐࢗ

ܳۆ҃
şܵق
Ї
й࠘ə
ìڷͿ
ǣࢍǮɰ. ڰ޴ٖ
ˣ (2010)ۆ
ٍĵ
ĀęقԴə
Ҽ࢐ϸ
ۦ३
ьԦۋۻ
߯ʂ

֨ÂÌڍ͟ں
Ԑڌॠي
ԓρߔşܵں
ۺڌॠə
ąڍق ə
ԓԐࢗ
ܳۆ҃ق
йɵॠə
ۙΒÀ
أ
35% ܶر˚ə

ìڷͿ
ǣࢍǮɰ. ̚ॢ, Fig. 8ۆ
ԐͻقԴٮ
Ïۋ
֨Â Ìڍ͟ۋ
20mmۍ
֨۾ق
ԓԐࢗ
ܳۆ҃À
ьͺʼؽڷ ǣ, 43֨Âۋ
ݓǦ
֨۾قԴ
أ
5mmۆ
ϔڍ
ۚڹ
Ìڍ

͟قԴ
ԓԐࢗÀ
ьԦॠə
ąڍʪ
ەؽɰ. ۋə
Ҽ࢐ϸ

ۦ३
ьԦ
ۋۻۆ
ԸॱÌڍÀ
ԓԐࢗ
ьԦق
ܼڅॢ
ٖ

ॳں
йࠚɰə
ìں
ۆйॠ϶, ԓԐࢗ
३ԵقԴə
ъ˚

֨
ԸॱÌڍÀ
й࠘ə
ٖॳق
ʂॢ
܁͟ۺۍ
êࢹÀ
ज़ څॠɰ.

3.2 འ⧻⏷␌⪣# ⑯ဏ# ⭌⧴(འ⧻㙳㑿⪣# ⥌㣰)

ԓԐࢗε
ٚࠑॠČ
Ժćॠə
ɳćقԴə
й͒ۆ
֬

֨Â
Ìڍε
ۺڌॠşقə
ҝঝ֬Ձۋ
ϔڍ
ࡾş
˺Л ق, ێъۺڷͿ
ঝέÌڍ͟ʪε
ۋڌॠي
ԓԐࢗε
ٚ

ࠑॢɰ. ঝέÌڍ͟ʪə
ѕս֨Ժę
Ïڹ
սėĵܓНۆ

ԺćÌڍ͟
şܵں
܃֨ॠş
ڦ३
χ˞ر
ܐڷ϶(MLIT, 2009), ߯Ŗ
ڍνǣ͆
ঝέÌڍ͟
şܵۋ
Ò܁ʼر(Ministry of Land Infrastructure and Transport, 2012) şܕۆ
Ìڍ Ìʪ-ݓ՚֨Â-ьԦҾʪ
ěćقԴ
ݓ՚֨Â(5қ, 15қ, 4320қ)ۋ
߸Àʼؽɰ(Fig. 9). Ŕ͠ǣ, ݓъėॡۺۍ
ࠑ ϸقԴ
ԓԐࢗə
ÌڍÌʪӼ
؉ɦ͆
ߪ
Ìڍ͟قʪ
л ÇՁۋ
ࡾó
ǣࢍǣдͿ, ঝέÌڍ͟ʪε
ԓԐࢗ
३Ե ق
ۺڌॠş
ڦ३Դə
߯ՙॢ
ݓ՚֨Âę
ьԦҾʪق

ʂॢ
Ժćşܵۋ
սςʼرآ
ॠǣ
ইۦ
ĶǴٽͿ
ۻИ

ॢ
֬܁ۋɰ. ˰͆Դ, ҆
ۼقԴə
ঝέÌڍ͟ʪ
Ԑͻ

३Եں
ࣀॠي
ঝέÌڍ͟ʪۆ
Ìڍܓæę
ԓԐࢗ
ь Ԧęۆ
ěćε
қԵॠٕɰ.

Ԑͻ
३Եڹ
Fig. 9ق
ǣࢍǶ
цٮ
Ïۋ
Դڐěࠑՙۆ

ঝέÌڍ͟ʪε
Ԑڌॠٕɰ. ݓ՚֨Âۋ
ţرݙق
˰͆

ÌڍÌʪə
Çՙॠǣ, ߪ
Ìڍ͟ۋ
ݓ՚ۺڷͿ
࠶ݓə

࣢Ձۋ
ەڷдͿ, ԓԐࢗ
३ԵقԴə
ݓ՚֨Âۋ
š
ܓ æں
Ԑڌॠə
ąڍ
؋܁Ձۋ
Àۤ
ҝνॠó
ǣࢍǣó

ʽɰ. Ŕ͠ǣ, ֬܃
ইԜقԴə
ߪ
Ìڍ͟
ۋٽقʪ
Ì

㉔䚽ᵉ㟤㝴G 䜸㣙G ⯜Ḵ䢕㍌⥙㡸G Ḕ⥘䚐G ㇤㇠䈐G 䚨㉑G ⵝⷉG 㥐㙼

4:

Ilj1# 431# Irxu# fdvhv# ri# udlqidoo# sdwwhuqv# edvhg# rq# LGI# fxuyh

Ilj1#441#Sruh0zdwhu#suhvvxuh#dorqj#wkh#vrlo#ghswk#zlwk#ydulrxv#

udlqidoo# sdwwhuqv Ilj1# 451# Idfwru# ri# Vdihw|# iru# ydulrxv# udlqidoo# sdwwhuqv

ڍ
Ìʪ, Ìڍ
ःࢤ
ф
Ըॱ
Ìڍ
ˣۆ
ٖॳۋ
҄०ۺڷ Ϳ
ۚڌॠي
ԓԐࢗÀ
ьԦॠó
ʽɰ. ˰͆Դ, ঝέÌڍ ÌʪͿҙࢢ
ۋ͠ॢ
ي͠
Àݓ
ÌڍЛ܃ٮ
ԓԐࢗ
ьԦ ق
ʂॢ
ěćε
қԵॠş
ڦॠي
Ϥ۹, ঝέÌڍ͟ʪͿ ҙࢢ
24֨Â
ݓ՚
ߪ
Ìڍ͟ę
1֨Â
ݓ՚
߯ʂ
ÌڍÌ ʪε
ۋڌॠي
Fig. 10ę
Ïۋ
Ìڍ
ःࢤں
ԓ܁ॠٕɰ.

ःࢤ
Iڹ
1֨Â
߯ʂÌڍÌʪε
24֨Â
ݓ՚şÂ
ܼ
À ڏʚق
ڦ࠘֨ࡎڷ϶, ःࢤ
IIə
υݓφق, ःࢤ
IIIڹ
ߌ ڼق, ŔνČ
ःࢤ
IVə
ঝέÌڍ͟ʪٮ
Ïۋ
ʴێॢ

ÌڍÌʪε
24֨Â
ݓ՚şÂ
Œێॠó
ۺڌॠٕɰ.

ۋٮ
Ïۋ
Ìڍ
ःࢤۆ
ٖॳں
қԵॠş
ڦॠي
Ԝڌ

॒ͿŔ͖
GEO-SLOPE(2012)ں
ۋڌॠي
ИॢԐϸۆ
ࠞ

࣊
ф
Ԑϸ؋܁
३Եں
սॱॠٕɰ. يşԴ, Ìڍܓæڹ

Fig. 10ں
ۺڌॠٕڷ϶, Ìڍܓæ
ۋٽۆ
३Ե
ф
ąć ܓæڹ
Kim et al.(2004)ę
ʴێॠó
ۺڌॠٕɰ. Ŕ
Ā ę, Ìڍ͟ۋ
ˏͿ
ݚܼʼə
ःࢤ
IIۆ
ąڍ
֥ڰʂ
Ūۋ À
2.0mͿ
Àۤ
Ūó
ǣࢍǮڷ϶, Ìڍ͟ۋ
ؘڷͿ
ݚ

ܼʼə
ःࢤ
IIIۆ
ąڍ
֥ڰʂ
ŪۋÀ
Àۤ
ثڹ
0.6m Ϳ
ǣࢍǮɰ(Fig. 11). Ҽ࢐ϸۆ
؋ۻڱڹ
ÌڍÀ
ˏͿ

ݚܼʼر
ەə
ःࢤ
IIقԴ
0.97Ϳ
Àۤ
ǰó
ǣࢍǮČ, ÌڍÌʪÀ
ێ܁ॢ
ःࢤ
IVə
1.13ڷͿ
˃
ѥݫ
ǰڹ

Āęε
ǣࢍǴؽɰ. ÁÁۆ
ःࢤق
˰͆
ÌڍÀ
ݚܼʼ ə
ĵÂقԴ
ۻъۺڷͿ
߯ՙ؋ۻڱں
ǣࢍǴČ
ەڷ ǣ, ۻ঳ۆ
ۺڹ
Ìڍ͟قԴə
҃ɰ
ࢀ
؋ۻڱں
҃ۋä ǣ(ःࢤ
I, II), ؋ۻڱۋ
śü০
ݒÀॠə
ąॳ(ःࢤ
I, III)ں
ǣࢍǴؽɰ(Fig. 12). ۋٮ
Ïۋ
ߪ
Ìڍ͟ę
߯ʂ

ÌڍÌʪÀ
ʴێॢ
ܓæقԴʪ
Ìڍःࢤق
ۆ३
؋ۻ ڱۆ
ѺজÀ
ࡾó
ǣࢍǣдͿ, şܕۆ
ঝέÌڍ͟ʪε

ϼঝॢ
şܵ
ػۋ
ŔʂͿ
ԓԐࢗ
ٚࠑق
ۺڌॠşقə

ॢćÀ
ەə
ìڷͿ
ǣࢍǮɰ. Ŕ͠ǣ, ѻʪۆ
Ժćşܵ

ۋ
ػə
ই
Ԝডں
Ç؋ॠϸ
Ìڍق
ʂॢ
ي͠
Àݓ
л Çʪ
қԵں
߿қ০
սॱॠي
ԺćÌڍε
Ā܁ॠČ, ۋ ε
ц࢖ڷͿ
ԓԐࢗ
ٚࠑں
սॱॠيآ
ॣ
ìڷͿ
ࣺɳ ʽɰ.

3.3 འ⧻⏷␌⪣# ⑯ဏ# ⭌⧴(⑫㣔འ⧻⪣# ⥌㣰)

ԸॱÌڍÀ
ԓԐࢗق
й࠘ə
ٖॳڹ
ࣀćۺۍ
ٍĵ ε
ࣀॠي
ψۋ
؎Ͳ܋
ەڷǣ(Yune et al., 2010; Hwang, 2013), Ժćق
ۺڌॠş
ڦ३Դə
३Եۺۍ
êݒę
ą ćܓæ
ф
ϔÒѺսق
ʂॢ
ٍĵÀ
ज़څॠɰ. ˰͆Դ,

҆
ۼقԴə
Fig. 13ę
Ïڹ
Ìڍ
Ԑͻε
ۋڌॠي
Ըॱ

Ìڍ
ٖॳق
ʂॢ
३Եۺۍ
қԵں
սॱॠČ, Ժćɳć قԴ
ԸॱÌڍε
ČͲॣ
ս
ەə
ąćܓæ
ф
ϔÒѺս ق
ʂॢ
ٍĵε
սॱॠٕɰ.

ԸॱÌڍ
মęε
ČͲॠş
ڦॠي
Table 3ę
Ïۋ
Ը

4;

Ilj1# 461# Fdvhv# ri# udlqidoo# sdwwhuq

Ilj1# 471# Zhwwlqj# edqg# ghswk# zlwk# ydulrxv# udlqidoo# sdwwhuqv

Wdeoh# 61# Vhtxhqwldo# dqdo|vlv# fdvhv

Dqwhfhghqw# udlqidoo# + ¢

, Wlph# jds# + ­

, Udlqidoo# lqwhqvlw|# + ¢ ,

H{lvwhqfh +Fdvh# D,

3# ku 43# pp2ku

57# ku 53# pp2ku

4;3# ku 63# pp2ku

573# ku 0

Qrw

+Fdvh# E, 0

43# pp2ku 53# pp2ku 63# pp2ku

Ilj1# 481# Zhwwlqj# edqg# ghswk# iru# hodsvhg# wlph# diwhu# dqwhfhghqw#

udlqidoo

Ilj1# 491# Glvwulexwlrq# ri# pdwulf# vxfwlrq# zlwk# ydu|lqj# udlqidoo

ॱ
Ìڍ(

¢

­

¢

ɰ. Ըॱ
ÌڍÀ
ەə
Case Aٮ
ԸॱÌڍÀ
ػə
Case Bۆ
Āęε
Ҽİॠϸ, Fig. 14قԴٮ
Ïۋ
Ըॱ
ÌڍÀ

ەə
ąڍÀ
ػə
ąڍق
Ҽ३
أ
2ѕ
ۋԜۆ
֥ڰʂ

ŪۋÀ
঍Ձʼə
ìں
ঝۍॣ
ս
ەؽɰ. ̚ॢ, Ըॱ
Ì ڍۆ
ڮИٮ
ěćػۋ
ԓԐࢗ
ڮь
Ìڍ͟ۋ
࠶ݙق
˰

͆
֥ڰʂ
ŪۋÀ
Ը঍ۺڷͿ
ݒÀॠə
ìڷͿ
ǣࢍǮ ɰ. ŔνČ, Ըॱ
Ìڍ
ۋ঳
ԓԐࢗ
ڮь
Ìڍūݓۆ
֨

Âę
֥ڰʂ
Ūۋ
ěćε
қԵॢ
Āę, Fig. 15ق
ǣࢍǦ

цٮ
Ïۋ
Ըॱ
Ìڍ
ۋ঳
أ
48֨Âۋ
ąęॠϸ
֥ڰʂ ۆ
ŪۋÀ
äۆ
ݒÀॠݓ
؍ə
ąॳں
ٕ҃ɰ. ۋ͠ॢ

Āęə
Ըॱ
Ìڍق
ۆ३
৚ۆ
ߕۺ॥սҼ
ݒÀٮ
Ͽě ড়սͳۋ
Çՙ॥ق
˰͆
֥ڰʂÀ
Ūó
ьԦॠݓχ, ॢ ѥ
Çՙॢ
Ͽěড়սͳڹ
ÌڍÀ
ػə
şÂ
ʴ؋
ɰ֨

ধ҄ॠي
ێ܁ॢ
ÉڷͿ
սͶॠş
˺Лق(Fig. 7, Fig.

16) ێ܁
֨Â
ۋ঳قə
ʌ
ۋԜۆ
֥ڰʂ
Ūۋ
ݒÀÀ

ػə
ìڷͿ
ࣺɳʽɰ.

3.4 㥏⫰#ᷳ။㪬╣᭰#࿻၇᳇#㦧⧴㢧#⑫㣔འ⧻#⥌㣰#࿋⳨#

҆
ٍĵقԴə
ԸॱÌڍ
মęٮ
ąćܓæ
ф
ϔÒѺ սق
ʂॢ
êݒں
ڦॠي
ইۤ
Ͽěড়սͳ
ࠑ܁
Āęٮ

㉔䚽ᵉ㟤㝴G 䜸㣙G ⯜Ḵ䢕㍌⥙㡸G Ḕ⥘䚐G ㇤㇠䈐G 䚨㉑G ⵝⷉG 㥐㙼

4<

Ilj1# 4:1# Iorz# fkduw# ri# lqwhjudwhg# odqgvolgh# dqdo|vlv

֬܃
Ìڍʚۋࢍε
ۋڌॢ
ࠞ࣊३Ե
Āęε
Ҽİ
қԵ ॠٕɰ. ইۤ
ćࠑڹ
2.2ۼق
سśॢ
цٮ
Ïۋ
ʂԜ
ݓ

ً, ćࠑ
şÂ, Ժ࠘
ѓѪ
ф
ڦ࠘À
ʴێॠ϶, ۤͳć

ćࠑۋ
սॱʼə
ĵÂق
ۙʴ
Ìڍ͟
ࠑ܁ćε
Ժ࠘ॠ ي
֬֨Â
Ìڍʚۋࢢε
սݚॠٕɰ. ćࠑĀę, æş
֨

Ͽěড়սͳڹ
थŒۺڷͿ
7585kPaڷͿ
ࠑ܁ʼؽڷ

϶, Ìڍ֨
0kPa, ٍ՚Ìڍ
ܛΒ
أ
2ێ
ąę
঳
أ
10

20kPaۆ
Ͽěড়սͳڷͿ
սͶॠə
ìڷͿ
ǣࢍǮɰ. ۋ

şÂ
ʴ؋
ࠑ܁ʽ
Ìڍʚۋࢢε
ۋڌॠي
ࠞ࣊३Եں

սॱॠٕڷ϶, ćࠑʽ
Ͽěড়սͳ
Ѻজε
ۺۼ০
ٚࠑ ॠə
ìڷͿ
ǣࢍǮɰ(Fig. 16). يşԴ, 6ښ
29ێ
Ìڍ

ۋ঳
Ͽěড়սͳۋ
1020kPaͿ
սͶॠɰÀ
ĵÂق Դ
ɰ֨
ݒÀॠə
ìڹ
7ښ
5ێ
ۋ঳ق
ьԦʽ
Ìڍۆ

ٖॳۍ
ìڷͿ
ࣺɳʼ϶, ࠞ࣊३ԵقԴʪ
Ҽ֦ॢ
ąॳ ں
ٕ҃ɰ. ˰͆Դ, ԓԐࢗ
३Ե
֨
ߣş
ąć
ܓæڷͿ

৚ۆ
ߣş
Ͽěড়սͳ
̚ə
ս࠘३ԵڷͿҙࢢ
ԓ܁ʽ

Ͽěড়սͳں
ۺڌॣ
ս
ەڷ϶, ۋ
ąڍ
Figs. 14-15ۆ

ĀęͿҙࢢ
ԓԐࢗ
३ԵقԴ
Ըॱ
Ìڍ
মęε
ČͲॣ

ս
ەə
ìڷͿ
қԵʼؽɰ.

4. 㥏⫰# ᷳ။㪬╣᭰⪏# ⪿⧴㢧# ⏻⏷㐧# 㢿⑨# ὴῠ#

⭧⢓# ὚# ⭌⧴

4.1 ⏻⏷㐧# 㢿⑨# ὴῠ# ⭧⢓

ࠞ࣊
ф
Ԑϸ؋܁३ԵقԴə
Ìڍ, ݓъۆ
ߣş
Âŕ

53

Ilj1# 4;1# Vrlo# suriloh# iru# wkh# vhohfwhg# vorsh

սؓ, ݓॠս
ˣ
ɰتॢ
ąćܓæۋ
҄ۡॠó
طঅ
ە ر, ۋε
ϼঝॠó
ĵқॠي
ۺڌॠə
ìۋ
رͲڏ
Л܃

ۋɰ. ݌, ݓъۆ
ߣşÂŕսؓę
ݓॠսۆ
қपə
Ըॱ Ìڍق
ݓѕ
ыČ, ࠞ࣊ə
ߣşÂŕսؓق
ٖॳں
ыڷ

϶, Ҽ࢐ϸ
؋ۻڱڹ
Ìڍۆ
ࠞ࣊
Āęق
ࢀ
ٖॳں
ы əɰ. ࣢০, ߣş
ܓæں
ݓѕॠə
څۍڹ
ԸॱÌڍۋд Ϳ
ۋε
ر̎ó
ČͲॠɗǽق
˰͆
Ԑϸ؋܁३Ե
Āę À
ɵ͆ݕɰ. ࠞ࣊३ԵقԴ
Ըॱ
Ìڍۆ
ٖॳڹ
ইۤć ࠑں
ࣀॢ
ݓъۆ
ߣş
Ͽěড়սͳڷͿ
ĵইॣ
ս
ەڷ

϶, ইۤćࠑ
ĀęÀ
ػə
ąڍ
֬֨Â
ÌڍۙΒε
ۋڌ

ॢ
ࠞ࣊३Եں
ࣀ३
ߣş
Ͽěড়սͳ
қपε
ԓ܁ॣ
ս

ەɰ.

҆
ۼقԴə
ইۤ
Ͽěড়սͳę
ԸॱÌڍε
ČͲॢ

ԓԐࢗ
३ԵѓѪں
3Àݓ
ɳćͿ
܃؋ॠٕڷ϶, ৔ζʪ (flow chart)ə
Fig. 17ق
ʪ֨ॠٕɰ.

Step 1) Ժć
ݓًۆ
ݓъܓԐε
ࣀ३
ş҆НՁ
ф
ҝ पজ
࣢Ձں
ԓ܁ॢɰ. ŔνČ
ԸॱÌڍε
ČͲॣ
ս
ە ə
Ìڍܓæں
Ā܁ॢɰ(3ۤ
޷ܓ).

Step 2) ԸॱÌڍ
মęε
ČͲॢ
ߣş
Âŕսؓ
қ पε
ԓ܁ॠş
ڦॠي
ইۤ
Ͽěড়սͳ
ćࠑں
սॱ

ॢɰ. ইۤćࠑۙΒÀ
ػə
ąڍ, 1޲ڙ
ࠞ࣊Ͽʝ(ߪ

2ɳć)ں
ۋڌॠي
֥ڰʂ
Ūۋε
Ā܁ॠČ(ИॢԐϸ

ࣷĨ
३Ե), 1޲ڙ
ࠞ࣊Ͽʝ(ߪ
2ɳć)ę
2޲ڙ
ࠞ࣊

३Եں
ۋڌॠي
Âŕսؓқपε
Ā܁ॢɰ(ڙ঒ট ʴࣷĨ
३Ե).

Step 3-1) (ڙ঒টʴࣷĨ
३Ե) Ҽ࢐ϸۆ
ߣş
ąćܓ æں
ĵইॠş
ڦॠي
Ժć
ʂԜ
Ҽ࢐ϸں
Ͽʝτ
ॢ

঳, ؓͳս˃
ąćܓæں
ۋڌॠي
1޲ڙ
ࠞ࣊ϿʝͿҙ ࢢ
ԓ܁ʽ
Âŕսؓ
қपε
ۺڌॢɰ. ŔνČ
ԓԐࢗ
ڮ ьÌڍε
ۺڌॢ
ࠞ࣊३Եں
սॱॠي
߯ܛ
Âŕսؓ

қपε
Ā܁
ॢ
঳, Ԑϸ؋܁३Եں
սॱॢɰ.

Step 3-2) (ИॢԐϸࣷĨ
३Ե) 1޲ڙ
ࠞ࣊ϿʝͿҙࢢ

ԓ܁ʽ
Âŕսؓ
қपε
ߣş
ąćܓæڷͿ
Ժ܁ॠČ

ԓԐࢗ
ڮьÌڍε
ۺڌॠي
֥ڰʂ
Ūۋε
ԓ܁ॢɰ.

ۋε
Ԑϸ؋܁३Եق
ۺڌॠş
ڦॠي
Ժć
ʂԜ
Ҽ࢐

ϸں
Ͽʝτ
ॢ
঳, Ā܁ʽ
֥ڰʂ
Ūۋ
ǴقԴ
ثڹ
ࣷ

ĨÀ
ьԦ
ॠʪ΀
Ԑϸ؋܁३Եں
սॱॢɰ.

4.2 ⭧⢓ᝧ# ⏻⏷㐧# 㢿⑨# ὴῠ⪣# ⭌⧴

҆
ۼقԴə
4.1ۼقԴ
܃֨ॢ
ԓԐࢗ
३ԵѓѪۆ
ۺ ڌՁę
Ŕ
ę܁ں
ۋ३ॠş
ڦॠي
OOԓ
ԓԐࢗ
Ԑͻ

ε
ࣀ३
ٍć३Ե(GEO-SLOPE, 2012)ں
սॱॠٕɰ.

Ϥ۹
܃
1ɳćۍ
ইۤ
ф
֬Ǵ֬ॹں
սॱॠٕɰ. ʂԜ ݓًڹ
Fig. 18ę
Ïۋ
ңۺࠗ
؉͒Ϳ
ॄজࢹ, ॄজؒ,

ٍؒۋ
ܕۦॠə
ìڷͿ
ǣࢍǮڷ϶, ԓԐࢗə
ʂҙқ

ңۺࠗقԴ
ьԦॢ
ìڷͿ
ܓԐʼؽɰ. ˰͆Դ
أ
2.8

6.9m ֮ʪۆ
ңۺࠗχ
Ͽʝτ
ॠٕڷ϶, ş҆ۺۍ
НՁ ڹ
ইۤ
ф
֬Ǵ
֬ॹڷͿҙࢢ
ԓ܁ʽ
Éں
Ԑڌॠٕɰ (Fig. 2, Table 1). ŔνČ
३Եق
ज़څॢ
ݓъۆ
ߣş
Ͽ ěড়սͳں
ࣷ؊ॠş
ڦॠي
ইۤ
Ͽěড়սͳ
ćࠑ
ॠ

ٕڷ϶(2.2ۼ
޷ܓ), æܓԜࢗۆ
Ͽěড়սͳۋ
أ
75

85kPa ܁ʪۆ
ѩڦε
ٕ҃ş
˺Лق
ࠞ࣊३ԵقԴə
ߣ ş
Ͽěড়սͳں
80kPaں
ۺڌॠٕɰ. ̚ॢ
ࠞ࣊३Եق

Ԑڌʼə
॥ս࣢ՁčԸę
ҝपজ
࣊սćսə
2ۤۆ
Figs.

3-4, Table 2ق
ǣࢍǶ
Éں
Ԑڌॠٕɰ.

4.2.1 ᙻᡰⲏ⿌# ⟻㹣⏳# ⚏へ㿓# ㅇ䂯䃓Ṑ㶃ឫ# 㿫⮔

ԸॱÌڍε
ČͲॢ
ڙ঒টʴ
ࣷĨ
३Եں
ڦॠي, 1

޲ڙ
ࠞ࣊Ͽʝں
ۋڌॠي
Ͽěড়սͳ
қपε
ԓ܁ॠ

ٕɰ.

(1) Fig. 19(a)ٮ
Ïۋ
ݓъں
şˊ(column)঍ࢗͿ
Ͽʝ τ
ॢ
঳, ؓͳս˃(pressure head) ąćܓæں
ۋڌ ॠي
æܓԜࢗۆ
ߣş
Ͽěড়սͳ(80kPa)ں
ۺڌ

ॠČ, Ìڍܓæ
ػۋ
܁ԜԜࢗ
ࠞ࣊३Ե(steady-state seepage)ں
Ϥ۹
սॱॠٕɰ.

(2) Ŕ
ɰڼ
ԸॱÌڍ
ٖॳں
ČͲॠş
ڦॠي
ۻ
ɳć

㉔䚽ᵉ㟤㝴G 䜸㣙G ⯜Ḵ䢕㍌⥙㡸G Ḕ⥘䚐G ㇤㇠䈐G 䚨㉑G ⵝⷉG 㥐㙼

54

# # # # # # # # # # # # # # # # # # # # # # # # # # # +d,# Lqlwldo# pdwulf# vxfwlrq# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # +e,# Frqvlghulqj# dqwhfhghqw# udlqidoo Ilj1# 4<1# Rqh0glphqvlrqdo# vhhsdjh# prgho

Ilj1# 531# Vrlo# vorsh# phvk# xvhg# iru# wzr0glphqvlrqdo# vhhsdjh#

dqdo|vlv/#erxqgdu|#frqglwlrqv#dqg#uhvxowv#ri#sruh0zdwhu#

suhvvxuh# glvwulexwlrq

Ilj1#541#Uhvxowv#ri#vorsh#vwdelolw|#dqdo|vlv#frqvlghulqj#dqwhfhghqw#

udlqidoo

قԴ
३Եʽ
Āęε
Ҽ܁ԜԜࢗ
ࠞ࣊३Ե(transient seepage)ۆ
ߣşÉڷͿ
ۓͳॢ
঳, ݓशϸق
unit flux(q) ąćܓæں
ۋڌॠي
ॢɵ
ʴ؋ۆ
֬֨Â
Ìڍε

ۺڌॠٕɰ. ۋ˺, ܟڍࠑ
ąćܓæڹ
nodal flux(Q) ε
ۺڌॠي
৔ζۋ
ػə
Ԝࢗ(no flow zone, Q=0) Ϳ
Ժ܁ॠٕɰ(Fig. 19b). Ŕ
Āę, ݓъ
Ԝҙۆ
Ͽě ড়սͳڹ
أ
20kPaͿ
ǣࢍǮڷ϶, ॠҙقԴə
23kPa ۆ
تۆ
Âŕսؓۋ
ԓ܁ʼؽɰ.

(3) ۋͩó
ԓ܁ʽ
Âŕսؓ
қपə
ԸॱÌڍق
ۆॢ

Ҽ࢐ϸ
ߣş
ԜࢗͿ
Âܳॠي
Fig. 20ę
Ïۋ
Ҽ࢐

ϸں
Ͽʝτ
ॢ
঳
ؓͳս˃ε
ۋڌॠي
ߣş
Âŕ սؓ
Ԝࢗε
ĵইॠٕɰ. ŔνČ
ԓԐࢗÀ
ьԦॢ

4ێۻۆ
֬֨Â
Ìڍε
Ҽ࢐ϸ
Ԝҙق
unit flux(q) ąćܓæڷͿ
ۓͳॠي
Ҽ࢐ϸ
ۻߕۆ
Âŕսؓ
қ पε
ԓ܁ॠٕɰ.

(4) ڙ঒টʴق
ۆॢ
Ԑϸ؋܁३Եں
ڦॠي
ࠞ࣊३Ե قԴ
Ԑڌʽ
ڮॢڅՙϐ(mesh)ę
ćԓʽ
Âŕսؓ

қपε
SLOPE/Wق
ŔʂͿ
ٍʴ֨ࡈ
Ҽ࢐ϸۆ
؋

ۻڱں
ԓ܁ॠٕɰ. Ŕ
Āę
Fig. 21ę
Ïۋ
Ҽ࢐ϸ

ԜҙقԴ
؋ۻڱۋ
1.0 ҃ɰ
ۚڹ
Éں
ٕ҃ڷ϶,

֬܃
߯ߣ
ԓԐࢗ
ьԦ
ڦ࠘ٮ
ʴێॢ
ìڷͿ
ǣࢍ

Ǯɰ.

55

Ilj1#551#Rqh0glphqvlrqdo#vhhsdjh#dqdo|vlv#iru#zhwwlqj#edqg#ghswk

Ilj1#561#Uhvxowv#ri#vorsh#vwdelolw|#dqdo|vlv#xvlqj#zhwwlqj#edqg#ghswk

4.2.2 ⴬㆛ᵷぇ# ㇏㿓# ▫㿓⬣⓫㶃ឫ# 㿫⮔

Ҽ࢐ϸ
Ժć
֨
३Ե
ɳϸۋ
ψڹ
ąڍǣ
ИॢԐϸ

ࣷĨε
êࢹॠə
ąڍقə
4.1ۼę
Ïۋ
ۻߕ
Ҽ࢐ϸۆ

Âŕսؓں
ćԓॠي
؋ۻڱں
ԓ܁ॠə
ìۋ
҄ۡॠ Č
ψڹ
֨Âۋ
ՙڅʼş
˺Лق
1޲ڙ
ࠞ࣊
Ͽʝں
ۋ ڌॠي
֥ڰʂ
Ūۋε
ԓ܁ॠČ
ۋε
Ԑϸ؋܁
३Եق

ۺڌॠə
ìۋ
҃ɰ
মęۺۋɰ.

(1) ԸॱÌڍε
ČͲॢ
ߣş
Ͽěড়սͳں
ČͲॠə
ę

܁ڹ
4.2.1ۼقԴ
سśॢ
ę܁ę
ʴێॠ϶(Fig. 19), Fig. 19(b)ۆ
३ԵĀęε
ɰ֨
ߣşܓæڷͿ
Ժ܁ॠي

ԓԐࢗÀ
ьԦॠş
4ێۻۆ
ÌڍۙΒε
ࣀ३
ԓԐࢗ

ьԦ
ɾ֨ۆ
֥ڰʂ
Ūۋε
ԓ܁ॠٕɰ(Fig. 22).

(2) ۋͩó
ԓ܁ʽ
߯ܛ
֥ڰʂ
Ūۋε
Ԑϸ؋܁३Եق

ۺڌॠş
ڦॠي
֥ڰʂ
Ūۋ
ǴقԴ
ࣷĨÀ
ьԦ ॠʪ΀
Ժ܁
ॢ
঳
Ԑϸ؋܁३Եں
սॱॠٕɰ. Ŕ

Āę, Fig. 23ę
Ïۋ
Ҽ࢐ϸ
ԜҙقԴ
1.0 ۋॠۆ

؋ۻڱۋ
ǣࢍǮڷ϶, ֬܃
ࣷĨ
ڦ࠘ٮ
ڮԐॢ
ì

ڷͿ
ǣࢍǮɰ. يşԴ, ݓъܓæۋ
ڮԐॠČ
Ìڍ ܓæۋ
ʴێॢ
Ҽ࢐ϸں
Ժćॣ
ąڍ, 1޲ڙ
ࠞ࣊३ Եں
߸ÀۺڷͿ
սॱॠݓ
؍؉ʪ
ćԓʽ
֥ڰʂ

Ūۋε
ݔۿۺڷͿ
Ԑϸ؋܁३Եق
ۺڌॣ
ս
ەɰ.

5. ࿻# ᮫

҆
ٍĵقԴə
ইۤ
Ͽěড়սͳę
ԸॱÌڍ
মęε

ČͲॣ
ս
ەə
ԓԐࢗ
३Ե
ѓѪں
܃؋ॠٕڷ϶, ݓъ ۆ
ҝपজ
࣢Ձں
ԓ܁ॠČ
ࠞ࣊
ф
Ԑϸ؋܁३Եق
ۺ ڌॣ
ս
ەə
ѓ؋ں
܃֨ॠٕɰ. ̚ॢ
ঝέÌڍ͟ʪε

ц࢖ڷͿ
ॢ
Ìڍःࢤę
ԸॱÌڍق
˰δ
֥ڰʂ
Ūۋ

ф
؋ۻڱ
Ѻজق
ʂ३
қԵں
սॱॠٕڷ϶, Ԑͻ
३Ե ں
ࣀ३
܃؋ʽ
ѓѪۆ
ۺڌՁں
êࢹॠٕɰ. ҆
ٍĵĀ ę
ɰڼę
Ïڹ
Ā΁ں
صں
ս
ەؽɰ.

(1) ҆
ٍĵقԴ
܃֨ॢ
ԓԐࢗ
३Ե
ѓѪڹ
ইۤ
Ͽě ড়սͳ
ࠑ܁Éę
Ìڍࠞ࣊ইԜں
ČͲॣ
ս
ەə

ѓѪڷͿ׆, 1޲ڙ
ࠞ࣊Ͽʝں
ࣀ३
ݓъۆ
ҝपজ

࣢Ձę
ԸॱÌڍ
মęε
ČͲॣ
ս
ەɰ. ŔνČ, ԓ ԐࢗÀ
ьԦॢ
ݓًں
ʂԜڷͿ
܃؋ʽ
३Ե
ѓѪ ں
ۺڌॢ
Āę, ИॢԐϸࣷĨ
ф
ڙ঒টʴࣷĨ
३ Ե
Ͽ˃قԴ
֬܃
ܓԐʽ
ԓԐࢗ
ьԦڦ࠘ε
ۺۼ ০
ٚࠑॠə
ìڷͿ
ǣࢍǮɰ.

(2) ԓݓ
Ҽ࢐ϸں
ʂԜڷͿ
Ìڍ
ьԦق
˰δ
Ͽěড় սͳں
ࠑ܁ॢ
Āę, æܓॢ
Ԝࢗۆ
Ͽěড়սͳڹ

7585kPaͿ
ǣࢍǮڷ϶, Ìڍ
ьԦ
ۋ঳
Ͽěড়ս ͳڹ
20kPa ۋॠͿ
սͶॠə
ìڷͿ
ǣࢍǮɰ. ۋ͠

ॢ
ćࠑ
Āęə
Ìڍ
ࠞ࣊՚ʪٮ
Ҽ࢐ϸۆ
ߣş
Ͽ ěড়սͳ
қपε
Ā܁ݛə
ܼڅॢ
څՙۋş
˺Лق

ԓԐࢗε
܁ঝ০
ٚࠑॠş
ڦ३Դə
ইۤ
ćࠑĀę ε
ъٖॠə
ìۋ
ц͊ݔॠɰ.

(3) Ҽ࢐ϸ
Ժć
֨, ঝέÌڍ͟ʪε
ۋڌॠي
ێ܁ॢ

ÌڍÌʪε
ۺڌॠə
ì
҃ɰ
֨Âق
˰͆
ݚܼ
Ì ڍÀ
ˏޅق
ڦ࠘ॣ
˺
֥ڰʂÀ
Ūó
঍ՁʼČ
؋

ۻڱۋ
Àۤ
ǰó
ǣࢍǫں
؎
ս
ەؽɰ. ˰͆Դ, ߪ
Ìڍ͟ę
߯ʂ
Ìڍ͟ۋ
ʴێॢ
ܓæقԴʪ
Ì ڍःࢤق
˰͆
؋ۻڱۆ
ѺজÀ
ࡾó
ǣࢍǣдͿ

ԓԐࢗ
३Ե
֨, ঝέÌڍ͟ʪق
ʂॢ
܁ঝॢ
şܵ

ں
սςॠي
Ԑڌॠäǣ
ي͠
лÇʪ
қԵں
߿қ ০
սॱॠي
ԺćÌڍε
Ā܁३آ
ॢɰ.

(4) ԸॱÌڍε
ČͲॢ
ٍć३Եں
ࣀ३
֥ڰʂ
Ūۋε

㉔䚽ᵉ㟤㝴G 䜸㣙G ⯜Ḵ䢕㍌⥙㡸G Ḕ⥘䚐G ㇤㇠䈐G 䚨㉑G ⵝⷉG 㥐㙼

56

܁͟ۺڷͿ
қԵॢ
Āę, ԸॱÌڍ(

¢

¢

­

Ͽěড়սͳ
ÇՙÀ
Ҽ࢐ϸۆ
ҝ؋܁Ձں
ݒÀ֨ࢅ

Č, ۋ঳
ьԦʽ
ÌڍͿ
ۍॠي
֥ڰʂ
ŪۋÀ
ݒÀ ॠي
Ҽ࢐ϸۋ
ࣷĨʼə
ìۋɰ. ˰͆Դ
ԓԐࢗ
३ Ե
֨
ԸॱÌڍε
ČͲॢ
३Եۋ
ъ˚֨
սॱʼر آ
ॢɰ.

(5) ۋٮ
Ïۋ
Ìڍق
ۆ३
ڮьʼə
ԓԐࢗə
ঝέÌ ڍ͟ʪق
܃֨ʽ
ÌڍÌʪٮ
ݓ՚֨Â
ۋٽقʪ
Ì ڍ
ःࢤę
Ըॱ
Ìڍ
ˣق
ψڹ
ٖॳں
ыڷдͿ
ş ܕ
ঝέÌڍ͟ʪۆ
܁őজʽ
Ìڍε
ۋڌॢ
ԓԐࢗ

ٚࠑڹ
ॢćÀ
ەɰ. ̚ॢ, ߯Ŗ
Ò܁ʽ
Ҽ࢐ϸ
Ժć şܵقԴə
Ìڍε
ČͲॢ
ࠞ࣊३Եں
ńČॠČ
ە ڼقʪ
ҝĵॠČ
ۺڌॣ
ս
ەə
Ìڍ
şܵۋ
ػر

ঝέÌڍ͟ʪق
ۆܕॣ
ս
шق
ػə
֬܁ۋɰ. ˰

͆Դ, Ìڍःࢤ, ԸॱÌڍ
ˣۆ
ԓԐࢗ
ڮьۍۙÀ

ČͲʽ
Ìڍ
Ժćşܵۆ
սςۋ
ۼ֬০
ज़څॠɰČ

ॣ
ս
ەɰ.

ཛ⏷⪣# ᅋ

҆
ٍĵə
2011țʪ
܁ҙ(й͒޻ܓęॡҙ)ۆ
ۦڙڷ Ϳ
ॢĶٍĵۦɳ(No. 2011-0030842)ۆ
ݓڙں
ы؉
ս ॱʼؽڷ϶, ۋق
Ūڹ
ÇԐε
˚ςɦɰ.

⾃ါẃ㤗# (References)

1. Ministry of Land Infrastructure and Transport (2009), River design criteria.

2. Ministry of Land Infrastructure and Transport (2012), Korea Precipitation Frequency Data Server, www.k-idf.re.kr.

3. National Disaster Management Institute (2008), A study on the steep slope information compilation and development of an analysis system, 1st report: the application of an early warning system using rainfall data in Korea.

4. Korea Forest Service (2010), Countermeasure for forest disaster in the summer season, Korea Forest Service Report, pp.21.

5. ASTM D5298-10, “Standard test method for measurement of soil potential using filter paper”.

6. Brooks, R. H. and Corey, A. T. (1964), “Hydraulic properties of porous media”, Colorado State Univ. Hydrol. Paper, No.3, pp.27.

7. Chatterjea, K. (1989), “Observation on the fluvial and slope processes in Singapore and their impact on the urban environment” PhD

Thesis. National Univ. of Singapore, Singapore.

8. Cho, S.E. and Lee, S.R. (2000), “Slope stability analysis of unsaturated soil slopes due to rainfall infiltration” Journal of Korean Geotechnical Society. Vol.16, No.1, pp.51-64.

9. Cho, S.E. and Lee, S.R. (2001), “Instability of unsaturated soil slopes due to infiltration”, Computers and Geotehcnics, Vol.28, No.

3, pp.185-208.

10. Fourie, A.B., Rowe, D., and Blight, G.E. (1999), “The effect of infiltration on the stability of the slopes of a dry ash dump”

Geotechnique, Vol.49, No.1, pp.1-13.

11. Fredlund, D.G., Xing, A., and Huang, S. (1994), “Predicting the permeability function for unsaturated soils using the soil-water characteristic curve”, Canadian Geotechnical Journal, Vol.31, pp.

533-546.

12. Fredlund, D.G. and Xing, A. (1994), “Equations for the soil-water characteristic curve”, Canadian Geotechnical Journal, Vol.31, No.3, pp.521-532.

13. Geo-slope International (2012), Seep/w for finite element seepage analysis, user’s guide, Calgary, Alta., Canada.

14. Hwang, H.G., Cho, K.M., Lee, S.W., Kim, K.H., and Yune, C.Y.

(2013), “Site Investigation on 2012 Slope Hazard in Korea and its Triggering Factors”, 2013 KGS Spring National Conference, pp.

117-120.

15. Lee, K.W., Kim, Y.M., Kim, J.H., and Jeong, S.S. (2012), “Distribution of matric suction for unsaturated soils based on filed measurement and soil-water characteristic curve test”, 2012 KGS Fall National Conference, pp.587-529.

16. Lee, S.R., Oh, T.K., Kim, Y.K., and Kim, H.C. (2009), “Influence of Rainfall Intensity and Saturated Permeability on Slope Stability during Rainfall Infiltration”, Journal of the Korean Geotechnical Society, Vol.25, No.1, pp.65-76.

17. LEE, S.J. (2004), Estimation of Unsaturated Shear Strength and Soil Water Characteristic Curve for Weathered Granite Soil, PhD Thesis. Korea Advanced Institute of Science and Technology.

18. Iverson, R.M. and Denlinger, R.P. (2001), “Flow of variably fluidized granular masses across three dimensional terrain: 1. Coulomb mixture theory”, Journal of Geophysical Research, Vol.106(B1), pp.537-552.1 19. Jeong, S.S., Kim, J.H., and Lee, K.H. (2008), “Effect of clay content

on well-graded snads due to infiltration”, Engineering Geology, Vol.102, pp.74-81.

20. Jeong, S.S., Cho, J.Y., and Lee, J.H. (2009), “Stability Analysis of Unsaturated Weathered Soil Slopes Considering Rainfall Duration”, Journal of the Korean Society of Civil Engineers, Vol.29, No.1, pp.1-9.

21. Kim, J. H. (2010), Plasticity modeling and coupled finite element analysis for partially-saturated soils. Ph.D. Thesis, University of Colorado, Boulder, US.

22. Kim, J.H., Jeong, S.S., and Regueiro, R.A. (2012), “Instability of partially saturated soil slopes due to alteration of rainfall pattern”, Engineering Geology, Vol.147-148, pp.28-36.

23. Kim, J.H., Jeong, S.S., Park, S.W., and Sharma, J. (2004), “Influence of rainfall-induced wetting on the stability ok slopes in weathered soils”, Engineering Geology, pp.251-262.

24. Soilworks (2013), Theoretical user’s manual. MIDAS IT.

25. Marchi, L., Arattano, M., and Deganutti, A.M. (2002), “Ten years of debris-flow monitoring in the Moscardo Torrent (Italian Alps),”

Geomorphology, Vol.46, pp.1-17.

57

26. Ng, C.W.W. and Shi, Q. (1998), “A numerical investigation of the stability of unsaturated soil slopes subjected to transient seepage”, Computers and Geotechnics Vol.22, No.1, pp.1-28.

27. Pham, H.Q. and Fredlund, D.G. (2004), “New apparatus for the measurement of the soil-water characteristic curves”, Proceedings of the 57

Canadian Geotechnical Conference, Quebec, Quebec City, Canada

28. Rahardjo, H., Li, X.E., Toll, D.G., and Leong, E.C. (2001), “The effect of antecedent rainfall on slope stability”, Geotechnical and Geological Engineering. Vol.19, pp.371-399.

29. Tan, S.B., Tan, S.L., Lim, T.L., and Yang, K.S. (1987), “Landslide problems and their control in Singapore.” Proceedings of the 9th Southeast Asian Geotechnical Conference. vol.1 Bangkok, Thailand, pp.25-36.

30. Vanapalli, S. K., Fredlund, D. G., Pufahl, D. E., and Clifton, A.

W. (1996), “Model for the prediction of shear strength with respect

to soil suction”, Can. Geotech. J., Vol.33, pp.379-392.

31. van Genuchten, M. T. (1980), “A closed form equation for prediction the hydraulic conductivity of unsaturated soils”, Soil Science Society America Journal, Vol.44, pp.892-898.

32. Wei, J., Heng, Y.S., Chow, W.C., and Chong, M.K. (1991), “Landslide at Bukit Batok sports complex”, Proceedings of the 9th Asian Conference on Soil Mechanics and Foundation Engineering. vol.

1. Balkema: Rotterdam; Bankok, Thailand. pp.445-448.

33. Yune, C.Y., Kim, K.S., Lee, S.W., Jun, K.J., and Kim, G.H. (2010),

“Analysis of Slope Hazard-Triggering Rainfall Characteristics in Gangwon Province by Database Construction”, Journal of the Korean Geotechnical Society, Vol.26, No.10, pp.27-39.

Received : May 15

, 2013

Revised : November 11

, 2013

Accepted : December 12

, 2013