การวิเคราะห์สาเหตุการวิบัติของเชิงลาดด้วยวิธีสมดุลจำกัดและวิธีไฟไนต์อิลิเมนต์และแนวทางการปรับปรุงการแก้ไข : กรณีศึกษา ทางหลวงหมายเลข 1270  ตอน กองลอย – แม่แฮใต้ ที่ กม.21+000

Supracha Kamana; Pongsagorn Poungchompu

Authors

Supracha Kamana นักศึกษา หลักสูตรวิศวกรรมศาสตรมหาบัณฑิต สาขาวิชาวิศวกรรมโยธา มหาวิทยาลัยเทคโนโลยีราชมงคลอีสาน วิทยาเขตขอนแก่น
Pongsagorn Poungchompu ผู้ช่วยศาสตราจารย์ ภาควิชาวิศวกรรมโยธา คณะวิศวกรรมศาสตร์ มหาวิทยาลัยเทคโนโลยีราชมงคลอีสาน วิทยาเขตขอนแก่น

Keywords:

Slope Failure, Limit Equilibrium Method, Finite Element Method

Abstract

This research aimed to investigate a failure of highway embankment No.1270, Kong Loi - Mae Hae Tai, Chiang Mai Province. It appllied two different geotechnical engineering methods, limit equilibrium method and finite element method. The results showed that limit equilibrium method and finite element method obtained the R² values of 0.935 and 0.960, respectively which are similar. The main factor affecting a slope failure is the water flowing from the embankment and to the unprotected slope. This causes an erosion that begins at the toe slope and gradually progresses to the main structure up to the pavement layer.

References

Visudmedanukul P. Foundation Engineering Handbook, SE-EDUCATION Public Company Limited, Bangkok. 2015.

Chimoye W. Foundation analysis and design, Department of Civil Engineering, Faculty of Engineering, Thammasat University. 2001.

Whitman RV, Bailey WA. Use of computers for slope stability analysis. J. Soil Mech. Found, Div, ASCE 93. 1967.

Tunmung P. Comparisons of Analysis Results of Slope Stability between Limit Equilibrium Method and Finite Element Method, Thai Science and Technology Journal, Vol.24 (1). 2016.

ASTM D 422. Standard test method for particle-size analysis of soils. In Annual Book of ASTM Standards.04.08. Philadelphia: American Society for Testing and Materials, USA. 2007.

ASTM D 4318. Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity index of Soils. In Annual Book of ASTM Standards. 04.08. Philadelphia: American Society for Testing and Materials, USA. 2010.

ASTM D 698. Standard Test Method for Laboratory Compaction Characteristics of Soil Using Standard Effort, USA. 2007

ASTM D 3080. Standard test method for direct shear test of soils under consolidated drained conditions. In Annual Book of ASTM Standards. 04.08. Philadelphia: American Society for Testing and Materials, USA. 2014.

Joseph E. Bowles. Foundation Analysis and Design, 1988.

Budhu M. Soil Mechanics and Foundations, 2000.

Kulhawy F H, Trautmann, C H, Beech J.F, O’Rourke T D, Mc Guire W. 1983.

Whitlow. Basic Soil Mechanics, 1995.

Navfac Design Manual 7.10 Soil Mechanic, Department of the Naval Facilities Engineering Command, Chapter 7, Slope Stability and Protection. 1986.

Kanjanakaroon P. The Study of Embankment Breach from Overtopping Flow near, Hydraulic Structure by Physical Model, SWU Engineering Journal, Vol.10 (1), 12-21 2015.

Witthawatchutikul P. Basin hydrology model River Basin Group, Research and Development Section Forest environment. FOREST RESEARCH AND DEVELOPMENT OFFICE, 1991.

Voottipruex P. The Prevention of Soil Erosion Using a Combination of Natural Fiber with, Vetiver Grass and Ruzi Grass. The Journal of KMUTNB, Vol. 23 (2): May.-Aug. 2013.

Department of Highways. Standard Drawing for Highways Design and Construction (revision 2015), Ministry of transport, Thailand. 2018.

Department of Highways. Guide to correcting and operating the erosion and slope movement, Bureau of Road Research and Development, Department of Highways, ministry of transport, Thailand. 2008.