1 引言

由于看近期一個工程事故涉及到機(jī)械式穩(wěn)定土墻MSEW, 因此花了幾個小時回顧了GeotechSet數(shù)據(jù)集, 產(chǎn)生出兩個新的數(shù)據(jù)集:

(1) mechanically stabilized earth retaining walls

(2) Mechanically Stabilized Earth Walls

大多數(shù)文獻(xiàn)稱作Mechanically Stabilized Earth Walls, 簡稱MSEW. 在目前回顧的文獻(xiàn)中, 下面這些文檔對此作了較為詳細(xì)的解釋:

(1) WisDOT Bridge Manual Chapter 14 – Retaining Walls [258p.]

(2) Braja M. Das (2007) Fundamentals of Geotechnical Engineering. THIRD EDITION. 637p.

(3) Murthy V.N.S (1996) Geotechnical Engineering: Principles and Practices of Soil Mechanics and Foundation Engineering tting a major. [1048p.]

2 MSEW分析與設(shè)計

MSEW的分析和設(shè)計可以使用ADAMA Engineering Inc. 編制的MSEW(3.0) 軟件.  MSEW(3.0) 遵循著美國高速公路設(shè)計規(guī)范, 例如AASHTO98, AASHTO02/FHWA-NHI-00-043, AASHTO 2007-2010, or NCMA97/98等. 如果需要進(jìn)行復(fù)雜的應(yīng)力和應(yīng)變分析, FLAC/FLAC3D的結(jié)構(gòu)元提供了更強(qiáng)大的計算功能, 特別能夠處理Geotextile和Geogrids單元. Geogrid數(shù)據(jù)集正在準(zhǔn)備中. 

3 參考文獻(xiàn)

[1] FHWA (2001). Mechanically stabilized earth walls and reinforced soil slopes (Elias, V, Christopher, B.R. and Berg, R.R.). FHWA-NHI-00-043, Federal Highway Administration, Washington, D.C., USA. 

[2] Chalermyanont, T. and C. Benson (2005). "Reliability-Based Design for External Stability of Mechanically Stabilized Earth Walls." International Journal of Geomechanics 5(3): 196-205.

[3] Chalermyanont, T. and Benson, C.H. (2004). “Reliability-based design for internal stability of mechanically stabilized earth walls”, Journal of Geotechnical and Geoenvironmental Engineering, 130(2), pg. 163-173.

[4] Turner, J. and W. Jensen (2005). "Landslide Stabilization Using Soil Nail and Mechanically Stabilized Earth Walls: Case Study." Journal of Geotechnical and Geoenvironmental Engineering 131(2): 141-150.

[5] Yang, K., et al. (2011). "Reliability-Based Design for External Stability of Narrow Mechanically Stabilized Earth Walls: Calibration from Centrifuge Tests." Journal of Geotechnical and Geoenvironmental Engineering 137(3): 239-253.

[6] Kim, D. and R. Salgado (2012). "Load and Resistance Factors for External Stability Checks of Mechanically Stabilized Earth Walls." Journal of Geotechnical and Geoenvironmental Engineering 138(3): 241-251.

[7] Kim, D. and R. Salgado (2012). "Load and Resistance Factors for Internal Stability Checks of Mechanically Stabilized Earth Walls." Journal of Geotechnical and Geoenvironmental Engineering 138(8): 910-921.

[8] Stuedlein, A., et al. (2012). "Assessment of Reinforcement Strains in Very Tall Mechanically Stabilized Earth Walls." Journal of Geotechnical and Geoenvironmental Engineering 138(3): 345-356.