POSSIBILITY OF USING COMPACTED GEO-MATERIALS AS STRUCTURAL MEMBERS

• Published in: Doboku Gakkai ronbunshū. C, Journal of geotechnical and geoenvironmental engineering Vol. 66; no. 4; pp. 757 - 775
• Main Authors: OHTA, Hideki, UCHITA, Yoshihisa, FUJIYAMA, Tetsuo, ARAI, Yukio, ISHIGAKI, Tsutomu, TATTA, Naoki, HAYASHI, Yusuke
• Format: Journal Article
• Language: English
• Published: 01.01.2010
• Subjects: Compacting; Earth; ELECTRODEPOSITION; Embankments; Highways; MATHEMATICAL ANALYSIS; Mathematical models; Modelling; Pavements; POLYCARBONATES; Sand; THIN FILMS
• ISSN: 1880-604X; 1880-604X
• DOI: 10.2208/jscejc.66.757

This paper presents a series of the authorsa trial of (i) estimating the constant volume shear strength of compacted geo-materials based on the concept proposed by Iseda and Mizuno in 1971, (ii) constitutive modelling of geo-materials compacted at the construction sites of large fill-dams, high embankments and highway pavements, (iii) evaluating the pseudo-cohesion proposed by Schlosser and Long in 1973 and (iv) examining the performance of reinforced earth tructuresbyfield testsonlarge-scaled model structures. The trialof estimatingthe strengthof compacted geo-materials is found to be reliable through the tests on the full-scalled trial embankments. Constitutive modelling of compacted geo-materials are successfully carried out for the materials used in two large dams, three high embankments and in highway pavements. It is confirmed through a series of triaxial tests on sand specimens reinforced by placing thin films of aluminum, electrodeposited copper and polycarbonate that the pseudo-cohesion proposed by Schlosser and Long in 1973 does exist exactly in a way they described in their paper. The large-scaled model structures constructed in the field are found to be useful in checking the performance of reinforced earth subjected to static and dynamic loading.