Experimental Study on Reinforcement Properties of Tension-Resistant Reinforced Soil Retaining Wall

The tensioned reinforced soil retaining wall, a novel retaining structure, utilizes either anchors or geosynthetic materials as reinforcements that contribute to load-bearing and friction within the structure. This study aims to explore the tension distribution and strain patterns in the reinforceme...

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Bibliographic Details
Published in:	Buildings (Basel) Vol. 14; no. 9; p. 2951
Main Authors:	Wang, Yantao, Yang, Guangqing, Wang, Lei, Li, Xujia, Jiao, Guomu
Format:	Journal Article
Language:	English
Published:	Basel MDPI AG 01-09-2024
Subjects:	Cohesion Comparative analysis Deformation Deformation analysis Design optimization Friction Geogrids Geosynthetics Geotechnical fabrics geotextile strips High density polyethylenes Interfaces Interfacial strength Internal friction Load bearing elements Mechanical properties mechanical properties of reinforcements Polyesters Polyethylene Pull out tests Reinforced soils Reinforcement Retaining walls Shear tests Soil analysis Soil mechanics Soil properties Soil resistance Soil strength Soil stresses Soil structure Soils Tensile strength tensioned reinforced soil retaining walls United Arab Emirates Abu Dhabi United Arab Emirates
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Summary:	The tensioned reinforced soil retaining wall, a novel retaining structure, utilizes either anchors or geosynthetic materials as reinforcements that contribute to load-bearing and friction within the structure. This study aims to explore the tension distribution and strain patterns in the reinforcements, and their influence on the reinforced soil retaining walls. To this end, tensile, direct shear, and pullout tests were conducted on GeoStrap@5-50 geotextile strips and TGDG130HDPE geogrids to evaluate the tensile strength and interface strength between the reinforcement and the soil. The characteristics of the reinforcement–soil interface and the deformation behavior under stress were examined, with a comparative analysis of the technical merits of the two types of reinforcements. The results indicate that both the geotextile strips and geogrids enhanced the strength of the reinforced soil, primarily by increasing cohesion. The GeoStrap@5-50 geotextile strips exhibited superior tensile strength compared to the TGDG130HDPE geogrids; the reinforcement with the geotextile and geogrids both enhanced the cohesion of the standard sand, albeit with a slight decrease in the internal friction angle, by 4.6% and 3.1%, respectively, offering enhanced mechanical properties and economic value in reinforced soil retaining wall applications.
ISSN:	2075-5309 2075-5309
DOI:	10.3390/buildings14092951