Full-Scale Experimental Study on Prefabricated Greening Ecological Retaining Walls

Xinquan Wang, Xiao Li (), Cong Zhu, Hongguo Diao, Kangyu Wang, Tianyuan Huang, Jiewen Tu and Yichen Que
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Xinquan Wang: Deportment of Civil Engineering, Zhejiang University City College, Hangzhou 310015, China
Xiao Li: Deportment of Civil Engineering, Zhejiang University City College, Hangzhou 310015, China
Cong Zhu: Zhejiang Jiaogong Group Co., Ltd., Hangzhou 310000, China
Hongguo Diao: Deportment of Civil Engineering, Zhejiang University City College, Hangzhou 310015, China
Kangyu Wang: School of Civil Engineering, Zhejiang University of Technology, Hangzhou 310000, China
Tianyuan Huang: Zhejiang Jiaogong Group Co., Ltd., Hangzhou 310000, China
Jiewen Tu: Zhejiang Expressway Construction Management Co., Ltd., Hangzhou 310000, China
Yichen Que: Deportment of Civil Engineering, Zhejiang University City College, Hangzhou 310015, China

Sustainability, 2022, vol. 14, issue 19, 1-18

Abstract: Prefabricated walls are frequently utilized as retaining structures in different applications. A new type of prefabricated greening ecological retaining wall (PGERW) is proposed in this research. Full-scale tests and numerical simulations were conducted to investigate the stress characteristics of the PGERW. To this end, the load–stress relationship, load–displacement relationship, and crack development of the retaining wall columns were carefully evaluated. It was found that when the load acting on the 3 m high column reached the ultimate load-bearing capacity (about 150 kN), an “arc + 7”-shaped crack pattern emerged. A V-shaped crack composed of bolt–chamfer cracks formed when the load applied to a 2.5 m high column reached the ultimate load-bearing capacity (about 335 kN). The design of hollow thin-walled columns can effectively reduce the amount of concrete used and, as a consequence, reduce its carbon emissions, while meeting the design strength requirements of the retaining wall. The PGERW addresses the challenges of improving the extent of greening and drainage performance of traditional prefabricated retaining walls. It has excellent applicability to highway slope construction and therefore can be applied in several contexts.

Keywords: prefabricated; greening; retaining walls; columns; load–stress (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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