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Quantitative methods for predicting underground construction waste considering reuse and recycling

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Abstract

The construction industry has been greatly developed in the past few decades, especially in the extensive use of underground space. The increasing amount of waste (e.g., soil, sludge, and rock) generated in the underground construction constitutes an important part of construction and demolition waste (CDW), but the related problems are rarely addressed in an independent quantitative study. In order to facilitate recycling of underground construction waste (UCW), quantitative methods for predicting UCW are proposed based on mass conservation in this study. Through on-site investigation and literature review, the source characteristics of UCW and corresponding recycling potential are firstly analyzed. Secondly, the corresponding quantitative method is proposed for predicting each type of UCW according to the principle of mass conservation. Finally, the proposed quantitative methods are applied in two real underground infrastructure projects to verify the accuracy. The results show that the accuracy of quantitative methods for predicting shield sludge and engineering soil is 82.03–95.79% and 94.49% respectively. The quantitative methods for predicting the amount of UCW proposed in this study is effective. In both cases, underground construction produced a large amount of construction waste with great recycling potential. UCW can theoretically reach 100% recycling, and full reuse and recycling of UCW will bring huge benefits and be conducive to the sustainable development of the construction industry.

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Data availability

The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.

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Funding

This work was supported by the National Key Research and Development Program, “Precise management control in construction and demolition waste and engineering demonstration” [grant number 2018YFC0706000].

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Rui Chen designed the paper framework and wrote the manuscript. Lanxin Li maintained research data and wrote the manuscript. Kai Yang conducted a research and investigation process. Fumin Ren contributed to funding acquisition. Chenggang **, Yang Lin, and Hai Zheng provided technical and editorial assistance.

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Correspondence to Rui Chen or Fumin Ren.

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The authors declare no competing interests.

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Chen, R., Li, L., Yang, K. et al. Quantitative methods for predicting underground construction waste considering reuse and recycling. Environ Sci Pollut Res 29, 3394–3405 (2022). https://doi.org/10.1007/s11356-021-15858-3

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  • DOI: https://doi.org/10.1007/s11356-021-15858-3

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