Compressibility behavior of conditioned sandy clay considering the physical degradation of foam: tunneling issue

• Autorzy: Selmi Mœz , Alassaf Yahya , Kacem Mariem , Jamei Mehrez

Identyfikatory

DOI

10.46873/2300-3960.1397

• Języki publikacji: EN

Abstrakty

EN

Surfactants in the form of liquid foam are commonly used for ensuring the fluidity of conditioned soil during shield tunneling in mining zone. The compressibility can be significantly affected, depending on the percentage of fine soil. Thus, this paper investigates the compressibility of foam-conditioned fine soil. Oedometric tests as a function of the percentage of foam have been performed. Foam's stability was analyzed, considering a laboratory soil made from 40% kaolinite and 60% of sand and mixed with a foaming agent based on an anionic surfactant. Experimental results showed that the foam stability was manifested through a reduction of the foam's volume followed by liquid drainage, under loading and due to the foam's physical degradation over time. The compressibility increases with the adding rate of the foam in the soil. Therefore, consolidation and foam's degradation over time are two factors that allow the recovery of the compressibility property of conditioned soil.

Słowa kluczowe

EN

conditioned soil; foam; degradation; compressibility; excavation; mining

PL

gleba kondycjonowana; piana; degradacja; ściśliwość; wykopy; górnictwo

• Wydawca: Elsevier ; Główny Instytut Górnictwa
• Czasopismo: Journal of Sustainable Mining
• Rocznik: 2023
• Tom: Vol. 22. iss. 4
• Strony: 316--331
• Opis fizyczny: Bibliogr. 39 poz.

Twórcy

autor

Selmi Mœz

• Université de Lyon, Centrale Lyon-ENISE, Laboratoire de Tribologie et Dynamique des Systèmes, Saint Etienne, France
• Tunis El Manar University, National Engineering School of Tunis, Civil Engineering Department, Tunisia

• https://orcid.org/0000-0002-0715-5043

autor

Alassaf Yahya

• Northern Border University, Civil Engineering Department, Engineering College, Arar, Saudi Arabia

• https://orcid.org/0000-0002-8974-3315

autor

Kacem Mariem

• Université de Lyon, Centrale Lyon-ENISE, Laboratoire de Tribologie et Dynamique des Systèmes, Saint Etienne, France
• Ecole Centrale de Pekin, Beihang University, Beijing, China

• https://orcid.org/0000-0002-3036-7351

autor

Jamei Mehrez

• Northern Border University, Civil Engineering Department, Engineering College, Arar, Saudi Arabia

• https://orcid.org/0000-0002-9430-3920

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).