Abstract The exposure of rebar in diaphragm wall was discovered after excavation in more than 20 subway stations, along the lines 1 to 4 in Suzhou, China. Such phenomena were investigated from strata formation, hydrogeological condition, construction techniques, adjacent surcharge load and other aspects. Based on field investigation, in situ testing and numerical simulation, the disturbance of trenching operations and the main factors that affect the stability of the diaphragm wall during the trenching process are analyzed comprehensively. The results show that the deformation behavior and stability of slurry trench walls are mainly influenced by strata characteristics, adjacent surcharge loading, formation of bentonite filter cake on trench walls, pressure of a confined aquifer, height of slurry filling and slurry density. The underground water pressure in the confined aquifer of silty soil layers is considered as one of the main controlling factors, which is verified by the subsequently dewatering and trenching tests. During the construction process, the deformation and stability of the trench walls can be improved by adjusting and controlling the crucial controlling factors. Further, relevant remedial measures as well as the preventive methods during the process of constructing diaphragm walls and subsequent soil excavation are addressed.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Investigation of Rebar Exposure Issues of Diaphragm Wall and Influencing Factors Analysis


    Beteiligte:
    Tong, Liyuan (Autor:in) / Guo, Qiwen (Autor:in) / Che, Hongbo (Autor:in) / Zhang, Mingfei (Autor:in) / Pan, Huangsong (Autor:in) / Li, Hongjiang (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2019-02-07


    Format / Umfang :

    15 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Investigation of Rebar Exposure Issues of Diaphragm Wall and Influencing Factors Analysis

    Tong, Liyuan / Guo, Qiwen / Che, Hongbo et al. | Online Contents | 2019


    SOME FACTORS INFLUENCING THE PERFORMANCE OF DIAPHRAGM INDICATORS OF EXPLOSION PRESSURES

    Fiock, Ernest F. / Caldwell, Frank R. | SAE Technical Papers | 1941


    ROBOT FOR TYING REBAR ON A REBAR GRID

    GEORGE EOHAN | Europäisches Patentamt | 2022

    Freier Zugriff

    DIAPHRAGM WALL EXCAVATOR

    PARK HO SUNG / JANG TAE IL / KIM DONG GIL et al. | Europäisches Patentamt | 2016

    Freier Zugriff

    Rebar transfer device

    SONG SUBOK | Europäisches Patentamt | 2024

    Freier Zugriff