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Large scale shaking table model test and analysis on seismic response of utility tunnel in non-homogeneous soil

Earthquake Engineering and Engineering Vibration 2021年第2期20卷 505-515页

作者： Cho Mya Darli Tang Aiping Huang Delong Zhang Jiqiang School of Civil Engineering Harbin Institute of TechnologyHarbin 150090China

Underground utility tunnels are the most fundamental and reliable lifeline network in urban cities,and are widely constructed throughout the *** urban areas,most utility tunnels usually encounter the non-homogeneity of subsoil condition due to various construction *** have shown that the damage mechanism of shallow underground structures mainly depends on the inhomogeneity of the subsoil *** would become a considerable factor for the stability of the underground utility tunnel ***,this type of research still needs to establish the vulnerable seismic *** this study,a series of shaking table tests were conducted on non-homogenous soils to investigate the performance of seismic interaction between utility tunnels,surrounding soils and interior *** dynamic responses measured from the test account for the boundary condition of non-homogeneous soils,the internal forces,displacement of tunnel joints,the dynamic characteristics on interior pipelines and the reasonable spring stiffness with damping in the seismically isolated gas pipeline model inside the *** vulnerability of underground utility tunnel in non-homogeneous soil zone and the mechanism of the stability of interior facilities are the main topics discussed in this paper.

关键词： utility tunnel non-homogeneous soil shaking table

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Solution to 1-D consolidation of non-homogeneous soft clay

引用

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2005年第B8期6卷 29-34页

作者：谢康和温介邦夏建中 Institute of Geotechnical Engineering Zhejiang University Department of Civil Engineering Zhejiang University of Science and Technology

In this work, semi-analytical methods were used to solve the problem of 1-D consolidation of non-homogeneous soft clay with spatially varying coefficients of permeability and compressibility. The semi-analytical solution was programmed and then verified by comparison with the obtained analytical solution of a special case. Based on the results of some computations and comparisons with the 1-D homogeneous consolidation (by Terzaghi) and the 1-D non-linear consolidation theory (by Davis et al.) of soft clay, some diagrams were prepared and the relevant consolidation behavior of non-homogeneous soils is discussed. It was shown that the result obtained differs greatly from Terzaghi’s theory and that of the non-linear consolidation theory when the coefficients of permeability and compressibility vary greatly.

关键词： non-homogeneous soil Time-dependent loading One-dimensional consolidation Layered system Semi-analytical solution

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