Aiming at the consolidation problem of composite ground with granular columns composite foundation, the influences of temperature effect and variable load of composite foundation are considered, the consolidation calculation model of composite foundation is established, and the analytical solution of composite foundation under temperature effect, variable load and consolidation deformation. The correctness of the solution is verified by comparing the degradation calculation results with the existing analytical solution calculation results. The curve of consolidation degree of composite ground with granular columns under the influence of different factors is drawn by example analysis. The results show that with the increase of temperature, the consolidation rate of the composite foundation is accelerated, but the influence of temperature on the foundation soil becomes smaller and smaller. As the temperature increases, the greater the maximum reached at the end of the constant velocity loading stage, the faster the rate of excess pore pressure dissipation. The longer the loading time, the greater the influence of temperature on the excess pore pressure.

Zhang Yuguo, Du Xiaoyu, Yang Chang, Qin Peisen, Wang Ruixue. Consolidation analysis of composite ground with granular columns considering temperature effect and variable load. Academic Journal of Architecture and Geotechnical Engineering (2023) Vol. 5, Issue 8: 56-63. https://doi.org/10.25236/AJAGE.2023.050808.

[1] BARRON R A. Consolidation of fine grained soils by drain wells[J]. Trans ASCE, 1948, 113: 718-742.

[2] Xie Kanghe. Present state and development of the study on the consolidation theory of the composite foundation [J]. Foundation Treatmen, 1993, 4(3):1-14.

[3] TANG X W. A study for consolidation of ground with vertical drain system [D]. Japan: Saga University, 1998.

[4] Xie Kanghe and Pan Qiuyuan. One dimensional consolidation theory of layered foundation under timedependent loading [J]. Chinese Journal of Geotechnical Engineering, 1995, 17(5): 80-85. 

[5] P. Kim, T.-C. Kim, Y. G. Kim, H. B. Myong, K. S. Jon and S. H. Jon, “Nonlinear consolidation analysis of soft soil with vertical drains considering well resistance and smear effect under cyclic loadings,” Geotextiles and Geomembranes, vol. 49, no. 5, pp. 1440–1446, 2021.

[6] Wang Ruichun, Xie Kanghe and Guan Shanhai. Analytical solution for consolidation of composite ground with granular columns under time-dependent loading. Journal of Zhejiang University (Engineering Science), 2002, 36(1): 12-16.

[7] Zhang Yuguo, Hai Ran and Xie Kanghe. Consolidation of composite ground with granular columns under time-dependent loading [J]. Chinese Journal of Geotechnical Engineering, 2009, 31(3): 939-945.

[8] Chen Yu, Li Chuanxun and Feng Cuixia.Analytical solution for one-dimensional consolidation of soft soils under a partially permeable boundary condition and a time-dependent loading considering the threshold hydraulic gradient[J]. Rock and Soil Mechanics, 2021, 42(11): 3008-3016+3040.

[9] Li Yucheng. Study on consolidation of gravel pile composite foundation considering nonlinearity of soil under variable load conditions [J]. Henan Science, 2018, 36(2): 204-209.

[10] Wu Ruiqian. Analytical study on one-dimensional thermal consolidation theory of saturated soil. [D]. Hangzhou: Zhejiang University, 2008.

[11] Wang Yuan, Shi Bin, Gao Lei, et al. Laboratory tests for temperature effects of clayey soil permeability. Journal of Engineering Geology, 2010, 18(3): 351-356.

[12] Deng Yuebao, Wang Tianyuan and Kong Gangqiang. Consolidation theory for saturated ground considering temperature effects. Chinese Journal of Geotechnical Engineering, 2019, 41(10): 1827-1835.

[13] Lu Mengmeng. Analytical study on consolidation theory of composite ground under complicated conditions. [D]. Hangzhou: Zhejiang University, 2009.

[14] Zhao Minghua, Liu Dunping and Zhang Ling. Analytical solution for consolidation of composite ground with granular columns accounting for consolidation deformation of pile. Rock and Soil Mechanics, 2010, 31(2): 483-488.