软土固结
研究方法一
建立了轴对称竖井地基固结简化为平面应变有限元分析中的砂墙地基固结的等效计算方法；突破传统固结理论中地基附加应力均匀分布的假设，建立了任意分布的地基附加应力条件下竖井地基径竖向同时固结的解析解。
研究方法二
辨析了真空预压法与堆载预压法加速软土地基固结的作用机理；探索了堆载预压真空预压以及真空联合堆载预压法竖井地基径竖向同时固结的等应变解答和等体积应变解答。
代表性论文
1.Lei, G. H., Xu, L. D., Zheng, Q., Ng, C. W. W. (2017). Role of equal-strain assumption in unit-cell theory for consolidation with vertical drains. Journal of Central South University, Vol. 24, No. 12, 2914-2923.
2.Lei, G. H., Fu, C. W. & Ng, C. W. W. (2016). Vertical-drain consolidation using stone columns: An analytical solution with an impeded drainage boundary under multi-ramp loading. Geotextiles and Geomembranes,Vol. 44, No. 1, 122-131.
3.Lei, G. H., Zheng, Q., Ng, C. W. W., Chiu, A. C. F. & Xu, B. (2015). An analytical solution for consolidation with vertical drains under multi-ramp loading. Géotechnique,Vol. 65, No. 7, 531-547.
4.Lei, G. H., Sun, H. S. & Ng, C. W. W. (2014). An approximate analytical solution for calculating ground surface settlements due to diaphragm walling. Computers and Geotechnics, Vol. 61, 108-115.
5.雷国辉，李赞，徐梨丹（2016），含砂垫层地基二维固结自由应变解，岩土工程学报，Vol. 38, No. 2, 193-201.
6.雷国辉，许波，张旭东（2013），堆载预压径竖向固结等体积应变解答，岩土工程学报，Vol. 35, No. 1, 76-84.
