1. ZHAO Ming-hua, LIU Qi-ni, ZOU Xin-jun. Consolidation analysis of composite ground with cement fly-ash gravel piles[J]. Journal of Central South University: Science and Technology, 2007, 34(9): 2–5. (in Chinese)
2. POULOS H G, DAVIS E H. Pile foundation analysis and design[M]. New York: John Wiley & Sons Inc, 1980.
3. HAN Yun-shan, BAI Xiao-hong, LIANG Ren-wang. Cushion influence on bearing capacity of composite foundation with cement fly-ash gravel piles[J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(20): 3498–3503. (in Chinese)
4. SHI Jian-yong. Soil mechanics[M]. Beijing: China Communication Press, 2004.
5. ZHAO Ming-hua, YANG Ming-hui, ZOU Xin-jun. Vertical bearing capacity of pile based on load transfer model[J]. Journal of Central South University of Technology, 2005, 12(4): 488–493.