1. Zhejiang College of Water Engineering Construction Supervision Company LTD, Hangzhou 310051, China; 2. Zhejiang Water Conservancy and Hydropower College, Hangzhou 310018, China, China; 3. MOE Key Laboratory of Soft Soils and Geoenviromental Engineering, Zhejiang University, Hangzhou 310058; 4. College of Transportation Science & Engineering, Nanjing University of Technology, Nanjing 210009, China
Abstract:Based on the static load tests on pretensioned high-strength concrete piles (PHC pipe) and precast square piles in the same test field of soft soil area of Wenzhou flood dike project in Zhejiang Province, the load-settlement curves, shaft load distribution curves and behaviors of skin resistance of these two types of piles are compared. The experimental results show that, for the PHC pipes and precast square piles with the same lateral area and pile length in soft areas, the behaviors of skin resistance and base resistance are different, although their axial forces, lateral friction forces and base resistances appear closely similar.
对比试验研究. 软土地区防洪堤工程中预制方桩和PHC管桩的[J]. 岩土工程学报, 2013, 35(zk2): 986-989.
CHEN Yan-ming, MA Yan-yan, XU Yan-ping, CHEN Wei-yun, XIA Tang-dai. Comparative analysis of precast square piles and PHC piles for flood protection work in soft soil areas. Chinese J. Geot. Eng., 2013, 35(zk2): 986-989.
[1] 刘芙蓉, 贾 燎, 李 枨. 预应力混凝土空心方桩焊接接头抗弯试验研究[J]. 武汉理工大学学报, 2008, 30(5): 105-108. (LIU Fu-rong, JIA Liao, LI Cheng. The test study on welding joint flexural bearing capacity of prestressed concrete hollow square pile[J]. Journal of Wuhan University of technology, 2008, 30(5): 105-108. (in Chinese)) [2] 施 峰. PHC管桩荷载传递的试验研究 [J]. 岩土工程学报, 2004, 26(1): 95-99. (SHI Feng. Experimental research on load transfer mechanism of pretensioned high strength spun concrete piles[J]. Chinese Journal of Geotechnical Engineering, 2004, 26(1): 95-99. (in Chinese)) [3] 邓友生, 孙宝俊, 邬忠强. 预应力混凝土管桩的应用研究及发展前景[J]. 建筑技术, 2003, 34(4): 263-266. (DENG You-sheng, SUN Bao-jun, WU Zhong-qiang. Research on the use of prestressed concrete tubular pile and prospects thereof [J]. Architecture Technology, 2003, 34(4): 263-266. (in Chinese)) [4] 律文田, 王永和, 冷伍明. PHC 管桩荷载传递的试验研究和数值分析 [J]. 岩土力学, 2006, 27(3): 466-500. (LÜ Wen-tian, WANG Yong-he, et al. Testing and numerical analysis of load transfer mechanism of PHC pile[J]. Rock and Soil Mechanics, 2006, 27(3): 466-500. (in Chinese)) [5] 蔡 健, 周万清, 林奕禧, 等. 深厚软土超长预应力高强混凝土管桩轴向受力性状的试验研究[J]. 土木工程学报, 2006, 39(10): 466-500. (CAI Jian, ZHOU Wan-qing, LIN Yi-xi, et al. Experimental study on the axial compressive behavior of super-long PHC pipe piles in deep soft soils[J]. China Civil Engineering Journal, 2006, 39(10): 466-500. (in Chinese))