Application of retaining structure with double-row piles in a hydraulic excavation
-
摘要: 某水闸基坑采用双排桩支护,通过支护结构的内力、位移分析计算对MIDAS/GTS程序和理正双排桩程序进行了对比,在计算模型基本相同的情况下计算结果有较好的一致性;采用理正双排桩程序对基坑支护断面的内力、位移及前后排桩不同土压力分担系数进行了比较分析,并对分担系数影响支护结构的内力、位移的原因进行了分析;最后对支护结构的位移进行了严密的监测,对双排桩的位移特性有了初步了解,对双排桩支护设计有较好的参考价值。Abstract: The retaining structure with double-row piles is used in an excavation of sluice. The internal force and displacement of the retaining structure with double-row piles are compared with those of MIDAS/GTS and double-row pile program of Lizheng. In the case of the same computational model, the calculated results are in good agreement. The sectional drawings of the retaining structure with double-row piles are analyzed from the internal force, displacement and different sharing ratios of lateral earth pressures on front-and rear-row piles. Finally, it provides certain reference value in designing the retaining structure with double-row piles. The displacement characteristics of double-row piles are preliminarily understood, by monitoring the displacement of the retaining structure with double-row piles.
-
Keywords:
- double-row pile /
- excavation retaining structure /
- monitoring
-
[1] 杨明辉, 汪罗成, 赵明华. 考虑土拱效应的双排抗滑桩桩侧土压力计算[J]. 公路交通科技, 2011, 28(10): 12–17. (YANG Ming-hui, WANG Luo-cheng, ZHAO Ming-hua. Calculation of soil pressure against double-row anti-slide piles considering soil arching effect[J]. Journal of Highway and Transportation Research and Development, 2011, 28(10): 12–17. (in Chinese)) [2] 黄 凭, 莫海鸿, 陈俊生. 双排护支护结构挠曲理论分析[J]. 岩石力学与工程学报, 2009, 28(增刊2):3870-3875 (HUANG Ping, MO Haihong, CHEN Junsheng. Theoretical ayalysis of double row piles retaining structure deflection[J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(S2): 3870–3875. (in Chinese)) [3] 陈学秉. 双排护支护结构在软土基坑工程中的应用[J]. 福建建筑, 2012(1): 81–83. (Chen Xue-bing. Application of retaining struture with double-row pile in soft ground excavation engineering[J]. Fujian Architecture & Construction, 2012(1): 81–83. (in Chinese)) [4] 何颐华, 杨 斌, 金宝森, 等. 双排护坡桩试验与计算的研究[J]. 建筑结构学报, 1996, 17(2):58-66. (HE Yi-hua, YANG Bin, JIN Bao-sen, et a1. A study ofthe test and calculation ofdouble-rOW fenderpiles[J]. Journal of Building Structures,1996,17(2):58-66. (in Chinese)) [5] GJB 02—98 广州地区建筑基坑支护技术规定[S]. 1998. (GJB 02—98 Technical specfucation for retaining and protection of building foundation exacacation in guangzhou area[S]. 1998. (in Chinese))
计量
- 文章访问数: 972
- HTML全文浏览量: 0
- PDF下载量: 801