Applicability of m-method for horizontal bearing capacity of single pile in Shanghai area
-
摘要: 针对《建筑桩基技术规范》推荐的m法,通过上海地区大量单桩水平试桩资料验证了m法在上海软土地区的适用性,通过试验资料对m值进行了反算,并与上海《地基基础设计规范》以及《港口工程桩基规范》推荐的m值进行比较；分别选择灌注桩和PHC管桩不同桩型的试桩资料,通过m法与实测弯矩以及其他计算方法比较,结果表明采用m法计算确定单桩水平承载力对上海软土地区建筑桩基是适用的,计算桩身弯矩曲线与实测曲线比较吻合,m值建议可按上海《地基基础设计规范》中规定范围的上限取用。Abstract: As for the m-method recommended by China's technical code for building pile foundation, the applicability of the method in Shanghai soft soil area is validated by means of test data of single pile. The mvalue is back-calculated based on the test data, and it is compared with that suggested by Shanghai's foundation design code and China's code for port foundation of harbour engineering. The data of cast-in-place piles and PHC piles are selected to compare the values by m-method with the measured bending moments as well as the results of other methods. The results show that the m-method is applicable to determine the horizontal bearing capacity of single pile in Shanghai soft soil area. The curve of the calculated bending moment aggress with the measured one. The m-value is recommended according to upper limit stipulated by the Shanghai's foundation design code.
-
[1] 蔡忠祥, 刘陕南, 侯胜男. 基于混凝土损伤模型的单桩水平承载性状数值分析[J]. 工业建筑. 2012, 42(增刊): 303-307. (CAI Zhong-xiang, LIU Shan-nan, HOU Sheng-nan, et al. Numerical analysis of lateral response of the single pile based on the concrete damaged plasticity model [J]. Industrial Construction, 2012, 42(S0): 303-307. (in Chinese)) [2] 黄河洛口桩基试验研究组,桩基在水平荷载作用下的破坏特征[J]. 人民黄河, 1985(4). (Test pile group of Yellow River Luokou, Failure characteristics of Pile foundation under the action of horizontal loadp[J]. Yellow River, 1985(4). (in Chinese)) [3] 侯胜男, 刘陕南, 孙洋波, 等. 预应力管桩水平承载力现场试验与计算研究[J]. 土木建筑工程信息技术, 2012, 4(4): 28-31. (HOU Sheng-nan, LIU Shan-nan, SUN Yang-bo, et al. Lateral capacity of phc pile on site test and calculation research[J]. Journal of Information Technology in Civil Engineering and Architecture, 2012, 4(4): 28-31. (in Chinese)) [4] 上海现代建筑设计(集团)有限公司. 上海软土地区建筑桩基水平承载力的确定方法研究报告[R]. 上海: 上海现代建筑设计(集团)有限公司. 2012. (Shanghai Xian Dai Architectural Design(Group)Co., Ltd. Research on the lateral bearing capacity of single pile of building pile foundation in Shanghai soft soil[R]. Shanghai: Shanghai Xian Dai Architectural Design(Group)Co., Ltd., 2012. (in Chinese))
计量
- 文章访问数: 423
- HTML全文浏览量: 7
- PDF下载量: 620
下载:
