软土地基平板载荷试验稳定标准的研究

软土地基平板载荷试验稳定标准的研究 English Version

基金项目: 现代建筑设计集团科研项目（15-1类-0016-基; 15-1类-0024-基）

详细信息

Shanghai Shenyuan Geotechnical Co., Ltd. (Shanghai Underground Space Engineering Design &Research Institute), Shanghai 200011, China

摘要: 从工程实践的角度,对软土地基平板载荷试验的稳定标准问题进行了研究,对比分析了不同尺寸荷载板慢速法、准慢速法、快速法载荷试验对承载力特征值和极限值判定的差异,分析了《工程地质手册》中外推法公式对软土地基载荷试验的适用性,改进了《工程地质手册》中外推法公式,提出用外推法及拟合法来综合描述慢速法与快速法的相互关系。
- 软土地基 /
- 载荷试验 /
- 承载力判定 /
- 稳定标准 /
- 外推法公式
Abstract: The stability standards for plate load tests on soft foundation are studied based on the engineering practice. The differences of determing the characteristic values of bearing capacity and the ultimate values of bearing capacity among the slow method, the quasi-slow method and the quick method under different loading plates are analyzed. Through the analysis, the applicability of the extrapolation formula to the plate load tests on soft foundation is investigated. The extrapolation formula is improved. The extrapolation formula and the fitting method are proposed to describe the interrelation between the slow method and the quick method.
- soft foundation /
- plate load test /
- determination of bearing capacity /
- stability standard /
- extrapolation formula

[1]	周镜. 岩土工程中的几个问题[J]. 岩土工程学报, 1999, 21(1): 1-8. (ZHOU Jing. Some cases in geotechnical engineering[J]. Chinese Journal of Geotechnical Engineering, 2010, 21(1): 1-8. (in Chinese))
[2]	张文龙, 张辉, 陈国栋, 等. 内蒙古粉细砂地基平板载荷试验尺寸效应研究[J]. 岩土工程学报, 2010(增刊2): 492-495. (ZHANG Wen-long, ZHANG Hui, CHENGuo-dong, et al. Plate loading test of fine silty sand ground in Inner Mongolia[J]. Chinese Journal of Geotechnical Engineering, 2010(S2): 492-495. (in Chinese))
[3]	毛水木, 周增明, 石苗灿. 复合地基载荷试验规范存在的问题及建议[J]. 岩土工程界, 2004, 8(6): 27-28. (MAO Shui-mu, ZHOU Zeng-ming,SHI Miao-can.The problems and suggestions existing in the composite foundation load test specification[J]. Geotechnical Engineering World, 2004, 8(6): 27-28. (in Chinese))
[4]	刘陕南, 黄绍明, 梁志荣, 等. 上海软土天然地基极限承载力的试验研究与分析[J]. 建筑结构, 2009, 39(增刊): 746-749. (LIU Shan-nan, HUANG Shao-ming, LIANG Zhi-rong, et al. Loading test and aanalysis of the ultimate bearing capacity of foundation in Shanghai Area[J]. Building Structure, 2009, 39(S0): 746-749. (in Chinese))