| 长春硬塑状态老黏性土地基承载力 |
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| 引用本文： | 孙广利,李广杰,周景宏,于光源.长春硬塑状态老黏性土地基承载力[J].吉林大学学报(地球科学版),2014,44(2):591-595. |
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| 作者姓名： | 孙广利 李广杰 周景宏 于光源 |
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| 作者单位： | 1.吉林大学建设工程学院，长春130026;
2.吉林建筑大学测绘与勘查工程学院，长春130118 |
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| 基金项目： | 国家自然科学基金项目(41172293) |
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| 摘 要： | 为提供长春硬塑状态老黏性土可靠的地基承载力依据，探讨适宜的确定地基承载力的方法，采用载荷试验、静力触探试验原位测试和室内土工试验等方法对长春老黏性土进行了测试研究，获取了地基承载力特征值（306~425 kPa）、静力触探锥尖阻力（1.9~3.3 MPa）、天然孔隙比(0.63~0.72)和液性指数(0.02~0.25)等试验数据。通过对试验数据的统计分析，得出地基承载力特征值与静力触探锥尖阻力线性相关，并与天然孔隙比和液性指数线性相关的结论。据此，提出了根据静力触探锥尖阻力计算长春老黏性土地基承载力特征值的经验公式，总结出根据室内土工试验指标确定长春老黏性土地基承载力特征值的数据表。
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| 关 键 词： | 硬塑状态老黏性土 地基承载力 载荷试验 静力触探试验 土工试验 |
| 收稿时间： | 2013-08-06 |
Foundation Bearing Capacity of Changchun Hard Plastic Old Clay |
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| Sun Guangli,Li Guangjie,Zhou Jinghong,Yu Guangyuan.Foundation Bearing Capacity of Changchun Hard Plastic Old Clay[J].Journal of Jilin Unviersity:Earth Science Edition,2014,44(2):591-595. |
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| Authors: | Sun Guangli Li Guangjie Zhou Jinghong Yu Guangyuan |
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| Institution: | 1.College of Construction Engineering, Jilin University, Changchun130026, China;
2.School of Geometrics and Prospecting Engineering，Jilin Jianzhu University，Changchun130118, China |
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| Abstract: | In order to provide reliable basis for foundation bearing capacity of Changchun hard plastic old clay and to discuss appropriate measures for determining the characteristic value of subsoil bearing capacity, laboratory soil test and in-situ testing methods including loading test and cone penetration test(CPT) are carried out, and the characteristics value of subsoil bearing capacity (306-425 kPa), the value of CPT(1.9-3.3 MPa), natural void ratio (0.63-0.72) and liquidity index (0.02-0.25) are collected. Based on the test data, there can be found a linear correlation between characteristic value of subsoil bearing capacity and the value of CPT, between characteristic value of subsoil bearing capacity and natural void ratio and between characteristic value of subsoil bearing capacity and liquidity index. Therefore, an empirical formula is presented, which the characteristic value of subsoil bearing capacity can be calculated according to the value of CPT. And then a calculation table about the characteristic value of subsoil bearing capacity of Changchun old clay is summed up according to the laboratory soil test indexes. |
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| Keywords: | hard plastic old clay foundation bearing capacity loading test cone penetration test(CPT) soil test |
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