| 松花江松浦段岸坡土冻融直剪强度试验研究 |
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| 引用本文： | 韩雪,赵子龙,高子睿. 松花江松浦段岸坡土冻融直剪强度试验研究[J]. 山西建筑, 2014, 0(3): 75-77 |
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| 作者姓名： | 韩雪 赵子龙 高子睿 |
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| 作者单位： | 黑龙江科技大学,黑龙江哈尔滨150022 |
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| 基金项目： | 黑龙江省教育厅科学技术研究面上项目（项目编号：12511484） |
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| 摘 要： | 为了对冻融作用对松花江松浦段岸坡土抗剪强度影响特征进行研究,对该段岸坡土体进行了冻融和直剪试验,试验结果表明:试样土体经过单次冻融后粘聚力会大幅度下降,内摩擦角会大幅度上升,土体抗剪强度会大幅度上升,试样多次冻融后粘聚力大幅度下降,土体内摩擦角会大幅度上升,土体抗剪强度会经第一次冻融后有所增加,随着冻融循环次数的增加,土体抗剪强度大幅度下降,该结果可为松花江岸坡稳定性分析提供科学依据。
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| 关 键 词： | 坡土 冻融作用 抗剪强度 |
On the test of the strength of direct shear for the soil of bank slope in Songpu section of the Songhua river |
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| HAN Xue,ZHAO Zi-long,GAO Zi-rui. On the test of the strength of direct shear for the soil of bank slope in Songpu section of the Songhua river[J]. Shanxi Architecture, 2014, 0(3): 75-77 |
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| Authors: | HAN Xue ZHAO Zi-long GAO Zi-rui |
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| Affiliation: | ( Heilongjiang University of Science and Technology, Harbin 150022, China ) |
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| Abstract: | In order to study characteristics of soil strength freeze-thaw weakening in the Songhua river Songpu bank, freeze-thaw tests and direct shear tests were performed on that paragraph bank. The results showed that ： after thawing the sample cohesion will drop substantially, the internal friction angle will increase greatly and soil shear strength will increase significantly, the cohesion of sample after repeated freezing and thawing will significantly decline, internal friction angle of soil will greatly increase, the soil shear strength will increase after the first freezing and thawing, with the increase in the number of freeze-thaw cycles, the soil shear strength will significantly decline. The results can provide Songhua river slope stability analysis with a scientific basis. |
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| Keywords: | slope soil freeze-thaw effects shear strength |
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