| 基于土拱效应的筒仓土压力研究 |
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| 引用本文： | 蒋波,应宏伟,谢康和.基于土拱效应的筒仓土压力研究[J].科技通报,2005,21(5):624-627,632. |
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| 作者姓名： | 蒋波 应宏伟 谢康和 |
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| 作者单位： | 1. 浙江城建设计研究院,岩土分院,杭州,310006
2. 浙江大学,土木工程系,杭州,310027 |
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| 摘 要： | 对筒仓小主应力拱形状进行了理论分析，发现墙土摩擦角部分发挥时的小主应力拱形状较充分发挥时平缓。根据土拱形状的理论分析计算平均竖向应力，由此得到了对应不同内摩擦角和墙土摩擦角的侧土压力系数，以及筒仓侧土压力的理论公式。
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| 关 键 词： | 工程力学 土拱 筒仓 土压力 小主应力轨迹 |
| 文章编号： | 1001-7119（2005）05-0624-04 |
| 收稿时间： | 2004-02-24 |
| 修稿时间： | 2004-02-24 |
Study on Earth Pressure on Silos Based on Soil Arching |
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| JIANG Bo,YING Hong-wei,XIE Kang-he.Study on Earth Pressure on Silos Based on Soil Arching[J].Bulletin of Science and Technology,2005,21(5):624-627,632. |
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| Authors: | JIANG Bo YING Hong-wei XIE Kang-he |
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| Abstract: | The shape of minor principal stress arch is theoretically analyzed. It is found that the shape of arch is more flat when wall friction is partially developed than fully developed. Average vertical earth pressures are obtained according to the shape of minor principal stress arch, and consequently the coefficient of earth pressures versus the angle of inter- nal friction and the angle of wall friction and the formula of earth pressures on silos are obtained. |
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| Keywords: | engineering mechanics soil arching silos earth pressure trajectory of minor principal stress |
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