[1]边晓亚,白俊龙,张 军.冻融对黄土边坡稳定性的影响[J].武汉工程大学学报,2018,40(04):425-429.[doi:10. 3969/j. issn. 1674?2869. 2018. 04. 015]
BIAN Xiaoya,BAI Junlong,ZHANG Jun.Influence of Freeze-Thaw on Stability of Loess Slope[J].Journal of Wuhan Institute of Technology,2018,40(04):425-429.[doi:10. 3969/j. issn. 1674?2869. 2018. 04. 015]
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]
- 卷:
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40
- 期数:
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2018年04期
- 页码:
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425-429
- 栏目:
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资源与土木工程
- 出版日期:
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2018-08-23
文章信息/Info
- Title:
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Influence of Freeze-Thaw on Stability of Loess Slope
- 文章编号:
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20180415
- 作者:
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边晓亚1; 2 ; 白俊龙2; 张 军1
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1. 黄土地区公路建设与养护技术交通行业重点实验室,山西 太原 030006;2. 武汉工程大学土木工程与建筑学院,湖北 武汉 430074
- Author(s):
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BIAN Xiaoya1; 2; BAI Junlong2; ZHANG Jun1
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1. Key Laboratory of Highway Construction and Maintenance Technology in Loess Region, Taiyuan 030006,China;2. School of Civil Engineering and Architecture,Wuhan Institute of Technology, Wuhan 430074, China
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- 关键词:
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黄土; 冻融; 随机场; 干容重; 边坡稳定性
- Keywords:
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loess; freeze-thaw; random field; dry bulk density; slope stability
- 分类号:
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TU445
- DOI:
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10. 3969/j. issn. 1674?2869. 2018. 04. 015
- 文献标志码:
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A
- 摘要:
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冻融对黄土边坡的稳定性影响较大。利用MATLAB软件生成图像研究冻融条件下土性参数随机场的变化情况,选取干容重为主要研究参数,并运用毕肖普法和牛顿迭代法计算安全系数,分析冻融条件下黄土边坡稳定性。结果表明,干容重对黄土边坡稳定性具有重要影响,冻融通过改变干容重大小来影响黄土边坡的稳定性;黄土干容重初始值较小时,冻融后干容重会增大,边坡安全系数增大边坡趋于稳定,黄土干容重初始值较大时,冻融后干容重会减小,边坡安全系数急剧减小边坡趋于不稳定;存在一个最优干容重即冻融后干容重大小不发生改变,此时黄土边坡稳定性受冻融的影响较小。
- Abstract:
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Freeze-thaw has great influence on the loess slope stability. The changes of soil property after freeze-thaw were studied with random field model by MATLAB software. Dry bulk density was selected as the main parameter. Bishop method and Newton iteration method were used to calculate safety factor of loess slope. The results indicated that the dry bulk density plays an important role on the loess slope stability. The freeze-thaw influenced the loess slope stability by changing the dry bulk density. At the smaller initial value of dry bulk density of loess, the safety factor of the loess slope increased to make the loess slopes more stable with the dry bulk density increasing after freeze-thaw, while at the larger initial value of dry bulk density of loess, the safety factor of the loess slope decreased to make the loess slopes unstable with dry bulk density decreasing after freeze-thaw. There is an optimum dry bulk density that will not change after freeze-thaw, having less effect on the loess slope stability.
参考文献/References:
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备注/Memo
- 备注/Memo:
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收稿日期:2017-12-04基金项目:国家自然科学基金(51708428);黄土地区公路建设与养护技术交通行业重点实验室开放基金(KLTLR-Y14-4);武汉工程大学科学研究基金(K201723)作者简介:边晓亚,博士,讲师。 E-mail:[email protected]引文格式:边晓亚,白俊龙,张军. 冻融对黄土边坡稳定性的影响[J]. 武汉工程大学学报,2018,40(4):425-429.
更新日期/Last Update:
2018-08-16