黄茅根系抗拔承载力试验研究
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摘要
为了探索黄茅草根系与土壤的接触特性,并分析其根系各因素对抗拔力的影响,文章通过对不同龄期的黄茅草进行抗拔力研究实验,发现草的根茎发达程度,即固土高度,固土土重,根系重量都很大程度上影响抗拔力,并总结出以上因素与抗拔力的数值模拟,发现随着根系的发展,其固土高度、固土土重、根系重量都增大,并均与抗拔力呈正比关系。
In order to explore the contact characteristics between the root system and the soil and analyze the influence of various factors of the root system on the pullout force, the experiment on the pullout resistance of the grass of different ages was carried out in this paper, and it was found that the rhizome of the grass was developed, that is, the height of soil fixation, the weight of soil consolidation soil and root system affect the pullout resistance to a great extent, and the numerical simulation of the above factors and pullout resistance is summarized. It is found that with the development of root system, the height of soil fixation, the weight of soil fixation soil and the weight of root system all increase, and all of them are related to the pullout resistance.
In order to explore the contact characteristics between the root system and the soil and analyze the influence of various factors of the root system on the pullout force, the experiment on the pullout resistance of the grass of different ages was carried out in this paper, and it was found that the rhizome of the grass was developed, that is, the height of soil fixation, the weight of soil consolidation soil and root system affect the pullout resistance to a great extent, and the numerical simulation of the above factors and pullout resistance is summarized. It is found that with the development of root system, the height of soil fixation, the weight of soil fixation soil and the weight of root system all increase, and all of them are related to the pullout resistance.
引文
[1]程洪,颜传盛,李建庆,等.草本植物根系网的固土机制模式与力学试验研究[J].水土保持研究,2006,13(1):62-65.
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[3]李长暄,陈丽华,周娟,等.蒙古栎根系单根抗拉力学特性[J].水土保持通报,2014,34(4):232-235.
[4]孙丽文,史常青,赵廷宁,等.北川县4个树种根系抗拉特性研究[J].四川农业大学学报,2014,32(1):34-40,58.
[5]张云伟,惠尚,卜晓磊,等.3种散生竹的单根抗拉力学特性[J].林业科学,2013,49(7):183-187.
[2]朱海丽,毛小青,倪三川,等.植被护坡研究进展与展望[J].中国水土保持,2007(4):26-29.
[3]李长暄,陈丽华,周娟,等.蒙古栎根系单根抗拉力学特性[J].水土保持通报,2014,34(4):232-235.
[4]孙丽文,史常青,赵廷宁,等.北川县4个树种根系抗拉特性研究[J].四川农业大学学报,2014,32(1):34-40,58.
[5]张云伟,惠尚,卜晓磊,等.3种散生竹的单根抗拉力学特性[J].林业科学,2013,49(7):183-187.