草本植物根系网固土原理的力学试验探究
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

江西交通厅重点科技项目(9904号)“香根草等高植物篱枝木与边坡防护”


An Experimental Study on Herb Plant Root System for Strength Principle of Soil-fixation
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    通过试验测定了生物软措施草本植物根系的最大拉力及最大拉力作用下根系断裂面直径,计算植物根系最大抗拉强度,结果表明香根草根系平均抗拉强度85mPa>假俭草27.3m Pa>白三叶24.6mPa>莎草24.5mPa>宜安草19.7mPa>马尼拉草17.5mPa>狗牙根13.4mPa。土壤剪切力试验表明香根草根系+沙土处理>沙土对照,香根草根系+黏土>黏土对照。探讨了草本植物根系网的固土性能,提出根系最大抗拉强度代表根系材料的受力潜能,可作为评判根系网的固土刚性的一个有效指标,为利用生物软措施代替或部分代替工程措施的作用,固土护坡防止土壤侵蚀及滑坡崩岗的灾害治理提供了力学理论依据

    Abstract:

    An experiment is conducted for testing the greatest strength of herb root system meanwhile measuring the root diameter under the condition of the greatest tensile strength. It provids where root was tore out and the potential root tensile strength is caculated. The result was revealed that the root average tensile strength vetiver grass of 85 mPa common cetipede grass of 27.3 mPa white clover of 24.6 mPa Juncelles serotinus of 24.5 mPa paspalum dilatatum poir of 19.7 mPa Bahio grass of 19.2 mPa manila grass of 17.5 mPa Bermuda grass of 13.4 mPa. The shear strength test shows that the soil plus vetiver grass root made the shear strength increased, compared to the CK in sandy or clay soil. The feature of holding up soil of herb root network is discussed and the potential capacity of holding up soil ie. the tensile strength of root network is put forword as one of the most important factor. It justifies the basic mechanics theories substituding soft bioengineering approach for the hard engineering approach in completely or partially to hold up soil and slope and resistant against soil erosion and control the landslide and mud rock flow etc.

    参考文献
    相似文献
    引证文献
引用本文

程洪,张新全.草本植物根系网固土原理的力学试验探究[J].水土保持通报,2002,(5):20-23

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2002-05-10
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2014-11-28
  • 出版日期: