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ANALYSING SOFT GROUND IMPROVEMENT CAUSED BY TREE ROOT SUCTION

机译：树木根吸引起的软土地基改善分析

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Bioengineering aspects of native vegetation are currently being evolved to improve soil stiffness, slope stabilisation, and erosion control. Vegetation contributes to weak soil stabilisation through reinforcement of the soil, dissipation of excess pore pressures, and increasing the shear strength by induced matric suction. This paper looks at the way that vegetation influences soil matric suction, shrinkage, and ground settlement. A theoretical model previously developed by the authors for the rate of tree root water uptake together with an associated numerical simulation is used in this study. A conical shape is considered to represent the geometry of the tree root zone. Based on this proposed model, the distribution of moisture and the matric suction profile adjacent to the tree are numerically analysed. Field measurements taken from previously published literature are compared with numerical predictions for further validation. The predicted results compared favourably with the measured results, justifying the assumptions upon which the model was developed. It is desirable to consider the influence zone of tree roots and the improved soil properties in modern geotechnical designs, benefiting from native vegetation.

机译：当前正在开发原生植被的生物工程学方面，以改善土壤硬度，稳定边坡和控制侵蚀。植被通过增强土壤，消散多余的孔隙压力以及通过诱导基质吸力来提高抗剪强度，从而导致土壤稳定性差。本文探讨了植被影响土壤基质吸力，收缩和地面沉降的方式。这项研究使用了作者先前为树根吸水率开发的理论模型以及相关的数值模拟。圆锥形被认为代表了树根区域的几何形状。基于该提出的模型，对与树木相邻的水分分布和基质吸力分布进行了数值分析。将以前发表的文献中的现场测量值与数值预测值进行比较，以进行进一步的验证。预测结果与测量结果相比具有优势，证明了模型开发所依据的假设是正确的。希望在现代岩土工程设计中考虑到树根的影响区和改良的土壤特性，这些都得益于天然植被。

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《GEO-DENVER 2007》|2007年|P.1-10|共10页
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B.Fatahi; B.Indraratna; H.Khabbaz;
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中图分类土力学、地基基础工程;
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专利

1. SOFT SOIL IMPROVEMENT INDUCED BY TREE ROOT SUCTION [J] . Behzad Fatahi, Buddhima Indraratna, Hadi Khabbaz Australian Geomechanics . 2007,第4期

机译：树木根吸引起的软土改良
2. Parametric studies on bioengineering effects of tree root-based suction on ground behaviour [J] . Behzad Fatahi, Hadi Khabbaz, Buddhima Indraratna Ecological engineering: The Journal of Ecotechnology . 2009,第10期

机译：基于树根的吸力对地面行为的生物工程效应的参数研究
3. Studies on Root-Breaking in Certain Crop Plants Caused by the Formation of IcicIe-Layer in the Ground and on Protection Methods against Them : 3. Formation of Ground-Cavity and Its Relation to the Plant Roots [J] . Iwao NIKKI 日本作物學會紀事 . 1955,第4期

机译：在地面上形成ICICIE层和对策的保护方法引起的特定作物植物的研究：3。地面腔形成及其与植物根部的关系
4. ANALYSING SOFT GROUND IMPROVEMENT CAUSED BY TREE ROOT SUCTION [C] . B.Fatahi, B.Indraratna, H.Khabbaz GEO-DENVER . 2007

机译：树根吸力造成的软接地改善分析
5. Settlement behavior of a sandy loam due to suction changes associated with simulated artificial tree roots. [D] . Areghan, Joseph Isimenmen. 2012

机译：沙壤土的沉降行为是由于与模拟的人造树根相关的吸力变化而引起的。
6. Biomass and morphology of fine roots in temperate broad-leaved forests differing in tree species diversity: is there evidence of below-ground overyielding? [O] . Catharina Meinen, Dietrich Hertel, Christoph Leuschner -1

机译：温带阔叶林细叶的生物量和形态其树种多样性不同：是否有地下过度增产的证据？
7. Figure 6: (A) Tree resulted the standard MP analysis of the 98-loci supermatrix of the Great Apes (Hominidae, Primates, Mammalia) constructed using the modified summary of Lehtonen et al. (2011) (see “Materials and Methods” for the details) and a posteriori rooted relatively Papio (length = 12,092, CI = 0.7877, RI = 0.5597); 34,022 characters are constant, and the number of the parsimony-informative characters is equal to 4,311. MP BS values are provided below branches. The only characters with non-ambiguous value of the outgroup (Papio) have been saved within concatenated alignment; (B) the average consensus tree of the score 0.00084 resulted the analysis of the Hennigian forest of the 5,507 trees derived from the binary representation of the 98-loci supermatrix of the Great Apes (Hominidae, Primates, Mammalia) (see “Materials and Methods” for the details); Papio is assumed to be the best all-plesiomorphic group. “Additional…” FORESTER’s output tree file (see “Materials and Methods” for the details) selected for future analyses; (C) the average consensus tree of the score 0.00090 resulted the analysis of the Hennigian forest of the 5,339 trees derived from the modified binary representation of the 98-loci supermatrix of the Great Apes (Hominidae, Primates, Mammalia) (see 6.I. and “Materials and Methods” for the details), but with all 168 trees, which contain the clade (Homo plus Pan) have been removed from the input forest. “Additional…” FORESTER’s output tree file (see “Materials and Methods”) selected for future analyses. [O] . -1

机译：图6：（A）树导致的标准MP分析的98-基因座的类人猿（人科，灵长类动物，哺乳动物），使用莱赫托宁等人的修改的摘要构成的超级矩阵。（2011）（参见细节“材料和方法”）以及相对植根狒狒后验概率（长度= 12092，CI = 0.7877，RI = 0.5597）; 34022个字符是恒定的，并且简约信息的字符数等于4311。下面提供分支MP BS值。与外类群（狒狒）的非模糊值的唯一的字符已被保存的级联对准内; （B）的得分0.00084的平均一致树导致从巨猿（原始人类，灵长类动物，哺乳动物）的98座超级矩阵的二进制表示获得的5507棵的Hennigian森林的分析（见“材料和方法”为细节）;狒狒被认为是最好的全祖征群。 “其他...” FORESTER的输出树文件（请参阅详细信息“材料和方法”），用于进一步的分析; （C）的分数0.00090的平均一致树导致从98个位点的类人猿（人科，灵长类动物，哺乳动物）的超级矩阵（见6.I的改性二进制表示导出的5339种树木的Hennigian森林的分析以及“材料和方法”的详细说明），但所有168棵，其中包含的分支（智人加PAN）已经从输入林中删除。 “其他...” FORESTER的输出树文件（参见“材料和方法”），用于进一步的分析。

ANALYSING SOFT GROUND IMPROVEMENT CAUSED BY TREE ROOT SUCTION

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