Root pullout resistance
WebSep 5, 2024 · When the pullout strength is added to the plant root prediction model, the soil consolidation effect of the plant root system can be better reflected. The range of the revised coefficient of the WWM model for the root soil composite tailing soil is 0.15~0.37. WebJan 18, 2024 · The pullout mechanical characteristics of soil reinforcement and slope protection of the root systems of dominant shrub species (Pyracantha and Geranium) …
Root pullout resistance
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WebJan 1, 2024 · Root pull-out resistance characteristics of herbaceous plants with different growth periods. In this study, one-way analysis of variance was conducted, and it was found that the growth period of alfalfa has a significant impact on its root pull-out ability. ... The pull-out resistance of plant roots is closely related to root characteristics ... WebDec 1, 2024 · Root anchoring in the soil provides significant resistance for trees to resist against the wind and potential soil shear failure in a slope. Soil conditions and root properties affect...
WebOct 1, 2014 · Pull-out resistance has been identified as one of the key reinforcement mechanisms for a plant root system to increase slope stability, but the effects of root … WebDec 1, 2024 · Discussion 4.1. Pullout resistance of roots in the field. The soil condition surrounding the root is an important factor in the... 4.2. Effect of soil water contents. Soil strength decreases with soil water contents, especially in cohesive soils. 4.3. Effect of … Two adjacent 10 m × 20 m hillslope transects with similar slope gradient … Additional studies by Waldron and Dakessian (1981) and others advanced … This adaptive root architecture emphasizes upslope root resistance to pullout, … Comparison of the variation in pullout and breaking forces with increasing root …
WebFeb 17, 2024 · The peak pullout resistance of the roots increased with root diameter, root length and root surface area, and power law relationships were observed between the … WebJul 27, 2024 · When the pull-out force exceeded the pull-out resistance, that was, the lotus root broke away from the soil, the test was considered to be finished. The next test was …
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WebSep 4, 2007 · Soil water suction increased the pullout resistance of the roots by increasing the effective stress and soil strength. Separate pullout tests conducted on willow root samples embedded in sand showed similar behaviour to the rigid model roots. These tests also demonstrated the effect of the root curvature and rough interface on the maximum ... chic s beachWebNov 27, 2024 · Liu Y, Gao J, Lou H, Zhang J and Cui Q 2011 The root anchorage ability of Salix alba var. tristis using a pull-out test Afr. J. Biotechnol. 10 16501–7. Crossref; Google Scholar; Lundström T, Jonsson M J and Kalberer M 2007 The root-soil system of Norway spruce subjected to turning moment: resistance as a function of rotation Plant Soil 300 ... chic scott banffWebJan 1, 2014 · Pullout strength test needs minimum 10 cm of root protruding outside the soil. Ideally, the sample should be at least 0.5 m away from the base of the tree. A pullout strength test is counted successful if successive straining decreases the stress, indicating the loss of soil–root bond. goshen car rentalWebThe pullout test was executed at a constant speed of 2 mm min −1 till the root fracture. The pullout resistance and displacement were recorded for statistical analysis. Download : Download high-res image (172KB) Download : Download full-size image; Fig. 2. Diagrammatic sketch of pullout-test. chic scarfWebNov 27, 2024 · Branching along the root length significantly increases pullout resistance (Schwarz et al 2011). The effect of branching is a subject of continued study and depends on both root and soil material properties that affect how branches deform and requires consideration of coupled axial and bending behavior of roots (Mickovski et al 2007 , … chics beach seafoodWebThe average pull-out resistance was 2.25 ± 0.45 kN. Two distinct peak values were observed in the average of pull-out resistance force as against the displacement. The first peak (P1) value is due the maximum lateral root resistance whereby the second peak (P2) is the maximum mobilized tap root resistance (Figure 4). This chic scott booksWebSep 4, 2007 · Soil water suction increased the pullout resistance of the roots by increasing the effective stress and soil strength. Separate pullout tests conducted on willow root … goshen ca semi truck road service