BACKGROUND AND AIMS The Finite Element Method (FEM) has been used in recent years to simulate overturning processes in trees. This study aimed at using FEM to determine the role of individual roots in tree anchorage with regard to different rooting patterns, and to estimate stress distribution in the soil and roots during overturning. METHODS The FEM was used to carry out 2-D simulations of t...

With the growing population and density in metropolitan areas, higher tendency to live in high-rise buildings, and increasing demand for parking lots, it seems necessary to excavate soil to construct underground spaces. During excavation work, as the height of the wall increases, special care should be taken to the wall stabilization to avoid any consequent damage including extensive property d...

with the growing population and density in metropolitan areas, higher tendency to live in high-rise buildings, and increasing demand for parking lots, it seems necessary to excavate soil to construct underground spaces. during excavation work, as the height of the wall increases, special care should be taken to the wall stabilization to avoid any consequent damage including extensive property d...

W-beam systems utilize end-terminal anchorages to develop tension upstream and downstream of an impact event. However, the capacities of the anchorage components under impact loading are not well known. One such W-beam end anchorage system, the Midwest guardrail system (MGS) trailing-end anchorage, was evaluated using three dynamic component tests _ a soil foundation tube pull test, a breakaway...

The relationship between the anchorage mechanics and root architecture of Pinus peuce was investigated by carrying out winching tests and examining excavated root systems of 20 mature trees. The root system was dominated by 6.1 ± 1.3 lateral roots, more than 70% of the lateral root cross sectional area (CSA) being distributed in the uppermost 10 cm of soil. Anchorage strength was related to the...

Matthew L. Carlson, Lindsey A. Flagstad, François Gillet and Edward A. D. Mitchell* Alaska Natural Heritage Program and Biological Sciences Department, University of Alaska Anchorage, 707 A St., Anchorage, AK 99501, USA; Laboratoire Chrono-Environnement, UMR 6249 CNRS, Université de Franche-Comté, 16 route de Gray, 25030 Besançon Cedex, France; École Polytechnique Fédérale de Lausanne, Laborato...

Large deformation causing damage due to uplift force is generated in buried pipeline located in shallow trenches in marshes and saturated soils. In this paper, existing common methods of pipeline anchorage are discussed and considering advantages and disadvantages of these methods, a new method of pipeline anchorage are studied and presented. In this new developed method, geo-textile materials ...

Root anchoring provides nonnegligible assistance to prevent soil erosion and stabilize slopes. The ability of plants suffers a tremendous impact from the conditions root characteristics. To reveal reinforcement effect, group pullout tests was conducted on five different tree systems (Pinus tabulaeformis, Betula platyphylla, Larix gmelinii, Quercus mongolica, Ulmus pumila) with moisture contents...

The present study compared the performance of soldier pile and concrete bearing pad anchored wall facings. Using Abaqus finite element software, two case studies have been precisely represented for the facing designs and effects of the parameters of soil type, spacing of anchors and facings, surcharge and facing sizes were investigated. The analysis results indicate that the soldier pile method...