Superficial Consolidation of Rock Slope: Design at the Ultimate and Seriviceability Limit State

Giacchetti, Giorgio; Grimod, Alberto

doi:10.1007/978-3-319-09057-3_334

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…Despite anchored drapery systems being applied worldwide, their design is still mainly based on engineers' work experience. The few design approaches proposed in the literature [4][5][6][7] are based on limit equilibrium computations and differ in terms of failure mechanisms (i.e., local or global), slope type (i.e., soil-like or rock-like), and the eventual pre-tension of the mesh. Blanco-Fernandez et al [5] provided an overview of the existing design methods.…”

Section: Introductionmentioning

confidence: 99%

Towards a Hybrid Design Approach of Anchored Drapery Systems

et al. 2023

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Anchored drapery meshes represent a worldwide adopted protective solution against rockfall. The mechanical performance of a wire mesh is evaluated through laboratory procedures in which the boundary conditions strongly differ from the ones typical of field applications. This shows that the laboratory characterization is, in general, not representative of the field behavior. In this work, referring to a double-twisted wire mesh, a simple approach allowing the extension of the laboratory characteristic values to field conditions is proposed. The approach is based on the definition of analytical relations for evaluating the effects of both the mesh’s system geometry and the loading condition on the force–displacement response. These relations are derived from previously calibrated laboratory tests and are extended to different configurations on the basis of a large number of discrete element simulations. A master curve allowing the prediction of the entire force–displacement response of a general configuration of the drapery system is then defined. The results of this study can provide useful information for designing anchored drapery systems and can be easily associated with standard limit equilibrium calculations to move toward a hybrid design approach that couples forces with mesh deformations.

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Section: Introductionmentioning

confidence: 99%

Towards a Hybrid Design Approach of Anchored Drapery Systems

et al. 2023

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“…Among them, reinforced drapery meshes, subdivided into secured or pinned draperies, represent an effective solution for minimizing rockfall risk, especially for vertical rock faces overhanging road infrastructures [4,5]. The system consists of steel wire mesh panels and a systematic anchoring pattern, which directly acts on the stability of the rock surface [6,7]. In secured drapery, the anchors, whose pattern can be squared or quincunx-like, are connected to each other and to the net through ropes, forming a rhomboidal or square rope grid.…”

Section: Introductionmentioning

confidence: 99%

Reinforced Drapery Meshes: A Design Method Accounting for Retaining Ropes Contribution

Marchelli

Giacchetti²

2021

Applied Sciences

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Reinforced drapery meshes, both secured and pinned, constitute a compelling solution for rockfall risk mitigation on rock slopes facing structures and infrastructures. They consist of steel wire mesh panels combined with a systematic anchoring pattern. In secured drapery systems, the anchors are connected to each other and to the net through ropes. The system prevents both global instability of the surficial part of the slope thanks to the anchors and local instability by confining small detached fragments in delimited mesh sections. The mesh is generally designed with mechanical resistance derived from the puncturing force–displacement behavior observed during a standardized laboratory test. Despite the fact that a codified design method has not yet been defined, the mesh is generally verified without considering the presence of the ropes. In the present work, an enhanced design method is introduced that accounts for retaining ropes, with the aim of achieving a confining effect similar to the constraints adopted in laboratory tests. In addition, the rope pattern enables the consideration of portions of mesh smaller than pinned drapery systems. In the proposed method, rope elongation is limited such that failure of the mesh near the anchor plate is prevented. The proposed design assessment reveals that the presence of ropes provides possible cost reductions in the choice of the mesh type.

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Superficial Consolidation of Rock Slope: Design at the Ultimate and Seriviceability Limit State

Cited by 2 publications

References 2 publications

Towards a Hybrid Design Approach of Anchored Drapery Systems

Towards a Hybrid Design Approach of Anchored Drapery Systems

Reinforced Drapery Meshes: A Design Method Accounting for Retaining Ropes Contribution

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