Discrete Element Modelling of uplift of rigid pipes deeply buried in dense sand

Li, Xin; Kouretzis, George; Thoeni, Klaus

doi:10.1016/j.compgeo.2023.105957

Cited by 3 publications

(1 citation statement)

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“…These methods are essential for calibrating and verifying the accuracy of DEM simulations, ensuring the reliability of their outcomes. The triaxial compression test [18,19] provides a detailed assessment of the pebble properties and their interaction dynamics. However, the effectiveness of this test in measuring the load-bearing capacity of pebble beds is limited due to the potential interference from the boundary walls.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Load-Bearing Capacity of Pebble Aggregates

Liu,

Bai,

Liu

2024

Applied Sciences

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The load-bearing capacity of pebble aggregates plays a pivotal role in influencing the operational performance of uncontrolled trucks on arrester beds. The complexity of this phenomenon stems from the nonuniformity in the shapes of the pebbles and their stochastic arrangement within the beds, presenting notable challenges for traditional mathematical modelling techniques in precisely evaluating the contact dynamics of these aggregates. This study leverages the discrete element method (DEM) to extensively analyse the arrester bed aggregate of a standard truck escape ramp. The aforementioned mechanism entails the gathering of morphological parameters of irregularly shaped aggregate particles and introduces a novel method for constructing random shapes that adhere to the observed distribution characteristics. A discrete element model, grounded in the physical properties of these aggregates, is formulated. This study focuses on the aggregate’s load-bearing capabilities, scrutinising the mechanical behaviour of the aggregate particles at the macroscopic and microscopic scales. These insights offer substantial scientific contributions and practical implications for assessing the safety of escape ramps and determining essential parameters for the brake bed design.

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Section: Introductionmentioning

confidence: 99%