The effect of mine induced tremors on seismic response of soil-steel bridges

Maleska, Tomasz; Bęben, Damian

doi:10.1051/matecconf/201817404002

Cited by 6 publications

(3 citation statements)

References 10 publications

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“…The research on the safety of the soil steel bridge, culvert and tunnel has gradually attracted the attention of scholars [21]. Maleska et al [22,23] successively studied the durability of the soil steel bridge under rock burst and the performance of the steel soil tunnel under a seismic load. Flener s research [24] shows that the backfilling process, covering depth and sealing depth of the soil steel culvert are important factors that affect the performance of the box culvert.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Risk Assessment of Ultra-Shallow-Buried and Large-Span Double-Arch Tunnel Construction

Wang

Cao

et al. 2021

Applied Sciences

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Ultra-shallow-buried and large-span double-arch tunnels face complex risks during construction. The risk sources are hidden, complicated, and diverse. The dynamic risk assessment problem cannot be solved satisfactorily by using the static method as an insufficient amount of research has been conducted. The land part of the Xiamen Haicang double-arch tunnel was selected as the background for the dynamic risk assessment of ultra-shallow-buried and large-span double-arch tunnel construction. The construction process was divided into five stages: pre-construction preparation; ground and surrounding rock reinforcement; pilot tunnel excavation; and the single-and the double-tunnel excavations of the main tunnel. Through consultation with tunnel experts, six first-level and thirty second-level risk evaluation indexes were proposed. The benchmark weight of the dynamic risk assessment index was determined by using the analytic hierarchy process. The weight of the risk evaluation index was revised according to the monitoring data and the construction stage. The fuzzy evaluation matrix of the construction risk membership degree was obtained by using the fuzzy comprehensive assessment method, and the calculation results were analyzed using the subsection assignment method. Control measures were suggested according to the risk assessment results. The risk assessment result of the double tunnel excavation stage of the main tunnel was level II, and the risk level was the highest among the five construction stages. The risk assessment result of the ground and surrounding rock reinforcement stage was level IV, and the risk level was the lowest. The dynamic construction safety risk assessment based on the fuzzy comprehensive assessment method is more timely, accurate, and reasonable than the traditional assessment method. The method can be adopted in similar engineering projects.

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Section: Introductionmentioning

confidence: 99%

Dynamic Risk Assessment of Ultra-Shallow-Buried and Large-Span Double-Arch Tunnel Construction

Wang

Cao

et al. 2021

Applied Sciences

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“…Vaslestad and Sayd [20] presented the numerical modelling of the load reduction on buried rigid culverts using EPS blocks. Abuhajtar et al [21] and Maleska and Beben [22] conducted numerical analyses of soil-steel bridges under seismic and anthropogenic (rockburst) excitations, respectively. In addition, Arellano et al [14] determined the most important benefits of using EPS as a lightweight fill material, such as: (1) Ease and quickness of construction, (2) ability to easily implement phased construction, (3) easy storage for use in emergency slope stabilization repairs, (4) ability to reuse the EPS blocks, (5) ability to be used in unfavorable weather conditions, (6) reduction of lateral pressure on bridge abutments, (7) excellent durability, and (8) ability to damp seismic tremors.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Application of EPS Geofoam to a Soil–Steel Bridge to Reduce Seismic Excitations

2019

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There have only been a limited number of analyses of soil–steel bridges under seismic and anthropogenic (rockburst) excitations. Rockbursts are phenomena similar to low-intensity natural earthquakes. They can be observed in Poland (Upper and Lower Silesia) as well as in many parts of the world where coal and gas are mined. The influence of rockbursts and natural earthquakes on soil–steel bridges should be investigated because the ground motions caused by these two kinds of excitations differ. In the present paper, a non-linear analysis of a soil–steel bridge was carried out. Expanded polystyrene (EPS) geofoam blocks were used in a numerical model of the soil–steel bridge to buffer the seismic wave induced by a rockburst (coming from a coal mine) as well as a natural earthquake (El Centro record). The analyzed soil–steel bridge had two closed pipe arches in its cross-section. The span of the shells was 4.40 m and the height of the shells was 2.80 m. The numerical analysis was conducted using the DIANA program based on the finite element method (FEM). The paper presents the FEM results of a 3D numerical study of a soil–steel bridge both with and without the application of the EPS geofoam under seismic excitations. The obtained results can be interesting to bridge engineers and scientists dealing with the design and analysis of bridges situated in seismic and mining areas.

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