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Journal articles on the topic 'Debris impact on bridges'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Xu, Rongjing. "Influence of Extreme Weather and Its Secondary Disasters on Bridges." Highlights in Science, Engineering and Technology 18 (November 13, 2022): 148–54. http://dx.doi.org/10.54097/hset.v18i.2650.

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Global climate change causes more and more extreme weather happened frequently. It poses a new challenge to the structural safety of civil engineering. Nowadays, bridge engineering designs must consider the possibility of extreme climates and the social, economic, and environmental damage they cause. In this paper, the influence of three kinds of extreme weather on bridges is summarized by the method of comprehensive narration, and the influence of secondary disasters is described. Results show that both extreme weather and secondary disasters can significantly impact bridges. Extreme weather

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2

Mahfuz, Mahfuz, Mochammad Afifuddin, and Renni Anggraini. "TINJAUAN GAYA TSUNAMI PADA JEMBATAN KRUENG RABA." Jurnal Arsip Rekayasa Sipil dan Perencanaan 3, no. 2 (2020): 177–85. http://dx.doi.org/10.24815/jarsp.v3i2.16568.

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Aceh Province is located in one of the earth's fault lines in Indonesia, which is an area prone to earthquakes and the potential for a tsunami disaster. Therefore, any planning of structures located on the coast must consider the potential for a tsunami to obtain a strong structure to withstand the forces affected by the tsunami. During the 2004 tsunami, many bridges were carried away by the tsunami. Both bridges made of concrete, as well as steel frame bridges, such as the Krueng Raba steel frame bridge, Lhoknga, the Krueng No bridge, the Meunasah Kulam bridge, and several other bridges. This

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3

Majtan, Eda, Lee S. Cunningham, and Benedict D. Rogers. "Experimental and Numerical Investigation of Floating Large Woody Debris Impact on a Masonry Arch Bridge." Journal of Marine Science and Engineering 10, no. 7 (2022): 911. http://dx.doi.org/10.3390/jmse10070911.

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Masonry arch bridges form an essential part of existing transport infrastructure around the world, including mainland Europe and the northeastern US. Recent extreme flood events highlight that masonry arch bridges spanning watercourses are vulnerable to flood-induced hydrodynamic and debris impact loads. When the flow interacts with the bridge superstructure, with or without discrete floating debris, a complex interaction is observed. This paper presents both experimental and numerical studies to investigate this complex phenomenon, including fluid–structure and structure–structure interaction

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4

Thi Kim Chi, Thai. "Badanie numeryczne spływów rumoszowych wokół filarów mostu." Roads and Bridges - Drogi i Mosty 21, no. 4 (2022): 331–42. http://dx.doi.org/10.7409/rabdim.022.019.

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Landslide is a natural hazard that has crucial direct impact on the socio-economic system. Among various types of landslides, debris flows are a major threat to transportation structures such as bridges in mountainous areas. Vulnerability analysis of bridges that are exposed to debris flows is an important part of risk assessment and management. In the presented study, the characteristics of debris flows around bridge piers are investigated numerically for different boundary conditions using ANSYS FLUENT software. The non-Newtonian power-law model was used to model the debris flow. Drag coeffi

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Zhang, Xun, Zhipeng Wen, Wensu Chen, Xiyang Wang, and Yan Zhu. "Dynamic analysis of coupled train–track–bridge system subjected to debris flow impact." Advances in Structural Engineering 22, no. 4 (2018): 919–34. http://dx.doi.org/10.1177/1369433218785643.

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With the increasing popularity of high-speed railway, more and more bridges are being constructed in Western China where debris flows are very common. A debris flow with moderate intensity may endanger a high-speed train traveling on a bridge, since its direct impact leads to adverse dynamic responses of the bridge and the track structure. In order to address this issue, a dynamic analysis model is established for studying vibrations of coupled train–track–bridge system subjected to debris flow impact, in which a model of debris flow impact load in time domain is proposed and applied on bridge

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6

Cheng, Mai-Li. "Numerical Analysis of the Dynamic Response of Concrete Bridge Piers under the Impact of Rock Debris Flow." Buildings 14, no. 6 (2024): 1504. http://dx.doi.org/10.3390/buildings14061504.

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The impact and damage caused by debris flow on concrete bridges have become a typical disaster scenario. However, the impact disaster mechanism of debris flow on bridge structures remains unclear. This study focused on investigating the impact mechanism of debris avalanches on concrete bridge piers. By employing the discrete element numerical simulation method to examine the effect of debris on concrete bridge piers, the analysis explored the influence of three significant factors: the pier’s section shape, the impact distance, and the slope angle of the sliding chute. The discussions included

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7

Liu, Li, Hong Kai Chen, and Hong Mei Tang. "Study on the Damage Mechanism of Bridge Pier and Foundation by Turbulent Debris Flow." Advanced Materials Research 228-229 (April 2011): 776–81. http://dx.doi.org/10.4028/www.scientific.net/amr.228-229.776.

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The debris flow is the uppermost water-destroyed type of highway, which caused large direct economic loss annually in china, especially in mountainous area highway small bridges and culvert damaged seriously. This paper started from the theory of debris flow two-phase flow, it is divide turbulent debris flow into liquid and solid, and with the turbulent debris flow wash against bridge pier increased, the erode depth overpass the burial depth of foundation, base bearing capacity reduced gradually and then result bridge pier instability; in addition for the strong force of impact of debris flow

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8

Liao, Li Ping, Ying Yan Zhu, D. H. Steve Zou, et al. "Key Point of Bridge Damage Caused by Glacial Debris Flows along International Karakorum Highway, Pakistan." Applied Mechanics and Materials 256-259 (December 2012): 2713–23. http://dx.doi.org/10.4028/www.scientific.net/amm.256-259.2713.

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Glacial debris flows along International Karakorum Highway (KKH) connecting northern Pakistan with China, are always causing so extreme threats to a majority of bridges built along KKH. So the improvement project of KKH has been being carried out by China Road & Bridge Corporation in 2008. However it is necessary to collect the detailed data about the damages to bridges and obtain the most dangerous key position. The series of field investigations from 2008 to 2011 demonstrate that the damages are classified into four categories: deposition under bridge, abrasive erosion, impact on piers o

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9

Friedl, Caroline, Christian Scheidl, Susanna Wernhart, and Dirk Proske. "Laboratory experiments to analyse the influence of bridge profiles on debris-flow impact forces." E3S Web of Conferences 415 (2023): 02006. http://dx.doi.org/10.1051/e3sconf/202341502006.

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Debris-flow impact plays a significant role in the failure of bridges in mountainous areas posing a risk to human life and leading to high reconstruction costs. The aim of this study is to measure and quantify the frontal impact forces of debris flows on bridge superstructures based on laboratory experiments with a special regard to the comparison of two different bridge profiles and the presence / absence of a bridge pier. To this end, we conducted 20 experiments, measuring the frontal impact forces on the bridge superstructure with two 3-axis force sensors at the abutments of the miniature b

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10

Proske, Dirk, Alexander Krawtschuk, Oliver Zeman, Christian Scheidl, and Michael Chiari. "Debris flow impacts on masonry arch bridges." Proceedings of the Institution of Civil Engineers - Bridge Engineering 171, no. 1 (2018): 25–36. http://dx.doi.org/10.1680/jbren.16.00005.

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11

Khan, Mudassir Ali, Zahiraniza Mustaffa, Indrasati Hamonangan Harahap, and Mohammad Ahmadullah Farooqi. "Mitigating Geohazards: CFD-Driven Analysis of Viscoplastic Debris Flow Impact on Resilient Oil and Gas Pipeline Design in Alpine Terrains." Semarak International Journal of Civil and Structural Engineering 1, no. 1 (2024): 8–15. https://doi.org/10.37934/sijcse.1.1.815.

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Debris flow is one of the catastrophic geohazard, poses significant threat to all system of infrastructure including buildings, bridges, pipelines and retaining walls. For the sustainable design of oil and gas pipeline prone to debris flow hazard, It is crucial to consider the expected debris flow impact forces to ensure the safe and effective performance of pipeline. This study numerically investigates the dynamic impact of viscous debris flow on exposed pipeline. Altair Hyperwork CFD software was utilized to perform numerical investigation in CFD environment, simulating two-phase debris flow

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12

Khan, Mudassir Ali, Zahiraniza Mustaffa, Indrasati Hamonangan Harahap, and Mohammad Ahmadullah Farooqi. "Mitigating Geohazards: CFD-Driven Analysis of Viscoplastic Debris Flow Impact on Resilient Oil and Gas Pipeline Design in Alpine Terrains." Semarak International Journal of Civil and Structural Engineering 1, no. 1 (2025): 8–15. https://doi.org/10.37934/sijcse.1.1.815a.

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Debris flow is one of the catastrophic geohazard, poses significant threat to all system of infrastructure including buildings, bridges, pipelines and retaining walls. For the sustainable design of oil and gas pipeline prone to debris flow hazard, It is crucial to consider the expected debris flow impact forces to ensure the safe and effective performance of pipeline. This study numerically investigates the dynamic impact of viscous debris flow on exposed pipeline. Altair Hyperwork CFD software was utilized to perform numerical investigation in CFD environment, simulating two-phase debris flow

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13

Van Bogaert, Philippe, and Hans De Backer. "The Effects of River Torrents and Debris on Historic Masonry Vaulted Arch Bridges." Buildings 14, no. 1 (2023): 54. http://dx.doi.org/10.3390/buildings14010054.

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The carrying capacity for vertical loads of well-maintained masonry arch bridges is reasonably high. This might not be the case for horizontal loads, the effects of which have not been the subject of extensive research aside from seismic occurrences. Arch bridges crossing rivers are subjected to sudden horizontal loads, due to river torrents, carrying debris from higher grounds. The magnitude of these horizontal loads is similar to those of coastal waves and debris; however, their effect on these structures has yet to be explored in detail. The narrow and high Devil’s Bridge across the Arda Ri

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14

Holemba, Gibson Ali, and Takashi Matsumoto. "Flood-induced Bridge Failures in Papua New Guinea." MATEC Web of Conferences 258 (2019): 03014. http://dx.doi.org/10.1051/matecconf/201925803014.

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Papua New Guinea has been experiencing frequent bridge failures and collapses due to flooding rivers in the recent past. According to the records from Papua New Guinea Department of Works, it is estimated that over Two Hundred and Eighty (285) bridges, fords (causeways) and major culverts were damaged by flood action alone in the last five years between 2013-2017. That is approximately at an average rate of 57 bridges in a year. This result is very disturbing and as such this study was undertaken to assess and analyze the flood-induced bridge failure causes and offer applicable solutions. This

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15

VanDine, D. F. "Debris flows and debris torrents in the Southern Canadian Cordillera." Canadian Geotechnical Journal 22, no. 1 (1985): 44–68. http://dx.doi.org/10.1139/t85-006.

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In Canada, debris torrents (also referred to as channelized debris flows) occur in parts of British Columbia, Alberta, and the Yukon. At least 17 deaths and an estimated $100 million of damage to bridges and property can be attributed to this natural hazard. The debris mainly comprises large boulders, rock fragments, gravel- to clay-sized material, tree and wood mulch—materials that accumulate in the mountain creeks. To be susceptible to a debris torrent, a creek must have a drainage area within a critical range, a profile that is sufficiently steep, an accumulation of debris, and some form of

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16

Wang, Xiu-Li, Yong Yao, Sai-Long Wang, Zhu-Jun Feng, and Yun-Peng Chu. "Experimental Study on Dynamic Performance of Tubular Flange Grid-Type Dam under Impact Load." Symmetry 14, no. 7 (2022): 1486. http://dx.doi.org/10.3390/sym14071486.

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As one of the most dangerous geological hazards in the world, debris flows can destroy trees and structures, break electrical, water, and gas lines, and disrupt bridges and roadways in a short period of time, threatening life and property. In particular, fast-moving large boulders carried by debris-induced destructive impact loading can strike objects without warning. To resist impact loading caused by rocks in debris, this paper proposed an innovative grid-type debris dam (or Sabo dam) design composed of symmetrical cross-sections of steel tubular flange beams and columns. This paper studied

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17

Wang, Fei, Jiading Wang, Xiaoqing Chen, Shaoxiong Zhang, Haijun Qiu, and Canyun Lou. "Numerical Simulation of Boulder Fluid–Solid Coupling in Debris Flow: A Case Study in Zhouqu County, Gansu Province, China." Water 14, no. 23 (2022): 3884. http://dx.doi.org/10.3390/w14233884.

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Boulders mixed with debris flows roll downstream under interactions with debris flow slurry, which poses a great threat to the people, houses, bridges, and other infrastructure encountered during their movement. The catastrophic debris flow in Zhouqu County, which occurred on 7 August 2010, was used as an example to study the motion and accumulation characteristics of boulders in debris flows. In this study, a fluid–solid coupling model utilizing the general moving objects collision model and the renormalization group turbulent model was used in the FLOW-3D software, treating boulders with dif

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18

Kosič, Mirko, Andrej Anžlin, and Valentina Bau’. "Flood Vulnerability Study of a Roadway Bridge Subjected to Hydrodynamic Actions, Local Scour and Wood Debris Accumulation." Water 15, no. 1 (2022): 129. http://dx.doi.org/10.3390/w15010129.

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The increased occurrence and intensity of flooding events have represented a real threat to bridge reliability and end-user safety. As flood vulnerability assessment is a valuable tool for enhancing the resilience of bridges to climate change, it is of interest to push the development of such methods. To this end, a computationally efficient methodology to assess the flood vulnerability of a bridge was developed and implemented in a case study. A particular focus was devoted to modelling wood debris loads on the bridge pier, for which two different approaches were implemented. The first is a s

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19

Xiu, Zhen Yu, Ming Jie Zhang, Chen Zhang, and Yu Hong. "Analysis of Solid T-Pier Dynamic Response to Debris Flow." Applied Mechanics and Materials 744-746 (March 2015): 739–43. http://dx.doi.org/10.4028/www.scientific.net/amm.744-746.739.

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In recent years, traffic lines are rapidly thrusting into the hilly regions[1]. It’s not hard to list such cases that bridges have been damaged by mud-rock flow. In this paper, it is studied that the dynamic response of the solid T-pier to mud-rock flow. a finite element method is applied to analyse the effects of the stress and strain of an T-pier under the impact action of mud-rock flow with different velocity.

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20

Cheng, Mai-Li, and Wen-Wei Gao. "Study on the Impact Law of V-Shaped Gully Debris Avalanches on Double-Column Piers." Buildings 14, no. 3 (2024): 577. http://dx.doi.org/10.3390/buildings14030577.

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The concrete piers in steep mountain areas are highly susceptible to damage disasters due to the impact of debris avalanches, which pose a serious threat to the safe operation of bridge structures. In order to investigate the impact load characteristics of debris avalanches on bridge pier structures in V-shaped valley mountain areas, Particle Flow Code 3D (PFC3D) models based on a discrete element method were applied in this study to establish a full-scale three-dimensional model of a debris avalanche in a V-shaped valley. By installing double-column piers in the influence zone of the debris a

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21

Mohamed, Heba A., M. M. Husain, and Ayman M. Aboraya. "Progressive Collapse of RC Box Girder Bridges due to Seismic Actions." Advances in Civil Engineering 2020 (September 23, 2020): 1–17. http://dx.doi.org/10.1155/2020/1919683.

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Most of the recent studies focus on the progressive collapse of ordinary structures due to gravity and blast loads. A few focus on studying progressive collapse due to seismic actions, especially of bridge structures. The past major earthquakes have shown that it is possible to develop improved earthquake-resistant design techniques for new bridges if the process of damage from initial failure to ultimate collapse and its effects on structural failure mechanisms could be analyzed and monitored. This paper presents a simulation and analysis of bridge progressive collapse behavior during seismic

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22

Putra, M. H. Z., D. Sarah, I. A. Sadisun, E. Soebowo, A. N. Aulia, and Sukristiyanti. "Modeling and mapping the environmental impact of debris flow hazard on alluvial fans for sustainable development in Bangga and Poi Villages, Sigi, Central Sulawesi." IOP Conference Series: Earth and Environmental Science 1201, no. 1 (2023): 012028. http://dx.doi.org/10.1088/1755-1315/1201/1/012028.

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Abstract On September 28, 2018, an Mw 7.5 Palu earthquake triggered massive landslides upstream, followed by 24 debris flood events that spread to 15 villages in Sigi from September 2018 to December 2021. Debris flow and flash floods on alluvial fans inundated lowland communities, causing severe property destruction and structural damage to bridges and roadways and resulting in an estimated 900 damaged houses. Understanding their historical occurrence is essential to sustainable fan development and minimizing their threat to infrastructure and human life due to their severe geohazard potential

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23

Alipour, Alice. "Enhancing Resilience of Bridges to Extreme Events by Rapid Damage Assessment and Response Strategies." Transportation Research Record: Journal of the Transportation Research Board 2604, no. 1 (2017): 54–62. http://dx.doi.org/10.3141/2604-07.

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The U.S. highway transportation network consists of more than 650,000 bridges that are essential to maintaining the performance of the network. The existing bridges are, however, vulnerable to a variety of natural and manufactured (human-caused) hazards and may act as bottlenecks in the case of any failures. The most common extreme events include natural hazards, such as ground excitation during earthquakes, high wind and storm surges in hurricanes, and scouring and debris impacts during floods. Despite several advances in the technologies available for the design of new bridges and the retrof

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Dewedar, Ahmed Kamal Hamed, Donato Palumbo, and Massimiliano Pepe. "Hydraulic Risk Assessment on Historic Masonry Bridges Using Hydraulic Open-Source Software and Geomatics Techniques: A Case Study of the “Hannibal Bridge”, Italy." Remote Sensing 16, no. 16 (2024): 2994. http://dx.doi.org/10.3390/rs16162994.

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This paper investigates the impact of flood-induced hydrodynamic forces and high discharge on the masonry arch “Hannibal Bridge” (called “Ponte di Annibale” in Italy) using the Hydraulic Engineering Center’s River Analysis Simulation (HEC-RAS) v6.5.0. hydraulic numerical method, incorporating Unmanned Aerial Vehicle (UAV) photogrammetry and aerial Light Detection and Ranging (LIDAR) data for visual analysis. The research highlights the highly transient behavior of fast flood flows, particularly when carrying debris, and their effect on bridge superstructures. Utilizing a Digital Elevation Mode

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25

Williams, James H., Thomas M. Wilson, Nick Horspool, et al. "Assessing transportation vulnerability to tsunamis: utilising post-event field data from the 2011 Tōhoku tsunami, Japan, and the 2015 Illapel tsunami, Chile." Natural Hazards and Earth System Sciences 20, no. 2 (2020): 451–70. http://dx.doi.org/10.5194/nhess-20-451-2020.

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Abstract. Transportation infrastructure is crucial to the operation of society, particularly during post-event response and recovery. Transportation assets, such as roads and bridges, can be exposed to tsunami impacts when near the coast. Using fragility functions in an impact assessment identifies potential tsunami effects to inform decisions on potential mitigation strategies. Such functions have not been available for transportation assets exposed to tsunami hazard in the past due to limited empirical datasets. This study provides a suite of observations on the influence of tsunami inundati

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26

Ma, Xiaolong, and Wei Zhang. "Dynamic amplification responses of short span bridges considering scour and debris impacts." Engineering Structures 252 (February 2022): 113644. http://dx.doi.org/10.1016/j.engstruct.2021.113644.

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27

Al-Jubouri, Muhanad, Richard P. Ray, and Ethar H. Abbas. "Advanced Numerical Simulation of Scour around Bridge Piers: Effects of Pier Geometry and Debris on Scour Depth." Journal of Marine Science and Engineering 12, no. 9 (2024): 1637. http://dx.doi.org/10.3390/jmse12091637.

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Investigating different pier shapes and debris Finteractions in scour patterns is vital for understanding the risks to bridge stability. This study investigates the impact of different shapes of pier and debris interactions on scour patterns using numerical simulations with flow-3D and controlled laboratory experiments. The model setup is rigorously calibrated against a physical flume experiment, incorporating a steady-state flow as the initial condition for sediment transport simulations. The Fractional Area/Volume Obstacle Representation (FAVOR) technique and the renormalized group (RNG) tur

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28

Winter, M. G. "Chapter 5 Debris flows." Geological Society, London, Engineering Geology Special Publications 29, no. 1 (2020): 163–85. http://dx.doi.org/10.1144/egsp29.5.

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AbstractFast-moving, rainfall-induced debris-flow events are relatively common in the mountainous areas of the UK. Their impacts are largely, although by no means exclusively, economic and social. They often sever (or delay) access to and from relatively remote communities for services and markets for goods; employment, health and educational opportunities; and social activities. Specific forms of economic impact are described and their extent is defined by the vulnerability shadow. The mechanisms of rainfall-induced, fast-moving debris flows are considered to bridge between slow mass movement

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29

Chen, Hong Kai, Xiao Ying He, Ying Zhong, and Hong Mei Tang. "Study on Consolidation Mechanism of Debris Flow Deposit." Advanced Materials Research 446-449 (January 2012): 1674–84. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.1674.

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The damage of debris flow effected on highway subgrade, pavement, protective structure, bridge and culvert laid on debris flow impact fracture and buried damage. Thus far, research on debris flow burying mechanism is still fuzzy. According to the two-phase flow theory of debris flow deposit, analyzed the consolidation mechanical mechanism of highway debris flow deposit. On the basis of Terzaghi one-dimensional consolidation theory, established the consolidation formula, which described the change process of excess pore water pressure, consolidation degree, settlement and compression with the c

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30

Al-Jubouri, Muhanad, and Richard P. Ray. "Hydrodynamic Modeling and Comprehensive Assessment of Pier Scour Depth and Rate Induced by Wood Debris Accumulation." Hydrology 11, no. 4 (2024): 52. http://dx.doi.org/10.3390/hydrology11040052.

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This study mainly investigates the impact of debris accumulation on scour depth and scour hole characteristics around bridge piers. Through controlled experiments with uniform sand bed material, the influence of various debris shapes (high wedge, low wedge, triangle yield, rectangular, triangle bow, and half-cylinder), upstream debris length, downstream debris extension, and debris thickness on scour depth and scour hole area and volume around the cylindrical pier were analyzed. The findings revealed that the shape and location of debris in the water column upstream of piers are key factors th

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31

Buka-Vaivade, Karina, Vanni Nicoletti, and Fabrizio Gara. "Advancing bridge resilience: a review of monitoring technologies for flood-prone infrastructure." Open Research Europe 5 (January 27, 2025): 26. https://doi.org/10.12688/openreseurope.19232.1.

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Floods pose a critical threat to bridge infrastructure, which plays an essential role in transportation networks and economic resilience. This review examines state-of-the-art Structural Health Monitoring (SHM) technologies tailored to mitigate flood risks, focusing on their real-world applications in flood-prone bridges. A central feature of this review is the extensive use of case studies, illustrating diverse SHM methods applied globally to monitor challenges such as debris accumulation, hydrodynamic forces, and scour—primary causes of bridge failures. These examples provide detailed insigh

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Buka-Vaivade, Karina, Vanni Nicoletti, and Fabrizio Gara. "Advancing bridge resilience: a review of monitoring technologies for flood-prone infrastructure." Open Research Europe 5 (March 17, 2025): 26. https://doi.org/10.12688/openreseurope.19232.2.

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Floods pose a critical threat to bridge infrastructure, which plays an essential role in transportation networks and economic resilience. This review examines state-of-the-art Structural Health Monitoring (SHM) technologies tailored to mitigate flood risks, focusing on their real-world applications in flood-prone bridges. A central feature of this review is the extensive use of case studies, illustrating diverse SHM methods applied globally to monitor challenges such as debris accumulation, hydrodynamic forces, and scour—primary causes of bridge failures. These examples provide detailed insigh

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33

Chehade, Rime, Bastien Chevalier, Fabian Dedecker, Pierre Breul, and Jean-Claude Thouret. "Effect of Boulder Size on Debris Flow Impact Pressure Using a CFD-DEM Numerical Model." Geosciences 12, no. 5 (2022): 188. http://dx.doi.org/10.3390/geosciences12050188.

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Debris flows (DFs) are dangerous events that can cause the complete destruction of buildings and infrastructure, such as bridges; DFs therefore represent a high risk to public safety in exposed areas. The impact pressures due to these flows are essentially determined by the flow height, velocity and density, but other parameters that are less often considered are also involved. We developed a numerical model to evaluate the impact pressure of mass flows, focusing on a better description of the influence of the blocks transported in these flows: the block size strongly influences the impact pre

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Chehade, Rime, Bastien Chevalier, Fabian Dedecker, Pierre Breul, and Jean-Claude Thouret. "Effect of Boulder Size on Debris Flow Impact Pressure Using a CFD-DEM Numerical Model." Geosciences 12, no. 5 (2022): 188. http://dx.doi.org/10.3390/geosciences12050188.

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Debris flows (DFs) are dangerous events that can cause the complete destruction of buildings and infrastructure, such as bridges; DFs therefore represent a high risk to public safety in exposed areas. The impact pressures due to these flows are essentially determined by the flow height, velocity and density, but other parameters that are less often considered are also involved. We developed a numerical model to evaluate the impact pressure of mass flows, focusing on a better description of the influence of the blocks transported in these flows: the block size strongly influences the impact pre

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35

Chehade, Rime, Bastien Chevalier, Fabian Dedecker, Pierre Breul, and Jean-Claude Thouret. "Effect of Boulder Size on Debris Flow Impact Pressure Using a CFD-DEM Numerical Model." Geosciences 12, no. 5 (2022): 188. http://dx.doi.org/10.3390/geosciences12050188.

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Debris flows (DFs) are dangerous events that can cause the complete destruction of buildings and infrastructure, such as bridges; DFs therefore represent a high risk to public safety in exposed areas. The impact pressures due to these flows are essentially determined by the flow height, velocity and density, but other parameters that are less often considered are also involved. We developed a numerical model to evaluate the impact pressure of mass flows, focusing on a better description of the influence of the blocks transported in these flows: the block size strongly influences the impact pre

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36

Maimun, R., Abdullah, Nizarli, and Safwan. "Experimental study on Local Scour around Bridge Pier Models generated by Flash Floods carrying Debris." IOP Conference Series: Earth and Environmental Science 1343, no. 1 (2024): 012028. http://dx.doi.org/10.1088/1755-1315/1343/1/012028.

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Abstract The analysis of local scouring around bridge piers currently is based on typical river flood discharges. However, extreme events like flash floods with high velocity and discharge, carry wooden debris that accumulates upstream of the bridge pier. This results in additional forces due to flow diversion and reduction in flow area, so impacting hydraulic structures and exacerbating the scouring process. The study objective was to examine the impact of debris transported by flash floods on the depth and distribution patterns of scouring around bridge piers. This research was conducted in

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Youssef, A. M., M. Al-Kathery, and B. Pradhan. "Assessment of impact of mass movements on the upper Tayyah valley's bridge along Shear escarpment highway, Asir region (Saudi Arabia) using remote sensing data and field investigation." Natural Hazards and Earth System Sciences Discussions 3, no. 1 (2015): 497–533. http://dx.doi.org/10.5194/nhessd-3-497-2015.

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Abstract. Escarpment highways, roads and mountainous areas in Saudi Arabia are facing landslide hazards that are frequently occurring from time to time causing considerable damage to these areas. Shear escarpment highway is located in the north of the Abha city. It is the most important escarpment highway in the area, where all the light and heavy trucks and vehicle used it as the only corridor that connects the coastal areas in the western part of the Saudi Arabia with the Asir and Najran Regions. More than 10 000 heavy trucks and vehicles use this highway every day. In the upper portion of T

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Puvanasvaran, Hari Prahlad, Xue Pin Lim, Senthil Kumar Arumugasamy, Anurita Selvarajoo, and Fang Yenn Teo. "Prediction of floodwater impacts on vehicle blockages at bridges using artificial neural network." E3S Web of Conferences 347 (2022): 04005. http://dx.doi.org/10.1051/e3sconf/202234704005.

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During extreme flood events, various debris like floating vehicles can block the bridges in urban rivers and floodplains. Blockage of vehicles can influence the floodwater hydrodynamics and potentially on the flood risk implications. Such obstructions often raise upstream water levels with back water effects, causing more water to be redirected into nearby metropolitan areas. This study attempts at evaluating artificial neural network (ANN) model in predicting the variations in floodwater depths and velocities along the channel centreline based on the changes in flowrate and distances from the

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Li, Fei, Yikang Liu, and Jian Yang. "Durability Assessment Method of Hollow Thin-Walled Bridge Piers under Rockfall Impact Based on Damage Response Surface." Sustainability 14, no. 19 (2022): 12196. http://dx.doi.org/10.3390/su141912196.

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Continuous rigid-frame bridges across valleys are often at risk of rockfalls caused by heavy rainfalls, earthquakes, and debris flow in a mountainous environment. Hollow thin-walled bridge piers (HTWBP) in valleys are exposed to the threat of impact from accidental rockfalls. In the current research, ANSYS/LS-DYNA is used to establish a high-precision rockfall-HTWBP model. The rockfall-HTWBP model is verified against a scaled impact test performed in previously published research. A mesh independence test is also performed to obtain an appropriate mesh size. Based on the rockfall-HTWBP model,

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Fedorov, A. A., D. A. Polonyankin, Iu O. Bredgauer, A. V. Linovsky, A. I. Blesman, and D. V. Postnikov. "INVESTIGATION OF DEBRIS IMPACT ON WELDING BRIDGE OCCURRENCE AND WIRE BREAKAGES DURING WEDM." Dynamics of Systems, Mechanisms and Machines 6, no. 1 (2018): 191–98. http://dx.doi.org/10.25206/2310-9793-2018-6-1-191-198.

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Majtan, Eda, Lee S. Cunningham, and Benedict D. Rogers. "Flood-Induced Hydrodynamic and Debris Impact Forces on Single-Span Masonry Arch Bridge." Journal of Hydraulic Engineering 147, no. 11 (2021): 04021043. http://dx.doi.org/10.1061/(asce)hy.1943-7900.0001932.

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Pasupuleti, Murali Krishna. "Orbital Internet Infrastructures: Assessing the Global Impact of Satellite Mega-Constellations on Connectivity, Spectrum Governance, and Space Sustainability." International Journal of Academic and Industrial Research Innovations(IJAIRI) 05, no. 07 (2025): 33–50. https://doi.org/10.62311/nesx/rpj3.

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Abstract: The rapid deployment of satellite mega-constellations by entities such as SpaceX, OneWeb, and Amazon has ushered in a new era of global internet infrastructure, with the potential to bridge longstanding digital divides. This research critically investigates the multifaceted global impact of these orbital networks, focusing on three primary domains: internet connectivity, spectrum governance, and space sustainability. A data-driven methodology is employed, incorporating regression models, predictive analytics, and comparative performance metrics (e.g., RMSE, nDCG) to analyze satellite

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Yan, Shuaixing, Siming He, Dongpo Wang, and Yong Wu. "Design and optimisation of a protective device for bridge piers against debris flow impact." Bulletin of Engineering Geology and the Environment 79, no. 7 (2020): 3321–35. http://dx.doi.org/10.1007/s10064-020-01793-z.

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Liang, Yuzhao, and Feng Xiong. "Quantification of debris flow vulnerability of typical bridge substructure based on impact force simulation." Geomatics, Natural Hazards and Risk 10, no. 1 (2019): 1839–62. http://dx.doi.org/10.1080/19475705.2019.1641564.

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Wang, Quancai, Jian Chen, Hao Wang, and Qunli Zhan. "Impact Force of Boulders Conveyed in Debris Flows on Bridge Piers and Collision Protection Measures." International Journal of Geohazards and Environment 2, no. 2 (2016): 72–81. http://dx.doi.org/10.15273/ijge.2016.02.008.

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Yan, Shuaixing, Siming He, Yu Deng, Wei Liu, Dongpo Wang, and Fei Shen. "A reliability-based approach for the impact vulnerability assessment of bridge piers subjected to debris flows." Engineering Geology 269 (May 2020): 105567. http://dx.doi.org/10.1016/j.enggeo.2020.105567.

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LU, Yuchun, Mengjie HAO, Debo ZHAO, Bin LIU, Yugang HAN, and Liang HE. "Dynamic analysis of debris flow impact on double-column bridge piers based on SPH-FEM coupling." Journal of Shenzhen University Science and Engineering 42, no. 4 (2025): 419–27. https://doi.org/10.3724/sp.j.1249.2025.04419.

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Hu, Guisheng, Ningsheng Chen, Javed Iqbal Tanoli, Yong You, and Jun Li. "Case Study of the Characteristics and Dynamic Process of July 10, 2013, Catastrophic Debris Flows in Wenchuan County, China." Earth Sciences Research Journal 20, no. 2 (2016): 1. http://dx.doi.org/10.15446/esrj.v20n2.48026.

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The Wenchuan earthquake of May 12, 2008, generated a significant amount of loose solid material that can produce devastating debris flows. In the five years since the earthquake, there have been many large-scale individual and group catastrophic debris flows that have caused lots of damage to the resettled population and the reconstruction efforts. The reconstructed towns of Yingxiu, Yinxing and Miansi have suffered debris flows and other secondary disasters in the past five years and are still not out of danger in the future. A debris-flow catastrophic event hit four towns of Wenchuan County

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Zheng, Guoxiong, Martin Mergili, Adam Emmer, et al. "The 2020 glacial lake outburst flood at Jinwuco, Tibet: causes, impacts, and implications for hazard and risk assessment." Cryosphere 15, no. 7 (2021): 3159–80. http://dx.doi.org/10.5194/tc-15-3159-2021.

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Abstract. We analyze and reconstruct a recent glacial lake outburst flood (GLOF) process chain on 26 June 2020, involving the moraine-dammed proglacial lake – Jinwuco (30.356∘ N, 93.631∘ E) in eastern Nyainqentanglha, Tibet, China. Satellite images reveal that from 1965 to 2020, the surface area of Jinwuco has expanded by 0.2 km2 (+56 %) to 0.56 km2 and subsequently decreased to 0.26 km2 (−54 %) after the GLOF. Estimates based on topographic reconstruction and sets of published empirical relationships indicate that the GLOF had a volume of 10 million cubic meters, an average breach time of 0.6

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Cheng, Min Tai. "Stability Analysis of Scour around Exposed Bridge Pier." Advanced Materials Research 838-841 (November 2013): 1108–11. http://dx.doi.org/10.4028/www.scientific.net/amr.838-841.1108.

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Instability exposed foundation due to scour around bridge pier caused displacement should be noted that erosion and destruction often occurs subsidence of river-bed soil in bearing layer changed place under water pressure bound to tilt the piers of the bridge, which can then produce another phase of secondary displacement, that is, if in the longer term forces such as earthquakes or floods overall resulting short and long term in unstable state. This study applied finite element model Plaxis-2D to analyze exposed foundation on bridge pier scour in 200-year return flood peak flow, involving con

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