A scenario-based risk framework for determining consequences of different failure modes of earth dams

Cleary, Paul W.; Prakash, Mahesh; Mead, Stuart; Lemiale, Vincent; Robinson, Gwen; Ye, Fanghong; Ouyang, Sida; Tang, Xinming

doi:10.1007/s11069-014-1379-x

Cited by 26 publications

(15 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Quebrada Dahlia is a small tributary of Quebrada Mariano Melgar-Huarangal ( Fig. 1), which is situated in the Mariano Melgar District on the north-easternmost fan of Arequipa, shown in detail in A three-dimensional reconstruction of the terrain and buildings along Quebrada Dahlia was created using the photogrammetry method described in Mead et al (2015). The generated terrain model contained 1.4 million points with a surface density of between 150 and 750 points per m 2 , a GNSS-D survey undertaken in October 2014 115…”

Section: Case Study: Quebrada Dahlia Arequipa Perumentioning

confidence: 99%

“…It is well suited to modelling free surface fluid flows, predicting and tracking the motion of dynamic objects within the flow (e.g. Cleary et al, 2012;Prakash et al, 2014;Cleary et al, 2015), and modelling complex flooding scenarios involving interactions with buildings (e.g. 245 Mead et al, 2015).…”

Section: Implementation In Smoothed Particle Hydrodynamics (Sph) 240mentioning

confidence: 99%

“…Cleary et al, 2012;Prakash et al, 2014;Cleary et al, 2015), and modelling complex flooding scenarios involving interactions with buildings (e.g. 245 Mead et al, 2015). The SPH method used here is described in Cleary and Prakash (2004) and Prakash et al (2014).…”

Section: Implementation In Smoothed Particle Hydrodynamics (Sph) 240mentioning

confidence: 99%

“…We use the same SPH particle spacing and terrain resolution (12.5 cm) of previous simulations by Mead et al (2015). This resolution provided the best balance between computational time and resolution of fine scale features 270 that can affect the flows.…”

Section: Lahar Simulations 265mentioning

confidence: 99%

See 3 more Smart Citations

Quantifying lahar damage using numerical modelling

Mead

Magill

Lemiale

et al. 2016

Preprint

Self Cite

View full text Add to dashboard Cite

Abstract. Lahars are volcanic flows containing a mixture of fluid and sediment that have caused significant damage to buildings, critical infrastructure and human life. The extent of this damage is controlled by properties of the lahar, location of elements at risk and susceptibility of these elements to the lahar. Here we focus on understanding lahar-induced building damage. Quantification of building damage can be difficult due to the complexity of lahar behaviour (hazard), uncertainty in number and type of buildings exposed to the lahar (exposure) and the uncertain susceptibility of buildings to lahar induced damage (vulnerability). In this paper, we quantify and examine the relative importance of lahar hazard, exposure and vulnerability in determining building damage with reference to a case study in the city of Arequipa, Peru. Numerical modelling is used to investigate lahar properties important in determining the inundation area and forces applied to buildings. Building vulnerability is quantified through the development of critical depth–pressure curves based on the ultimate bending moment of masonry structures. In the case study area, results suggest that building strength plays a minor role in determining overall building losses in comparison to the effects of building exposure and lahar hazard properties such as hydraulic characteristics of the flow.

show abstract

Section: Case Study: Quebrada Dahlia Arequipa Perumentioning

confidence: 99%

Section: Implementation In Smoothed Particle Hydrodynamics (Sph) 240mentioning

confidence: 99%

Section: Implementation In Smoothed Particle Hydrodynamics (Sph) 240mentioning

confidence: 99%

Section: Lahar Simulations 265mentioning

confidence: 99%

See 2 more Smart Citations

Quantifying lahar damage using numerical modelling

Mead

Magill

Lemiale

et al. 2016

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…If a storage reservoir is situated in the path of such flood waves, there is a risk of dam overtopping due to insufficient spillway discharge [5][6][7][8]. According to statistics, the biggest risk for earth dams is flooding, and 34% of earth dam disasters in the world have been caused by breaching of the dam body because of overtopping [8][9][10][11]. A flood wave caused by the failure of a large dam is usually of higher velocity and discharge than a natural flood wave, meaning that such waves carry a higher cost, both financially and in terms of risk to human life.…”

Section: Introductionmentioning

confidence: 99%

Assessing Reservoir Operating Requirements in Changing Hydrological Conditions: A Case Study of Mietków Dam

Kostecki¹,

Machajski²

2018

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

Climate change in recent years has caused considerable intensification of rainfall, and as a consequence an increase in flood waves flow rate. This article presents the verifying method of the dam overtopping risk under conditions of enlarged volumetric flood flow rates inflowing the storage reservoir. Values of the flow rate peaks were determined on the hydrological observations basis. The course of the hypothetical flood wave hydrograph was determined on the normalization and averaging basis of the 6 historical flood wave hydrographs. The flood routing analysis through the reservoir was numerically performed, with the assumptions of Puls's method, for 6 scenarios with 2 flood flow rates and for 3 initial water levels in the reservoir. On the obtained results basis the dam overtopping hazard level was determined, and the necessity for reservoir water management changes was pointed out.

show abstract