Case Study of Damage on Masonry Buildings Produced by Tunneling Induced Settlements

Camós, Carles; Molins, Climent; Arnau, Oriol

doi:10.1080/15583058.2012.704479

Cited by 31 publications

(24 citation statements)

References 9 publications

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“…Furthermore, the extent to which horizontal ground strains are transferred to buildings is still debated. As a consequence, predictions based on these relative stiffness methods might differ and, in certain scenarios, can lead to underestimation of building risk to tunnel excavation (Camós et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Influence of building characteristics on tunnelling-induced ground movements

Ritter

Giardina²,

DeJong

et al. 2017

Géotechnique

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The interaction mechanisms between surface structures and tunnelling-induced ground movements were investigated through centrifuge testing. Although numerous studies have considered this soil-structure interaction problem, previous experiments have neglected important building characteristics and field data inherently contain numerous uncertainties related to the soil, the structure and the tunnelling procedure. Consequently, the interpretation of results and validation of computational models can be problematic. In this study, tunnelling beneath three-dimensional printed structural models with varying building characteristics (i.e. position, length and facade openings) was simulated in a centrifuge. The experimental results demonstrate that tunnelling induces soil displacements at the surface and subsurface that are notably altered due to nearby structures. Specifically, different amounts of vertical and horizontal ground movements, soil dilation and widening of settlement troughs were observed. Building distortions and horizontal building strains were also affected by the relative position of the building to the tunnel, the building length and the area of facade openings. The experimental results provide important data for the evaluation of current design methods and verification of computational models.

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Section: Introductionmentioning

confidence: 99%

Influence of building characteristics on tunnelling-induced ground movements

Ritter

Giardina²,

DeJong

et al. 2017

Géotechnique

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“…While in the specialized literature there are numerous in-depth studies on the numerical modelling of the influence of tunnel excavation on surface buildings [22][23][24][25][26][27][28][29][30][31][32], in the case of underground mining of deposits of useful mineral substances, these studies are less frequent [3,[33][34][35]. Therefore, we consider that this study has a certain contribution to the elucidation of the behaviour of buildings under the influence of coal seam mining by means of the longwall faces, especially by analyzing the development of the state of stresses in the structural elements of the buildings.…”

Section: Introductionmentioning

confidence: 99%

“…These constraints have created special problems, both in terms of model construction and calculations. Therefore, the closest numerical models known in the literature are those relating to buildings under the influence of tunnels (excavations with a small volume of the order of thousands of m 3 ), which involve models with much smaller dimensions (with a volume of the order of hundreds of thousands of m 3 ) and implicitly require less important computing resources [20][21][22][23][24][25][26][27][28][29][30]. Therefore, this numerical modelling analysis, which is specific to civil engineering, has allowed consideration of many details regarding the construction of models and constitutive laws applied to rocks and materials, which are much more complex than in the case of mining engineering problems (as they are treated in this article).…”

Section: Introductionmentioning

confidence: 99%

Finite Element Analysis of the State of Stresses on the Structures of Buildings Influenced by Underground Mining of Hard Coal Seams in the Jiu Valley Basin (Romania)

et al. 2020

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The hard coal seams in the Jiu Valley mining basin have been mined with different mining methods and technologies, including with the complete caving of the surrounding rocks and with top coal caving. These mining systems have led to the degradation of the ground surface by producing subsidence of the land, ranging from a few meters up to tens of meters, in the areas with thick coal seams with high dips. When the limits of the main safety pillars are accidentally exceeded whilst mining, buildings situated either below the ground or on the surface are affected. In the future, the possibility exists of mining some of the very large reserves that are immobilized in the main safety pillars, where the gentle dip seams are stored. In consideration of the above, in order to study the behaviour of typical buildings that are under the influence of underground mining and to develop a model of the stress state in the structural elements of the structures, finite element modelling is used. As such, several modelled buildings with one, two, and three levels were generated, as well as buildings with two levels and with different lengths. These buildings were built of reinforced concrete panels or brick masonry and were subjected to the mining influence of a panel specific to the mines in the Jiu Valley basin, sequentially extracted with a longwall coal face method at different operating heights, with the use of roof control by caving of rocks and with top coal caving methods. Following the analysis of the major principal (tensile) stresses and minor principal (compressive) stresses, a series of conclusions regarding the behaviour of these buildings that are under the influence of the underground mining is revealed. In this context, it was concluded that the value and location of the stresses developed in the structure of the buildings depend mainly on the extension of the panel and the volume of the goaf, the relative position of the building in respect to the coal face line, and the length of the building.

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“…While foundation settlement can be predicted at the design stage (Griffiths and Fenton, 2009;Mohamed et al, 2013), often excessive and uncalculated settlements may occur during the lifespan of the structure. This is mainly due to changes in the loading and environmental conditions, to include; new construction in the neighboring area (Zhu et al, 2012;Anastasopoulos, 2013;Camos et al, 2014), deep excavation (Laefer et al, 2009;Son and Cording, 2011), excessive flooding, or earthquakes (Bray and Dashti, 2014).…”

Section: Introductionmentioning

confidence: 99%

High-rise building subjected to excessive settlement of its foundation: a case study

Lin

Hanna

Sinha

et al. 2017

IJSI

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Purpose Differential settlement between foundations’ elements induces additional stresses in the structural elements. In general, the amount of settlement that a structure can undergo without distress is large, provided that the structure settles uniformly. However, based on the fact that the soil under the foundation may not be uniform in nature and the loads transferred from the superstructure to the foundation are variable, differential settlements between the foundation elements are expected. The purpose of this paper is to evaluate the stresses induced in a typical ten-storey reinforced concrete building subjected to excessive differential settlement. Design/methodology/approach In this investigation, excessive differential settlement up to 75 mm is assigned to the center column on the ground floor that represents the most critical case. A three-dimensional finite element model is developed to perform structural analysis using the software SAP2000, and the nonlinear static pushover analysis is performed. Findings The results of this study show that the building behaves elastically up to 25 mm of differential settlement between its foundation elements, which agrees well with the recommendation given in design manuals. Beyond this value, significant inelastic response is observed in the lower floors and decreases gradually in the higher floors and accordingly, some members have consumed the factor of safety and are in the verge of failure. Originality/value Based on the results of this study, recommendations are made for better communication between the structure and the geotechnical engineers to either limit the differential settlements or incorporate these additional stresses during the design stage of the building. Furthermore, the results of the study can be used to recommend to building codes or design manuals to add a load component due to the anticipated differential settlements of the foundation.

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Case Study of Damage on Masonry Buildings Produced by Tunneling Induced Settlements

Cited by 31 publications

References 9 publications

Influence of building characteristics on tunnelling-induced ground movements

Influence of building characteristics on tunnelling-induced ground movements

Finite Element Analysis of the State of Stresses on the Structures of Buildings Influenced by Underground Mining of Hard Coal Seams in the Jiu Valley Basin (Romania)

High-rise building subjected to excessive settlement of its foundation: a case study

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