Application of Structure Monitoring Systems to the Assessment of the Behaviour of Bridges in Mining Areas

Parkasiewicz, B.; Kadela, Marta; Bętkowski, Piotr; Sieńko, Rafał; Bednarski, Łukasz

doi:10.1088/1757-899x/245/3/032018

Cited by 21 publications

(11 citation statements)

References 2 publications

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“…[12]) and displacements of selected bridge elements (e.g. [13], [14] ). Displacements associated with the loss of stability or washing away of the riverbed in the initial phase increase slowly, monitoring allows identifying the displacements and rotations of the bridge elements before the bridge will be damaged.…”

Section: Summary and Additional Remarksmentioning

confidence: 99%

Adapting of bridges at mining area to the lowered bed of rivers

Bętkowski

2019

E3S Web Conf.

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This article describes technical problems concerning bridges, dangers that arise when the bottom of the river bed is lowered during the liquidation of the floodplains. These floodplains arise as a result of terrain subsidence caused by mining exploitation. In urban areas with developed building and road infrastructure, bayous can cause significant social and material damages. One of manners of the floodplain liquidation or long-lasting lowering the water table is lowering the bottom of river channel on the leakage from bayou. Lowering the river channel can concern the section of few kilometres even long. Lowering the riverbed by dredging or considerable deepening generally does not cause important problems. Significant technical problems are generated by bridge objects. In the case of bridges, it is necessary to ensure the stability of bridgeheads, protect foundations from washing away and undermining. It is necessary to design channel reinforcement so that significant horizontal forces do not occur due to removing the part of the soil-ground from the riverbed (lack of passive ground pressure). Several technical solutions of adapting existing bridges to the lowered river bed for different structures are described.

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Section: Summary and Additional Remarksmentioning

confidence: 99%

Adapting of bridges at mining area to the lowered bed of rivers

Bętkowski

2019

E3S Web Conf.

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“…Mining exploitation has a significant impact, e.g. by stretching/squeezing expansion joints, introducing significant displacements into bearings [9,12,13,14,15,16,17]. The mining turning and tilting of abutments may lead to cracking on the abutments and spans [5,6,9,11,12,14,15].…”

Section: Technical Conditions and Resistance To Mining Influencesmentioning

confidence: 99%

“…every hour). There are several pilot remote monitoring systems installed in Poland on bridge structures on mining areas [16,17]. Bridge administration has access to measurements perform by these systems, but the lack of appropriate digital models of bridges, force manual data processing.…”

Section: Acquiring Information From Monitoring Systemsmentioning

confidence: 99%

Modeling of information on the impact of mining exploitation on bridge objects in BIM

Bętkowski

2018

E3S Web of Conf.

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The article discusses the advantages of BIM (Building Information Modeling) technology in the management of bridge infrastructure on mining areas. The article shows the problems with information flow in the case of bridge objects located on mining areas and the advantages of proper information management, e.g. the possibility of automatic monitoring of structures, improvement of safety, optimization of maintenance activities, cost reduction of damage removal and preventive actions, improvement of atmosphere for mining exploitation, improvement of the relationship between the manager of the bridge and the mine. Traditional model of managing bridge objects on mining areas has many disadvantages, which are discussed in this article. These disadvantages include among others: duplication of information about the object, lack of correlation in investments due to lack of information flow between bridge manager and mine, limited assessment possibilities of damage propagation on technical condition and construction resistance to mining influences.

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“…Vibrating wire sensors have applications in the technical state control of bridges [7,8], ground anchor systems [9], tunnels, large scale buildings [10,11,12], and transport infrastructure [13]. The technique of vibrating wire measurements has become an important branch of the metrology applied in measurements of elements’ displacements relative to each other, deformations, stresses [14], changes of fugue cleavages, changes in the tilt of building objects, the subsidence of pillars, the ground pressure on structure elements, etc.…”

Section: Introductionmentioning

confidence: 99%

Measurements of Dynamic Deformations of Building Structures by Applying Wire Sensors

Cieplok

Bednarski

2019

Sensors

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Measurements of deformations by means of vibrating wire sensors are very important in the monitoring of building structures. These types of sensors are characterized by a high resistance to environmental conditions, long time of measurement stability, and a possibility to use long electric cables with a solid encasement in concrete. Vibrating wire sensors are mainly used for measuring stable or slowly changing deformations, however applications of these sensors for measuring time-variable deformations are becoming popular. New solutions generate new problems, which in case of vibrating wire sensors are mainly related to the operational stability of the systems exciting wire vibrations. The structure of such sensors and the length of the electric cables, which can reach a few kilometers, have an essential influence on their operations. This paper undertakes the task of determining the influence of the electric cables length on the proper operation of the measurement system and provides advice for improvements of its measurement possibilities. The subject of investigation constitutes a measurement system based on a self-exciting impulse exciter, for which the impedance of the electric cables and of the vibrating wire sensor are the most essential parameters. A mathematical model of this system, experimental verification of the model, and the results of theoretical analyses and measurement tests for electric cables of various lengths are presented in this paper.

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Application of Structure Monitoring Systems to the Assessment of the Behaviour of Bridges in Mining Areas

Cited by 21 publications

References 2 publications

Adapting of bridges at mining area to the lowered bed of rivers

Adapting of bridges at mining area to the lowered bed of rivers

Modeling of information on the impact of mining exploitation on bridge objects in BIM

Measurements of Dynamic Deformations of Building Structures by Applying Wire Sensors

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