Fiber-Optic Interferometric Sensor for Dynamic Impact Measurement of Transport Trucks

Stolárik, Martin; Nedoma, Jan

doi:10.4028/www.scientific.net/jera.42.34

Cited by 3 publications

(4 citation statements)

References 32 publications

(29 reference statements)

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“…In recent years, modern progressive technologies (such as Micro-Electro-Mechanical Systems (MEMS) or fiber-optic technologies) are also used to measure vibration on structures or on rock mass in civil engineering applications [18,39].…”

Section: Measuring Instrumentationmentioning

confidence: 99%

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Ground-Borne Vibration Due to Construction Works with Respect to Brownfield Areas

2019

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Ground-borne vibration caused by mechanized construction works is the most common problem in built-up areas in general. In post-industrial cities, there are many building facilities in the category of brownfields. Parts of these buildings are often technically and culturally valuable buildings with varying degrees of decay. These are very susceptible to vibrations. The revitalization of brownfield areas employs a wide range of works and practices, among which are those that have adverse effects in the form of vibrations and shocks. This paper presents a theoretical study and original results concerning the seismic load on historical and dilapidated buildings in brownfield areas due to the ground-borne vibration caused by mechanized construction works. Original data from seismic measurements are related to the post-industrial Ostrava agglomeration, in the area of one of the biggest successfully revitalized brownfields in Central Europe. All measurements were evaluated in terms of both amplitude and frequency. The results of all measurements were processed in the form of attenuation curves.

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Section: Measuring Instrumentationmentioning

confidence: 99%

“…These are not the only sources of vibration that can have a negative impact on brownfields. As shown by a number of studies, the most common seismic load on construction sites is road transport [16][17][18], along with railways [19][20][21][22] and trams and subways in urban centers [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Ground-Borne Vibration Due to Construction Works with Respect to Brownfield Areas

2019

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“…This type of sensor [15][16][17][18] is often based on different types of fiber-optic interferometers. Due to their high sensitivity, interferometric sensors can also be placed non-destructively next to a road, as described by the authors of [19][20][21]. It monitors basic parameters, such as traffic density and vehicle speed.…”

Section: Fiber Optic and Optical Sensorsmentioning

confidence: 99%

Portable Optical Fiber Bragg Grating Sensor for Monitoring Traffic Density

et al. 2019

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The paper examines the development of a portable sensor strip with fiber optic Bragg grating for monitoring urban traffic density up to 80 kph. It contains a 2.5-m-long and a 2-cm-high sensor created from a combination of silicone addition rubber (bicomponent addition silicone rubber) and Bragg grating placed inside a carbon tube. The design of the portable sensor permits traffic density and cars crossings to be monitored and detected in a single lane. The functionality of the sensor was verified in real traffic; the results of this study are based on the detection of 1518 vehicles of different types and sizes. According to the measurements, the sensor is characterized by a high detection rate of 98.946%.

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“…The presented comparative study builds on previous research into the suitability of optical fiber devices for vibration monitoring from various sources of dynamic loads. An experimentally developed interferometric sensor was used to measure rock mass dynamic response, whose applicability already has been verified for similar dynamic tasks [17][18][19]. A standard seismic station was then used to compare the results.…”

Section: Introductionmentioning

confidence: 99%

Alternative Approaches to Measurement of Ground Vibrations Due to the Vibratory Roller: A Pilot Study

Nedoma

Stolárik

Kepák

et al. 2019

Sensors

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At present, one of the primary tasks of the construction industry is to build transport infrastructure. This concerns both the construction of new bypasses of towns and the repair of existing roads, which are damaged by congestion, especially by freight transport. Whether it is a new building or a reconstruction, it is always very important to choose a suitable method of subsoil treatment. One of the most commonly used methods for soil treatment is currently compaction using vibratory rollers. This method is very effective both in terms of results and due to its low financial demands compared to other methods. Vibration is transmitted to the surrounding rock environment when compacting the subsoil using vibratory rollers. Although the intensity of these vibrations is not as pronounced as in other methods of subsoil treatment, such vibrations can have a significant effect, for example during compaction in urban areas or in an area with the presence of historical objects. Therefore, it is very advisable to monitor the effect of these vibrations on the environment during construction. This paper brings an original experimental comparative study of standard seismic instrumentation with a developed interferometric sensor for the field of monitoring vibrations generated during compaction of subsoil using vibrating rollers. The paper presents time and frequency domain results, as well as attenuation curves, which represent real attenuation of vibrations in a given rock environment. The results presented here show that a system operating on a different physical principle from the one used at present has the potential to replace the existing, very expensive, seismic equipment.

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Fiber-Optic Interferometric Sensor for Dynamic Impact Measurement of Transport Trucks

Cited by 3 publications

References 32 publications

Ground-Borne Vibration Due to Construction Works with Respect to Brownfield Areas

Ground-Borne Vibration Due to Construction Works with Respect to Brownfield Areas

Portable Optical Fiber Bragg Grating Sensor for Monitoring Traffic Density

Alternative Approaches to Measurement of Ground Vibrations Due to the Vibratory Roller: A Pilot Study

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