FBG Strain Monitoring of a Road Structure Reinforced with a Geosynthetic Mattress in Cases of Subsoil Deformation in Mining Activity Areas

Juraszek, Janusz; Gwóźdź-Lasoń, Monika; Logoń, Dominik

doi:10.3390/ma14071709

Cited by 10 publications

(13 citation statements)

References 17 publications

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“…Because different synthetic materials are used for the production of geogrids (polyester, polypropylene, polyamide, polyethylene), the fixation of FBG sensors requires some practical training and testing. However, the successful application of optical sensors installed on geogrids was also confirmed by similar research [ 23 , 34 ]. If conditions require axial strains of the geosynthetic reinforcement higher than 2.5%, it will be necessary to look for an alternative to the conventional optical fiber [ 6 , 31 , 32 ].…”

Section: Discussionsupporting

confidence: 56%

Measurement of Axial Strain of Geogrid by Optical Sensors

Drusa

Kais²,

Dubovan

et al. 2021

Sensors

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In recent years, the technology of optical fibers has rapidly gained ground in many areas of science and industry, including the construction industry. In this article, the technology of optical fibers based on a fiber Bragg grating (FBG) was used to determine tensile forces acting in a basal reinforcement of a scaled down physical model, which included piled embankment and basal reinforcement. Installing FBG sensors on the geogrid made monitoring of axial strains possible, thus allowing determination of the behavior of the basal reinforcement of the piled embankment. On the basis of three tests performed on the physical model, numerical model calibration with the physical model was carried out using the software PLAXIS 3D Tunnel 2.4. The results showed accurate predictions, especially for the low and middle part of the measured deformations where the numerical analysis proposed a solution that can be considered as safe. Installing FBG sensors on biaxial geogrids was a bold idea that was not easy to implement. However, other possibilities have been successfully tested, such as high-frequency measurements of the response of reinforced soil structure under dynamic loading.

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Section: Discussionsupporting

confidence: 56%

Measurement of Axial Strain of Geogrid by Optical Sensors

Drusa

Kais²,

Dubovan

et al. 2021

Sensors

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“…The paper by [ 61 ] presents an implementation of purpose-designed optical fiber Bragg grating (FBG) sensors intended for the monitoring of real values of strain in reinforced road structures in areas of mining activity. Two field test stations are described.…”

Section: Description Of the Articles Presented In The Issuementioning

confidence: 99%

“…This may be the basis for an analysis of the mining activity effect on right-of-way structures during precise strain measurements of a geogrid using FBG sensors embedded within it. The analysis of the results of measurements in the aspect of forecasted and actual static and dynamic effects of mining on the stability of a reinforced road structure is of key importance for detailed management of road investment, and for the appropriate repair and modernization management of the road structure [ 61 ].…”

Section: Description Of the Articles Presented In The Issuementioning

confidence: 99%

Testing of Materials and Elements in Civil Engineering

Schabowicz

2021

Materials

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This issue is proposed and organized as a means to present recent developments in the field of testing of materials in civil engineering. For this reason, the articles highlighted in this issue should relate to different aspects of testing of different materials in civil engineering, from building materials and elements to building structures. The current trend in the development of materials testing in civil engineering is mainly concerned with the detection of flaws and defects in elements and structures using destructive, semi-destructive, and nondestructive testing. The trend, as in medicine, is toward designing test equipment that allows one to obtain a picture of the inside of the tested element and materials. Very interesting results with significance for building practices of testing of materials and elements in civil engineering were obtained.

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“…The risk of discontinuous deformations was eliminated here by filling the voids and relaxation zones, via the borehole injection method, to seal and strengthen the rock mass, and then geogrids were used. Among the works related to the use of geogrids in securing roads against the effects of mining exploitation, the following works should be mentioned: [22][23][24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

The Use of Geomaterials to Restore the Utility Value of Post-Mining Areas

et al. 2022

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Post-mining deformations that occur on the surface pose a significant threat to natural environments and urbanized areas. Preventing the effects of deformation is a significant challenge for specialists in geotechnical and civil engineering. Geomaterials, such as geosynthetics or geopolymers, could minimize the damage that occurs. The first section of the article explores the securing of an area, strengthening the rock mass with geosynthetic materials. We provide descriptions of the properties of these materials and the method surrounding their introduction into the soil. The second section presents the research problem, i.e., we describe the damage caused by underground mining. In the last section, we propose a solution for securing the ground with the use of geogrids and geopolymer injections into the rock mass. The analyses led us to conclude that an area subjected to mining influences may be strengthened by the use of geosynthetic materials. The use of geosynthetics in a mining area is a well-known topic, but the additional use of geopolymers may be innovative. Research is still being conducted on the use of geopolymers to fill post-mining voids, in combination with geosynthetics.

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FBG Strain Monitoring of a Road Structure Reinforced with a Geosynthetic Mattress in Cases of Subsoil Deformation in Mining Activity Areas

Cited by 10 publications

References 17 publications

Measurement of Axial Strain of Geogrid by Optical Sensors

Measurement of Axial Strain of Geogrid by Optical Sensors

Testing of Materials and Elements in Civil Engineering

The Use of Geomaterials to Restore the Utility Value of Post-Mining Areas

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