A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Numerical Assessment of Microtunnelling Induced Pavement Settlement
https://orcid.org/0000-0001-9685-5641
https://orcid.org/0000-0002-1760-9838
Abstract There is an increased demand on the use of microtunnelling for the installation of new buried pipelines. However, the effect of microtunnelling on the performance of pavements is poorly understood. Hence, this paper aims at addressing this gap in knowledge. A robust three-dimensional finite element model that considers the combined influence of the traffic load and microtunnelling has been developed to study the microtunnelling induced pavement settlement. The influence of the stress level and volume change on the behavior of the subgrade, subbase, and base has been considered using the appropriate soil constitutive model. In addition, a parametric study has been carried out to examine the effect of the presence of the traffic load, backfill height, thickness and stiffness of the surface layer, the diameter of the microtunnelling, and shear strength of the subgrade soil on the microtunnelling induced pavement settlement. It has been found that the traffic load has a remarkable influence on the trend of the relationship between the maximum microtunnelling induced pavement settlement and the backfill height. In addition, the percentage increase of settlement due to the presence of the traffic load ranges between 60 and 674%. Moreover, increasing the diameter of the microtunnelling dramatically rises the settlement of the pavement. Furthermore, the stiffness and thickness of the surface layer were also found to affect the microtunnelling induced pavement settlement. Thus, it is necessary to consider the effect of traffic load, microtunnelling diameter, and backfill height in the assessment of the influence of the microtunneling on the response of the pavement. Importantly, the reported results are beneficial to designers working on the assessment of the microtunnelling induced pavement settlement.
Numerical Assessment of Microtunnelling Induced Pavement Settlement
https://orcid.org/0000-0001-9685-5641
https://orcid.org/0000-0002-1760-9838
Abstract There is an increased demand on the use of microtunnelling for the installation of new buried pipelines. However, the effect of microtunnelling on the performance of pavements is poorly understood. Hence, this paper aims at addressing this gap in knowledge. A robust three-dimensional finite element model that considers the combined influence of the traffic load and microtunnelling has been developed to study the microtunnelling induced pavement settlement. The influence of the stress level and volume change on the behavior of the subgrade, subbase, and base has been considered using the appropriate soil constitutive model. In addition, a parametric study has been carried out to examine the effect of the presence of the traffic load, backfill height, thickness and stiffness of the surface layer, the diameter of the microtunnelling, and shear strength of the subgrade soil on the microtunnelling induced pavement settlement. It has been found that the traffic load has a remarkable influence on the trend of the relationship between the maximum microtunnelling induced pavement settlement and the backfill height. In addition, the percentage increase of settlement due to the presence of the traffic load ranges between 60 and 674%. Moreover, increasing the diameter of the microtunnelling dramatically rises the settlement of the pavement. Furthermore, the stiffness and thickness of the surface layer were also found to affect the microtunnelling induced pavement settlement. Thus, it is necessary to consider the effect of traffic load, microtunnelling diameter, and backfill height in the assessment of the influence of the microtunneling on the response of the pavement. Importantly, the reported results are beneficial to designers working on the assessment of the microtunnelling induced pavement settlement.
Numerical Assessment of Microtunnelling Induced Pavement Settlement
https://orcid.org/0000-0001-9685-5641
https://orcid.org/0000-0002-1760-9838
Abstract There is an increased demand on the use of microtunnelling for the installation of new buried pipelines. However, the effect of microtunnelling on the performance of pavements is poorly understood. Hence, this paper aims at addressing this gap in knowledge. A robust three-dimensional finite element model that considers the combined influence of the traffic load and microtunnelling has been developed to study the microtunnelling induced pavement settlement. The influence of the stress level and volume change on the behavior of the subgrade, subbase, and base has been considered using the appropriate soil constitutive model. In addition, a parametric study has been carried out to examine the effect of the presence of the traffic load, backfill height, thickness and stiffness of the surface layer, the diameter of the microtunnelling, and shear strength of the subgrade soil on the microtunnelling induced pavement settlement. It has been found that the traffic load has a remarkable influence on the trend of the relationship between the maximum microtunnelling induced pavement settlement and the backfill height. In addition, the percentage increase of settlement due to the presence of the traffic load ranges between 60 and 674%. Moreover, increasing the diameter of the microtunnelling dramatically rises the settlement of the pavement. Furthermore, the stiffness and thickness of the surface layer were also found to affect the microtunnelling induced pavement settlement. Thus, it is necessary to consider the effect of traffic load, microtunnelling diameter, and backfill height in the assessment of the influence of the microtunneling on the response of the pavement. Importantly, the reported results are beneficial to designers working on the assessment of the microtunnelling induced pavement settlement.
Numerical Assessment of Microtunnelling Induced Pavement Settlement
Alzabeebee, Saif (author) / Keawsawasvong, Suraparb (author)
2022
Article (Journal)
Electronic Resource
English
BKL:
57.00$jBergbau: Allgemeines
/
38.58
Geomechanik
/
57.00
Bergbau: Allgemeines
/
56.20
Ingenieurgeologie, Bodenmechanik
/
38.58$jGeomechanik
/
56.20$jIngenieurgeologie$jBodenmechanik
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