Evaluation of Shape Array sensors to quantify the spatial distribution and seasonal rate of track settlement

Yan, Ruobing; Take, W. Andy; Hoult, Neil A.; Meehan, Jonathan; Levesque, Christiane

doi:10.1016/j.trgeo.2020.100487

Cited by 5 publications

(4 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Earlier research indicates that the load distribution within rockfll dams is nonuniform, similar to that of the loads of train tracks, leading to rheological soil deformation. Tis may cause inconsistent pressure on embedded SAAs and continuing plastic deformation of the soil mass, potentially changing the observation data's point or damaging the instrument [14,32].…”

Section: Analysis Of Saa Data In the Rockfll Dam Te In-r11mentioning

confidence: 99%

“…Subsequently, Wang et al successfully applied SAA to seabed landslide monitoring and successfully established a system that could record hydrodynamic data and monitor seabed landslide deformation [13]. Yan et al used SAA techniques to capture temporal variations in distributed track settlement profles, analyze track safety issues, and inform track maintenance plans [14]. In our study, we applied SAA to monitor a 300-meter high rockfll dam to reduce the infuence of burial on construction and provide more deformation monitoring points.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Use of Shape Accel Array for Deformation Monitoring and Parameter Inversion of a 300 m Ultrahigh Rockfill Dam

Zhang

et al. 2023

Structural Control and Health Monitoring

View full text Add to dashboard Cite

The global construction of rockfill dams has now surpassed the 300 m height level. Despite great achievements in dam design and construction, monitoring techniques have lagged behind the development of high rockfill dams. Existing deformation monitoring techniques are ill-suited to the high earth and water pressures, and extended monitoring periods are required for ultrahigh rockfill dams. This study introduces, for the first time, the use of a shape accel array (SAA) to monitor internal displacement in a 300 m high earth core rockfill dam. The SAA employs a rope-like array of capacitive MEMS accelerometers for deformation measurement. Compared to conventional monitoring techniques, SAA is a data-intensive monitoring technique. Based on the intensive data obtained from SAA, we employed a parameter inversion method, utilizing multiobjective optimization algorithm, the nondominated sorting genetic algorithm-III (NSGA-III), to inverse the constitutive model parameters of the rockfill dam. The multiobjective parameter inversion method maximizes the use of multisource monitoring data for predicting rockfill dam deformation.

show abstract

Section: Analysis Of Saa Data In the Rockfll Dam Te In-r11mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Use of Shape Accel Array for Deformation Monitoring and Parameter Inversion of a 300 m Ultrahigh Rockfill Dam

Zhang

et al. 2023

Structural Control and Health Monitoring

View full text Add to dashboard Cite

show abstract

“…Each sensor is connected to a wireless data logger for realtime and remote sensing operation. The segments are connected by a flexible joint that allows for bending and are usually installed within a PVC access tube [81,82]. The SAA provides a low cost, waterproof and robust system with the possibility of measuring differential tilt and acceleration at intervals of 0.30-0.50 m to a depth up to 100 m [12,14,83].…”

Section: Tilt Sensingmentioning

confidence: 99%

“…The potential capability of SAA systems have been studied in recent years [12,14,[81][82][83][84] and full-scale laboratory tests over at least 1 year have demonstrated these systems can precisely measure accelerations and ground deformations in three dimensions with an accuracy ±1.5 mm per 30 m reliably [12,14,83].…”

Section: Tilt Sensingmentioning

confidence: 99%

MEMS technology and applications in geotechnical monitoring: a review

Barzegar

Blanks²,

Sainsbury

et al. 2022

Meas. Sci. Technol.

View full text Add to dashboard Cite

In-situ monitoring is an important aspect of geotechnical projects to ensure safety and optimise design measures. However, existing conventional monitoring instruments are limited in their accuracy, durability, complex and high cost of installation and requirement for ongoing real time measurement. Advancements in sensing technology in recent years have created a unique prospect for geotechnical monitoring to overcome some of those limitations. For this reason, micro-electro-mechanical system (MEMS) technology has gained popularity for geotechnical monitoring. MEMS devices combine both mechanical and electrical components to convert environment system stimuli to electrical signals. MEMS-based sensors provide advantages to traditional sensors in that they are millimetre to micron sized and sufficiently inexpensive to be ubiquitously distributed within an environment or structure. This ensures that the monitoring of the in-situ system goes beyond discrete point data but provides an accurate assessment of the entire structures response. The capability to operate with wireless technology makes MEMS microsensors even more desirable in geotechnical monitoring where dynamic changes in heterogeneous materials at great depth and over large areas are expected. Many of these locations are remote or hazardous to access directly and are thus a target for MEMS development. This paper provides a review of current applications of existing MEMS technology to the field/s of geotechnical engineering and provides a path forward for the expansion of this research and commercialisation of products.

show abstract

Pre- and Post-Improvement Performance of a Railway Embankment Stabilized with Ductile Inclusions

Yan,

Take,

Sherlock

et al. 2024

Transportation Geotechnics

View full text Add to dashboard Cite

Evaluation of Shape Array sensors to quantify the spatial distribution and seasonal rate of track settlement

Cited by 5 publications

References 8 publications

The Use of Shape Accel Array for Deformation Monitoring and Parameter Inversion of a 300 m Ultrahigh Rockfill Dam

The Use of Shape Accel Array for Deformation Monitoring and Parameter Inversion of a 300 m Ultrahigh Rockfill Dam

MEMS technology and applications in geotechnical monitoring: a review

Pre- and Post-Improvement Performance of a Railway Embankment Stabilized with Ductile Inclusions

Contact Info

Product

Resources

About