Journal ArticleDOI
Pipejacking clogging detection in soft alluvial deposits using machine learning algorithms
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TLDR
A baseline assessment of clogging in slurry-supported pipejacking is performed using a combination of TBM parameters and semi-empirical diagrams proposed in the literature, and the potential for one-class support vector machines (OCSVM), isolation forest and robust covariance (Robcov) to assess the tendency for clogging is explored.About:
This article is published in Tunnelling and Underground Space Technology.The article was published on 2021-07-01. It has received 34 citations till now. The article focuses on the topics: Clogging.read more
Citations
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Effects of chemical contamination on microscale structural characteristics of intact loess and resultant macroscale mechanical properties
TL;DR: In this article, the micro-scale structural characteristics of the loess exposed to acetic acid, phosphoric acid, sodium hydroxide, and sodium sulfate respectively are studied using scanning electron microscopy, X-ray diffraction, and energy dispersive spectroscopy tests.
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A comparative study of different machine learning algorithms in predicting EPB shield behaviour: a case study at the Xi’an metro, China
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Revealing the Enhancement and Degradation Mechanisms Affecting the Performance of Carbonate Precipitation in EICP Process
TL;DR: Wang et al. as discussed by the authors explored the potential use of the EICP technology for the protection of heritage buildings in NW China and found that the modified version performed the best with the highest calcite precipitation.
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Investigating microscale structural characteristics and resultant macroscale mechanical properties of loess exposed to alkaline and saline environments
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Investigating immobilization efficiency of Pb in solution and loess soil using bio-inspired carbonate precipitation.
TL;DR: In this paper , the authors explored the potential of applying the MICP technology to remediate Pb-rich water bodies and Pbcontaminated loess soil sites, and found that the Pb immobilization efficiency of above 85% is attained through PbCO3 and PB(CO3)2(OH)2 precipitation.
References
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Journal ArticleDOI
A method for assessing adhesion of clays to tunneling machines
Ingo Sass,U. Burbaum +1 more
TL;DR: In this article, the authors describe a test to assess the likelihood of adhesion problems occurring, simulating the situation where a clay sticks to the cutting wheel of the machine and suggest that the adhesion changes with the compression force.
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Shear strength and damage mechanism of saline intact loess after freeze-thaw cycling
TL;DR: In this paper, the mesoscopic damage due to coupled effect of freeze-thaw and salt erosion was analyzed based on computed tomography (CT) and showed that the mean CT value (ME) exhibit similar variations to the shear strength after 1 to 2 cycles while the standard deviation (SD) value grows.
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Lubrication performance of pipejacking in soft alluvial deposits
TL;DR: In this paper, the impact of misalignment on pipe-jamming performance in alluvial soil deposits has been investigated and the results showed that the effect of misalignments had a significant impact on the performance of pipe ramming.
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Performance of an Overexcavated Metro Station and Facilities Nearby
TL;DR: In this article, the authors examined the performance of an overexcavated metro station in soft clay within Shanghai metropolitan area, in which there are many high-rise buildings and buried utility pipelines in the proximity.
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Evolutionary polynomial regression based modelling of clay compressibility using an enhanced hybrid real-coded genetic algorithm
TL;DR: Comparisons between predictions and measurements demonstrate that the EPR-based modelling of clay compressibility using the enhanced RCGA gives a more accurate and reliable correlation between the compression index and physical properties of remoulded clays.