Comprehensive Evaluation Method for the Grouting Management Effect of Mine Water Hazards Based on the Combined Assignment of the TOPSIS and RSR Methods DOI Creative Commons
Shan Tang, Xuehai Fu,

Baolei Xie

и другие.

Applied Sciences, Год журнала: 2024, Номер 14(22), С. 10228 - 10228

Опубликована: Ноя. 7, 2024

The effectiveness of grouting management is closely linked to the safety mining operations, making scientific and accurate evaluation mine water hazard a critical issue that demands immediate attention. Current technologies for are limited by singularity in indicator assignment, reliance on isolated indicators, generalization weak metrics. Using top bottom project 110504 working face at Banji coal Anhui Province as case study, both theoretical practical insights were integrated. Drilling fluid consumption, final pressure, permeability, dry material per unit length selected key indicators establish comprehensive effect index system. To address limitations previous assignment methods, this study proposes novel approach combines Precedence Chart (PC) with Criteria Importance Through Intercriteria Correlation (CRITIC) method. This integrated resolves issues subjectivity prior techniques. system was constructed based single framework, incorporating model uses Technique Order Preference Similarity Ideal Solution (TOPSIS) ranking Rank Sum Ratio (RSR) classification support. demonstrates high goodness-of-fit, value 0.938, indicating strong performance. model’s results visualized form zoning map, further validated through comparisons actual on-site discharge data exploration borehole inflow measurements. A maximum recorded influx 70 m3/h, aligning relatively zones identified evaluation. findings demonstrate proposed exhibits degree reliability rigor, providing valuable guidance enhancing body stability minimizing loss.

Язык: Английский

A Comprehensive Review of Sustainable Assessment and Innovation in Jet Grouting Technologies DOI Open Access
Shinya Inazumi,

Sudip Shakya

Опубликована: Март 28, 2024

This paper undertakes a comprehensive review to underscore the central role of sustainability in evaluation and innovation jet grouting technologies. It meticulously traces evolution methodologies, emphasizing imperative sustainable practices throughout history. Traditional paradigms are examined alongside contemporary trends, with particular focus on metrics visualization techniques. Through an examination innovative technologies, this illustrates how principles have driven advancements aimed at improving efficiency environmental impact methods. Central is assessment across multiple dimensions, including method applicability, installation operational compatibility, performance resulting grouted piles. By considerations, highlights intrinsic link between integrity technological field grouting. In addition, it discusses analytical methods designed proactively address concerns prior construction, thereby promoting more environmentally responsible approach. Finally, presents pioneering framework that integrates real-time monitoring tools, allowing stakeholders track milestones construction process. as guiding principle, advocates for paradigm shift toward ecologically sound resilient practices.

Язык: Английский

Процитировано

5

Comprehensive Guidelines for Numerical Simulation of Jet Grouting Technology Using MPS-CAE DOI Creative Commons

Sudip Shakya,

Yoji Hontani,

Kuo Chieh Chao

и другие.

Geosciences, Год журнала: 2025, Номер 15(2), С. 36 - 36

Опубликована: Янв. 22, 2025

This paper presents a thorough guide to simulating jet grouting using the Moving Particle Semi-Implicit (MPS) method for numerical analysis and Computer-Aided Engineering (CAE) model development. It addresses shortcomings of previous simulation studies, which often lacked clear comprehensive guidelines, by providing detailed step-by-step approach. The key aspects that define shape output real-world technology, such as spray settings material parameter configurations, are validated against benchmark experimental data. previously challenging task accurately determining parameters soil when modeled Bingham fluid bi-viscosity model, is simplified into universal guideline can be easily applied any type with known unconfined compressive strength. Finally, reliability confirmed comparing results data under similar conditions, demonstrating robustness accuracy proposed method.

Язык: Английский

Процитировано

0

Enhancing Sustainability of Building Foundations with Efficient Open-End Pile Optimization DOI Open Access
Primož Jelušič

Sustainability, Год журнала: 2024, Номер 16(16), С. 6880 - 6880

Опубликована: Авг. 10, 2024

Optimizing open-end piles is crucial for sustainability as it minimizes material consumption and reduces environmental impact. By improving construction efficiency, less steel needed, reducing the carbon footprint associated with production transportation. Improved pile performance also results in more durable structures that require frequent replacement maintenance, which turn saves resources energy. This paper presents a parametric study on optimal designs open-ended sand, presenting novel approach to directly compute using CPT results. It addresses challenges posed by soil variability layered conditions, optimization model accounting interdependencies among length, diameter, wall thickness properties, including pile–soil plug system. A mixed-integer OPEN-Pile was developed, consisting of an objective function mass CO2 emissions. The constrained set design geotechnical conditions corresponded current codes practice recommendations. efficiency developed illustrated two case studies. In Blessington calculation show economical environmentally friendly increase diameter than length. efficient design, ratio between calculated at upper limit. For optimum ratios length are 5, 50 250, respectively. profile, decision where place base depends resistance cone tip individual layers. To determine layer should be placed, we need perform given data.

Язык: Английский

Процитировано

1

Performance and Microstructure of Grouting Materials Made from Shield Muck DOI Open Access
Zhenxu Wu,

Chaoliang Ye,

Fengxu Cao

и другие.

Materials, Год журнала: 2024, Номер 17(16), С. 4074 - 4074

Опубликована: Авг. 16, 2024

In response to the environmental pollution caused by transportation and accumulation of large-scale shield muck, on-site reutilization muck is an effective approach. This study explored feasibility silty clay prepare grout. Through orthogonal experiments, effects cement, fly ash, admixture, water-solid ratio on fresh properties mechanical grout were studied. The performance prediction model was established Additionally, intrinsic relationships between compressive strength microstructure grouting materials through multi-technology microstructural characterization. results indicate that content have a greater significant influence bleeding ratio, flowability, setting time, volume shrinkage rate compared other factors. Cement has than An optimal mix proportion (12% for 18% 50% 0.465 19.5% river sand, 0.5% bentonite) can produce meet requirements. filling effect cementitious substances particle agglomeration reduce internal pores materials, improving their structure significantly enhancing strength. Utilizing as raw material synchronous feasible.

Язык: Английский

Процитировано

1

Comprehensive Evaluation Method for the Grouting Management Effect of Mine Water Hazards Based on the Combined Assignment of the TOPSIS and RSR Methods DOI Creative Commons
Shan Tang, Xuehai Fu,

Baolei Xie

и другие.

Applied Sciences, Год журнала: 2024, Номер 14(22), С. 10228 - 10228

Опубликована: Ноя. 7, 2024

The effectiveness of grouting management is closely linked to the safety mining operations, making scientific and accurate evaluation mine water hazard a critical issue that demands immediate attention. Current technologies for are limited by singularity in indicator assignment, reliance on isolated indicators, generalization weak metrics. Using top bottom project 110504 working face at Banji coal Anhui Province as case study, both theoretical practical insights were integrated. Drilling fluid consumption, final pressure, permeability, dry material per unit length selected key indicators establish comprehensive effect index system. To address limitations previous assignment methods, this study proposes novel approach combines Precedence Chart (PC) with Criteria Importance Through Intercriteria Correlation (CRITIC) method. This integrated resolves issues subjectivity prior techniques. system was constructed based single framework, incorporating model uses Technique Order Preference Similarity Ideal Solution (TOPSIS) ranking Rank Sum Ratio (RSR) classification support. demonstrates high goodness-of-fit, value 0.938, indicating strong performance. model’s results visualized form zoning map, further validated through comparisons actual on-site discharge data exploration borehole inflow measurements. A maximum recorded influx 70 m3/h, aligning relatively zones identified evaluation. findings demonstrate proposed exhibits degree reliability rigor, providing valuable guidance enhancing body stability minimizing loss.

Язык: Английский

Процитировано

0