ArticleScientific reports2023
Technology and engineering test of filling goaf with coal gangue slurry.
Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Influence of Particle Size Distribution of Coal Gangue on Performance of Prepared Ceramsite.Materials (Basel, Switzerland) · 2026Article
- A DAS-Based Multi-Sensor Fusion Framework for Feature Extraction and Quantitative Blockage Monitoring in Coal Gangue Slurry Pipelines.Sensors (Basel, Switzerland) · 2026Article
- Study on key strata and surface deformation prediction for overburden separation grouting mining in adjacent panel based on foundation beam theory.Scientific reports · 2026Article
- Research on the Preparation of Carbon-Negative Backfill Materials via Enhanced Carbon Sequestration Using Coal-Based Solid Waste.ACS omega · 2026Article
- Structural characteristics of the slurry-filled receptive zone in longwall goaf filled with gangue slurry.Scientific reports · 2025Article
- Multi-scale influence mechanism of fine coal gangue on the mechanical properties of concrete.Scientific reports · 2025Article
- Investigations on mineralogical characteristics and feasibility of coal gangue as a concrete aggregate from guizhou province, China.Scientific reports · 2024Article
- Study on the Properties of All-Solid Waste Fluidized Filling Materials Applied to Mine Void Area Filling Engineering.Materials (Basel, Switzerland) · 2024Article
- Study on the macro-micro evolution of compaction characteristics of coal gangue with different grain sizes under side-limit compression conditions.Scientific reports · 2024Article
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Authors and funding
8 authors.
Funding
Abstract
Based on the greening and low interference disposal requirements of coal gangue in high-yield and high-efficiency mines in Inner Mongolia and Shaanxi, and by integrating the existing theories and technologies such as underground filling technology of coal gangue, mine yellow mud grouting technology, and the evolution law of mining overburden fractures, a technology of filling goaf with coal gangue slurry for green disposal of coal gangue is proposed. The principle and technical framework of the technology of filling goaf with coal gangue slurry are clarified. This paper expounds on the technological process of technology of filling goaf with coal gangue slurry, establishes three types of slurry filling systems, such as centralized ground layout, ground and underground coordinated layout, and centralized underground layout, and constructs three slurry filling methods, including low-level grouting, adjacent level grouting, and high-level grouting, forming seven kinds of technology models of filling goaf with coal gangue slurry, including ground centralized pulping + high-level grouting, ground centralized pulping + adjacent grouting, ground centralized pulping + low level grouting, ground and underground coordinated pulping + adjacent grouting, ground and underground coordinated pulping + low level grouting, underground centralized pulping + adjacent grouting, and underground centralized pulping + low level grouting, and gives the selection process of technology models of filling goaf with coal gangue slurry. Based on the different conditions and requirements of Haidaze Coal Mine and Huangling No. 2 Coal Mine, engineering tests were carried out on two different technology modes, namely, ground and underground coordinated pulping + low level grouting and ground and underground coordinated pulping + adjacent grouting, based on simulation tests of low level grouting and adjacent grouting. The tests prove the feasibility of filling goaf with coal gangue slurry and explore the way for the theoretical research of the technology of filling goaf with coal gangue slurry and greening and low interference disposal of coal gangue.
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Registered trials
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