Muck ≈ Muck
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A new framework for evaluation of rock fragmentation in open pit mines Open
The main purpose of blasting in open pit mines is to produce the feed for crushing stage with the optimum dimensions from in situ rocks. The size distribution of muck pile indicates the efficiency of blasting pattern to reach the required …
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Acute Toxicity of Experimental Fertilizers Made of Spent Coffee Grounds Open
Sustainable agriculture places new demands on agricultural practice and, in particular, plant protection treatments and fertilization. Therefore, an increase in demand for organic fertilizers of good quality is expected. In particular, the…
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Continuous Monitoring and Improvement of the Blasting Process in Open Pit Mines Using Unmanned Aerial Vehicle Techniques Open
The current techniques used for monitoring the blasting process in open pit mines are manual, intermittent and inefficient and can expose technical manpower to hazardous conditions. This study presents the application of unmanned aerial ve…
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Kinetic energy and its applications in mining engineering Open
Reduction of energy consumption in comminution is of significant importance in mining industry. To reduce such energy consumption the energy efficiency in an individual operation such as blasting must be increased. By using both new invest…
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Velocity of detonation measurement and fragmentation analysis to evaluate blasting efficacy Open
In holes, the measurement of the velocity of detonation (VOD) helps in comparing and evaluating relative performance of explosives. In this paper a blast performance assessment was conducted based on the results obtained from the steady st…
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Effect of Stemming to Burden Ratio and Powder Factor on Blast Induced Rock Fragmentation– A Case Study Open
Rock fragmentation size is very important parameters for economical point of view in any surface mining. Rock fragment size direct effects on the costs of drilling, blasting, loading, secondary blasting and crushing. The main purpose of th…
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Environmental Dredging to Remove Fine-Grained, Organic-Rich Sediments and Reduce Inputs of Nitrogen and Phosphorus to a Subtropical Estuary Open
Environmental dredging of fine-grained, organic-rich sediments, locally referred to as Indian River Lagoon (IRL) muck, have been promoted as an integral part of restoring the IRL, Florida, to a healthy ecosystem. In Turkey Creek, a tributa…
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Anaerobic Soil Disinfestation to Manage Soilborne Diseases in Muck Soil Vegetable Production Systems Open
Anaerobic soil disinfestation (ASD) was evaluated as a tool for managing the root-knot nematode Meloidogyne hapla in lettuce (Lactuca sativa) and clubroot disease, caused by Plasmodiophora brassicae, in mustard greens (Brassica juncea) pro…
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Fragmentation calculation method for blast muck piles in open-pit copper mines based on three-dimensional laser point cloud data Open
The current calculation methods for the blast fragmentation of muck piles (BFMP) do not consider three-dimensional (3D) feature information, such as concavity and convexity. Thus, their calculation results are inaccurate. In this work, 3D …
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Auxiliary air pressure balance mode for EPB shield tunneling in water-rich gravelly sand strata: Feasibility and soil conditioning Open
Machine loads are always high, or soil conditioning is required to be rigorous when the pressure chamber is full of excavated soil during earth pressure balance (EPB) shield tunneling. This study investigates the feasibility and soil condi…
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Stabilization of Shield Muck Treated with Calcium Carbide Slag–Fly Ash Open
Solidifying shield muck with calcium carbide slag and fly ash as curing agents was proposed as a highly efficient method for reusing waste shield muck. The compaction test, unconfined compression test, and dry–wet cycle test were used to e…
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AUTOMATIC MUCK PILE CHARACTERIZATION FROM UAV IMAGES Open
In open pit mining it is essential for processing and production scheduling to receive fast and accurate information about the fragmentation of a muck pile after a blast. In this work, we propose a novel machine-learning method that charac…
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Performance of Concrete Mixes Containing TBM Muck as Partial Coarse Aggregate Replacements Open
This study investigated the potential utilization of the TBM muck obtained from the Gold Line of the Doha Metro Project as a partial replacement of coarse aggregates in concrete mixes. First, the TBM muck particles were screened to coarse …
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Muck drawing by inclined two-dimensional flow Open
The work aims at studying and developing an efficient option of layer-by-layer muck drawing from the “dead area” of the footwall for the account of forming an inclined limiting contact of the muck ore with the unmined ore massif. The paper…
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Muck Problems in Subway Shield Tunneling in Sandy Cobble Stratum Open
Experiments aiming at the muck improvement for Chengdu’s subway shield tunneling in water-rich sandy cobble ground initially finds out the kinds and ratio of muck improver suitable for the this strata, and through the field application det…
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Research and Experimental Application of New Slurry Proportioning for Slag Improvement of EPB Shield Crossing Sand and Gravel Layer Open
Based on the construction practice of the Beijing Metro Line 10 shield tunneling project, this paper describes research on soil improvement technology for Beijing stratum characteristics (sandy gravel stratum) and covers similar engineerin…
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Anaerobic Soil Disinfestation Reduces Viability of <i>Sclerotinia sclerotiorum</i> and <i>S. minor</i> Sclerotia and Root-Knot Nematodes in Muck Soils Open
Experiments were conducted to evaluate potential functional and mechanistic differences in the suppression of Sclerotinia sclerotiorum and S. minor and root-knot nematodes in muck soils by anaerobic soil disinfestation (ASD) using differen…
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Production origins and matrix constituents of spiculate pottery in Florida, USA: Defining ubiquitous St Johns ware by LA-ICP-MS and XRD Open
Fine-grained "chalky" pottery containing microscopic sponge spicules is commonly recovered from archaeological sites throughout peninsular Florida, but many questions remain about its composition and origins. It is identified by different …
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Uptake and Transformation of Hexachlorocyclohexane Isomers (HCHs) in Tree Growth Rings at a Contaminated Field Site Open
The potential transformation of hexachlorocyclohexane isomers (HCHs) within tree trunks could have a significant impact on the use of phytoscreening. However, the transformation mechanisms of HCH in trunks particularly in growth rings are …
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Research on the Reuse of Discharged Soil from EBP Shield Tunnels in Synchronous Grouting Material Open
Great practical significance and engineering application value can be achieved when the large amount of discharged soil produced by EPB shield tunnels is recycled and comprehensively utilized. As one of the key processes of shield construc…
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Long-term fire effects of the drained open fen on organic soils Open
Fire has considerable impact on vegetation and organic soils properties. As we observed that the differences between vegetation of burnt and unburnt areas on the rich fen are visible 11 years after the fire, we assumed that the post-fire c…
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Characterization of TBM Muck for Construction Applications Open
This paper investigates the potential utilization of the Tunnel Boring Machine (TBM) muck generated from Doha’s Metro Gold Line in different construction applications. The properties of the raw TBM muck were studied, and the results were c…
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Optimization of defoaming-flocculation-dewatering indices of earth pressure balance (EPB) shield muck using response surface methodology and desirability approach Open
In situ recycling is one of the most effective methods to dispose of earth pressure balance (EPB) shield waste muck with residual foaming agents with high moisture content. In this context, response surface methodology (RSM) was employed t…
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Experimental study on workability and permeability of sandy soils conditioned with thickened foam Open
Water spewing and muck plugging often occur during earth pressure balance (EPB) shield machines tunnelling in water-rich sandy strata, even though the conventional foam has been employed to condition sandy soils. In this study, a novel thi…
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Research and implementation of eco-grouting material derived from shield tunneling muck Open
During shield tunneling construction, a significant amount of waste muck is generated, presenting challenges due to its high volume, complex composition, and difficult disposal. Effectively managing this muck has become a pressing issue in…
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Optimization and Stability of the Bottom Structure Parameters of the Deep Sublevel Stope with Delayed Backfilling Open
This study analyzes the stability and optimizes the parameters of the bottom structure in sublevel stoping with the delayed backfilling method, improves production efficiency, and increases the ore recovery ratio under the premise of ensur…
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Environmental Factors Influencing Benthic Polychaete Distributions in a Subtropical Lagoon Open
Fine-grained organic-rich sediments (FGORS) in the Indian River Lagoon (IRL), Florida, sometimes called “muck,” contain elevated water, silt-clay, and organic matter contents and are abundant as a result of anthropogenic nutrient inputs. M…
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Solidification Effect and Mechanism of Marine Muck Treated with Ionic Soil Stabilizer and Cement Open
In this study, an environmentally friendly ionic soil stabilizer (ISS) was adopted with combination of Portland cement to stabilize a marine muck. The macro and micro tests results demonstrated that the ISS was an effective stabilizer to i…
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Ground Settlement of High-Permeability Sand Layer Induced by Shield Tunneling: A Case Study under the Guidance of DBN Open
During the shield construction of Harbin Subway Line No. 3 Project, the average ground settlement exceeds the warning value. In order to find the cause of settlement and improve it, this paper establishes a settlement prediction model to a…
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<i>Helicoverpa zea</i> (Lepidoptera: Noctuidae) In-Season and Overwintering Pupation Response to Soil Type Open
Heliothinae soil pupation is understudied despite the key role this life stage plays in their development. Many Heliothinae are important agricultural pests and understanding the interplay of environment and pupation is important to optimi…