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Performance prediction of roadheaders using the rock mass cuttability classification
Roadheaders are widely used for the excavation of roadways in coal mines. Knowing the performance roadheaders is very important for the planning of...
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Effects of changing water content of clay-content rocks on field cutter consumption rate of roadheaders: a case study of porous ignimbrites
The changing formation characteristics during excavation can cause a higher cutter consumption rate (CCR) of mechanical excavators than theoretically...
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Assessment of pick wear based on the field performance of two transverse type roadheaders: a case study from Amasra coalfield
A successful excavation of roadheaders depends on the cutting performance and the tool life of conical picks. Tool life is important in terms of wear...
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Investigations on Cutting Force and Temperature Field of Pick Cutter Based on Single Factor and Orthogonal Test Methods
Understanding the cutting performance is the focus for optimizing the design and manufacture of roadheaders applied for construction and mining. In...
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Correction to: Assessment of pick wear based on the field performance of two transverse type roadheaders: a case study from Amasra coalfield
A Correction to this paper has been published: https://doi.org/10.1007/s10064-021-02153-1
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Dynamic Strength and Indentation Hardness of a Hard Rock Treated by Microwave and the Influence on Excavation Rate
Mechanical excavation in hard or very hard rocks is still challenging in rock engineering. One plausible solution is to reduce rock strength prior to...
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Tunnelling performance prediction of cantilever boring machine in sedimentary hard-rock tunnel using deep belief network
Evaluating the adaptability of cantilever boring machine (CBM) through in-depth excavation and analysis of tunnel excavation data and rock mass...
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Two- and three-dimensional stability analysis of underground storage caverns in soft rock (Cappadocia, Turkey) by finite element method
Engineering design in soft rocks and its stability analysis exerts many challenges to rock engineers. Many engineering works in Turkey’s Cappadocia...
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Stand der mechanischen Löseverfahren im Bergbau
For the extraction of large quantities in ore mining, drill and blast operation is an optimal solution. But for underground roadway development, the...
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A novel equation for calculating uniaxial compressive strength values using the point load test
Rock engineers use the uniaxial compressive strength (UCS) of rocks prevalently in the design of surface and underground structures. UCS is one of...
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Mean Cutting Force Prediction of Conical Picks Using Ensemble Learning Paradigm
The conical pick is the most essential tool of excavation machinery such as roadheaders, continuous miners, and shearers for breaking rock in mining...
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Roof Stability Mechanism and Support Technology Optimization of Tunneling Roadway
To study the stability of roof areas in the process of rapid driving in coal roadways, the deformation law of roof areas under the interaction of...
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Study on the cuttability characteristics of granites under conical picks by indentation tests
The purpose of this study is to estimate the cutting force from indentation tests on granitic rocks and validate the results by means of theoretical...
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Rotation Enhancement of Conical Picks Coupled with Springs
Effect of the spring on the conical pick rotation was investigated experimentally for the first time.
The combination of spring and conical picks...
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A New Prediction Model for Cutting Depth of Hard Rock Using High-Pressure Water Jets
High-pressure pure water jet has been widely used in breaking soft rocks and medium–hard rocks, but its research on cutting hard rocks is very...
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Analysing the Feasibility of a Full-face Cutting Machine for the Robominers Project
Several methods of excavation have previously been studied to choose the most suitable approach to be applied in the Robominers project. Compared to...
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Performance Study of Hard Rock Cantilever Roadheader Based on PCA and DBN
With the wide application of cantilever roadheader in urban subway tunnel construction, accurate prediction of excavation performance of cantilever...
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A 3D Ubiquitous-Multiple-Joint Model and Its Application to the Stability Analysis of TBM Excavated Roadway in Jointed Stratum
Tunnel Boring Machines (TBMs) have been used in many underground coal mines in China with high constructive efficiency, sound equipment integration...
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Evaluation of fine material and chip formation in rock cutting with a conical tool
The production of fines and chips during rock cutting plays an essential role in the efficiency of rock cutting, which in turn impacts productivity...
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Assessing the Size Effect on Microwave Fracturing of Diorite Using a Dielectric-Loaded Converging Waveguide Antenna
Microwave fracturing and assisted mechanical breakage of rocks has been demonstrated to be efficient and cost-effective, holding great potential in...
