The interaction between the drill bit and rock is a complex dynamic problem in the process of drilling and breaking rock. In this paper, the dynamic process of drilling and breaking rock is analyzed using ABAQUS software. The rock-breaking mechanism of drilling is revealed according to the stress–strain state of the rock and the force of the …
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1. Introduction. Rock fracturing process and failure mechanism are the eternal themes of rock mechanics and the basis of rock engineering stability evaluation, and have been increasingly widely studied by performing numerical simulations nowadays. 1, 2 Essentially, the separation process of rock occurs at micro molecular or atomic …
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This work aims to investigate and analyse the mechanism of rock failure under high-voltage electropulses in order to evaluate and increase the efficiency of high-voltage pulse technology in geological well drilling, tunnel boring, and other geotechnical engineering applications. To this end, this paper discusses the equivalent circuit of …
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A process-oriented method for real-time calibration of urban flood model parameters is proposed, which emphasizes the dynamic calibration of model parameters during the flooding process. Each time period of the simulation results can well fit the actual flood and the simulation has higher accuracy in real-time.
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Currently, the maximum degrees of freedom of numerical models are 7000 in real time. To improve the scale of numerical simulation in real time, a testing framework based on Python and graphics processing unit was proposed in this paper. The maximum degrees of freedom of the numerical model exceeded 24,000 with the testing framework.
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The findings from this study are useful for rock failure process simulation using the 3DEC-GBM modeling approach. Discover the world's research. 25+ million members; 160+ million publication pages;
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By processing the magnetic resonance images (MRIs) of the rock material, the microstructure distribution is obtained, and the attenuation coefficient is defined and calculated by the number and ...
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A new 3D mesoscale computational approach to simulate the mechanical behavior of soil–rock mixtures (SRMs) with the consideration of the grain-crushing …
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This paper presents a digital image based approach for three-dimensional (3-D) numerical simulation and failure analysis of rocks by taking into account the actual 3 …
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This investigation and simulation using EPCA was focused on the fracturing process of 2-D rock specimens under uniaxial compression. Further research using the EPCA will be carried out on 3-D rock specimens without and with preexisting joints under various stress conditions and in a coupled stress-hydro-chemical-thermo environment.
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element method, and analyzed the rock fracture process, cutting force and speci˚c cutting energy of four kinds of rocks under di˙erent con˚ning pressure conditions. Wang et al. 12 pointed out ...
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This FMER Simulator simulates the latest L-11, MAN 6570 ME Engine for a Suezmax Crude Carrier and runs the most recent version of the K-Sim® Simulator OS & simulation software. For Course Booking: [email protected] / Tel: 022 – 2770 1664; 2770 6749; Board: 27711663 (Direct) Back. ENGINE ROOM SIMULATOR COURSE …
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With the demand for underground space development, there are many new engineering and technical problems, among which the real-time prediction of rock mechanical characteristics in the drilling process is an urgent and challenging problem (Rostami et al. 2015; Huang et al. 2018; Hou et al. 2022).Real-time acquisition of rock …
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Figure 17 shows the simulated results When L/a is 4.67 the indenters act independently in the for rock fragmentation induced by double indenters with zones adjacent to the indenters and interact with each other 123 Numerical simulation of the rock fragmentation process Fig. 15 Numerical simulation 140 m=2 m=6 m=9 of AE counts versus time due to ...
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The simulated fragmentation process in the double indenter test reproduces the side cracks, which are induced by two indenters, propagate, interact and finally coalesce, chipping the rock between the indenters. The line spacing is an important factor that affects the fragmentation efficiency in multiple indenter tests.
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Eco-efficient rock processing. We are shaping eco-efficient rock processing solutions that are driven by a strong collaboration with our customers. With our innovative products and solutions and by using digitalization as a key enabler, we ensure that the mining and infrastructure industries have productive, sustainable and cost …
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Process simulation in 6 steps. Process simulation typically involves the following six steps: Process mapping: This involves creating a visual representation of the process, which includes all its steps, tasks, and …
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RFPA can simulate the failure process of heterogenous rock without special fracture elements or predefined fracture paths.42–44 Accurate modeling of rock failure and the growth of discrete fractures is required, because rock failure and fractures influence the fluid flow transmissivity and heat transfer.25,45–48. Show abstract.
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Percussion drilling is believed to be an efficient way to enhance the drilling performance, compared with the conventional drilling in deep wells, which could be achieved by applying impact loads…. Expand. 3. 1 Excerpt. Semantic Scholar extracted view of "Computer Simulation and Analysis of Rock Breaking Process by Rock Bit …
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Abstract. Rock heterogeneity is one of the most important factors when numerically simulating the rock failure process and crack propagation. This paper …
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The investigated granite samples were obtained from Aue area, located in the region of the "Erzgebirge-Vogtland Zone" (Saxony, Germany). This granite has an average grain density of 2.59 × 103 kg/m3and a mean grain size diameter of about 1 mm. The granite consists of quartz, …
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The development in the dynamic process simulation for crushing plants [1,23] provides opportunities to integrate equipment models into the continuous process performance estimations. Integration of calibration methodologies for the dynamic process models to the digital data collection system such as mass flow and power draw can be a …
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Rock is a natural heterogeneous material, which consists of different minerals and is characterized by a pronounced microstructure. The micro-mechanisms, which occur during failure process are ...
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Rock Processing Solutions. We are a trusted partner at the forefront of rock processing solutions for mining and infrastructure. Our commitment to innovation and customer profitability enables an offering spanning from crushing and screening to breaking, demolition, and service solutions. Join us as we pave the way for faster, greener, and ...
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A simulation model for system evaluation of a rice mill plant was developed with SLAM. The assumptions used in the model were the following: (1) The intake period of materials was 4 h in the morning and 4 h in the afternoon with 1 h for lunch break, but the milling operation was carried out continuously. (2) The weight of an entity in the ...
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Deep reservoirs are in a high-pressure and high-temperature (HPHT) environment, while the experimental conditions for rock electrical properties that meet the deep reservoir conditions are harsh and costly. Although digital rock technology can simulate the electrical properties of rocks, it is limited to electrical simulation studies …
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In the simulation of rock dumping process, the boundary in the x and y direction is 4 m × 4 m, the water depth is 3.3 m. Fig. 18 shows the simulation animations of the rock dumping process. The rocks fall under gravity through the dumping hopper into the water, and then interact with the submarine pipe. The rocks form a pyramid shape …
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This paper geologically analyzed and numerically simulated the rock avalanche which happened in Pusa Village, Zhangjiawan Town, Nayong County, Guizhou Province, China on 28 August 2017, with approximately 5 × 10 m3 of failure mass. The features, dynamic process and evolution mechanism of the Pusa avalanche, based on …
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DOI: 10.1007/s00603-016-1030-0 Corpus ID: 133532732; Numerical Simulation of Heterogeneous Rock Using Discrete Element Model Based on Digital Image Processing @article{Tan2016NumericalSO, title={Numerical Simulation of Heterogeneous Rock Using Discrete Element Model Based on Digital Image Processing}, author={Xin Tan and …
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About us. We are a leading provider in rock processing solutions, leveraging more than 160 years' expertise to provide our customers maximum value in terms of performance, quality, safety and sustainability. With collaboration and innovation being our main drivers, we offer a constantly evolving range of equipment, tools, services, and ...
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