Numerical simulation of concrete pumping process and investigation Related Information

Numerical Simulation of the Construction Process of Long

Mar 05, 2021 · A numerical model for the construction process of long spiral CFG piles is established based on the coupled Eulerian–Lagrangian method. The construction process is divided into drilling process and concrete pouring process for modeling. The influence of long spiral CFG piles construction on saturated sand foundation is studied, and dynamic responses, changes of pore water pressure, and …

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Numerical investigation of temperature distribution in an

Jan 01, 2014 · A numerical simulation of temperature distribution in an eroded bend pipe was carried out focusing on the investigation into predicting the erosion reduced thickness in elbow. By conducting a series of simulations, effects of oil inlet rate, oil inlet temperature, and erosion reduced thickness on temperature distribution in elbow are examined.

Blast Response Analysis of Reinforced Concrete Slabs

Aug 05, 2011 · Altogether four detonation tests are conducted, in which 12 slabs of two different concrete types are subjected to the same blast load. Results of the experimental program are validated by numerical simulation using two different material models for the prediction of concrete behavior.

Numerical Simulation of the Freezing Process of Concrete

Sep 01, 2013 · Numerical Simulation of the Freezing Process of Concrete. process of concrete is a very complex physical phenomenon and. mental investigation on the impact of the freezing rate on the.

Numerical Simulation of Corrosion-Induced Cracking of

Aug 08, 2021 · In this paper, a numerical approach in terms of the mesoscopic structure of concrete is used to simulate the corrosion-induced concrete cracking, and the lattice network model to account for rust penetration into cracks is developed by assuming that the movement of …

Numerical Study on Concrete Pumping Behavior via Local

The use of self-consolidating concrete and advanced pumping system enables efficient construction of super high-rise buildings; however, risks such as clogging or even bursting of pipeline still exist. To better understand the fresh concrete pumping mechanisms in detail, the discrete element method is employed in this paper for the numerical simulation of local pumping problems.

(PDF) Numerical simulation of concrete pumping process and

Numerical simulation of concrete pumping process and investigation of wear mechanism of the piping wall

Numerical simulation for optimizing the nozzle of moist

The nozzles of moist-mix shotcrete are the key parts of forming a steady jet flow field and ensuring the uniform mixing of water and other ingredients. In this paper, for optimizing the nozzle of moist-mix shotcrete, both the internal and external field of a variety of spray nozzles were simulated and analyzed by adopting orthogonal test method with Fluent simulation software combined.

[PDF] Numerical simulations of concrete processing: From

This review shows that the available numerical modelling tools are able to detect and predict various type of failures through the printing process, no matter if these happen at the scale of the nozzle, of one printed layer or of the entire object being printed. Abstract The concrete industry is facing new digital shaping processes that still have to be optimized and that require cement-based

Numerical simulation of concrete pumping process and

A numerical simulation based on CFD and discrete element method was conducted. The solid-fluid multiphase flow problem in concrete pumping progress was studied. A model for understanding the erosion severity on the wall was established. The maximum erosion was observed at 30°∼40° of the outer wall. The results have good agreements with those observed in actual case.

Calibration of a CFD discharge process model of an off

Jan 14, 2019 · In the literature, the CFD analysis of fresh concrete flow is mostly applied to simple geometries (e.g. Slump test or L-box test [3,4,5,6,7,8,9,10,11,12]).There are also some studies on industrial applications, like concrete pumping studies [13, 14] and a stress analysis of a drum mixer [].The main critical issue in the CFD analysis regarding fresh concrete is the match between the physical

Effect of lubrication layer on velocity profile of

Jan 22, 2015 · The rheology of concrete is predominant for the required pressures in a pumping pipe. However, more detailed information is required on the formation and the properties of the lubrication layer near the pipe surface, in order to be able to accurately predict the pressure-discharge relation. By means of experimental research in combination with advanced numerical simulations, the lubrication

Numerical investigation of the location of maximum erosive

flow was proposed in [5]. In our previous work [7], the concrete pumping process was modeled with the location of maximum erosive wear damage in elbow predicted. The simulation results showed that the wear pattern in an elbow depended on the magnitude of the interaction forces and the frequency of interactions between particles and wall.

Digital image-based numerical simulation on failure

Based on the ultra-high-rise pumping concrete engineering test with pumping height of 407 m and maximum pumping pressure of 19.3 MPa, the variation of elastic modulus of the pumping concrete was

Experimental investigation and numerical simulation

Experimental investigation and numerical simulation analysis on the thermal performance of a building roof incorporating phase change material (PCM) for thermal management A. Pasupathy a, L. Athanasius a, R. Velraj a,*, R.V. Seeniraj b a Department of Mechanical Engineering, College of …

Experimental and Numerical Investigation on the

numerical simulation were carried out. The s experimental investigation focus on the supercritical carbonation of concrete with different carbonation time. An image processing techniqueis proposed in this paper for . the analysis of the . experimental results. The numerical simulations arebased on the multi-physics model (Zha, Yu, Ye,

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Liebherr boom pumps are available with boom sizes from 17M to 58M. Various fold designs are possible, depending on the respective size. There is also a range of supports with 4 different variants of outriggers to choose from. Output sizes between 110 and 218 cubic yards per hour can be combined for pumping …

Numerical investigation of the location of maximum erosive

flow was proposed in [5]. In our previous work [7], the concrete pumping process was modeled with the location of maximum erosive wear damage in elbow predicted. The simulation results showed that the wear pattern in an elbow depended on the magnitude of the interaction forces and the frequency of interactions between particles and wall.

Numerical Simulation of the Freezing Process of Concrete

Sep 01, 2013 · Numerical Simulation of the Freezing Process of Concrete. process of concrete is a very complex physical phenomenon and. mental investigation on the impact of the freezing rate on the.