Study on the Numerical Simulation of Massive Concrete Sidewall Hydration Heat under Negative Temperature Transient Boundary

Dong Wei Li; Ju Hong Fan; Hai Ming Chen; Jun Hao Chen; Ren He Wang

doi:10.4028/www.scientific.net/AMR.163-167.2560

Paper Titles

Damage Detection for Truss Structures Depending on Method of Change in Elemental Modal Strain
p.2537

Trial Study on Methods of Damage Extent Identification Based on Wavelet Transform of Strain Signal
p.2543

Using Acoustic Emission to Quantify Damage in High-Performance Fiber-Reinforced Cement Composites under Cyclically Compressive Loading
p.2549

Monitoring for Large Cross-Section CFSTs of a Super High-Rise Building with Piezoceramic Actuators and Sensors
p.2553

Study on the Numerical Simulation of Massive Concrete Sidewall Hydration Heat under Negative Temperature Transient Boundary
p.2560

Experimental Study on Temperature Fields of Dumbbell-Shape Section of CFST Arch Rib and its Effects
p.2564

Study on the Effect of Prestress to the Dynamic Characteristics of Truss String Structure
p.2571

Damage Detection for Underground Arch Structure Considering Errors in Baseline Model
p.2576

Acoustic Emission Monitoring and Fracture Process of Reinforced Concrete Beams Strengthened in Flexure with CFRP
p.2581

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 163-167Study on the Numerical Simulation of Massive...

Study on the Numerical Simulation of Massive Concrete Sidewall Hydration Heat under Negative Temperature Transient Boundary

Abstract:

To get massive concrete sidewall hydration heat and the frozen wall’s temperature distribution law, the temperature monitor and analysis were applied in the construction process of deep frozen shaft. Combined with frozen sidewall temperature field numerical calculation finite element method, analyzed the concrete hydration heat on the impact of the artificially frozen wall in the frozen wall’s construction process. Concrete hydration heat release made rapid temperature rise of concrete, the temperature was gradually cooling down effected by the frozen wall’s low temperature and the concrete permanent supporting borders. During large release of concrete hydration heat, the frozen soil curtain was partial heating and melting, the Interface moved quickly and reached the maximum. The results showed that: the change laws of the numerical simulation and the measure point temperature were uniform, and their values were more consistent. This had a certain reference value in improving freezing construction methods and the design of deep frozen wall.