Abstract

In the concrete dam construction, it is very necessary to strengthen the real-time monitoring and scientific management of concrete temperature control. This paper constructs the analysis and inverse analysis system of temperature stress simulation, which is based on various useful data collected in real time in the process of concrete construction. The system can produce automatically data file of temperature and stress calculation and then achieve the remote real-time simulation calculation of temperature stress by using high performance computing techniques, so the inverse analysis can be carried out based on a basis of monitoring data in the database; it fulfills the automatic feedback calculation according to the error requirement and generates the corresponding curve and chart after the automatic processing and analysis of corresponding results. The system realizes the automation and intellectualization of complex data analysis and preparation work in simulation process and complex data adjustment in the inverse analysis process, which can facilitate the real-time tracking simulation and feedback analysis of concrete temperature stress in construction process and enable you to discover problems timely, take measures timely, and adjust construction scheme and can well instruct you how to ensure project quality.

Highlights

  • Water conservancy and hydraulic power projects are getting bigger and bigger; diverse construction means are adopted and construction speed is high

  • Most of dam crack accidents are caused by thermal stress, especially the cracks which appeared in the process of construction

  • Dam cracks occurring during construction and early operation are settled mainly by controlling temperature during construction

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Summary

Introduction

Water conservancy and hydraulic power projects are getting bigger and bigger; diverse construction means are adopted and construction speed is high. In order to ensure construction quality, tracking and analyzing temperature course and stress changes of concrete dam during construction in real time, and timely learning about the current construction conditions and predicting future conditions, can enable you to discover problems timely, take measures timely, and adjust construction scheme and can well instruct you how to ensure project quality. Because the simulation calculation technique was backward, construction process simulation was very complicated and so forth; it was very hard to realize real-time thermal stress simulation analysis and inverse analysis. As the computer and internet technologies develop, the database technology is applied, and some breakthroughs are made in construction simulation calculation methods and so forth; real-time thermal stress simulation analysis and inverse analysis are not infeasible any more. Mathematical Problems in Engineering (a) Infrared thermometer (b) Digital temperature sensor (c) Temperature recorder

Design of Technical Solution of the System
System Structure
Detailed Design of Each Subsystem
Mesh Information Document
Concrete Placement Information Document
Cooling Information Document
Boundary Condition Information Document
Other Computing Auxiliary Information Control Documents
Material Parameter Information Document
Database
Conclusions
Full Text
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