Roller Compacted Concrete Dam Construction Simulation Based On GPSSWorld

The concrete amount of relatively large RCC dam are generally more than one million square, so its construction period is very long. During construction organization design, it is difficult to fully take into account the construction of various factors, getting the right construction organization. In addition, the RCC dam construction placing area is large, and the concrete pouring work of each compacted layer is continuously conducted, therefore all aspects of the work need to achieve a high degree of coordination, if the machinery configuration of whole construction system is unreasonable, it will be a "bottle-neck", which reduce the concrete construction speed. So, the roller compacted concrete dam construction of computer simulation, select the appropriate construction machinery configuration, is to ensure timely completion of the construction project cost and lower key. In this paper, in order to optimize roller compacted concrete dam construction machinery and equipment configurations, select a reasonable construction organization plan, including the establishment of mixing, transportation and Placing Area pouring simulation models, simulation study of the construction process.On the basis of RCC dam construction on the systematic analysis, can be divided into mixing transport systems and dam operating system, based on discrete event system simulation principle, the use of computer simulation software to establish a model roller compacted concrete dam construction. The system is a discrete event system, GPSS is a process for generic discrete event system simulation language, with its establishment of simulation software has a simple to read, adjust parameters, set program flexible universal strong characteristics, can be more accurately roller compacted concrete dam to reflect the actual situation of the construction. So this selection GPSSWorld simulation software model.We conducted a simulation for a specific Placing Area, by changing the input parameters of the model to simulate different construction program. A comprehensive analysis of each program as well as the duration of mechanical efficiency and other indicators, preferably through the program, finding the optimal machine configuration. Roller compacted concrete dam construction outside the warehouse by mixing transportation and Placing Area job interfere with each other, each stage different factors. When a lower Placing Area construction machinery configuration, mainly influenced by the job placement Placing Area; Placing Area construction when high mechanical configuration, restricted transportation intensity mixing.The results indicate that the model is very practical, the simulation results satisfy the constraints of construction, in line with engineering practice. For the roller compacted concrete dam construction organization plans to provide a very reasonable basis, to optimize the allocation of resources, the purpose of shortening the construction period, a very important practical significance.