基于马尔科夫排队网的逆作法土方施工优化研究

发布时间：2018-06-03 18:05

本文选题：马尔科夫排队网模型 + 逆作法　；参考：《成都理工大学》2017年硕士论文

【摘要】：在逆作法土方施工工程过程中,土方工程施工较复杂,各类施工机械、人力物力等排队配合不协调,既影响生产效率,也给现场管理带来很多问题。本文以成本和时间优化为目标,将Markov(马尔科夫)排队网络应用到运用逆作法土方工程中,通过实地收取调查数据,对结合A工程基坑开挖的逆作法土方施工进行数学建模和仿真优化研究,为逆作法土方工程的机械设备组织方案提供了一套思路。其成果如下:(1)通过对逆作法土方施工的问题描述,以实际逆作法土方施工过程中挖掘机、推土机、运载汽车等各机械之间配合度较高的作为研究对象,分析各机械之间的时间、成本等消耗量,以缩短施工工期,减少施工成本为目的,讨论各机械、各节点关系之间的排队建模条件,建立了优化模型。(2)为了验证Markov(马尔科夫)排队网建立的排队优化模型,将模型应用到A工程逆作法土方施工的土方开挖过程中进行仿真优化,仿真优化结果表明:模型是可行有效的,在逆作法土方施工工程过程中不仅缩短土方施工工期时间,而且减少施工成本。(3)运用现场管理理论和A工程数据,从优化服务效率,改善优化逆作法土方施工的挖掘现场和卸料现场的视角,提出现场改善、施工优化的对策和建议。本文结合实际调研与理论知识,将Markov(马尔科夫)排队网用于逆作法土方施工中,在保证了逆作法土方施工质量与安全的前提下,缩短逆作法土方施工工期,减少逆作法土方施工成本费用,为逆作法土方施工效率改善提供了一套方案。
[Abstract]:In the process of reverse earthwork construction, the construction of earthwork is more complicated, and all kinds of construction machinery, manpower and material resources are not coordinated, which not only affects the production efficiency, but also brings a lot of problems to the field management. Aiming at cost and time optimization, this paper applies Markov-Markov queuing network to earthwork engineering using reverse method, and collects survey data on the spot. The mathematical modeling and simulation optimization of the earthwork construction combined with the excavation of foundation pit of engineering A are studied, which provides a set of ideas for the organization of mechanical equipment in the earthwork. The results are as follows: 1) by describing the problem of earthwork construction in reverse practice, taking the higher cooperation between excavators, bulldozers, carrying vehicles and other machinery in the actual reverse construction process as the research object, and analyzing the time between the various machines, In order to shorten the construction period and reduce the construction cost, this paper discusses the queueing modeling conditions between each machine and each node, and establishes the optimization model. 2) in order to verify the queuing optimization model established by Markov-Markov queuing network, The model is applied to the simulation and optimization of earthwork excavation in reverse earthwork construction of engineering A. The simulation and optimization results show that the model is feasible and effective, and not only shortens the time of earthwork construction in the process of reverse earthwork construction, but also reduces the time of earthwork construction. Moreover, using the field management theory and A engineering data, from the perspective of optimizing service efficiency, improving the excavation site and unloading site of the optimized reverse method, the countermeasures and suggestions of site improvement and construction optimization are put forward. Combined with practical investigation and theoretical knowledge, Markov-Markov queuing network is used in reverse earthwork construction. Under the premise of ensuring the quality and safety of reverse earthwork construction, the construction period of reverse earthwork is shortened. Reducing the cost of reverse earthwork construction provides a set of scheme for improving the efficiency of reverse earthwork construction.
【学位授予单位】：成都理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU751

【参考文献】