关键词: 系统布置设计(SLP), 山岭隧道, 施工场地, 安全布局, 贝叶斯网络

Abstract:

In order to improve the level of safety layout of the construction site of the mountain tunnel, taking the construction site of Niuluan village tunnel as an example, an improved SLP method was proposed to lay out the site for 13 units such as concrete mixing station, machinery storehouse, cement storehouse, etc. The method was combined with a Bayesian network model, and the weight of important factors of the site layout of the mountain tunnel was determined by comparing the factors influencing the layout of the building construction site and the comprehensive interrelationship between the laying units, forming 2 site layout optimization schemes, and determining the relative optimal site layout scheme by establishing a mathematical model with safety level intensity, material flow intensity and transportation time as the objective function, and comparing the optimization scheme with the original scheme by combining the factor weighting method. The results show that the optimal site layout scheme derived from the improved SLP method is smaller than the original scheme in terms of the altered area, and improves 12.30% in terms of the safety level intensity, material flow intensity and transportation time, which helps to improve the efficiency of mountain tunnel construction and enhance the level of construction site safety.

Key words: systematic layout planning(SLP), mountain tunnel, construction site, safe layout, Bayesian network