Complex Terrain Based On Large Scale System Theory Optimization Of Earthwork Allocation

Earthwork allocation is a very important preliminary work in construction engineering.Whether it is residential construction,industrial construction or rockfill dam engineering,earthwork allocation engineering exists in almost all construction projects.The purpose of optimizing the earthwork allocation plan is to ensure the lowest construction cost under the premise of ensuring the construction period,and to determine the amount of earthwork filling and excavation allocation and transportation path based on full consideration of the actual situation of the construction site.In the construction of large sites,earthwork adjustment plays a decisive role in the project cost,and has a significant impact on the benefit,schedule,safety,quality,and surrounding environment of the construction project under construction.However,under mountain conditions,the terrain is complex and changeable,and earthwork construction is difficult.The previous deployment methods are not very optimized for this terrain.Therefore,this article uses a mountain project in Chengde as a case to study the earthwork deployment under complex mountain terrain conditions.Optimization problem,combined with the theory of largescale system decomposition and coordination,establish an earthwork allocation model.First,it introduces the current research status of earthwork allocation problems in detail at home and abroad,analyzes and compares the commonly used earthwork allocation methods(linear programming,earthwork cumulative map method),and then describes the related theoretical basic concepts of earthwork allocation,mainly narrating The steps and principles of earthwork allocation are explained,and the constituent elements of the earthwork allocation project and the factors affecting earthwork allocation are explained in detail.Aiming at the actual situation of this project,a method of combining the decomposition and coordination model of the large-scale system with the earthwork allocation is proposed.The thesis further establishes the optimization model of the large-scale earthwork allocation system.Adding the spoil area to the earthwork allocation distance table first considers the impact of different types of soil physical properties on the earthwork allocation,and adds the influence factor of the physical properties of the soil to the earthwork allocation model.Then each unit price in the earthwork allocation was introduced and introduced into the earthwork allocation model.Introduce engineering examples,visually analyze the construction site by combining the drone tilt photography technology with Autodesk Revit,and quickly calculate the amount of excavation and filling of the construction site through Autodesk Revit,which provides a solution for the calculation of the amount of excavation and filling.A new method.Then the construction site is partitioned according to the method of large-scale system decomposition and coordination.Compared with the traditional method,this method effectively shortens the deployment distance,avoids the large-area construction site earthwork deployment,and proves that the large-scale system decomposition and coordination model can significantly reduce the cost of the earthwork deployment.Finally,through investigation and statistics,the fuzzy analytic hierarchy process is used to establish a comprehensive evaluation model for earthwork allocation,and a threelevel two-stage comprehensive evaluation model is adopted,and this project case is used for comprehensive evaluation.Among them,by calculating the index weights of the four aspects of cost control,schedule control,safety measures,and environmental protection of earthwork allocation,the weight coefficients of these four aspects are obtained,and then the evaluation results of the earthwork allocation plan of this project are obtained.