The Optimization And Analysis Of Land Leveling

In the process of civil engineering construction, land levelling, earthwork calculation and cut-fill transition are of great importance primarily due to their directly effects on the investment budgets and scheme optimization of a project. Therefo re, how to calculate the earthwork and determine earthwork preparing in an adequate and effective way has become a research focus in the field of earthwork engineering.This research starts with the three stages of land levelling, earthwork calculation methods, cut- fill transition and then optimizes each stage. Based on the comparative analysis, the optimization approaches of each stage are identified. This results in the optimization of the whole land levelling process. Firstly, it is essential to determine the site preparation elevation before the land levelling. The traditional approaches utilized for determining site preparation elevation include experience evaluation method and square grid method. Nevertheless, the two approaches have some disadvantages which can result in large errors for the successive earthwork calculation. In this research, the least square method is adopted to determine the optimized deign surface while determining the site elevation. The design surface determined through this method not only meets the requirements of excavation and filling balance, but also makes the earthwork minimize. The optimization of this stage can make the minimize work for successive earthwork construction and transportation, which means construction cost saving. Secondly, majority professionals utilize manual or semi- manual methods. These methods are considered as both in-effective and in-adequate, which have negative effects on construction schedules. To address this issue, this research calculates eart hwork through employing the CASS software. This research specifies the calculation steps of three methods, including square grid method, hypsography and DEM method. This research additionally explains the application conditions of these three methods in a detailed way, which will have benefits for application users. Finally, for cut-fill transition, this research introduces two approaches, comprising tabular method and the optimized solution determined by Matlab software. For these two methods, the process of determining the optimized solution is also summarized in this research. Based on a case study, it is found that the optimized solutions determined by these two methods are identical. However, the method using Matlab is easier and faster.This research adopts the optimized methods to the real project land levelling, named Jin Fu Hua Yuan D, to achieve the optimization in the whole process of land levelling. Research results indicate that the optimized methods proposed in this research can bring benefits to professionals.