Distribution of Materials in Road Earthmoving and Paving: Mathematical Programming Approach

Abstract

This paper summarizes a mathematical model that relates the geometric and geotechnical features of a road construction site with the allocation of materials, searching for a minimum construction cost. This paper proposes a linear programming model to optimize excavation and paving services. With this model, it is possible to evaluate site alternatives with different soil strata and different degrees of compaction. The borrow pit materials are allocated in the most economical way, and it is possible to incorporate more inputs like materials mix. Software was used to solve the model, and a spreadsheet application was used as an interface for data input. The proposed model demonstrated possible cost savings in earthwork planning. It is expected that earthwork and paving optimization with linear programming will reduce road construction costs considerably.

A mixed-integer linear programming approach for temporary haul road design in rough-grading projects

“…Optimization of the operational cost in mass earthworks has been focused on: (1) fleet balancing for achieving the maximum earthmoving productivity [7][8][9][10][11]; (2) investigating hauling strategies under geological constraints [12][13][14][15]; (3) determining earthmoving volumes from cut areas to fill areas on site [11,[16][17][18]; and (4) identifying the proper sequence to execute earthmoving jobs [2,14,19,20]. It is worth mentioning that temporary haul road alignment design has not been explicitly defined as an optimization problem in previous construction engineering research.…”

Truck routing cut and fill problem in roadworks using integer programming

“…Because of this, the second part of the paper introduced an algorithm that reduced the resolution time of the model. Lima et al (2013) presented a mathematical model that related the geometrical and geotechnical characteristics of a road construction site to the allocation of materials, trying to ind the minimum construction cost. A linear programming model was proposed to optimize earthmoving and roadwork.…”

Logistics Optimization in Road Construction Projects of Pakistan

“…Mayer and Stark in 1981 initially originated the LP model in logistics management which was also referenced by (Easa, 1988;Jawardane and Haris, 1990;De Lima et al, 2013). Its objective is to cut down the logistics costs of earthwork in road construction.…”