Mechanistic design of flexible pavement Engineering Lab Report (Lab Report Sample)
300984 Pavement Materials and Design
School of Computing, Engineering and Mathematics
Lab 2: Mechanistic design of flexible pavement
1.Aims1.1 Understand the mechanistic procedures for designing a flexible pavement 1.2 Use of software CIRCLY to facilitate the design of flexible pavements2.Materials and Equipment2.1 CIRCLY v7.03.Introduction
Mechanistic design of flexible pavements is covered in Austroads “Guide to Pavement Technology: Part 2: Pavement Structural Design”. This approach is based on small strain linear elastic analysis supplemented by empirical models defining the performance of different layers of the pavement structure. Today’s lab will require the use of CIRCLY to carry out the mechanistic design of flexible pavements.
This lab consists of two parts.
4.1. Part 1 (4 marks)
Run CIRCLY for the 3 design cases given in Appendix K of Austroads “Pavement Technology Part 2:
Pavement Structural Design” guide. These examples are explained in the “Appendix K Examples” file uploaded on vUWS. These cases are for:
1.Sprayed seal surfaced unbound granular pavement
2.Asphalt pavement containing a cemented material subbase
3.Full depth asphalt pavement
4.1.1. Part 1: Sprayed seal surfaced unbound granular pavement
Step 1: Start CIRCLYv6.0 to open the interface shown in Fig 1:
Step 2: Create a Jobname for your work by pressing the “New” icon on the menu. Enter the jobname. Generally speaking, you will work this program by progressing from icon on left to icon on right.
Step 3: Click on “Layered System” under Job Details tree or the “Layers” icon. A “Layers” window will open on the right to display the existing cases of pavement layers (structure) stored in the database. A smaller auxiliary window displaying the pavement structure (layer number, layer material and layer thickness) of the case indicated by the pointer will also appear below the main window.
Mechanistic design of flexible pavement
Mechanistic design of flexible pavement
Mechanistic design of flexible pavements is typically covered within the Austroads “Guide in within the Pavement Technology under section two pertaining to the Pavement Structural Design. This approach is typically based on the underlying small strain linear elastic analysis that is supplemented through empirical models, which is used in defining the performance of diverse layers of the pavement structure (de Beer et al., 2018). This lab report will utilize CIRCLY to undertake mechanistic design of flexible pavements.
The primary aims of this lab report are mainly to comprehend the mechanistic procedures in regard to designing a flexible pavement as well as to utilize software CIRCLY in bid to facilitate the design of flexible pavements. The software will provide suitable ability to undertake approximation of critical pavement structural responses like stresses, strains, and deflections given the pavement layer geometry coupled with the material characteristics.
Brief outline of experiment
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