A runway is considered as one of the major facilities in an airport. It provides a path for safe aircraft maneuvering and comfort for the passenger. Thus, runway pavement design is a vital parameter for the airport. In Gujarat (India), Dholera international airport is a proposed greenfield airport. This study aims to design the airfield pavement for various alternatives (Flexible and rigid pavement) using FAARFIELD and PCASE software. CBR value is used as an input variable for flexible pavement design and k-value for rigid pavement. In general, the soil type of the Dholera region is fine-grained (MH type) and having CBR value of less than 5%. The need for soil subgrade improvement is prior to commencement for construction. Thus, the soil stabilization process takes place to increase its strength. This process includes cement, lime, terrasil (From Zydex industry, Vadodara, India) as a stabilizing agent. After the stabilization process, pavement design carried out using improved soil criteria (CBR=17.64%) by both software. FAARFIELD used mechanistic-empirical (M-E) design procedures i.e. combination of layered elastic or finite element method and empirical failure criteria. Whereas PCASE uses CBR/K (empirical method) and LED (layered elastic design method). Structural assessment for pavement has been carried out using FAARFIELD and PCASE software for alternatives by CDF method and ACN/PCN method respectively.

Topics
Structural analysis, Aircraft, Cement, Finite-element analysis, Industry
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