摘 要
台灣大多機場道面已屆於服務年限，大多需要整修，跑道加鋪熱拌瀝青混凝土(HMA)是整修方式之一，因考量於版塊上加鋪可能產生反射裂縫，進而加入地工合成材料，抵抗應力並延緩反射裂縫發生；以桃園國際機場為例，於剛性道面加鋪柔性鋪面，蒐集整理機場地質結構狀況，並參考民航局100年度飛機起架次數為基準，並經由美國民航局(FAA)2010年發表機場鋪面設計程式FAARFIELD進行敏感度分析，分析評估道面設計加入地工合成材料所需要加鋪厚度。
因道面需承受較大交通載重，在現有版塊狀況無虞情況下，其加鋪厚度以28cm以上較為合適；地工合成物提高路面承載能力，材料厚度越厚則鋪設瀝青混凝土厚度會減少；另地工合成物設置位置愈接近地面時，其瀝青混凝土厚度亦會減少；地工合成物設置在瀝青混凝土中1/3~1/2範圍時，其加鋪的厚度幾乎相同；地工合成物模數值改變對加鋪厚度卻無顯著的變化。

ABSTRACT
Most of airport pavement have reached on service life in Taiwan, need to renovation. Runway overlay hot mix asphalt concrete (HMA) is one way of renovation. Overlay on forum maybe occur reflective cracking, so we join geosynthetics to resist stress and delay reflective cracking occurs. Taoyuan International Airport as an example, flexible pavement paving on rigid pavement. Collecting airport geological structural condition and use the number of aircraft from the aircraft as a benchmark in CAA 100 years. Use FAARFIELD to sensitivity analysis to analysis and evaluation how much thickness that add Geosynthetics synthetic materials.

Existing slabs condition no fear, the overlay thickness of 28cm or more is better. Because the pavement is exposed to greater traffic load. Geosynthetics to improve pavement load, the thicker the material will reduce the thickness of asphalt concrete. Geosynthetics closer the ground will reduce its thickness of asphalt concrete. Geosynthetic set in asphalt concrete is 1/3 to 1/2 range, which is almost the same as the thickness of the overlay. Geosynthetics modulus value changes to the overlay thickness is not significant.

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