Olarn Charoenchai. Flood resilience practical adaptation in flash and inundation flood-affected areas in Thailand. Doctoral Degree(Environment and Resource Studies). Mahidol University. Mahidol University Library and Knowledge Center. : Mahidol University, 2018.
Flood resilience practical adaptation in flash and inundation flood-affected areas in Thailand
Abstract:
The objectives of this study were to assess flood resilience of houses and socio-economic adaptation of households in flash and inundation flood-affected areas in Thailand. Five flash and five inundation flood-affected areas in Thailand were chosen to be study sites. Guided field walks, architectural measurement, and in-depth interview were used to collect data. Disaster Resilience Framework was employed as the main frame to assess flood resilience in this study. The software named Robot Structural Analysis Professional (educational version) was used to assess robustness of houses to water flood and debris flow in flash flood sites. The assessment on robustness of house's materials to inundation flood and the assessment on redundancy, resourcefulness, rapidity of houses and socio-economic adaptation of households to flash and inundation flood were undertaken by applying the technique of Directed Content Analysis. The results of this study were as follows: 1) About robustness assessment of physical characteristics of houses in flash flood-affected areas, main structure of all types of house can withstand flood loads of water flood except wooden single-story house and all types of house cannot endure impact loads of debris flow except double-story house which downstairs' main structure is reinforced concrete, all types of downstairs wall breakdown when they are stricken by flood and impact loads whereas ground floor panels both slabs on ground and on beams still exist. 2) About robustness assessment of houses in inundation flood-affected locations, all types of house are not resilient to flood, wood components of wooden house degrade in form of swelling, twisting, cupping, bowing, and checking. Reinforced concrete members of concrete house gradually deteriorate by carbonation and chloride ingress process that cause the corrosion of reinforcing steel bars that leads to the loss of strength of such members. Masonry walls of concrete house degrade by sulphate crystallization in masonry units and mortar that cause the breaking apart of masonry units and the erosion of mortar joint. 3) Most physical characteristics of houses and socio-economic adaptation of households in flash and inundation flood sites represent at least one of three remaining properties of disaster resilience: redundancy, resourcefulness, and rapidity whereas some characteristics and adaptation are outside the scope of Disaster Resilience Framework and need new words to explain them.