| Author | Prayat Nikompakdi |
| Call Number | AIT Thesis no. GE-97-22 |
| Subject(s) | Coast changes--Thailand--Prachuap Khiri Khan--Hua Hin
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| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Civil Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | The coastal geology along the Hua Hin coast consists of the Precambrian metamorphic rocks and Triassic igneous rocks which are overlain by the Quaternary alluvial, colluvial and marine deposits. Beach and marine terraces are predominant in marine deposits. Tidal flat is found near Khao Takiap. The beach sand ranges from fine to coarse grained, but mainly medium to coarse, well s01ted to ve1y well s01ted and positively and symmetrically skewed. The Pranburi-Hua Hin metamorphic complex consists of gneiss, qua1tzite, schist, marble and calcsilicate rocks which are the source of beach sediments, especially Hua Hin gneiss and Hub Kapong gneiss. The heavy minerals found along coast are dominated by tommaline, calcite, zircon with small amounts of leucoxene, aragonite, ilmenite, magnetite. Rutile, cassiterite, epidote, amphibole and garnet are also present in very small quantities. The heavy mineral grains are transp01ted n01thwards from the south of the coast. Due to deeper bathymetry, Hua Hin beach is potentially prone to more erosion than Cha-am beach. The main factors causing shoreline erosion are longshore sediment transp01t by action of wind and wave and depletion of sediment supply by urban development Damming of Pranburi river and engineering structures parallel to Hua Hin coast such as roads, rails and buildings reduce the movement of sediment to the beach. Net longshore transpmt rate was 13,950 m3 /month to the nmth direction. The retreating shoreline is threatening the economy of the Hua Hin area in two significant ways; damage to prope1ties and coastal real estate and the disappearance of important tourist beaches. The areas at most risk in shoreline change are between Khao Takiap to Hua Hin Airpo1t. Seawalls and rubble mounds are most common protective and remedial measures for beach erosion along the Hua Hin coast. |
| Year | 1998 |
| Type | Thesis |
| School | School of Civil Engineering |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Geotechnical Engineering (GE) |
| Chairperson(s) | Prinya Nutalaya; |
| Examination Committee(s) | Noppadol Phien-Wej ;Shibuya, Satoru; |
| Scholarship Donor(s) | Electricity Generating Authority of Thailand (EGAT); |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology |