亮點介紹 林俊宏老師對工程地球物理技術於壩堤設施全生命週期之導入研究
Integrating Engineering Geophysics into the Service Life of Dams
With the increase in population and demands of clean water, the number of dams has increased dramatically over the last century. The increase in demand has led to the construction of higher dams and larger reservoirs. Strict and careful procedures were established for ensuring the safety during service life of dams. There is a growing demand to incorporate engineering geophysics to see into the dam and facilitate early detection or diagnosis of anomalous phenomena. Near surface geophysical techniques can play a significant role in the siting, construction, and operational safety and management of the structures. Site characterization, quality control of compacted soils, investigation of abnormal leakage in an earth dam, evaluation of an aged concrete dam, geophysical health monitoring for a newly-constructed dam, and monitoring of sediment transport for sediment management are all proved in fields to show the power of engineering geophysical technologies. A systematic guideline was draft in engineering perspective for promotion.
全世界在面臨氣候變遷與人口增長的同時，對於乾淨水源的需求益發增加，但因良好庫區越來越不易尋找，致使水庫壩體的建造朝著更高更大的方向發展。為保障水庫下游民眾的生命安全，台灣已建立有良好且系統性之壩體安全檢查流程，並為達到永續水庫之目的，對於水庫管理亦投入高度關注。近年來，在安全評估中導入工程地球物理探測技術之輔助成為新趨勢，用以協助”看見”壩體內部的情形以釐清內部狀態或早期預警。然而，工程地球物理之貢獻不僅只在於安全評估的協助，其可在其整個生命週期中扮演重要的角色，從最起先之壩址調查、壩體填築品質控管、壩體安全評估乃至水庫永續管理，皆可透過工程地球物理技術獲得有效的助益。林俊宏助理教授以及他的團隊透過在全台重要水庫之實作，證實工程地球物理在壩址調查、壩體填築品質管控、混凝土壩老化調查、土石壩異常滲水調查、新建水庫之壩體安全地物監測以及庫區泥沙異重流實時監測皆可有效應用。而綜合此些應用經驗，以工程師的角度撰寫有壩體應用導引手冊，以作為應用推廣使用。此些技術可完全應用至河海堤防安全之範疇。
