對於高放射性廢棄物的處置方法，經過國際間多年以來的研究與開發已達到廣泛的共識認為深地質處置是現階段最理想且可行的處置法。深地質處置提供相對足夠的空間容納多年累積且正在產生的高放射性廢棄物，且其對人類生活圈也預期能達到長期的保護。然而現今國際間尚未有實際運轉的深地質處置場，多數仍在研究評估的階段，並且持續地對深地質處置場岩體的條件與狀況進行研究。臺灣也是眾多尋求可行的深地質處置方法的國家之一。
本論文中我們選擇使用瑞典垂直處置孔的設計策略作為依據，進而討論此方法應用於臺灣地區的可能性。我們重現了瑞典策略的解析解與數值方法，並且與其進行比較驗證(Claesson & Probert, 1996; Hökmark et al., 2009)。同時我們也利用MATLAB的程式語言撰寫了一套可藉由Gaussian數值積分的方法進行此解析解的運算的程式。
經由驗證確認本研究對於瑞典策略的重現結果準確且可行後，我們對臺灣的一個K區進行了案例研究。須註明本研究進行的時間點尚未對於此K區進行完整的地質調查，因此對於我們運用的參數有需要再行確認。在本論文的案例研究中，我們將瑞典策略的方法應用於K區之上，進而判斷需要何種調整此方法方能套用於臺灣的環境。我們更是深入地探討深地質處置場設計的幾何形狀與建設時的費用與安全的相關性。
本研究中我們發現深地質處置場設計的幾何形狀對於廢棄物罐之最高溫幾乎沒有影響，因此由於在廢棄物罐的數量估定時開挖體積與隧道的數量呈反比的關係，少而長的隧道設計可以視為較為經濟的深地質處置場設計。如欲將瑞典策略的方法應用於臺灣的環境，由於臺灣位於亞熱帶地區且深地層溫度較高，調整廢棄物罐的間距以避免其最高溫超過限制的概念將泰為昂貴且並不現實。延長廢棄物在中期處置場的時間以降低廢棄物罐的初始能量的方式相對於言較為可行。本研究中繪製了對於K區內岩石的不同熱傳導率之廢棄物罐初始能量與溫度的曲線圖。雖然此曲線圖的運用限定於K區，但是此曲線圖的方法應可應用於任何決定以調整廢棄物罐初始能量的方法以避免廢棄物罐最高溫超出限制的區域之中。

After numerous years of international research and development there is a broad technical consensus that deep geological disposal is preferred method for the management of High Level radioactive Waste (HLW). Deep geological disposal offers relatively enough space to accommodate the large volume of HLW accumulated over the years will provide safety of to humankind and the environment for now and far into the future. Though there yet to be an operating geological repository for HLW, and there remains substantial public research about the underground rock mass of geological repository. Taiwan is one of the many countries that are seeking for a viable method to develop a deep geological repository.
In this thesis, we chose the Swedish strategy for vertical deposition holes as a reference and discuss the feasibility to apply this method in Taiwan. We reproduced the analytical solution and numerical methods of the Swedish strategy. The results are verified by comparison with the analytical solutions of the Swedish strategy (Claesson & Probert, 1996; Hökmark et al., 2009). A Gaussian quadrature program is also developed with MATLAB to perform the calculations of the analytical solution by approximating the integrals with the Gaussian quadrature.
With the verification that the method of this study is feasible and accurate, a case study is performed for a K area located in Taiwan. It should be noted that at the time of the study geological investigations of the K area were not complete and the parameters input requires further confirmation. In the case study we apply the method of the Swedish strategy to the K area and determine what adjustment are necessary to adapt the concept to Taiwan. We also made further discussions about the geometry of the layout of a repository and the relevance with the cost and safety factors.
In this study, we found that the geometry of the layout of the repository is irrelevant to the peak buffer temperature, so as the excavation volume scales directly with the number of tunnels when the canister count is constant, a repository with long tunnels is expected to be a more economic design. To apply the Swedish strategy to a location in the subtropical regions, such as Taiwan, adjustments to canister spacing is too expensive and is not a realistic method to avoid the temperature criterion. Reducing the canister initial power by keeping the used fuel assembles in the interim storage should be a more possible method. A nomographic canister initial power-temperature chart for different rock conductivities in the K area has been developed in this study. Though this chart may only be used in the K area, the concept of this chart should be viable for any area that decides to use variable canister initial power to avoid the temperature criterion.

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