none

• Main Authors: Yang-Pei Chun, 楊培君
• Other Authors: Chang-Huei Wen
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/24w39u

碩士 === 國立中央大學 === 土木工程學系 === 105 === The pipeline underground is the trend of underground engineering with the city development. To set up a new underground pipeline in the complex engineering environment will face more difficult challenges, and some special shield methods will be used more frequently. This research discussed the cause study of underground connection of shield tunnels performer by Taiwan Power Company. It is found that the main disaster was caused by the damage of sealing ring in the shield machine and this damage caused leakage and piping, and then caused the serious settlement of ground surface finally. Furthermore, the ground improvement was not implemented to protect the water pipe and sewage pipe above the tunnel. Therefore, the water pipe and sewage pipe were broken and caused the disaster more serious. To avoid the disaster expansion, the construction department took some urgent measures to control the disaster. In the future, it is suggested that the design of shield machine must consider the ground conditions, and the function of shield machine should be checked before construction. Furthermore, it is suggested to set up some common ducts in urban planning for protecting lifeline and preventing of repeated disasters. This experiment is valuable for giving us some suggestions to the future constructions to reduce the risk and cost.