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Taiwan is mountainous terrain.In the design stage plan, selection trial to avoid the plain area has gradually developed in the depth remote mountainous areas, it is possible to overcome topographical constraints of bridge engineering and Tunnel became important public works projects, which size and quantity demand is increasing. In this study, the new plant for outside Liaison Channel Tunnel construction is the subject of the project along the 5684-meter tunnel through mountain rock, Wu-ming river, Jiu-liang-ping river, and other streams Da-jia river, suffered Flow river bottom gushing and fault zones, shear crack fracture zone and the occurrence of many various sizes pumping collapse, resulting in greatly reduced the construction schedule. To overcome these problems, OBAYASHI of companies specializing in the construction management process and to develop countermeasures, risk assessment programs, with the law and all-around helper working class full praise in time, this project has been across the board on schedule in July 2014 Completed. With the construction and management experience New Austrian Tunnelling Method tunnel, analyzed and discussed various geological wheel into the construction of the river bottom efficiency and cross section, fault fracture zone, pumping collapse treatment. Another round of construction, respectively, into various types of statistical analysis of geological factors into the round to be completed by the time of construction, collorate and analyze the impact. The expected success stories for future processing using a tunnel under the bed of the river, reference design and construction of special difficulties when geological section, in order to enhance efficiency of construction and clear Countermeasures.
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