| Summary: | 碩士 === 國立臺北科技大學 === 土木與防災研究所 === 99 === This is have already covered the ground under the pipeline and the migration of many difficulties in Taiwan, The widely used pipe jacking method can be improved, but encountered by driftwood, underground buildings, microtunnelling Trapped underground obstacles , instead of machine drilling in the past owing to the performance of instrument itself and difficult trajectory control as well as lacking of standard operating procedure. The study focuses on the steering quality control for pipe jacking in soft soil and collects a series of field data of different drilling machines, including OKUMURA and ISEKI , further understanding the interaction between its trajectory and adjustment of drilling direction.
The following topics for pipe jacking are discussed such as (1) microtunnelling to modify control trajectory and direction of the best steering quality control mode (2) The value of this 18 case study and Yu-Chang Tsai(2007), the gravel layer 9 case study compared with each other to explore the different microtunnelling and trajectory on the steering control system.the study concludes that the trajectory controlling system and standard operating procedure for microtunnelling should be established through previous engineering practices further to improve its skill and quality as well as to be a criterion.
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