| 摘要 |
PURPOSE: A construction method of a vertical hole for tunnel construction is provided to construct a high-durability vertical hole by controlling the placing and curing time of concrete mortar. CONSTITUTION: A construction method of a vertical hole for tunnel construction is as follows. A downward vertical hole is formed in the ground, and a climbing tower(10) is installed therein. Reinforcing bars(11) are installed on the inner surface of the downward vertical hole. A binding frame(20) is installed on the outside of the climbing tower. A form(5) is installed in the end of the binding frame in a circular shape. A gap for a concrete molding is set by pushing the form toward the reinforcing bars. A concrete wall(25) is formed by putting concrete mortar into the gap. A second-stage concrete wall is formed by removing the form using the binding frame and an interlocking unit(K). The processes are repeated.
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