| 摘要 |
PROBLEM TO BE SOLVED: To provide a carrying-in/out device of a large-sized equipment and material in a pneumatic caisson method which can make carrying-in/out easy and shorten work period without requiring dismantlement and assembly processes of the large-sized equipment and material under a high atmospheric pressure.SOLUTION: A work chamber slab 2 and an upper slab 3 are constructed in a caisson skeleton 1. A workroom 4 is formed below the work chamber slab 2. A multifunctional air-sealed chamber 9 is formed between the work chamber slab 2 and the upper slab 3. A carrying-in/out device of a large-sized equipment and material is provided with: a first multifunctional air-sealed chamber door 14 which can go in and out of the multifunctional air-sealed chamber 9 from the workroom 4 via the work chamber slab 2 in a state that a drilling machine 5 is made almost horizontal; a doorway 12 only for operators to the multifunctional air-sealed chamber 9; and a second multifunctional air-sealed chamber door 17 installed in the upper slab 3 and allowing the drilling machine 5 housed in the multifunctional air-sealed chamber 9 to pass through in an almost horizontal state. A shaft is not installed above the second multifunctional air-sealed chamber door 17, so as to provide space above the upper slab 3, which enables operators to assemble, dismantle, repair and daily check the drilling machine 5. |
