CUTTING DEVICE AND CUTTING METHOD FOR CONCRETE MEMBER

To provide a cutting device that forms, in a concrete member, a cut surface having a width in a thickness direction of the member precisely and smoothly by using a wire saw without setting restrictions on the thickness of the member.SOLUTION: A cutting device that forms a cut surface in a concrete member, the device comprising an endless wire saw that is placed penetrating through the concrete member, a drive mechanism that causes the wire saw to travel in orbit, a storage mechanism that stores an extra length part of the wire saw, a plurality of driven pulleys around which the wire saw is wound, and a pair of support devices and a pair of running devices that support the driven pulleys. The pair of support devices is arranged on the front and back sides of the concrete member, and the pair of running devices is arranged so as to be able to run on the front side and back side of the concrete member in the direction in which the cut surface is formed.SELECTED DRAWING: Figure 3 【課題】ワイヤーソーを利用してコンクリート部材に、部材厚方向の幅を有する切断面を、部材厚に制限を設けることなく精密かつ平滑に形成する。【解決手段】コンクリート部材に切断面を形成する切断装置であって、前記コンクリート部材を貫通して配置されるエンドレス状のワイヤーソーと、前記ワイヤーソーを周回走行させる駆動機構と、前記ワイヤーソーの余長部を収納するストレージ機構と、前記ワイヤーソーが掛け回される複数の従動プーリと、前記従動プーリを支持する一対の支持装置及び一対の走行装置と、を備え、一対の前記支持装置は、前記コンクリート部材の表面側及び裏面側に配置され、一対の該走行装置はそれぞれ、前記コンクリート部材の表面側及び裏面側を、前記切断面の形成方向に走行可能に配置される。【選択図】図３