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WATER CUTOFF STRUCTURE OF BOX BODY JOINT PART
PROBLEM TO BE SOLVED: To cutoff water economically and readily at a connection of a joint part between concrete box bodies buried underground and lined up continuously and linearly, the connection being a location displaced relatively in a shear direction and an axial direction between the box bodies.SOLUTION: A joint filler 16 is placed inside a joint part 3 between concrete box bodies 1 buried underground. Cutout recesses 17 are formed along an entire circumference on an outer periphery of the box body joint part 3. A canvas 18 is arranged over an entire periphery of the concrete box body 1, to fit a shape of the cutout recess 17, with a sagging part around the cutout recess 17 so that the canvas is adhered not to the cutout recesses 17 and 17, but to both concrete box bodies 1. A length of the sagging part has been adjusted so as to enable the canvass to follow freely when the concrete box bodies 1 are relatively displaced, without being caught in a gap between the box bodies 1. Furthermore, the canvas 18 is covered by a rubber sheet 19 on an outside, the rubber sheet being installed to span between the concrete box bodies 1, with an edge part adhered to the concrete box body 1. The rubber sheet 19 functions as a water cutoff plate, and offers an elongation performance higher at least than the canvas.SELECTED DRAWING: Figure 1
【課題】地下に埋設され直線的に連続するコンクリート函体間の継手部において、函体同士の間にせん断方向および軸方向の相対変位が生じる接合部を、経済的かつ容易に止水できる。【解決手段】地下に埋設されるコンクリート函体１間の継手部３において、目地材１６を継手部目地内に配置し、函体継手部３の外周には、全周に切り欠き凹部１７を形成し、切り欠きの凹部１７の形状に沿うようにコンクリート函体１の全周に渡って帆布１８を切り欠き凹部１７，１７には接着されず、両方のコンクリート函体１に接着されるように、前記切り欠きの凹部１７でたるみを持たせて配置し、前記たるみは、コンクリート函体１間の相対変位が生じた際に、自由に追従でき、函体１間の隙間にめり込まない長さに調整されており、さらに、帆布１８の外側を端部をコンクリート函体１に接着してコンクリート函体１間に渡すように設置するゴムシート１９で覆い、前記ゴムシート１９は、止水板として機能し、少なくとも帆布より高い伸び性能を有する。【選択図】 図１
WATER CUTOFF STRUCTURE OF BOX BODY JOINT PART
PROBLEM TO BE SOLVED: To cutoff water economically and readily at a connection of a joint part between concrete box bodies buried underground and lined up continuously and linearly, the connection being a location displaced relatively in a shear direction and an axial direction between the box bodies.SOLUTION: A joint filler 16 is placed inside a joint part 3 between concrete box bodies 1 buried underground. Cutout recesses 17 are formed along an entire circumference on an outer periphery of the box body joint part 3. A canvas 18 is arranged over an entire periphery of the concrete box body 1, to fit a shape of the cutout recess 17, with a sagging part around the cutout recess 17 so that the canvas is adhered not to the cutout recesses 17 and 17, but to both concrete box bodies 1. A length of the sagging part has been adjusted so as to enable the canvass to follow freely when the concrete box bodies 1 are relatively displaced, without being caught in a gap between the box bodies 1. Furthermore, the canvas 18 is covered by a rubber sheet 19 on an outside, the rubber sheet being installed to span between the concrete box bodies 1, with an edge part adhered to the concrete box body 1. The rubber sheet 19 functions as a water cutoff plate, and offers an elongation performance higher at least than the canvas.SELECTED DRAWING: Figure 1
【課題】地下に埋設され直線的に連続するコンクリート函体間の継手部において、函体同士の間にせん断方向および軸方向の相対変位が生じる接合部を、経済的かつ容易に止水できる。【解決手段】地下に埋設されるコンクリート函体１間の継手部３において、目地材１６を継手部目地内に配置し、函体継手部３の外周には、全周に切り欠き凹部１７を形成し、切り欠きの凹部１７の形状に沿うようにコンクリート函体１の全周に渡って帆布１８を切り欠き凹部１７，１７には接着されず、両方のコンクリート函体１に接着されるように、前記切り欠きの凹部１７でたるみを持たせて配置し、前記たるみは、コンクリート函体１間の相対変位が生じた際に、自由に追従でき、函体１間の隙間にめり込まない長さに調整されており、さらに、帆布１８の外側を端部をコンクリート函体１に接着してコンクリート函体１間に渡すように設置するゴムシート１９で覆い、前記ゴムシート１９は、止水板として機能し、少なくとも帆布より高い伸び性能を有する。【選択図】 図１
WATER CUTOFF STRUCTURE OF BOX BODY JOINT PART
函体継手部の止水構造
YASUNAGA MASAMICHI (author)
2017-01-05
Patent
Electronic Resource
Japanese
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