Cover plate of drainage ditch in tunnel and manufacturing method of cover plate

The invention relates to the technical field of cover plates, in particular to a cover plate of a drainage ditch in a tunnel and a manufacturing method of the cover plate. The thickness of the cover plate is 2-3 cm, and one or more ventilation holes penetrating through the upper surface and the lowe...

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Bibliographische Detailangaben
Hauptverfasser:	TAN FUSHENG, PENG BIN, YU HERAN, LIU JIANYOU, WANG YANG, CHEN XUEFENG, LYU GANG, CHEN WUER, MA FUDONG, JIANG XIAORUI
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE EARTH DRILLING FIXED CONSTRUCTIONS LIME, MAGNESIA METALLURGY MINING PERFORMING OPERATIONS REFRACTORIES SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER SLAG TRANSPORTING TREATMENT OF NATURAL STONE WORKING CEMENT, CLAY, OR STONE
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Beschreibung
Zusammenfassung:	The invention relates to the technical field of cover plates, in particular to a cover plate of a drainage ditch in a tunnel and a manufacturing method of the cover plate. The thickness of the cover plate is 2-3 cm, and one or more ventilation holes penetrating through the upper surface and the lower surface of the cover plate are formed. The cover plate of the drainage ditch in the tunnel is obtained through material preparing, stirring, vibrating forming, initial maintaining and final maintaining. The thickness of the cover plate is reduced to 2-3 cm from 6 cm in the prior art and becomes smaller, the use amount of concrete is obviously reduced, and the overall weight becomes lower. However, a high-speed train generates air negative pressure when running in the tunnel, the cover plate with the lowered weight is likely to be sucked away, so that the ventilation holes penetrating through the upper surface and the lower surface of the cover plate are formed in the cover plate for the situation, the air inside and outside the drainage ditch can be communicated, and the air negative pressure is effectively reduced.