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Repeatable grouting device for high-water-head immersed tube tunnel and construction method
The invention relates to the technical field of immersed tunnels, in particular to a repeatable grouting device for a high-water-head immersed tunnel and a construction method, a pipe joint bottom steel plate is provided with a hole at the design position of an embedded steel pipe and is welded with a grating cover plate, the grating cover plate is provided with a spring, the spring is made of stainless steel, the upper end of the spring is connected with a water stop valve, and the lower end of the spring is connected with a water stop valve. The spring, the water stop valve and the pre-buried steel pipe expansion section are combined to form a check valve, the pre-buried steel pipe, the check valve, the grating cover plate and the pipe joint bottom steel plate are connected into a whole through welding seams, and the welding seam connecting position is coated with a cold galvanizing coating. Related devices are pre-buried in advance during prefabrication of immersed tube joints, so that damage to a structure main body caused by hole forming in the tube in the later period is avoided; the middle gallery holes are used for grouting construction, traffic space is not occupied, and traffic is not affected; a rear non-return device is arranged in the embedded pipeline, inert liquid such as paraffin oil is injected, and repeated use can be achieved; the method is suitable for a high-water-head water sinking pipe tunnel, and the using condition is widened.
本发明涉及沉管隧道技术领域，具体为一种高水头沉管隧道可重复注浆装置及施工方法，管节底钢板在所述预埋钢管设计位置处开孔并焊接格栅盖板，所述格栅盖板上设有弹簧，所述弹簧采用不锈钢制作，所述弹簧上端连接止水阀门，所述弹簧、止水阀门与预埋钢管扩大段组合形成止回阀，所述预埋钢管、止回阀、格栅盖板与所述管节底钢板采用焊缝连接形成整体，焊缝连接处涂刷冷镀锌涂层。通过沉管管节预制时提前预埋相关装置，避免后期管内开孔对结构主体造成破坏；利用中廊道孔进行注浆施工，不占用交通空间，对交通无影响；预埋管路内设置后止回装置，并注入石蜡油等惰性液体，可实现重复使用；适用于高水头水下沉管隧道，拓宽了使用条件。
Repeatable grouting device for high-water-head immersed tube tunnel and construction method
The invention relates to the technical field of immersed tunnels, in particular to a repeatable grouting device for a high-water-head immersed tunnel and a construction method, a pipe joint bottom steel plate is provided with a hole at the design position of an embedded steel pipe and is welded with a grating cover plate, the grating cover plate is provided with a spring, the spring is made of stainless steel, the upper end of the spring is connected with a water stop valve, and the lower end of the spring is connected with a water stop valve. The spring, the water stop valve and the pre-buried steel pipe expansion section are combined to form a check valve, the pre-buried steel pipe, the check valve, the grating cover plate and the pipe joint bottom steel plate are connected into a whole through welding seams, and the welding seam connecting position is coated with a cold galvanizing coating. Related devices are pre-buried in advance during prefabrication of immersed tube joints, so that damage to a structure main body caused by hole forming in the tube in the later period is avoided; the middle gallery holes are used for grouting construction, traffic space is not occupied, and traffic is not affected; a rear non-return device is arranged in the embedded pipeline, inert liquid such as paraffin oil is injected, and repeated use can be achieved; the method is suitable for a high-water-head water sinking pipe tunnel, and the using condition is widened.
本发明涉及沉管隧道技术领域，具体为一种高水头沉管隧道可重复注浆装置及施工方法，管节底钢板在所述预埋钢管设计位置处开孔并焊接格栅盖板，所述格栅盖板上设有弹簧，所述弹簧采用不锈钢制作，所述弹簧上端连接止水阀门，所述弹簧、止水阀门与预埋钢管扩大段组合形成止回阀，所述预埋钢管、止回阀、格栅盖板与所述管节底钢板采用焊缝连接形成整体，焊缝连接处涂刷冷镀锌涂层。通过沉管管节预制时提前预埋相关装置，避免后期管内开孔对结构主体造成破坏；利用中廊道孔进行注浆施工，不占用交通空间，对交通无影响；预埋管路内设置后止回装置，并注入石蜡油等惰性液体，可实现重复使用；适用于高水头水下沉管隧道，拓宽了使用条件。
Repeatable grouting device for high-water-head immersed tube tunnel and construction method
一种高水头沉管隧道可重复注浆装置及施工方法
HU BIN (author) / XING YONGHUI (author) / LYU JIANYING (author) / JIANG BAOCHEN (author) / LUO CHENGZHENG (author) / REN TIANYU (author) / WANG HONGGANG (author) / GUO QING (author) / XIAO PINGPING (author) / ZENG KE (author)
2024-01-02
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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