A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Device and method for controlling rebound rate of tunnel sprayed concrete
The invention discloses a device and method for controlling the springback rate of tunnel sprayed concrete. The device comprises a wet spraying trolley (1), electric control equipment (2), a concrete hopper (3), a feeding pipe, a spraying gun (5), a wind pressure unit (6) and a spraying adjusting assembly. The concrete hopper is arranged at the bottom of the rear end of the wet spraying trolley, the spraying gun is rotatably arranged above the front end of the wet spraying trolley through the spraying adjusting assembly, one end of the feeding pipe is communicated with the concrete hopper, and the other end of the feeding pipe is communicated with a feeding port of the spraying gun. The air pressure unit is arranged on the spray gun; the air outlet direction of the air pressure unit is consistent with the spraying direction of a nozzle of the spray gun; the electric control equipment is arranged on the wet spraying trolley and electrically connected with the spraying gun, the air pressure unit and the spraying adjusting assembly. According to the PVA fiber concrete, the rebound rate can be reduced to 12% or below in the spraying operation, the good compaction effect is achieved, the construction quality is effectively improved, and the construction cost is reduced.
本发明公开了一种隧道喷射混凝土回弹率的控制装置及方法，该装置包括湿喷台车(1)、电控设备(2)、混凝土料斗(3)、送料管、喷枪(5)、风压机组(6)及喷射调节组件；混凝土料斗设置在湿喷台车的后端底部，喷枪通过喷射调节组件可转动式设置在湿喷台车的前端上方，送料管的一端与混凝土料斗连通，送料管的另一端与喷枪的进料口连通；风压机组设置在喷枪上，风压机组的出风方向与喷枪的喷嘴喷射方向一致；电控设备设置在湿喷台车上，电控设备与喷枪、风压机组及喷射调节组件电连接。本发明PVA纤维混凝土在喷射作业中能将回弹率降低至12％以下，且具有良好的压实效果，有效提高了施工质量，降低了施工成本。
Device and method for controlling rebound rate of tunnel sprayed concrete
The invention discloses a device and method for controlling the springback rate of tunnel sprayed concrete. The device comprises a wet spraying trolley (1), electric control equipment (2), a concrete hopper (3), a feeding pipe, a spraying gun (5), a wind pressure unit (6) and a spraying adjusting assembly. The concrete hopper is arranged at the bottom of the rear end of the wet spraying trolley, the spraying gun is rotatably arranged above the front end of the wet spraying trolley through the spraying adjusting assembly, one end of the feeding pipe is communicated with the concrete hopper, and the other end of the feeding pipe is communicated with a feeding port of the spraying gun. The air pressure unit is arranged on the spray gun; the air outlet direction of the air pressure unit is consistent with the spraying direction of a nozzle of the spray gun; the electric control equipment is arranged on the wet spraying trolley and electrically connected with the spraying gun, the air pressure unit and the spraying adjusting assembly. According to the PVA fiber concrete, the rebound rate can be reduced to 12% or below in the spraying operation, the good compaction effect is achieved, the construction quality is effectively improved, and the construction cost is reduced.
本发明公开了一种隧道喷射混凝土回弹率的控制装置及方法，该装置包括湿喷台车(1)、电控设备(2)、混凝土料斗(3)、送料管、喷枪(5)、风压机组(6)及喷射调节组件；混凝土料斗设置在湿喷台车的后端底部，喷枪通过喷射调节组件可转动式设置在湿喷台车的前端上方，送料管的一端与混凝土料斗连通，送料管的另一端与喷枪的进料口连通；风压机组设置在喷枪上，风压机组的出风方向与喷枪的喷嘴喷射方向一致；电控设备设置在湿喷台车上，电控设备与喷枪、风压机组及喷射调节组件电连接。本发明PVA纤维混凝土在喷射作业中能将回弹率降低至12％以下，且具有良好的压实效果，有效提高了施工质量，降低了施工成本。
Device and method for controlling rebound rate of tunnel sprayed concrete
隧道喷射混凝土回弹率的控制装置及方法
LI XING (author) / AO CHANGJIANG (author) / BAO HANYING (author) / GAO SHUQING (author) / LIU BIN (author)
2022-04-01
Patent
Electronic Resource
Chinese
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