Rapid lining method and formwork for gate hole-shaped tunnel with reinforced concrete bottom plate
A technology of gate hole shape and concrete floor, which is applied in the direction of tunnel lining, shaft lining, tunnel, etc., can solve the problems of affecting tunnel lining speed, affecting traffic, and low formwork utilization efficiency, and achieves the effect of improving construction efficiency and lining utilization efficiency
Pending Publication Date: 2020-06-05
YELLOW RIVER ENG CONSULTING
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Problems solved by technology
The speed of the tunnel lining has a great impact on the progress and safety of the project. At present, steel formwork trolleys are mostly used for the tunnel lining formwork. On the one hand, a large number of external supports are required, which affects the traffic in the tunnel during the construction period.
On the other hand, the poured concrete needs to reach a certain strength before the formwork can be dismantled and used for the next pouring lining section. In addition, affected by the cost of the steel formwork trolley and the traffic in the tunnel, the utilization efficiency of the formwork is not high, which directly affects the safety of the entire tunnel. Lining speed
Method used
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[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0043] Please refer to Figure 1 to Figure 5 , figure 1 Schematic diagram of the structure of the formwork used for the rapid lining of the city gate tunnel with reinforced concrete floor provided by the embodiment of the present invention; figure 2 Schematic diagram of the structure of the capping template provided for the embodiment of t...
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The invention discloses a rapid lining formwork for a gate hole-shaped tunnel with a reinforced concrete bottom plate. The formwork has the advantages of improving tunnel lining construction efficiency and lining utilization efficiency. The rapid lining formwork for the gate hole-shaped tunnel with the reinforced concrete bottom plate has an arch effect, high-strength bolts serve as connecting parts to connect side wall formworks and surrounding rock, and therefore the formwork can achieve stability without external support when concrete is poured. Meanwhile, by the adoption of foundation bolts, a foot formwork and the bottom reinforced concrete bottom plate can be combined closely, the load on the upper portion is transferred to the bottom reinforced concrete bottom plate, and with no external support, the effect of bearing loads such as pouring and vibrating can be achieved. The invention further provides a rapid lining method for the gate hole-shaped tunnel with the reinforced concrete bottom plate.
Description
technical field [0001] The invention relates to the technical field of steel pipe sheet formwork for tunnels, in particular to a rapid lining method and formwork for city gate tunnels with reinforced concrete bottom plates. Background technique [0002] The city gate shape is a relatively common shape in hydraulic tunnels. The speed of tunnel lining has a great influence on the progress and safety of the project. At present, steel formwork trolleys are mostly used as formwork for tunnel lining. On the one hand, a large number of external supports are required, which affects the traffic during the construction period in the tunnel. On the other hand, the poured concrete needs to reach a certain strength before the formwork can be dismantled and used for the next pouring lining section. In addition, affected by the cost of the steel formwork trolley and the traffic in the tunnel, the utilization efficiency of the formwork is not high, which directly affects the safety of the e...
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IPC IPC(8): E21D11/10E21D9/14
CPCE21D11/102E21D11/107E21D9/14
Inventor 张金良曹国利王美斋田丰吕小龙陈丹
Owner YELLOW RIVER ENG CONSULTING