Method and formwork for rapid lining of city gate hole-shaped tunnel
A technology of gate hole shape and formwork, applied in tunnel lining, shaft lining, tunnel, etc., can solve the problems of affecting tunnel lining speed, affecting traffic, and low formwork utilization efficiency, and achieve the effect of improving lining utilization efficiency and construction efficiency
Pending Publication Date: 2020-07-03
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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[0046] 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.
[0047] 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 provided by the embodiment of the present invention; figure 2 Schematic diagram of the structure of the capping template provided for the embodiment of the present invention; image 3...
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Abstract
The invention discloses a formwork used for rapid lining of a city gate hole-shaped tunnel. The formwork has the advantages of improving the tunnel lining construction efficiency and the lining utilization efficiency. The formwork for rapid lining of the city gate hole-shaped tunnel has an arching effect, and a side wall formwork and surrounding rock are connected by high-strength bolts, so that the formwork can achieve self stability when concrete is poured without external support. Meanwhile, the bottom part of the side wall formwork is closely combined with the bottom surrounding rock by using foundation bolts, and the upper load is transferred to the bottom surrounding rock, so that roles of pouring, vibration and the like are played without external support. The invention further provides a method for rapid lining based on the formwork for the rapid lining of the city gate hole-shaped tunnel.
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. 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 entire tunnel. Lining speed. [0003] ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E21D11/10
CPCE21D11/10E21D11/105
Inventor 张金良曹国利王美斋张钧睿陈丹田丰
Owner YELLOW RIVER ENG CONSULTING