Quick lining template and method suitable for egg-shaped tunnel of existing reinforced concrete base plate
A concrete floor and formwork technology, which is 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 achieves the effect of improving construction efficiency and lining utilization efficiency
Pending Publication Date: 2020-06-12
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
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[0045] 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.
[0046] Please refer to Figure 1 to Figure 5 , figure 1 Schematic diagram of the structure of the formwork suitable for the rapid lining of the egg-shaped tunnel with the existing reinforced concrete floor provided by the embodiment of the present invention; figure 2 Schematic diagram of the structure of the capping template provided for t...
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The invention discloses a quick lining template suitable for an egg-shaped tunnel of an existing reinforced concrete base plate. The advantage is that the construction efficiency of the tunnel liningand the utilization efficiency of the lining are improved. Because the quick lining template suitable for the egg-shaped tunnel of the existing reinforced concrete base plate has an arching effect, ashoulder template and a surrounding rock are connected by high-strength bolts, so the template can realize self-stability without external supporting when pouring concrete. Meanwhile, anchor bolts areadopted so that a foot template is tightly combined with the bottom reinforced concrete base plate, the upper load is transferred to the bottom reinforced concrete base plate, and the pouring, vibration and other load effects can be born without external supporting. The invention further provides a quick lining method for the quick lining template suitable for the egg-shaped tunnel of the existing reinforced concrete base 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 formwork and method suitable for egg-shaped tunnels with existing reinforced concrete bottom plates. Background technique [0002] The egg shape is a relatively common type 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 saf...
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IPC IPC(8): E21D11/10E21D11/08E21D11/15E21D11/18
CPCE21D11/08E21D11/10E21D11/152E21D11/18
Inventor 张金良曹国利王美斋陈丹张钧睿田丰
Owner YELLOW RIVER ENG CONSULTING