Construction system and construction method of double-layer arch support for highway soft rock tunnel
A tunnel and soft rock technology, which is applied to the double-layer arch support construction system and construction field of soft rock tunnels in highways, to achieve long service life, high reliability, and good antirust effect
Active Publication Date: 2019-11-15
ZHEJIANG BADA TUNNEL ENG CO LTD
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Problems solved by technology
[0003] The present invention aims to solve the above-mentioned deficiencies in the existing tunnel concrete walls, and provides a kind of outer layer steel arch frame and inner layer steel arch frame with good antirust effect, and the tunnel concrete wall obtained after construction has good firmness and high reliability, and can be used Long service life, easy to pour the concrete wall of the tunnel, and easy to monitor the amount of concrete poured in the pouring area during the pouring process The double-layer arch support construction system and construction method for soft rock tunnels in highways
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[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0033] Examples, see Figure 1-Figure 12 As shown, the double-layer arch support construction system for highway soft rock tunnels includes an outer steel arch 27, an inner steel arch 26, and several concrete grouting machines, as well as a top pressure detection mechanism 8 and several steel frame plates. Detachable and fixedly connected arched pouring formwork 25; the outer steel arch frame is arranged in the tunnel along the arch wall 28 of the tunnel 48, the inner layer steel arch frame is arranged in the arch hole of the outer layer steel arch frame, and the arched pouring formwork It is arranged in the arch hole of the inner steel arch; thus a tunnel arch pouring area 40 is formed between the arched formwork and the arch wall of the tunnel; several Arch antirust mechanism 23, the outer end of the arch antirust mechanism is tightly connected to th...
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The invention discloses a road soft rock tunnel double-layer arch support construction system and a construction method thereof, and relates to the technical field of tunnel wall construction. The rust-proof effect of the outer steel arch frame and inner steel arch frame is good, the sturdiness of the constructed concert tunnel wall is good, the stability is good, and the service life is long. Thesystem comprises the outer steel arch frame, the inner steel arch frame and a plurality of concrete grouting machines, and also comprises a jacking detection mechanism and an arch-shaped pouring formwork which is composed of a plurality of steel frame plates which are detachably and fixedly connected; the outer steel arch frame is arranged in the tunnel along the arch wall of the tunnel, the inner steel arch frame is arranged in the arch hole of the outer steel arch frame, and the arch-shaped pouring formwork is arranged in the arch hole of the inner steel arch frame; a plurality of arch frame rust-proof mechanisms are arranged between the arch wall of the tunnel and the outer steel arch frame; a plurality of arch frame spacing and fixing mechanisms are arranged between the outer steel arch frame and the inner steel arch frame.
Description
technical field [0001] The invention relates to the technical field of tunnel concrete wall construction, in particular to a double-layer arch support construction system and a construction method for highway soft rock tunnels. Background technique [0002] After the construction of the existing tunnel concrete walls, some of the outer steel arches and inner steel arches buried in the tunnel concrete walls will be exposed outside, resulting in easy oxidation of the outer steel arches and inner steel arches. In addition, in the existing tunnel concrete wall construction process, because it is difficult to control the amount of concrete in the pouring area, the concrete after construction is not firm enough and the service life is short. Contents of the invention [0003] The present invention aims to solve the above-mentioned deficiencies in the existing tunnel concrete walls, and provides a kind of outer layer steel arch frame and inner layer steel arch frame with good ant...
Claims
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IPC IPC(8): E21D11/00E21D11/10E21D11/18
CPCE21D11/003E21D11/102E21D11/105E21D11/18
Inventor 莫艳辉金荣耀石李沙陈毅
Owner ZHEJIANG BADA TUNNEL ENG CO LTD