Shock-resistant culvert pipe with large section and circumferential stress and preparation process thereof

Abstract

The invention relates to a large-section circle stress anti-vibration culvert pipe and relative producing method, wherein, the cylinder skeleton is formed by the inner, middle and outer skeletons, while the inner and middle one are uniformly fixed with right incline cylinder tube and left incline cylinder tube which are crossed with the middle axle of skeleton; the cylinder tubes are through pre-stressed steel twisted wires; the outer one has a circular cylinder tube whose two ends are anchored on inner wall of culvert pipe; the inner wall has a auxiliary-drawing anchor connected to the inner steel twisted wire. The invention can apply the construction of large underground water feeding culvert that developed by large shield machine, the subway, etc.

Description

technical field [0001] The invention relates to a large cross-section circular center stress anti-seismic culvert and a preparation process thereof. technical background [0002] At present, there are two kinds of traditional large-scale tunnel construction techniques in China, one is the subway project constructed by large shield machines, and the other is the tunnel project constructed by manpower excavation. The internal structure of the subway project is composed of prefabricated segments into a cylinder, and a large amount of concrete is poured into the cracks with a high-pressure mortar pump. After the concrete is solidified, the formwork inside the bracket is used to pour the cylindrical concrete structure. The construction technology of large-scale tunnels excavated by hand is simpler. First, cement slurry is sprayed on the inner wall of the culvert to reinforce the lining, and the concrete structure is cast in the formwork inside the bracket. Due to the simple stru...

AI Technical Summary

Problems solved by technology

Due to the simple structure of the above two traditional conventional technologies, the performance of pressure bearing, earthquake resistance, and crack resistance is poor. In order to meet the design requirements, the amount of earth and stone excavation is increased, and the raw materials consumed are particularly high, and the construction cost is extremely high. The efficiency is extremely low, and because of the large transportation volume, it has a lot of adverse effects on the site construction, so the construction period is extremely long

Due to objective reasons, there are no engineering examples of large-scale long-distance water pipelines with an inner diameter of more than 4 meters in China.

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