Construction method for 360-degree rotary bend of sled track of snow vehicle

Abstract

The invention discloses a construction method for a 360-degree rotary bend of a sled track of a snow vehicle. The method comprises the steps that after a bearing platform is constructed, an earthworkpouring cushion layer is backfilled; a ground anchor is pre-buried in the cushion layer, related positioning lines of an inclined cylinder are released on the cushion layer, a fastener type steel pipeframe is adopted for installation of a rotary bend U-shaped groove formwork and erection of a supporting system, and inclined cylinder steel bars are bound and pulled through a chain block and a steel bar drag hook; and the inclined cylinder formwork is installed, the supporting system is erected, the inclined cylinder formwork is fixed through three hoops, inclined cylinder concrete pouring is conducted, the U-shaped groove formwork supporting system is reinforced, rotary bend U-shaped groove concrete pouring is conducted, and construction of the rotary bend is completed. According to the method, various formwork supporting parameters of the inclined cylinder are extracted through an inclined cylinder BIM model, the inclined cylinder supporting system is erected according to the formworksupporting parameters and fused with the U-shaped groove supporting system, a formwork supporting system of the rotary bend is formed, the concrete pouring process of the inclined cylinder and a U-shaped groove is set, efficient construction of the rotary bend is achieved, and the construction quality of the rotary bend is ensured.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a construction method for a 360-degree roundabout of a bobsled track. Background technique [0002] The 360° roundabout of the snowmobile and sled track is the most difficult project in the design, construction and construction process of the snowmobile and sled course. During the race, the snowmobile and sled event on this track is the fastest and highly professional competition event, which is very enjoyable. The U-shaped trough foundation on the top surface of the 360° roundabout track is as high as tens of meters from the ground, which requires high-support formwork scaffolding support, and the terrain at the bottom of the support frame varies greatly, making it difficult to erect the frame; the U-shaped trough passes through the inclined cylinder Support, inclined cylinders are supported on the caps, and each cap is equipped with a set of inclined cylinders...

AI Technical Summary

Problems solved by technology

The U-shaped trough foundation on the top surface of the 360° roundabout track is as high as tens of meters from the ground, which requires high formwork scaffolding support, and the terrain at the bottom of the support frame varies greatly, making it difficult to erect the frame; the U-shaped trough passes through the inclined cylinder Support, slanted cylinders are supported on the caps, and each cap has a set of slanted columns, the length and inclination angle of each slanted cylinder are different, so it is difficult to reinforce the slanted columns, and it is difficult to support the formwork

Moreover, the 360° roundabout is the only one in the world, and there is no existing technology for reference. There are many problems in the formwork and pouring of its U-shaped groove and inclined cylinder.

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