Construction method of long-span channel in artificial landscape mountain

Abstract

The invention discloses a method for constructing a large-span channel in an artificial landscape mountain. The steps are as follows: 1. Constructing pile foundations on both sides of the large-span channel; 2. Excavating the cap foundation pit, chiseling off the pile head, and pouring the cap structure , so that the cap structure and the pile foundation are reliably connected; 3. Build the vertical formwork for pouring the abutment / pier wall; 5. Based on the main steel beam of the combined steel beam, build the bottom formwork and side formwork for pouring the surface concrete structure; 6. Pouring the surface concrete structure and connecting the main steel beam with the surface concrete structure ;7. Carry out all-inclusive waterproofing along the top of the surface concrete structure and the soil-facing surface of the abutment / pier wall; 8. Gradually pile up EPS lightweight materials along both sides of the long-span passage; 9. Fill the planting soil to the design elevation. The invention adopts prefabricated composite steel beams to form a skeleton, which reduces the impact of construction on existing roads.

Description

technical field [0001] The invention relates to the technical field of large-span passage construction, in particular to a construction method for large-span passages in artificial landscape mountains. Background technique [0002] In urban landscaping projects, long-span passages can meet the needs of traffic connections at both ends of the scenic spot. [0003] In structural engineering, the concept of long-span passages is not clearly defined. From experience, a single tunnel with more than 3 lanes (generally about 12m) is basically considered a long-span. At the current technical level, when the span exceeds 25m, the conventional reinforced concrete slab structure gradually becomes uneconomical. When the span exceeds 30m, the structural form must be changed to a steel composite or arch structure to meet the force requirements. [0004] However, the passages are often located on existing roads, so construction always has a considerable impact on the operation of existing...

AI Technical Summary

Problems solved by technology

At the current technical level, when the span exceeds 25m, the conventional reinforced concrete slab structure gradually becomes uneconomical. When the span exceeds 30m, the structural form must be changed to a steel combination or arch structure to meet the force requirements

[0004] However, the location of the channel is often located on the existing road, so the operation of the existing road will always be greatly affected during construction.

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