An integrated drainage pipe structure and construction method

Abstract

The invention discloses an integrated drainage pipe structure and a construction method, comprising a water filtration section and a drainage section connected end to end, wherein the water filtration section is composed of a water filtration floral tube, a water filtration material and a non-woven geotextile for water filtration, and the drainage section It is composed of drainage outer flower tube, drainage inner flower tube, outer flower tube sealing plug, inner flower tube sealing plug and drainage non-woven geotextile; compared with the prior art, the present invention not only increases the overall drainage performance of the retaining wall, It reduces the static water pressure on the retaining wall, improves the service life of the retaining wall, and greatly avoids the blockage of the drain pipe. Even if it is blocked, it can be disassembled and washed repeatedly, and the replacement parts can be reused, which improves performance and saves later maintenance costs. .

Description

technical field [0001] The invention belongs to the technical field of engineering drainage structures and construction, and in particular relates to an integrated drainage pipe structure and a construction method. Background technique [0002] A retaining wall is a building used to support a natural or artificial fill slope to keep the soil stable. It is widely used in road, railway engineering, slope support and geological disaster control projects to support embankments or cuttings, tunnel openings, bridge ends, river banks, disaster slopes, etc. In order to drain the soil moisture behind the wall, prevent ground water from seeping down, prevent the accumulation of water behind the wall from forming hydrostatic pressure, reduce the frost heaving pressure of backfill soil in cold regions, and eliminate the expansion pressure of clay filling after soaking in water, the retaining wall needs to adopt Necessary drainage measures. At present, retaining walls generally adopt d...

AI Technical Summary

Problems solved by technology

[0003] (1) Design problems: the designer does not fully understand the terrain around the retaining wall, fails to accurately assess the natural factors, and is not accurate enough when designing the physical indicators of the wall back

The influence of the load around the wall is not considered well enough. In addition, the design thinking is solidified, and the problem of clogging of the fixed single-layer drainpipe after long-term use is difficult to solve. This leads to the fact that the drainage facilities behind the retaining wall cannot meet the actual use requirements.

[0004] (2) Construction problem: During the construction of the water filter layer at the end of the drain pipe, some of the water filter layer of the drain pipe is formed by layering gravel after the hole is formed. Insufficient knowledge of the characteristics, coupled with the inconvenience of on-site construction and low construction efficiency, this makes it difficult for the size and shape of the water filter layer to meet the design requirements during on-site construction, and the water filtration function of the water filter layer cannot be fully exerted. When it is large, the gravel will be washed away by the water flow, and the earthwork will easily block the drainage hole, thereby affecting the drainage, so the construction quality is difficult to guarantee, and it is not easy to inspect, resulting in poor water filtration and drainage performance of the drainage pipe, which cannot meet the design requirements. Affect the stability of the retaining wall and bring serious safety hazards

[0005] (3) Post-management and maintenance issues: During the long-term use of the drainage pipes and filter layers, they will inevitably be blocked by mud. Since the drainage pipes are fixed in the retaining wall, they cannot be cleaned, resulting in difficulty in filtering and drainage, affecting Durability, usability and safety of retaining walls

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