Structure of reinforced soil sewer supported by bored concrete piles of mini steel tubes

Abstract

The invention discloses a structure of a reinforced soil sewer supported by bored concrete piles of mini steel tubes. A first row of the bored concrete piles of the mini steel tubes (8), a second row of the bored concrete piles of the mini steel tubes (9) and a third row of the bored concrete piles of the mini steel tubes (10) which pass through a sliding slope (2) and go deep into a non-sliding slope basement (1) are arranged along the sliding slope (2) from the top to the bottom, wherein the reinforced soil sewer (23) is dug at the upper parts of spaces among the first row of the bored concrete piles of the mini steel tubes (8), the second row of the bored concrete piles of the mini steel tubes (9) and the third row of the bored concrete piles of the mini steel tubes (10); in the reinforced soil sewer (23), backfilling sand (11) is backfilled, a waterproof geotextile (15) and a soft water-penetrating pipe (16) are arranged and backfilling gravels (12) are backfilled; and slope three-dimensional planted grass (7) is paved from a place above a roadbed platform to the third row of the bored concrete piles of the mini steel tubes (10). The structure of the reinforced soil sewer supported by the bored concrete piles of the mini steel tubes has the advantages of low application cost, smaller area occupied by construction, convenience in construction process, good construction safety and high construction speed.

Description

technical field [0001] The invention relates to reinforcement and protection of road slopes, in particular to a reinforced soil seepage ditch structure supported by miniature steel pipe pouring piles. Background technique [0002] As a kind of "small-diameter high-strength" pile, micro-steel pipe piles have been widely used in foundation pit support and slope reinforcement, especially for situations where large construction machinery cannot enter the work site. Support seepage ditches are often used for groundwater drainage and slope support in slopes and landslides. They are usually arranged longitudinally in landslides and form a support system at the slope toe and retaining walls. They are suitable for the treatment of landslides rich in groundwater, but When the thickness of the landslide mass is large, the water-rich landslide mass is often difficult to excavate seepage trenches, resulting in construction difficulties. When the landslide belongs to the sliding of the u...

AI Technical Summary

Problems solved by technology

The shotcrete reinforcement scheme with anchor bolts and hanging nets is better in construction safety, but the cost is high, and the issues of greening and groundwater drainage must also be considered, such as setting horizontal drainage holes. In addition, when the landslide body or loose accumulation body is thicker When the slope is large, it is necessary to set up anti-slide piles at the foot of the slope, and the construction of anti-slide piles will also cause safety problems

For the sliding of the upper cover layer of the bedrock, or the landslide of the road cutting side slope where the loose accumulation body is along the bedrock interface, at present, it is often resorted to by cutting the slope and unloading it, and then using the supporting seepage ditch and the retaining wall at the foot of the slope to treat it. It has the functions of support and drainage, so this scheme is an effective traditional scheme, but it has problems such as long construction period, large excavation wound, large unloading volume and easy to cause serious water and soil loss; using miniature steel pipe piles The combined structure of retaining wall and seepage ditch behind the wall is set up for treatment on the upper part of the foundation. This plan is an effective new plan, but there are also problems in the construction of retaining wall and seepage ditch behind the wall, long construction period and difficult to guarantee safety.

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