A composite embankment culvert structure with rock-stack reinforced soil

Abstract

The invention discloses a rubble stone stack and reinforced soil composite embankment culvert pipe structure which comprises a bottom rubble stone stack embankment, middle culvert pipes and an upper flexible reinforced soil embankment. The rubble stone stack embankment is the same as a conventional rubble stone stack, however, the top width of the rubble stone stack embankment is expected to be larger than 7 meters, the height of the rubble stone stack embankment is expected not to be larger than 8 meters, the flexible reinforced soil embankment is consistent with a conventional reinforced soil embankment, however, the bottom width of the flexible reinforced soil embankment is larger than 7 meters, the height of the flexible reinforced soil embankment is smaller than 6 meters, impervious geotextile is arranged on the top and at the bottom of the flexible reinforced soil embankment, and the bottom of the flexible reinforced soil embankment is provided with a drainage layer composed of flexible permeable hoses and gravel soil; sand sediment traps are arranged on the side close to natural side slopes. According to the rubble stone stack and reinforced soil composite embankment culvert pipe structure, the characteristic that the flexible reinforced soil embankment improves differential settlement of the culvert pipe and improves the longitudinal stress state of the culvert pipe is maintained, the advantage that the rubble stone stack embankment is easy to construct in a narrow position of a slope toe and low in cost is also maintained, and the rubble stone stack and reinforced soil composite embankment culvert pipe structure is mainly applied to maintain streams of low-cost roads for reaching the peak.

Description

technical field [0001] The invention relates to an embankment culvert structure, in particular to an embankment culvert structure composed of piles of rubble and reinforced soil. Background technique [0002] Radar base stations are often built on the top of small hills, for which it is often necessary to build simple roads to the top. When the simple road to the top meets a mountain stream, it is impossible to build a small bridge to cross it due to the limitation of road construction costs. The most economical way is to use the construction of rubble retaining walls and embankment culverts to pass through. Due to the scouring effect of the stream in the mountain stream, the base of the chip retaining wall to be built is often weak soil and soil. After removing the soft soil, the part of the chip retaining wall to be built often has a height of more than 10 meters. In the narrow and steep road section at the foot of the slope, building rubble retaining walls and embankment...

AI Technical Summary

Problems solved by technology

However, when building an embankment with a height of more than 10 meters using the traditional flexible reinforced embankment, the minimum width is required to be more than 7 meters, so it is difficult to construct in the narrow part of the slope foot of the steep slope section (width less than 7 meters)

[0004] Radar base stations are often built on local slopes with relatively high heights. These slopes often have a large number of slope-accumulated boulders and boulders. Using local materials to build flake embankments with boulders and boulders can reduce construction costs. When construction is carried out at the narrow part of the slope toe (width less than 7 meters) on a steep slope section, but when the height is large (greater than 7 meters), the slope of the embankment on the steep slope is prone to falling or falling deformation, and it is difficult to install culverts on the embankment of the rubble embankment

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