High-fill embankment structure and construction method

Abstract

The invention discloses a high-fill embankment structure and a construction method. A plurality of layers of drainage blind ditches and geogrids among the layers of drainage blind ditches are arrangedin an embankment structure body from bottom to top; each layer of drainage blind ditch is a drainage blind ditch net with a grid structure formed by longitudinal blind ditches and transverse blind ditches which are intersected longitudinally and transversely, a side length of a grid is 12-15m, and a distance between the upper layer and the lower layer of the adjacent drainage blind ditches is notmore than 5m; each layer of geogrid is laid on a plane which is not less than 50cm away from the lower part of the upper drainage blind ditch layer in a full-plane manner; and foot protecting walls or drainage gullies are arranged on the two transverse sides of an embankment respectively. Accumulated water is drained by arranging longitudinal solid blind ditches and transverse solid blind ditches, settlement deformation of the high-fill embankment is prevented by arranging the geogrids, and engineering safety is improved; and compared with traditional measures such as adopting well-graded sand gravels, laying reinforcing meshes between layers, arranging load-reducing culverts and the like, the structure and the method have great economic advantages, and problems of excessive settlement and unsmooth embankment drainage can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of building engineering construction, in particular to the technical field of road drainage engineering construction, and in particular to a drainage structure arrangement and construction method of a high-fill embankment. Background technique [0002] At present, due to the overfilling of high-fill embankments, the settlement period is short, and the construction period is affected by precipitation and construction technology. Large embankment settlements often occur in the later stages, resulting in embankment diseases. Embankment filling is generally filled with soil and stone, which is greatly affected by water, and unsmooth drainage will cause landslides, which will affect the later operation. [0003] Existing solutions include: using well-graded sand and gravel, laying steel mesh sheets between layers, setting load-reducing culverts and other measures. Although these methods can solve the disadvantage...

AI Technical Summary

Problems solved by technology

[0002] At present, due to the overfilling of high-fill embankments, the settlement period is short, and the construction period is affected by precipitation and construction technology, etc., and large embankment settlements often occur in the later period, resulting in embankment diseases

Embankment filling is generally filled with soil and stone, which is greatly affected by water, and poor drainage will cause landslides, which will affect the later operation

[0003] Existing solutions include: using well-graded sand and gravel, laying steel mesh sheets between layers, setting load-reducing culverts and other measures. Although these methods can solve the disadvantages of high-fill roadbeds, these methods require large investment and difficult construction. poor economic performance

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