Method for constructing multi-thickness rockfill embankment with lateral confinement and layering functions

Abstract

The invention discloses a method for constructing a multi-thickness rockfill embankment with lateral confinement and layering functions, belongs to the technical field of road construction, and solves the problems of high possibility of uneven settlement after construction, pavement cracking, high construction cost and the like in the conventional rockfill embankment. The method comprises the following steps: processing a foundation bed; measuring and lofting; carrying out rock excavation and controlling the particle size; and carrying out filling construction, wherein the filling construction process comprises the steps of inserting a rod and hanging a line, building on a side slope, spreading rockfill embankment main aggregates, and laying stone ballasts. In the effective width range of a roadbed, artificial dry building rubbles of 0.8-1.5 m are arranged on each side; filler capable of forming a plate body is filled within the roadbed range of 1.5 m; the layering thickness is 30-80 cm; and the rockfill embankment is divided into a plurality of circulation layers according to the total height of the rockfill embankment. The rockfill embankment has the advantages of attractive appearance, quality guarantee, short filling cycle, low cost and high working efficiency, is suitable for temporary foundation treatment and the like of civil engineering, roads and novel scaffolds, and has high promotional and economic benefits.

Description

technical field [0001] The invention belongs to the technical field of road construction, in particular to a roadbed construction method. Background technique [0002] Rock-filled embankment is a common form of roadbed structure in highway engineering. In areas or mountainous areas where rocks are widely distributed, rock-filled embankment is the main structure for road excavation and filling. Under the action of live load, the rock-filled embankment of ordinary structure will creep and deform, which is prone to uneven settlement after construction, local settlement, uneven damage to the pavement base layer, and cracking of the pavement; it is difficult to match the thickness of the same layer of particles during construction, and large particles The cost of solving small difficulties is high, and the loose structure formed by the overlapping of small particles is not conducive to the stability of the embankment; the vibration and rolling can easily loosen the stones at the ...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing stone-filled embankment is prone to uneven settlement after construction, resulting in cracking of the pavement, as well as the difficulty of matching the size of particles during construction, difficulty in solving large particles, loose overlapping of small particles, unstable embankment, and problems during rolling. The side slope stones are easy to loosen and spray outside, which causes the problem of increasing the cost of repair and the hidden danger of compaction, and the problem that the road bed adopts the stone filling road to disperse the force through friction and the difference in the design plate structure affects the whole life cycle time of the project. The present invention A construction method for rockfill embankment with confinement layers and multiple thicknesses is provided, the technical scheme of which is as follows:

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