Method for building integrated cantilever structure composite road adapted for precipitous mountainous area

Abstract

The invention discloses a construction method of an integral overhanging structure compound road, which is suitable for steep mountainous areas, wherein reinforcement concrete columns and walls are cast along the road in certain interval, overhanging beams are arranged on the columns and are cast into one part with the columns and are fixed with the mountains, longitudinal beams and overhanging beams are cast into one part, a pre-made reinforcement concrete slab is laid on the overhanging part of adjacent overhanging beams and is cast into one part with the overhanging beams, the upper surface of the slab is laid on the road surface, the overhanging mountain slope is laid on the reinforcement concrete road surface to assist setting and construction. The construction process of the invention avoids deep cut and high fill, forms road embankment by using whole-casting retaining walls of columns and walls type within the road bed range which is identified and stabilized, uses the overhanging structure to compensate the width-wanting parts of the road; ensures safety, reliability, endurance, reduces the damage on the natural environment as much as possible, does least disturbance on the existing slopes, sustains the slopes self-stabilization, reduces construction quantity, lowers construction difficulty, saves occupancy area, and has good combined technical, economy and social benefits.

Description

technical field [0001] The invention belongs to the field of building structures and road engineering, and in particular relates to a method for building composite roads with an integral suspension structure suitable for steep mountainous areas. Background technique [0002] With the rapid development of the market economy, traffic conditions have played an increasingly important role in the development of the economy. There are many mountainous areas in many provinces and regions in my country, and the construction of mountainous roads is very difficult. Most of the original mountainous roads are low-grade roads with limited traffic capacity, which affects economic development. Therefore, it is necessary to build new roads or widen the original mountainous roads. In the prior art, the new construction or widening of roads in mountainous areas generally adopts cutting and widening on the side of the mountain, or filling soil or building retaining walls on the side of the dit...

AI Technical Summary

Problems solved by technology

The method of slope cutting on the side of the mountain has the following disadvantages for new construction or widening of roads in steep areas: the height of the slope is large, the amount of work is large, and the investment is high. It may cause new collapses, new landslides and other disasters on the originally stable inner slope, and damage the natural environment. ecosystem

The method of building retaining walls is simple for new construction or widening of roads in steep sections, and the cost is low under certain conditions, but it has the following disadvantages: the height of the retaining wall can reach tens of meters, and when it is too high, it needs to be built in different stages. The number of masonry retaining wall projects is huge, and the excavation work is large, resulting in the interruption of existing roads or great damage to the natural stability of the original slope. If the anchor cable retaining wall scheme is adopted, the cost is high, the construction is difficult, and the natural landscape is changed. greening

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