A prefabricated road in cold regions and its construction method

Abstract

The invention discloses a prefabricated road in a cold region and a construction method thereof, comprising a reinforced concrete slab and a sealing cement plug; the reinforced concrete slab is a four-square structure, the bottom of the four-square structure is a cavity, and the top is connected to the cavity The hoisting hole; the four side walls of the four-square structure are provided with a falcon and the tenon groove, and the size and shape of the falcon and the tenon groove match; the sealing cement plug is connected with the hoisting hole; a plurality of reinforced concrete The slabs are connected to each other by corresponding trusses and tongues and grooves to form a prefabricated road. The prefabricated road has the characteristics of short opening time, short construction period, strength increasing with time, convenient hoisting and long-term availability.

Description

Technical field [0001] Technical Field The present invention is a temporary road, in particular, relates to a method for assembling cold area type and construction of roads. Background technique [0002] With the continuous development of my country's transport services, road mileage increased year by year, but its development is not balanced. Infrastructure, especially road construction is more intensive in the east, while the Northwest, Southwest and other places quite underdeveloped, the Tibet Autonomous Region now has not been a highway, reason, mainly influenced by the following factors: (1) Qinghai-Tibet Plateau other representatives of the alpine zone, great temperature difference between day and night, it is still lower than in the best season in the early morning temperature of minus construction, are not suitable for hot mix asphalt paving; (2) a rapid process of paving the rain and snow weather, also had an impact on its construction. [0003] Meanwhile, in the process...

AI Technical Summary

Problems solved by technology

Infrastructure construction, especially road construction, is relatively intensive in the east, while the northwest and southwest are quite underdeveloped. The Tibet Autonomous Region still does not have a highway. The reasons are mainly affected by the following factors: (1) Qinghai-Tibet Plateau In other alpine regions represented by the cold weather, the temperature difference between day and night is huge, and the temperature in the morning is still below zero in the best construction season, which is not suitable for the paving of hot mix asphalt mixture; (2) rapid rain and snowfall during the paving process, also affected its construction

[0003] At the same time, in the process of emergency rescue and disaster relief and military operations, it is often necessary to build passable roads in a short period of time. Traditional asphalt pavement and cement concrete pavement are not suitable for such cases due to their complicated construction technology and long road forming period. The demand for roads cannot be well met, and sometimes they are put into use when the road strength is not up to the standard or the maintenance period is not over due to the urgent need to open to traffic. The overall destruction of the road creates potential safety hazards, and at the same time poses a huge challenge to the service performance and service time of the road. The damaged road surface is difficult to guarantee road traffic. If it can guarantee the completion of rescue or military operations, it is also difficult to reuse and form construction waste. A waste of construction resources while affecting the environment

[0004] Considering the existing technology, the heating, mixing and transportation of asphalt mixture for hot-mix restoration requires special equipment, which consumes a lot of energy and has high construction requirements, and is not suitable for pavement repair under wet conditions; although cold-repair asphalt mixture does not require special Construction equipment can effectively shorten the opening time, but the long-term durability of the material is insufficient, and it is not suitable for road surface repair under wet and water conditions, and can only be used for emergency use

There are also some prefabricated road slabs in the prior art, but the road slabs in the prior art have defects such as non-adherence of the base layer of the surface layer, stress concentration at the bottom of the surface layer, poor interlocking ability of the road surface, and inability to adapt to heavy-duty traffic.

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