In the transportation construction of counties, townships, villages and towns, rural roads, as an important link connecting urban and rural areas, are of great importance for their safety and stability. In order to ensure people's safe travel, the setting of traffic security anti-collision corrugated guardrails is particularly important.
Roads such as counties and townships, villages and towns belong to the third and fourth level of rural roads, and when setting up traffic security anti-collision corrugated guardrails, the selection of two waveforms of B-level or C-level guardrails can meet the anti-collision protection requirements of ensuring people's safe travel.
The main difference between these two types of anti-collision corrugated guardrails is that the thickness of the plate is different, the B grade uses a 3.0mm guardrail board, and the C class uses a 2.5mm guardrail board, which is matched with a 114*4.5mm round pipe column, and the connectors are bracket type, which are spliced with each other through different types of bolts to form a group of continuous beam-column guardrails.
Generally speaking, the ordinary section of the rural road uses a standard plate with a length of 4320mm, except for the splicing part, the effective distance of the guardrail is 4 meters, and the spacing of the column is 4 meters to meet the daily protective effect.
For the road section that needs to be strengthened, a hole is punched in the middle of the 4-meter board to make a reinforcing plate, and a column is installed at 2-meter. If there is a large curvature of the curve, it may also be necessary to bend the guardrail plate to increase the density of the column installation, so that the guardrail plate can be more in line with the road curve, and increase the protection strength and aesthetics.
However, recently received from the customer of the rural road guardrail drawings, are 2320mm long guardrail board, a whole road is a 2-meter board splicing of the reinforcing section, and in some places also use the setting of a 1-meter column. In fact, this installation method can also be understood, some rural roads are many curves and large arcs, 4 meters long guardrail plate can not be bent into the arc required by the road, and it is not convenient to install, and 2 meters long guardrail plate can better fit the road curve, so that the guardrail can be perfectly transitioned.
Although the use of 2-meter guardrail board in the curve part can increase the aesthetics of the guardrail, in the straight section, the same 2-meter installation of a column, in terms of cost, the price of comprehensive materials, the use of 2-meter guardrail board is more than 10 yuan/meter higher than that of 4-meter reinforcing plate.
Therefore, in the construction of rural roads, we should reasonably choose the type and setting method of guardrails according to the actual situation of the road. In places where the curve arc is large, 2-meter plates can be used for splicing to better fit the road curve; In the straight section, the use of 4-meter plates should be prioritized to reduce costs and improve crashworthiness. At the same time, we should also pay attention to the installation quality of guardrails to ensure that they are stable and reliable, and provide safety for people's travel.
In short, the traffic safety construction of rural roads is a systematic project, which requires us to start from many aspects to comprehensively improve the safety and stability of roads. By setting up appropriate traffic security and anti-collision corrugated guardrails and strengthening the construction and maintenance management of transportation facilities, we can provide people with a safer and more comfortable travel environment.