The method of construction of the ice crossing

 

(57) Abstract:

The invention can be used in road construction during the construction of the ice crossing rivers and lakes in the North. The method of construction of the ice crossing is carried out by cleaning from snow and natural numerazione ice with the subsequent formation of the terminal strip when the ice thickness 9-10 cm, with the ice surface of the strip of the roadway crossing clear of snow with each pass of the snow atmospheric sludge, and prolonged snow precipitation produce a circular strip of snow, maintaining the ice surface in pure form, with snow raked to the curb on both sides of the lanes and creates layers of insulation to prevent from skidding and education lanes with a convex arched shape in cross section, at achievement of ice thickness, sufficient for the passage of vehicles on the roadway stripes create a rough surface. The technical result is to increase the carrying capacity of the terminal and the extension of the period of its operation, as well as the creation of safe conditions of traffic. 2 C.p. f-crystals.

A known method of construction of the ice crossing, including the freezing of natural ice surface, the formation of lanes for traffic and snow roadsides [1].

The disadvantage of this method of construction of the terminal is insufficient load-carrying capacity due to the uneven thickness zamorajivanie ice along the length of the terminal, resulting due to the dynamic effects of traffic load on the ice in places on the borders of the differences in the thicknesses of the ice cracks, which leads to the formation of a short length of the ice, fully perceiving themselves the impact of traffic load and as a consequence quickly destroyed.

Use as an ice crossing natural ice cover of the reservoir, but the buildup of ice thickness occurs slowly and evenly over the entire area of the ice surface, causing the ice crossing can be used for the passage of heavy vehicles only when reaching the ice thickness is not less than 120 cm, and this occurs when the natural freezing of the pond before the end of January - mid February.

Closest to the claimed is a method of creating ice crossing at which dostizheniya amount of work on clearing snow can be applied partial purification in the form of combs, and to protect the ice surface from wear and elimination of slippage of the cars on the strip of terminal leave the snow layer 15 cm thick (loose) or 10 cm (when Packed). When this condition occurs only a slight increase in ice thickness (0.5-8 cm/day) [2].

The disadvantage of this terminal is low strength, and is recommended at high intensity close to the ice surface safety transverse flooring boards.

The objective of the invention is to increase the carrying capacity of the terminal and the extension of the period of its operation, as well as creating a safe space traffic.

The problem is solved due to the fact that the method of construction of the ice crossing by cleaning from snow and natural numerazione ice with the subsequent formation of the terminal strip when the ice thickness 9-10 cm ice surface lanes crossing clear of snow with each pass of the snow atmospheric sludge, and prolonged snow precipitation produce a circular strip of snow, maintaining the ice surface in pure form, with snow raked to the curb on both sides of the lanes and create Soi cross-section, at achievement of ice thickness, sufficient for the passage of vehicles on the roadway stripes create a rough surface.

Layers of insulation can be formed from snow or resilient polymeric foam, and the width of the layer is carried out is equal to the width of the roadway ice crossings, and at subzero temperatures rough surface on the roadway lanes can be achieved by scattering of salt, and after the appearance of holes in the ice to produce a scattering of sand particles, filling cavities, and during the thaw scatter only sand particles on the net without snow ice surface of the roadway.

The method of construction of the terminal is as follows: when the thickness of the natural ice cover size 9-10 cm produce the strip on the roads from snow, and then the operation is repeated at each sniegsanas, shoveling the snow on the side of the roadway, creating layers of insulation. At the same time from the impact of large negative temperatures on the icy surface of the carriageway, devoid of the insulating layer of snow, there is a natural freezing ice (increased thickness). On the roadside under a layer of sleep is the ITA's on viscous base (water), the cross-sectional change of its thickness (the minimum on the roadside up to the maximum on the axis of the strip) occurs smoothly with points of inflection (with convexity to concavity) on the edges of the lanes.

Such a "lenticular" the surface of the lanes is obtained in the longitudinal direction (along the axis of the terminal) due to the fact that the banks caused permanent thermal processes coastal soil and groundwater slew rate of ice thickness less than in the middle of the river or lake.

Upon reaching the ice thickness sufficient to pass machines, ice cover give a rough surface or by scattering salt on the road and after the appearance of holes in the ice to produce a scattering of sand particles, filling hollows in the ice and versaldi in him, resulting in a rough surface of the roadway, or the placers only sand particles on the net (without snow) ice surface of the roadway during the period of thaw.

In the absence of snow layers of insulation on the side of the roadway formed of resilient polymeric foam, and the width of the layer is the same as the width of the roadway ice crossing.

In addition, the carrying capacity of this terminal is 3-5 times higher than known thickened arched form, and traffic safety at this crossing is high, because the adhesion coefficient reaches a value of 0.6-0.8.

1. The method of construction of the ice crossing by cleaning from snow and natural numerazione ice with the subsequent formation of the terminal strip when the ice thickness 9 - 10 cm, characterized in that the ice surface of the strip of the roadway crossing clear of snow with each pass of the snow atmospheric sludge, and prolonged snow precipitation produce a circular strip of snow, maintaining the ice surface in pure form, with snow raked to the curb on both sides of the lanes and creates layers of insulation to prevent from skidding and education lanes with a convex arched shape in cross section, at achievement of ice thickness sufficient for the passage of vehicles on the roadway stripes create a rough surface.

2. The method according to p. 1, characterized in that at subzero temperatures rough surface on the roadway lanes carried by placer solaini scatter only sand particles on the net without snow ice surface of the roadway.

3. The method according to p. 1, characterized in that the layers of insulation formed of resilient polymeric foam, and the width of the layer of insulation perform equal to the width of the roadway crossing.

 

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