:: Przegląd tematu - State Road 207 k0 ~ k305 Snow Disaster Prevention

nrzxfquxq

State Road 207 k0 ~ k305 Snow Disaster Prevention Practice section of highway

Low, low road embankment sections in the account for a large proportion of the whole. Low Subgrade snow snow blocking the main factors, the accumulation of snow on the road can not all be blown away by the traffic caused by snow and ice or compacted snow after the impact of vehicular traffic Leng. 1.2 Where is the human factor influences the impact of resistance on the highway of snow, mainly in the posterior surface of snow mold {Huan go before the snow is not Tornado. Rolling on the highway caused by vehicles on the road Snow Grains accumulation phenomenon. Snow on the roads by driving after rolling, there rut, rut formation of the edge of the high snow snow Leng. The wind blows the snow after driving only squeeze can not be blown away. Snow Grains carried by the wind will be deposited in the rut, the be filled by the vehicle rolled repeatedly, gradually deepening rut. Snow Grains continued deposition, a lot of snow accumulation over time on the road, blocking the formation of 2 highways snow snow resistance and the use of the type of treatment works under the road of snow blocking the effects of different factors, in the \principle. State Road 207 in recent years done a lot of snow blocking the road of governance. And received good results forms of governance are divided into \2.1 Guide \State Road 207 k17-454, k73 508, etc. set up ten \Wind speed up the embankment shallow trough \Snow Grains carried across the shallow groove along the Embankment streamlined deposition or the wind. According to field observations, not only speed up the flow after the snow will not carry their own Snow Grains deposited on the road,belstaff italia, but also blown away the snow on the road. Wind speed up the embankment shallow trough \flow from this pipeline out of air near the ground floor is flat, the wind speed increases than before entering the pipeline. Snow Grains can not be stopped on the road product, remove the snow blocking roads. 2.2 \Snow set mortar rubble retaining wall, soil retaining walls and snow board gear and other resistance snow snowbank projects. Both sides of the wall or embankment forming the weak vortex velocity zone, lower snow flow speed, it carried a lot of Snow Grains deposited on the side wall or embankment of Korea, the air will be purified. When the air arrives from the wall or embankment at the shoulder, the wind speed has recovered, so the air is not saturated with Snow Grains can also take away some snow on the road. According to field measurements. The retaining wall of 1.6m high maximum blocking snow snow was 22m. / M. Snow resistance construction convenient, low cost,timberland portugal, can improve driving visibility and wind speed increased shoulder. 2.3 \State Road 207 k9-550, k38 +740, k72 +300,GHD glätteisen Deutschland, etc. or unilateral side of the open section of road in Laguna k60-. ZOO construction of the Des Voeux Road, etc., that use \Section is the so-called open excavation or semi-fill subgrade side or both sides of the widened 10 ~ 15m. Dug under 60cm, and the slope in the open on the two deleted by grading the slope of 1:5. Main purpose is to increase the snowdrift in the excavation section of the flow of room, so that snow does not flow in the blocked section. Low-speed zone can not form the vortex. Difficulties on the part of the terrain, surface features and other factors which can not take control measures limit of snow blocking road,ugg stiefel, change the line to take a temporary solution to build snow Voeux Road stop. 3 on the recommendations for future prevention and treatment of snow blocking snow ① existing facilities to strengthen the conservation and management. State Road 207 set are the various anti-snow facilities, debris structure. Field research results show that with the increasing service life, some facilities have been severely damaged (such as: soil Wall collapsed, mortar rubble retaining wall of snow was artificially destroyed, shallow groove embankment erosion of wind speed, etc.). Lost control of snow features. Highway maintenance departments should strengthen the prevention and treatment of various facilities maintenance and management of snow. Some state of disrepair of the facilities must be repaired as soon as possible, so that all facilities are to play their proper role in the prevention and treatment of snow. ② conduct biological studies of snow. Snow should be carried out biological control research and practice. If the snow blocking roads on both sides of the road planted a reasonable structure,MBT Fanaka scarpe, layout properly belt to reduce wind speed, wind and snow as far as possible carry Snow Grains block flow in the forest and improve the ability of anti-Xuelin the snow. Received date: 2001. Children to 30 (secondary series Chaijin Yi)