Abstract:
PURPOSE: An eco-friendly median strip having an interchange traffic accident reduction and scene improving structure is provided to improve the gaze guiding function and the road view by forming a planting space and to improve the safety by preventing an interchange traffic accident. CONSTITUTION: An eco-friendly median strip having an interchange traffic accident reduction and scene improving structure is composed of a protective wall(10), a stone layer(20), and a planting layer(30). The protective wall is formed by installing rectangular concrete blocks(11) in parallel along a road in the center of a road. The protective wall is composed of a water collection portion(14) and a drainpipe(16). The water collection portion collects the drained water and drains through a drain. The drainpipe drains the water inside the concrete block to the road and the water collection portion. The stone layer is formed within the protective wall. Soil is filled on the stone layer to plant trees.
Abstract:
PURPOSE: A device and a method for generating a line laser optical source for providing uniform illuminance to a line scan camera are provided to reduce power consumption using the small number of optical sources. CONSTITUTION: A laser light source(121,122,123) provides the light to a line scan camera by irradiating the light to an object(130). The laser passes through a plano-concave cylindrical lens(110). The plano-concave cylindrical lens disperses the laser to irradiate the line type laser with the constant width. An optical filter(100) filters the laser and includes an infrared ray barrier coating to irradiate the intensity of the laser uniformly. The infrared ray shielding rate is changed according to the distribution of the intensity of the incident laser.
Abstract:
A wide snow removing apparatus mounted on a vehicle is provided to improve the safety of a snow removing vehicle by effectively intercepting foreign materials scattered toward the driver's seat window. A wide snow removing apparatus mounted on a vehicle(1) is composed of a wide snow removing plate(2) whose width is twice the size of the front face width of the vehicle, and a cylinder unit(3) vertically revolving the wide snow removing plate. The wide snow removing plate has a scattering prevention unit(4) and a steel shovel blade(5). A shock absorbing plate(6) is installed in the lower part of the wide snow removing plate and is made of urethane.
Abstract:
A guardrail apparatus having a shock-absorbing function for an end part is provided to prevent a vehicle from being broken away from a road when a vehicle is collided against a guardrail. A guardrail apparatus having a shock-absorbing function for an end part is composed of longitudinal slots(22) which is longitudinally installed in the middle of the body of a guardrail(21) to be bent toward the side when a vehicle is collided against the end part of a guardrail, a shock absorbing bar(23) absorbing the shock energy with a vehicle, first and second fitting members(25,26) fixing the guardrail, which are separable up and down, and a support(27). A cable fixing part(30) having a fixing hole(29) is installed at one side of the guardrail, and a combining part is installed at one side of the second fitting member.
Abstract:
An integrated road management system based on digital map and a control method for the same are provided to determine state of a road and any disaster generated on the road. An integrated road management system based on digital map comprises a sensing device(1), installed at specific location of road facility, detecting and transmitting an incident situation, an integrated management server(2) displaying disaster and information of location in which the disaster occurs on the digital map, a control panel section(3) inputting control command of administrator to the integrated management server and an over-all situation display monitor(4) showing integrated road management information updated with the integrated management server.
Abstract:
A concrete composition for the package integrated bridge slab is provided to omit an additional bridge-deck paving by securing a durability capacity and inhibiting crack using only the concrete composition and to enhance a construction property and profitability. A concrete composition for the package integrated bridge slab is manufactured by combining and designing a ternary binding material consisting of cement, fly ash and a ground granulated blast-furnace slag at a standard design compressive strength of 21~40MPa. The ternary binding material comprises the 100 parts by weight of cement, the 5~20 parts by weight of fly ash and the 20~40 parts by weight of ground granulated blast-furnace slag.
Abstract:
A bridge repairing method is provided to carry out repairing and waterproof works on a bridge slab of a bridge at the same time by applying repairing material including MMA(Methyl Methacrylate) resin to broken part of the bridge slab. A bridge repairing method includes the steps of: removing a broken part of a bridge slab and a slab pavement thereon; applying a repairing material(100) including MMA(Methyl Methacrylate) resin to the broken part; and paving a new slab pavement(21) on the repaired part of the bridge slab. Viscosity of the MMA resin ranges from 50 to 300 cP. The MMA resin contains 67~75w% of MMA, 10~20w% of PMMA, and 10~20w% of Butyl Acrylate.
Abstract:
A road structure for reducing the heat island phenomenon is provided to exclude the necessity of artificial water spray work and to restrain a rise in temperature on a road surface effectively. A road structure for reducing the heat island phenomenon comprises a perforated pipe insertion groove(110) formed along a traffic lane of a road, a perforated pipe(100) inserted to the perforated pipe insertion groove and installed to supply water toward a water supply layer, filler(120) made of vegetative soil and filling up a remaining space of the perforated pipe insertion groove, a cover member(130) closing an opening of the perforated pipe insertion groove and provided with a through hole for vegetation, a housing member for vegetation provided with a housing space of plants and an inflow water through hole and inserted to the upper part of the perforated pipe, a surface layer(200) formed by porous asphalt, a water supply layer(300) installed to the lower part of the surface layer and made of a water permeable and movable material to supply water to the surface layer, and an impermeable layer(400) made of an impermeable material and formed on the lower part of the water supply layer.