道路交通外文文翻译公路防撞护栏体系.docx

1、道路交通外文文翻译公路防撞护栏体系ROADGUARD BARRIER SYSTEMThe roadguard barrier, 6 feet long, 3.5 feet high, 2 feet wide at base, with its patented design, is the only barrier of its type that self locks without the need for additional assistance. No barrier, other than the roadguard barrier, can self-lock without t

2、he need of additional apparatus, such as a cable, strap, rod or coupler. In addition, the roadguard barrier, because of its unique patented design allows for curved configurations of up to 15 degrees at each barrier connection, in either direction, while remaining locked to the adjacent barrier. No

3、other barrier can make that claim! Also, the roadguard barrier is designed for the addition of signs screens and flashers because of the built in slots for such devises and is easier to maneuver because of its weight and two carrying slots contained in each barrier. The patented interior design of t

4、he roadguard barrier prevents bulging and keeps its sides straight and trim while maintaining a weight of only 125 lbs. Empty but a secure 1675 lbs. The roadguard corner connector barrier is designed for use with the roadguard barrier as a connecting barrier unit to allow for either left or right an

5、gle turns, or both simultaneously, of between 75 to 105 degrees while locking together all connecting barriers. In addition, the corner connector barrier allows for the initial roadguard barrier line to continue after connecting barrier line extensions to the left and/or the right. Lightweight and e

6、asy to handle, the roadguard corner connector barrier is 2 feet in length and width and 3.5 feet in height, designed to correspond with the roadguard barrier. Directly beneath the filling hole of the roadguard corner connector barrier is a pin extending upward internally from the bottom of the barri

7、er to secure firmly a pole or pipe that can be inserted downward through the filling hole. Said pole or pipe can be used to attach signage, privacy screens or security panels that extend above the barrier line height. The roadguard highway assembly is a reinforcement system for highway barriers that

8、 distribute and transfer forces that may occur upon impact of a vehicle so that the overall highway barrier system will have greater strength and integrity. The roadguard highway assembly system meets all NCHRP 350, Test Level 3 Truck and Car Crash Test Specifications, and is approved by the FHWA fo

9、r use on highway construction projects where the posted vehicle speed in a work zone can be as high as 62-mph/100kph. The roadguard highway assembly is a fabricated steel assembly designed to easily mount to the roadguard barriers. This ASSEMBLY provides two distinct functions: Providing a strong an

10、d resilient outer surface to resist the wheel and bumper of a striking vehicle, and to link the barriers more securely to each other and create a very robust linear system such that the force of a striking vehicle will be distributed over many barriers, minimizing the lateral movement at the point o

11、f impact.The roadguard security panel is used for perimeter security, safety, crowd control and general site protection. These 6 x 4 chain link fence panel units install firmly on a roadguard barrier to give a stable 8 foot high continuous, unbroken protective fence for all security and safety needs

12、. Optional solid material, screen, or interwoven chain link panels are available. Our study area lies in the north of modern delta of the Huanghe River and it was formed by the river way of Diaokou in 1964-1976.The Huanghe River has the largest content of silt and may transport about 10.6Gt/a silt i

13、nto the Bohai sea. The sub-delta was built quickly under the supply of abundant sediments. The rapid accumulation in the delta always makes the river course to be diverted frequently. The abandoned delta would be eroded and retreated rapidly after diversion because the lack of supply. The gradient o

14、f the coastal slope in the delta is very gentle, the water depth is only 10m in the place about 10km apart from the coastal bank. A few of kilometers-wide tidal flat would be exposed during ebb tide that makes us work on the tidal flat conveniently. The sediments on the tidal flat are mainly compose

15、d of fine sands, silt and clay.With the development of economic construction, various kinds of modernized traffic facility, is it pay to set up such as expressway , city, overpass function blown strengthen day by day in communications and transportation, the development of and the communications and

16、 transportation has caused the rapid rising of the traffic accident, traffic Safe and own through becoming a great world difficult problemThe rigidity guardrail is offended the guardrail form not basically out of shape by the automobile, generally point the concept of adopting safe appearance of gua

17、rdrail of modes in Chinese operatic music of concrete wall of concrete guardrail , through the different sides of slope of appearance mainly, make the automobile moderate , it is high to climb, change direction, last making not colliding kinds of guardrail angle smaller than 100 car not medium-sized

18、 making a change effective to, make automobile receive lighter damage, as angle of colliding, collide when relatively heavy speed having, the automobile damages seriously.According to rigidity with can divide into flexible guardrail , semi-rigid guardrail and rigidity guardrail safe form of guardrai

19、l. 1)The flexible guardrail generally points the cable guardrail , is one kind with structure that fixes of many roots on the pillar of cable of exerting prestressing force, totally relying on the stress of drawing of the cable to resist the vehicle and collide, the form is beautiful , not oppressin

20、g the sense while going, but the sight leads worse, the fabrication cost is relatively high, do not generally use. 2)The semi-rigid guardrail generally points the roof beam type guardrail , is a kind of roof beam type structure fixed with the pillar , depend on the guardrail crooked and out of shape

21、 and a pulling force resist the collision of the vehicle. There are a lot of kinds of the roof beam type guardrail , use the most extensive one to be the roof beam guardrail of the wave form . Have certain rigidity and toughness, easy to change after damaging, can lead the sight , the appearance is

22、beautiful . 3)The rigidity guardrail generally points the cement concrete wall type guardrail , is a kind of concrete wall type structure of cement with certain section form , rely on the automobile to climb high , out of shape and rubing to absorb the energy of colliding . The guardrail security hi

23、gh, can prevent two accident effectively, itself difficult to damage, the maintenance cost is low, but have sense of oppressing to go to the vehicle, it is relatively serious to damage the vehicle.Security guardrail of expressway should prevent high-speed vehicle that go from exceed outlet, pass thr

24、ough central authorities is it is it is it to lane , can lead the drivers sight correctly to intrude upon to take to separate, make the vehicle get back to normal travel direction, and it is minimum to reduce malignant degree of the accident to. In a word, high-speed highway safety guardrail reduce

25、traffic accident and reduce accident malignant effective measure of degree, but in shouldnt set up place of the guardrail set up the guardrail , become the new barrier instead, it is dangerous to increase the accident. So, should grasp the characteristic of the guardrail to the design of the safe gu

26、ardrail first and combine the traffic condition of the expressway, on the premise of meeting basic function of the guardrail , select the suitable guardrail form for use, adopt the rational establishment principle.Because topographical terms , make the investment and technological terms to restrain

27、from many kinds of factor, way side have barrier unavoidably, to exceed vehicle of outlet form the potential danger. Way side guardrail set up in be able to reduce accident serious place of degree only, its design principle is confirmed according to peoples subjective judgement of such factors as cl

28、ass of highway , volume of traffic , vehicle making up and way side characteristic ,etc.The most ideal guardrail form is that meet functions needs as well as the cost is the lowest, and elegant in appearance, and can lead the sight of driving a vehicle . The cable guardrail is suitable for not havin

29、g evenly no sinking , snow , long straight line , highway section with the special beautiful demand ; The concrete guardrail is suitable for very dangerous stepping such highway sections as the river bridge , cliff ,etc.; Wave form guardrail have heavy suitability, suitable for all highway section b

30、asically, especially small radius curved dish is it lead highway section of sight to need. Require according to norm and Hunan Province many pieces of high-speed highway safety guardrail design experience, the general way side of highway section adopts the roof beam guardrail of the wave form , the

31、specific very difficult dangerous highway section adopts the concrete guardrail .In a situation that the volume of traffic is big, vehicle go at a high speed, is it cross central authorities separate the situation led to happen, may produce the serious consequence , so, the central authorities separ

32、ate the width that bring as the important basis of setting up guardrail . Anticollision cushion through absorb vehicle collide energy make vehicles stopping safely, make the vehicle change travel direction, avoid the department and take advantage of personnels receiving facilities of the serious inj

33、ury. The anticollision cushion is with low costs, have very high security performance . It mainly applies from taking in the middle of not having to bringing and carrying out the transition while having, the usual friendship channelizing island shunts one, has regular barriers when the pilosity highway section of the traffic accident. The